persisted column - Page 348

Exporting only visible datagridview columns to excel

- by Suresh E

Need help on exporting only visible DataGridView columns to excel, I have this code for hiding columns in DataGridView. this.dg1.Columns[0].Visible = false; And then I have button click event for exporting to excel. // creating Excel Application Microsoft.Office.Interop.Excel._Application app = new Microsoft.Office.Interop.Excel._Application(); // creating new WorkBook within Excel application Microsoft.Office.Interop.Excel._Workbook workbook = app.Workbooks.Add(Type.Missing); // creating new Excelsheet in workbook Microsoft.Office.Interop.Excel._Worksheet worksheet = null; // see the excel sheet behind the program app.Visible = true; // get the reference of first sheet. By default its name is Sheet1. // store its reference to worksheet worksheet = workbook.Sheets["Sheet1"]; worksheet = workbook.ActiveSheet; // changing the name of active sheet worksheet.Name = "PIN korisnici"; // storing header part in Excel for (int i = 1; i < dg1.Columns.Count + 1; i++) { worksheet.Cells[1, i] = dg1.Columns[i - 1].HeaderText; } // storing Each row and column value to excel sheet for (int i = 0; i < dg1.Rows.Count - 1; i++) { for (int j = 0; j < dg1.Columns.Count; j++) { worksheet.Cells[i + 2, j + 1] = dg1.Rows[i].Cells[j].Value.ToString(); } } but I want to export only visible columns, while I get all of them, anyone, help on this.

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Use cell formatting (e.g. "Good", "Bad", "Neutral") in formulas?

- by ngm

I am compiling a comparison of different pieces of software in an Excel spreadsheet. It is a big long list of features (the rows), with each column being one of the applications I'm evaluating. I've used styles to visually show how well each product meets each feature, as well as the importance of that feature, and now I'm wondering if there's a way I can use those annotations in a formula. The table is like: . | Product A | Product B | Product C Feature A | blah blah blah Feature B | blah blah blah Feature C | blah blah blah .... | .... | etc | Where I've put 'blah' in the table above, in my actual spreadsheet is (potentially lengthy) descriptive text explaining something about this feature in the given product. I've then used the styles "Good", "Neutral" and "Bad" to visually annotate the description, to show how well each product meets that feature. For each feature I've also used the styles Accent4, 60% Accent4, 40% Accent4, etc, to annotate the importance of each feature. Now I'm wondering if somehow I can use those styles (the annotations) to tot up a total score for each product. e.g., Score for feature A = valueof(60% Accent4) * valueof(Good) Is it possible at all?

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MySQL Tables Missing/Corrupt After Recreation

- by Synetech inc.

Hi, Yesterday I dumped my MySQL databases to an SQL file and renamed the ibdata1 file. I then recreated it and imported the SQL file and moved the new ibdata1 file to my MySQL data directory, deleting the old one. I’ve done it before without issue, however this time something is not right. When I examine the (personal, not MySQL config) databases, they are all there, but they are empty… sort of. The data directory still has the .ibd files with the correct content in them and I can view the table list in the databases, but not the tables themselves. (I have file-per-table enabled, and am using InnoDB as default for everything.) For example with the urls database and its urls table, I can successfully open mysql.exe or phpMyAdmin and use urls;. I can even show tables; to see the expected table, but then when I try to describe urls; or select * from urls;, it complains that the table does not exist (even though it just listed it). (The MySQL Administrator lists the databases, but does not even list the tables, it indicates that the dbs are completely empty.) The problem now is that I have already deleted the SQL file (and cannot recover it even after scouring my hard-drive). So I am trying to figure out a way to repair these databases/tables. I can’t use the table repair function since it complains that the table does not exist, and I can’t dump them because again, it complains that the tables don’t exist. Like I’ve said, the data itself is still present in the .ibd files and the table names are present. I just need a way to get MySQL to recognize that the tables exist in the databases (I can find the column names of the tables in question in the ibdata1 file using a hex-editor). Any idea how I can repair this type of corruption? I don’t mind rolling up my sleeves, digging in, and taking a bunch of steps to fix it. Thanks a lot.

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vSphere education - What are the downsides of configuring virtual machines with too much RAM?

- by ewwhite

VMware memory management seems to be a tricky balancing act. With cluster RAM, Resource Pools, VMware's management techniques (TPS, ballooning, host swapping), in-guest RAM utilization, swapping, reservations, shares and limits, there are a lot of variables. I'm in a situation where clients are using dedicated vSphere cluster resources. However, they are configuring the virtual machines as though they were on physical hardware. In turn, this means a standard VM build may have 4 vCPUs and 16GB or more of RAM. I come from the school of starting small (1 vCPU, minimal RAM), checking real-world use and adjusting up as necessary. Some examples from a "problem" cluster. Resource pool summary - Looks almost 4:1 overcommitted. Note the high amount of ballooned RAM. Resource allocation - The Worst Case Allocation column shows that these VMs would have access to less than 50% of their configured RAM under constrained conditions. The real-time memory utilization graph of the top VM in the listing above. 4 vCPU and 64GB RAM allocated. It averages under 9GB use. Summary of the same VM What are the downsides of overcommitting and overconfiguring resources (specifically RAM) in vSphere environments? Assuming that the VMs can run in less RAM, is it fair to say that there's overhead to configuring virtual machines with more RAM than they need? What is the counter-argument to: "if a VM has 16GB of RAM allocated, but only uses 4GB, what's the problem??"? E.g. do customers need to be educated? What specific metric should be used to meter RAM usage. Tracking the peaks of "Active" versus time?

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Apache intermittently aborting requests

- by Adam Phillips

I have just been dealing with a problem whereby http requests are being aborted, seemingly at random. On any particular page in the website, when you opened a page, a number of the assets (img, css, etc) failed to load. If you refreshed, the page may work fine, the same set of assets may fail to load or different assets may fail to load. The net tab in firefox was returning 'Aborted' in the HTTP status code column for the failed assets, even tho in the case of images, the image previews were still working. There was nothing in any of the apache logs about the requests that failed, however since it seemed to point to an apache issue, we restarted apache. The first time we tried, it made no difference but about 10 minutes later, in the absence of a better solution we tried again. Bizarrely, the problem disappeared immeadiately. So now the site seems to be running fine again but its rather unsettling, both the intermittent nature of the problem and the lack of an explanation for its resolution. Has anyone seen anything like this before and if so did you find out the reason behind it? Many Thanks

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Excel: How to treat multiple lines as one while sorting?

- by crono

I get a XLS-File as a database report. The File is in the following format: | Customer | Name | ... | Orders 1 | 6 | ... | ... | 1234 2 | | | | 4567 3 | | | | 8910 4 | 3 | ... | ... | 3210 5 | | | | 8765 6 | 1 | ... | ... | 1000 7 | | | | 1001 I need to sort this thing on a column which is only "filled" in the first line of a "record" (here: Line 1-3, 4+5, 6+7) like "Customer" in this example. Is there a way (without falling back to VBA) to keep the lines together which form a "record" while sorting on them. I know, this is abusing Excel but I have no other choise here. The expected output after sorting on "Customer" would be: | Customer | Name | ... | Orders 1 | 1 | ... | ... | 1000 2 | | | | 1001 3 | 3 | ... | ... | 3210 4 | | | | 8765 5 | 6 | ... | ... | 1234 6 | | | | 4567 7 | | | | 8910

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IIS Web Farm Framework servers are automatically set to "unavailable" even when they are healthy... And they never return to the available state!

- by JohannesH

I have 2 web farm configurations, one with 2 member servers and one with 3 member servers. I have health monitoring set up on both farms and the monitoring tool reports all servers as being healthy. However after a while all the servers are marked as being "Unavailable" and "Healthy" in the "Monitoring and Management" screen (in the "Servers" screen they are all listed with "Yes" in the "Ready for Load Balancing" column). Viewing the event log on both the web farm controller or any of farm servers doesn't reveal anything interesting. there are no warnings or errors in the period where the servers became unavailable. There are a couple of informational events about the worker process getting shut down due to inactivity but I don't hope this is the cause since that would mean that the farms will die during the night when the load is low. Am I missing something? EDIT: Btw, I think its very odd that the application pool shuts down on the servers since the health monitoring system is polling an aspx page on each server. Shouldn't that keep them going? EDIT2: Now I've also experienced this problem with the RTW version of Web Farm Framework 2.

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How can I get (g)Vim to display the character count of the current file?

- by OwenP

I like to write tutorials and articles for a programming forum I frequent. This forum has a character limit per post. I've used Notepad++ in the past to write posts and it keeps a live character count in the status bar. I'm starting to use gVim more and I really don't want to go back to Notepad++ at this point, but it is very useful to have this character count. If I go over the count, I usually end up pasting the post into Notepad++ so I can see when I've trimmed enough to get by the limit. I've seen suggestions that :set ruler would help, but this only gives the character count via the current column index on the current line. This would be great if I didn't use paragraph breaks, but I'm sure you'd agree that reading several thousand characters in one paragraph is not comfortable. I read the help and thought that rulerformat would work, but after looking over the statusline format it uses I didn't see anything that gives a character count for the current buffer. I've seen that there are plugins that add this, but I'm still dipping my toes into gVim and I'm not sure I want to load random plugins before I understand what they do. I'd prefer to use something built in to vim, but if it doesn't exist it doesn't exist. What should I do to accomplish my goal? If it involves a plugin, do you use it and how well does it work?

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Problems in Table of Contents formatting

- by ChrisW

Two questions about captions in Word (they are related, hence the same post): Using Word 2010 (and its inbuilt equation editor) I've got figure captions which contain equations (well, actually, they represent chemical equations, such as nitrate, for which the correct representation is NO3- where the 3 is subscript and the - is superscript, but in the same column). However, when I generate a figure list, the equation displays as NO3- (with no subscript or superscript) - Word knows it's an equation though (the Equation Tools design ribbon/tab is displayed when I click on the NO3-). I've tried changing it from Professional to Linear and similar other obvious options, but still can't get it to display correctly. File to show this problem in action: http://dl.dropbox.com/u/101867759/EqtnTest.docx - note how the (chemical) equation for nitrate is rendered correctly in the 'caption' on Page 2, but not in the ToC on page 1. I have another caption where the whole figure is included in my list of figures. When I double click on the caption in my text, the caption is highlighted (as expected), but so is the figure (this doesn't happen with any of my other figures) so I assume that the figure has been 'linked' in some way to the text - how do I remove this link?

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Creating MS Word 2010 Relative Links?

- by leeand00

Okay here is what I've tried so far for creating relative links in my MS Word Documents. In my document from the ribbon I select the File tab. I then select Info from the side bar. Click the properties drop down from the right hand column. (a bit difficult to find initially, since it looks like text not a drop down, but it's there). Click Advanced Properties The <document-name>.docx Properties Dialog Appears I enter .\ to specify that I want a relative path for the links in my document. I click OK. I go back into my document select some text and attempt to make a link out of it clicking the Insert tab of the ribbon, and then clicking Hyperlink. I then select a document from the current folder, and strip the full path from it, leaving just the name of the .docx file to which I wish to link. Then I click OK. The link appears, I try to click it using Ctrl+Click. I am informed that the address of the site is not valid. Check the address and try again. What could I possibly be doing wrong here? I just want a relative link. It's so easy in to do this in HTML.

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IIS Web Farm Framework servers are automatically set to "unavailable" even when they are healthy... And they never return to the available state!

- by JohannesH

I have 2 web farm configurations, one with 2 member servers and one with 3 member servers. I have health monitoring set up on both farms and the monitoring tool reports all servers as being healthy. However after a while all the servers are marked as being "Unavailable" and "Healthy" in the "Monitoring and Management" screen (in the "Servers" screen they are all listed with "Yes" in the "Ready for Load Balancing" column). Viewing the event log on both the web farm controller or any of farm servers doesn't reveal anything interesting. there are no warnings or errors in the period where the servers became unavailable. There are a couple of informational events about the worker process getting shut down due to inactivity but I don't hope this is the cause since that would mean that the farms will die during the night when the load is low. Am I missing something? EDIT: Btw, I think its very odd that the application pool shuts down on the servers since the health monitoring system is polling an aspx page on each server. Shouldn't that keep them going? EDIT2: Now I've also experienced this problem with the RTW version of Web Farm Framework 2.

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Linux 'top' utility widly inaccurate (more so for multi-CPU/core hardware)?

- by amn

Hi all. After using 'top' for long time, albeit basically, I have grown to distrust it's '% CPU' column reports. I have a 8-core (quad core Intel i7 920 with hyperthreading) hardware, and see some wild numbers when running a process that should not use more than 5% overall. top happily reports 50%, and I suspect it is not so. My question is, is it a known fact that it's inaccurate when several CPUs/cores are present? I used 'mpstat' from the 'sysstat' package, and it's showings are much more conservative, certainly within my expectations. I did press '1' for 'top' to switch it to show all the core and us/sy/io stats, but the numbers are substantially higher than with 'mpstat'... I know that my expectations can be unfound as well, but my gut feeling tells me 'top' is wrong! :-) The reason I need to know is because the process I am monitoring only guarantees quality of service with CPU usage "less than 80%" (however vague that sounds), and I need to know how much headroom I have left. It's a streaming server.

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Excel 2013: VLookup for cells that share common characters within cell but are both surrounded by other non-matching text

- by Kylie Z

I am pulling information from 2 different databases. The databases use different naming protocol for the exact same item/specified placement however they always have certain components of the name in common. The length of these names can vary throughout each of the databases (see the pic below) so I don't think counting characters would help. I need a formula (probably a vlookup/match/index of some sort) to pair up the names from the 2nd database name with the 1st database name and then place it in the adjacent column(B2) on sheet1. Until this point I've had to match, copy, and paste the pairs manually from one sheet to the other and it takes FOREVER. Any help would be much appreciated!!! For example: Database1 Name in Sheet1,A2: 728x90_Allstate_629930_ALL_JUL_2013_MASSACHUSETTSAUTO_BAN_MSN_ROSMSNAUTOSMASSACHUSETTS_7.2.13 Database2 Name in Sheet2, A13: BAN_MSN_ROSMSNAUTOSMASSACHUSETTS728X90_728X90_DFA Common Factors: "ROSMSNAUTOSMASSACHUSETTS" & "728X90" Therefore A2 and A13 need to pair up In some cases, Database 1 and 2 will have a common name aspect but sizing will be different. They need to have BOTH aspects in common in order to be paired so I would NOT want the below example to pair up. Database1 Name in Sheet1,A2: 728x90_Allstate_629930_ALL_JUL_2013_MASSACHUSETTSAUTO_BAN_MSN_ROSMSNAUTOSMASSACHUSETTS_7.2.13 Database2 Name in Sheet2, A12: BAN_MSN_ROSMSNAUTOSMASSACHUSETTS300X250_300X250_DFA Common Factor: Only "ROSMSNAUTOSMASSACHUSETTS" matches. "728x90" is not equal to "300X250" - Sizing is different so they should not be paired.

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File gone or altered after MySQL[HY000][2002] error [on hold]

- by Psyberion

I'm working on a rather small project, and today I got an SQLSTATE[HY000][2002]:Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' error. After a bit of googling and a few attempts to restart the mysqld service, I gave up and tried rebooting the computer. This did the trick, MySQL was now running fine. I did, however, get a more serious issue: Some files were missing, others were altered. Also, a few posts in the MySQL was gone. It's really strange, it's like the whole project has been reset two or three days, and I have no clue why. Some additional details about this: I save my files after every line of code. I'm religious about this. So I haven't lost the files that way. I was accessing the server via SSH when the error occurred, so I did the programming and the reboot over SSH. The server is a Raspberry Pi, model B, with Raspian on which I run Apache2. I was viewing the site and had an active session when I rebooted the system. The pages I lost did work just before this all happened. The MySQL fault occurred when I tried to add a text NOT NULL column to a table which had entries. Now, the amount of lost work isn't really that much, so I'm not really looking for help recovering the files. The reason I'm posting this is because I wonder how did this happen, and why?

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Mysql: Working With 192 Trillion Records... (Yes, 192 Trillion)

- by Sarah

Here's the question... Considering 192 trillion records, what should my considerations be? My main concern is speed. Here's the table... CREATE TABLE `ref` ( `id` INTEGER(13) AUTO_INCREMENT DEFAULT NOT NULL, `rel_id` INTEGER(13) NOT NULL, `p1` INTEGER(13) NOT NULL, `p2` INTEGER(13) DEFAULT NULL, `p3` INTEGER(13) DEFAULT NULL, `s` INTEGER(13) NOT NULL, `p4` INTEGER(13) DEFAULT NULL, `p5` INTEGER(13) DEFAULT NULL, `p6` INTEGER(13) DEFAULT NULL, PRIMARY KEY (`id`), KEY (`s`), KEY (`rel_id`), KEY (`p3`), KEY (`p4`) ); Here's the queries... SELECT id, s FROM ref WHERE red_id="$rel_id" AND p3="$p3" AND p4="$p4" SELECT rel_id, p1, p2, p3, p4, p5, p6 FROM ref WHERE id="$id" INSERT INTO rel (rel_id, p1, p2, p3, s, p4, p5, p6) VALUES ("$rel_id", "$p1", "$p2", "$p3", "$s", "$p4", "$p5", "$p6") Here's some notes... The SELECT's will be done much more frequently than the INSERT. However, occasionally I want to add a few hundred records at a time. Load-wise, there will be nothing for hours then maybe a few thousand queries all at once. Don't think I can normalize any more (need the p values in a combination) The database as a whole is very relational. This will be the largest table by far (next largest is about 900k) UPDATE (08/11/2010) Interestingly, I've been given a second option... Instead of 192 trillion I could store 2.6*10^16 (15 zeros, meaning 26 Quadrillion)... But in this second option I would only need to store one bigint(18) as the index in a table. That's it - just the one column. So I would just be checking for the existence of a value. Occasionally adding records, never deleting them. So that makes me think there must be a better solution then mysql for simply storing numbers... Given this second option, should I take it or stick with the first... [edit] Just got news of some testing that's been done - 100 million rows with this setup returns the query in 0.0004 seconds [/edit]

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Dependency Property WPF Grid

- by developer

Hi All, I want to Bind the textblock text in WPF datagrid to a dependency property. Somehow, nothing gets displayed, but when I use the same textblock binding outside the grid, everything works fine. Below is my code, <Window.Resources> <Style x:Key="cellCenterAlign" TargetType="{x:Type toolkit:DataGridCell}"> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type toolkit:DataGridCell}"> <Grid Background="{TemplateBinding Background}"> <ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center"/> </Grid> </ControlTemplate> </Setter.Value> </Setter> </Style> <Style x:Key="ColumnHeaderStyle" TargetType="{x:Type toolkit:DataGridColumnHeader}"> <Setter Property="VerticalContentAlignment" Value="Center" /> <Setter Property="HorizontalContentAlignment" Value="Center"/> </Style> <ObjectDataProvider MethodName="GetValues" ObjectType="{x:Type sys:Enum}" x:Key="RoleValues"> <ObjectDataProvider.MethodParameters> <x:Type TypeName="domain:SubscriptionRole"/> </ObjectDataProvider.MethodParameters> </ObjectDataProvider> <DataTemplate x:Key="myTemplate"> <StackPanel> <TextBlock Text="{Binding Path=OtherSubs}"/> </StackPanel> </DataTemplate> </Window.Resources> <Grid> <Grid.RowDefinitions> <RowDefinition Height="220"/> <RowDefinition Height="Auto"/> </Grid.RowDefinitions> <StackPanel Grid.Row="0"> <toolkit:DataGrid Name="definitionGrid" Margin="0,10,0,0" AutoGenerateColumns="False" CanUserAddRows="False" CanUserDeleteRows="False" IsReadOnly="False" RowHeight="25" FontWeight="Normal" ItemsSource="{Binding programSubscription}" ColumnHeaderStyle="{DynamicResource ColumnHeaderStyle}" SelectionMode="Single" ScrollViewer.HorizontalScrollBarVisibility="Disabled" Width="450" ScrollViewer.VerticalScrollBarVisibility="Auto" Height="200"> <toolkit:DataGrid.Columns> <toolkit:DataGridTextColumn Header="Program" Width="80" Binding="{Binding Program.JobNum}" CellStyle="{StaticResource cellCenterAlign}" IsReadOnly="True"/> <toolkit:DataGridTemplateColumn Header="Role" Width="80" CellStyle="{StaticResource cellCenterAlign}"> <toolkit:DataGridTemplateColumn.CellTemplate> <DataTemplate> <ComboBox SelectedItem="{Binding Role}" ItemsSource="{Binding Source={StaticResource RoleValues}}" Width="70"> <ComboBox.Style> <Style> <Style.Triggers> <DataTrigger Binding="{Binding Path=Role}" Value="Owner"> <Setter Property="ComboBox.Focusable" Value="False"/> <Setter Property="ComboBox.IsEnabled" Value="False"/> <Setter Property="ComboBox.IsHitTestVisible" Value="False"/> </DataTrigger> </Style.Triggers> </Style> </ComboBox.Style> </ComboBox> </DataTemplate> </toolkit:DataGridTemplateColumn.CellTemplate> </toolkit:DataGridTemplateColumn> <toolkit:DataGridCheckBoxColumn Header="Email" Width="60" Binding="{Binding ReceivesEmail}" CellStyle="{StaticResource cellCenterAlign}"/>  <toolkit:DataGridTemplateColumn Header="Others" Width="220" CellStyle="{StaticResource cellCenterAlign}" IsReadOnly="True"> <toolkit:DataGridTemplateColumn.CellTemplate> <DataTemplate> <TextBlock Text="{Binding Path=OtherSubs}"/> </DataTemplate> </toolkit:DataGridTemplateColumn.CellTemplate> </toolkit:DataGridTemplateColumn> </toolkit:DataGrid.Columns> </toolkit:DataGrid> <TextBlock Text="{Binding Path=OtherSubs}"/> </StackPanel> <Grid Grid.Row="1"> <Grid.ColumnDefinitions> <ColumnDefinition Width="200"/> <ColumnDefinition Width="*"/> </Grid.ColumnDefinitions> <StackPanel Grid.Column="0" HorizontalAlignment="Center" VerticalAlignment="Center"> <CheckBox Content="Show Only Active Programs" IsChecked="True" Margin="0,0,8,0"/> </StackPanel> <StackPanel Orientation="Horizontal" VerticalAlignment="Center" Grid.Column="1" HorizontalAlignment="Right"> <Button Content="Save" Height="23" Width="75" Margin="0,0,8,0" Click="Save_Click"/> <Button Content="Cancel" Height="23" Width="75" Margin="0,0,8,0" Click="Cancel_Click" /> </StackPanel> </Grid> </Grid> Code-Behind public partial class ProgramSubscriptions : Window { public static ObservableCollection programSubscription { get; set; } public string OtherSubs { get { return (string)GetValue(OtherSubsProperty); } set { SetValue(OtherSubsProperty, value); } } public static readonly DependencyProperty OtherSubsProperty = DependencyProperty.Register("OtherSubs", typeof(string), typeof(ProgramSubscriptions), new UIPropertyMetadata(string.Empty)); private string CurrentUsername = "test"; public ProgramSubscriptions() { InitializeComponent(); DataContext = this; LoadData(); } protected void LoadData() { programSubscription = new ObservableCollection<ProgramSubscriptionViewModel>(); if (res != null && res.TotalResults > 0) { List<ProgramSubscriptionViewModel> UserPrgList = new List<ProgramSubscriptionViewModel>(); //other.... List<ProgramSubscriptionViewModel> OtherPrgList = new List<ProgramSubscriptionViewModel>(); ArrayList myList = new ArrayList(); foreach (DomainObject obj in res.ResultSet) { ProgramSubscription prg = (ProgramSubscription)obj; if (prg.Subscriber.Username == CurrentUsername) { UserPrgList.Add(new ProgramSubscriptionViewModel(prg)); myList.Add(prg.Program.ID); } else OtherPrgList.Add(new ProgramSubscriptionViewModel(prg)); } for (int i = 0; i < UserPrgList.Count; i++) { ProgramSubscriptionViewModel item = UserPrgList[i]; programSubscription.Add(item); } //other.... for (int i = 0; i < OtherPrgList.Count; i++) { foreach (int y in myList) { ProgramSubscriptionViewModel otheritem = OtherPrgList[i]; if (y == otheritem.Program.ID) OtherSubs += otheritem.Subscriber.Username + ", "; } } } } } I posted the entire code. What exactly I want to do is in the datagridtemplatecolumn for others I want to display the usernames that are not in CurrentUsername, but they have the same program Id as the CurrentUsername. Please do let me know if there is another way that i can make this work, instead of using a dependencyproperty, althouht for testing I did put a textblock below datagrid, and it works perfectly fine.. Help!

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CSS IE Hover Effect - Overlapping Elements, Display:Block, and Crashes

- by Emtucifor

In a fairly simple page, I have some text appear on hover over some links, like a tooltip. To start with here's my test page I'm working with: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <title>Tooltip Test Page</title> <style type="text/css"> html, body, form, table, tr, td, div, p, h1, h2, h3, h4, h5 { border:0; margin:0; padding:0; } body { margin:10px; } html, body, table { font-family:Arial, Helvetica, sans-serif; font-size:12px; } h1 { font-weight:bold; font-size:16px; } table {border-collapse:collapse;} td {padding:0 8px 0 0;} a.tooltip { z-index:24; text-decoration:none; cursor:default; position:relative; color:#000; display:block; width:100px; } a.tooltip span {display:none;} a.tooltip:hover, a.tooltip:active { z-index:25; color:; background:; /* the color and background actually don't matter for their values, it's just that these have to change for IE to apply this style properly. Leaving out the color or the background makes this fail in different ways. */ } a.tooltip:hover span, a.tooltip:active span { display:block; position:absolute; color:black; background-color:#FFFFCC; border:1px solid black; padding:1px; text-align:left; top:0; left:0; margin-top:-1px; } td span.s5 {color:#ff0000} td span.s6 {color:#0000ff} </style> <script type="text/javascript"> function labelSubmit(label) { document.getElementById('o').value=label; document.BackAt.submit(); } </script> </head> <body> <h1>tooltip Test Page</h1> <table> <tbody> <tr> <td><span class="s6">■</span> Name 3</td> <td class="status"><a class="tooltip" href="" onclick="return false;">Status 6<span>Some very long tooltip text to demonstrate the problem by overlapping the cells below.</span></a></td> </tr> <tr> <td><span class="s6">■</span> Name 1</td> <td class="status"><a class="tooltip" href="" onclick="return false;">Status 6</a></td> </tr> <tr> <td><span class="s6">■</span> Name 2</td> <td class="status"><a class="tooltip" href="" onclick="return false;">Status 6<span>Some tooltip text</span></a></td> </tr> <tr> <td><span class="s6">■</span> Name 4</td> <td class="status"><a class="tooltip" href="" onclick="return false;">Status 6</a></td> </tr> <tr> <td><span class="s5">■</span> Name 5</td> <td class="status"><a class="tooltip" href="" onclick="return false;">Status 5<span>More Notes</span></a></td> </tr> <tr> <td><span class="s6">■</span> Name 6</td> <td class="status"><a class="tooltip" href="" onclick="return false;">Status 6<span>Yet more notes</span></a></td> </tr> </tbody> </table> </body> </html> The problem I'm experiencing is that text from other values shows through the tooltip text. Hover over the first row, second column to see the effect. There are a couple of things I'm trying to accomplish: Make the activation area for the hover wider, so hovering over some space to the right of "Status 6" calls up the tooltip (say, 100-150px total width of target). At first, when I was adding "display:block" to a.tooltip, IE was terminating on hover. I resolved that by removing width:14em from a.tooltip:hover. Styling the width of the hover event + display.block on the a element does BAD things. Change the width of the tooltip without changing the width of the column/parent element (so the tooltip can be wider than itso it takes up less vertical space). Options for making the tooltips change width with its contents up to a max width, at which point the lines wrap would be awesome, but probably impossible in IE. As soon as I put a width in place on a.tooltip, the portion of the tooltip that is above other rows than the hover source let text show through from those cells. Remove the width and you'll see that the text doesn't show through any more. The hover effect applies to the entire tooltip, so if the tooltip covers 3 rows, while moving the mouse downward, the next 2 rows won't activate because the cursor hasn't left the tooltip. Can the hover effect apply only to the initial element hovered over and not the tooltip itself so moving the mouse downward will show each tooltip in each row? It would be nice if the links could never be activated (they can't take the focus). I don't know if that's possible. Too bad IE doesn't support hover on any elements but links. Note: soon IE6 will be abandoned in favor of IE8. If it makes a big difference, then IE8 can be the target browser instead. Thanks for your help.

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wpf treeview collapse/expand option disappeared

- by Muhammad Adnan

I used following code  <Style x:Key="{x:Type TreeView}" TargetType="TreeView"> <Setter Property="OverridesDefaultStyle" Value="True" /> <Setter Property="SnapsToDevicePixels" Value="True" /> <Setter Property="ScrollViewer.HorizontalScrollBarVisibility" Value="Auto"/> <Setter Property="ScrollViewer.VerticalScrollBarVisibility" Value="Auto"/> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="TreeView"> <Border Name="Border" CornerRadius="1" Background="{StaticResource WindowBackgroundBrush}" BorderBrush="{StaticResource SolidBorderBrush}" BorderThickness="1"> <ScrollViewer Focusable="False" CanContentScroll="False" Padding="4"> <ItemsPresenter/> </ScrollViewer> </Border> </ControlTemplate> </Setter.Value> </Setter> </Style>  <Style x:Key="TreeViewItemFocusVisual"> <Setter Property="Control.Template"> <Setter.Value> <ControlTemplate> <Border> <Rectangle Margin="0,0,0,0" StrokeThickness="5" Stroke="Black" StrokeDashArray="1 2" Opacity="0"/> </Border> </ControlTemplate> </Setter.Value> </Setter> </Style> <Style x:Key="{x:Type TreeViewItem}" TargetType="{x:Type TreeViewItem}"> <Setter Property="Background" Value="Transparent"/> <Setter Property="HorizontalContentAlignment" Value="{Binding Path=HorizontalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}"/> <Setter Property="VerticalContentAlignment" Value="{Binding Path=VerticalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}"/> <Setter Property="Padding" Value="1,0,0,0"/> <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"/> <Setter Property="FocusVisualStyle" Value="{StaticResource TreeViewItemFocusVisual}"/> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type TreeViewItem}"> <Grid> <Grid.ColumnDefinitions> <ColumnDefinition Width="Auto"/> </Grid.ColumnDefinitions> <Grid.RowDefinitions> <RowDefinition Height="Auto"/> <RowDefinition/> </Grid.RowDefinitions> <Border Name="Bd" Grid.Column="0" Background="{TemplateBinding Background}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Padding="{TemplateBinding Padding}"> <ContentPresenter x:Name="PART_Header" ContentSource="Header" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"/> </Border> <ItemsPresenter x:Name="ItemsHost" Visibility="Visible" Grid.Row="1" Grid.Column="0"/> </Grid> <ControlTemplate.Triggers> <MultiTrigger> <MultiTrigger.Conditions> <Condition Property="HasHeader" Value="false"/> <Condition Property="Width" Value="Auto"/> </MultiTrigger.Conditions> <Setter TargetName="PART_Header" Property="MinWidth" Value="75"/> </MultiTrigger> <MultiTrigger> <MultiTrigger.Conditions> <Condition Property="HasHeader" Value="false"/> <Condition Property="Height" Value="Auto"/> </MultiTrigger.Conditions> <Setter TargetName="PART_Header" Property="MinHeight" Value="19"/> </MultiTrigger> <Trigger Property="IsSelected" Value="true"> <Setter TargetName="Bd" Property="Background" Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}"/> <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.HighlightTextBrushKey}}"/> </Trigger> <MultiTrigger> <MultiTrigger.Conditions> <Condition Property="IsSelected" Value="true"/> <Condition Property="IsSelectionActive" Value="false"/> </MultiTrigger.Conditions> <Setter TargetName="Bd" Property="Background" Value="{DynamicResource {x:Static SystemColors.ControlBrushKey}}"/> <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"/> </MultiTrigger> <Trigger Property="IsEnabled" Value="false"> <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}"/> </Trigger> </ControlTemplate.Triggers> </ControlTemplate> </Setter.Value> </Setter> </Style> </Window.Resources> <Grid> <TreeView> <TreeViewItem Header="Node 1"> <TreeViewItem Header="Node 1.1"> <TreeViewItem Header="Node 1.1.1" /> </TreeViewItem> </TreeViewItem> <TreeViewItem Header="Node 2"> <TreeViewItem Header="Node 2.1"> <TreeViewItem Header="Node 2.1.1" /> </TreeViewItem> <TreeViewItem Header="Node 2.2"> <TreeViewItem Header="Node 2.2.1" /> </TreeViewItem> </TreeViewItem> </TreeView> </Grid> taken from this url... http://stackoverflow.com/questions/1526925/can-i-have-a-treeview-without-the-tree-structure NOW I AM HAVING PROBLEM. I LOST COLLAPSE/EXPAND OPTIONS... HOW CAN I HAVE WITH THIS CODE...

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Converting a WPFToolkit DataGrid from 1D list to 2D matrix

- by user61073

Hello - I am wondering if anyone has attempted the following or has an idea as to how to do it. I have a WPFToolkit DataGrid which is bound to an ObservableCollection of items. As such, the DataGrid is shown with as many rows in the ObservableCollection, and as many columns as I have defined in for the DataGrid. That all is good. What I now need is to provide another view of the same data, only, instead, the DataGrid is shown with as many cells in the ObservableCollection. So let's say, my ObservableCollection has 100 items in it. The original scenario showed the DataGrid with 100 rows and 1 column. In the modified scenario, I need to show it with 10 rows and 10 columns, where each cell shows the value that was in the original representation. In other words, I need to transform my 1D ObservableCollection to a 2D ObservableCollection and display it in the DataGrid. I know how to do that programmatically in the code behind, but can it be done in XAML? Let me simplify the problem a little, in case anybody can have a crack at this. The XAML below does the following: * Defines an XmlDataProvider just for dummy data * Creates a DataGrid with 10 columns o each column is a DataGridTemplateColumn using the same CellTemplate * The CellTemplate is a simple TextBlock bound to an XML element If you run the XAML below, you will find that the DataGrid ends up with 5 rows, one for each book, and 10 columns that have identical content (all showing the book titles). However, what I am trying to accomplish, albeit with a different data set, is that in this case, I would end up with one row, with each book title appearing in a single cell in row 1, occupying cells 0-4, and nothing in cells 5-9. Then, if I added more data and had 12 books in my XML data source, I would get row 1 completely filled (cells covering the first 10 titles) and row 2 would get the first 2 cells filled. Can my scenario be accomplished primarily in XAML, or should I resign myself to working in the code behind? Any guidance would greatly be appreciated. Thanks so much! <UserControl xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:custom="http://schemas.microsoft.com/wpf/2008/toolkit" mc:Ignorable="d" x:Name="UserControl" d:DesignWidth="600" d:DesignHeight="400" > <UserControl.Resources> <XmlDataProvider x:Key="InventoryData" XPath="Inventory/Books"> <x:XData> <Inventory xmlns=""> <Books> <Book ISBN="0-7356-0562-9" Stock="in" Number="9"> <Title>XML in Action</Title> <Summary>XML Web Technology</Summary> </Book> <Book ISBN="0-7356-1370-2" Stock="in" Number="8"> <Title>Programming Microsoft Windows With C#</Title> <Summary>C# Programming using the .NET Framework</Summary> </Book> <Book ISBN="0-7356-1288-9" Stock="out" Number="7"> <Title>Inside C#</Title> <Summary>C# Language Programming</Summary> </Book> <Book ISBN="0-7356-1377-X" Stock="in" Number="5"> <Title>Introducing Microsoft .NET</Title> <Summary>Overview of .NET Technology</Summary> </Book> <Book ISBN="0-7356-1448-2" Stock="out" Number="4"> <Title>Microsoft C# Language Specifications</Title> <Summary>The C# language definition</Summary> </Book> </Books> <CDs> <CD Stock="in" Number="3"> <Title>Classical Collection</Title> <Summary>Classical Music</Summary> </CD> <CD Stock="out" Number="9"> <Title>Jazz Collection</Title> <Summary>Jazz Music</Summary> </CD> </CDs> </Inventory> </x:XData> </XmlDataProvider> <DataTemplate x:Key="GridCellTemplate"> <TextBlock> <TextBlock.Text> <Binding XPath="Title"/> </TextBlock.Text> </TextBlock> </DataTemplate> </UserControl.Resources> <Grid x:Name="LayoutRoot"> <custom:DataGrid HorizontalAlignment="Stretch" VerticalAlignment="Stretch" IsSynchronizedWithCurrentItem="True" Background="{DynamicResource WindowBackgroundBrush}" HeadersVisibility="All" RowDetailsVisibilityMode="Collapsed" SelectionUnit="CellOrRowHeader" CanUserResizeRows="False" GridLinesVisibility="None" RowHeaderWidth="35" AutoGenerateColumns="False" CanUserReorderColumns="False" CanUserSortColumns="False"> <custom:DataGrid.Columns> <custom:DataGridTemplateColumn CellTemplate="{StaticResource GridCellTemplate}" Header="01" /> <custom:DataGridTemplateColumn CellTemplate="{StaticResource GridCellTemplate}" Header="02" /> <custom:DataGridTemplateColumn CellTemplate="{StaticResource GridCellTemplate}" Header="03" /> <custom:DataGridTemplateColumn CellTemplate="{StaticResource GridCellTemplate}" Header="04" /> <custom:DataGridTemplateColumn CellTemplate="{StaticResource GridCellTemplate}" Header="05" /> <custom:DataGridTemplateColumn CellTemplate="{StaticResource GridCellTemplate}" Header="06" /> <custom:DataGridTemplateColumn CellTemplate="{StaticResource GridCellTemplate}" Header="07" /> <custom:DataGridTemplateColumn CellTemplate="{StaticResource GridCellTemplate}" Header="08" /> <custom:DataGridTemplateColumn CellTemplate="{StaticResource GridCellTemplate}" Header="09" /> <custom:DataGridTemplateColumn CellTemplate="{StaticResource GridCellTemplate}" Header="10" /> </custom:DataGrid.Columns> <custom:DataGrid.ItemsSource> <Binding Source="{StaticResource InventoryData}" XPath="Book"/> </custom:DataGrid.ItemsSource> </custom:DataGrid> </Grid>

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TreeViewItem - Use ControlTemplate and HierarchicalDataTemplate together

- by CrownJ

I'm using HierarchicalDataTemplate in my TreeView, and I wanted to also overwrite the default template for the TreeViewItem so that when an item is selected, it only highlights the text, not including the icon next to it. <TreeView.ItemTemplate> <HierarchicalDataTemplate ItemsSource="{Binding Children}"> <TreeViewItem Style="{StaticResource TreeViewItemStyle}" Header="{Binding DisplayText}" /> </HierarchicalDataTemplate> </TreeView.ItemTemplate> <TreeView.Resources> <Style x:Key="TreeViewItemFocusVisual"> <Setter Property="Control.Template"> <Setter.Value> <ControlTemplate> <Rectangle/> </ControlTemplate> </Setter.Value> </Setter> </Style> <Style x:Key="ExpandCollapseToggleStyle" TargetType="{x:Type ToggleButton}"> <Setter Property="Focusable" Value="False"/> <Setter Property="Width" Value="19"/> <Setter Property="Height" Value="13"/> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type ToggleButton}"> <Border Width="19" Height="13" Background="Transparent"> <Border Width="9" Height="9" SnapsToDevicePixels="true" BorderBrush="#FF7898B5" BorderThickness="1" CornerRadius="1"> <Border.Background> <LinearGradientBrush EndPoint="1,1" StartPoint="0,0"> <GradientStop Color="White" Offset=".2"/> <GradientStop Color="#FFC0B7A6" Offset="1"/> </LinearGradientBrush> </Border.Background> <Path x:Name="ExpandPath" Fill="Black" Margin="1,1,1,1" Data="M 0 2 L 0 3 L 2 3 L 2 5 L 3 5 L 3 3 L 5 3 L 5 2 L 3 2 L 3 0 L 2 0 L 2 2 Z"/> </Border> </Border> <ControlTemplate.Triggers> <Trigger Property="IsChecked" Value="True"> <Setter Property="Data" TargetName="ExpandPath" Value="M 0 2 L 0 3 L 5 3 L 5 2 Z"/> </Trigger> </ControlTemplate.Triggers> </ControlTemplate> </Setter.Value> </Setter> </Style> <Style x:Key="{x:Type TreeViewItem}" TargetType="{x:Type TreeViewItem}"> <Setter Property="Background" Value="Transparent"/> <Setter Property="HorizontalContentAlignment" Value="{Binding HorizontalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}"/> <Setter Property="VerticalContentAlignment" Value="{Binding VerticalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}"/> <Setter Property="Padding" Value="1,0,0,0"/> <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"/> <Setter Property="FocusVisualStyle" Value="{StaticResource TreeViewItemFocusVisual}"/> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type TreeViewItem}"> <Grid> <Grid.ColumnDefinitions> <ColumnDefinition Width="Auto"/> <ColumnDefinition Width="Auto"/> <ColumnDefinition Width="*"/> </Grid.ColumnDefinitions> <Grid.RowDefinitions> <RowDefinition Height="Auto"/> <RowDefinition/> </Grid.RowDefinitions> <ToggleButton x:Name="Expander" Style="{StaticResource ExpandCollapseToggleStyle}" ClickMode="Press" IsChecked="{Binding IsExpanded, RelativeSource={RelativeSource TemplatedParent}}"/> <StackPanel Orientation="Horizontal" Grid.Column="1" > <Image Width="16" Height="16" Margin="3,0" Source="{Binding Path=ImageSource}" /> <Border x:Name="Bd" SnapsToDevicePixels="true" Background="{TemplateBinding Background}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Margin="0" Padding="0"> <ContentPresenter x:Name="PART_Header" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" ContentSource="Header"/> </Border> </StackPanel> <ItemsPresenter x:Name="ItemsHost" Grid.Column="1" Grid.ColumnSpan="2" Grid.Row="1"/> </Grid> <ControlTemplate.Triggers> <Trigger Property="IsExpanded" Value="false"> <Setter Property="Visibility" TargetName="ItemsHost" Value="Collapsed"/> </Trigger> <Trigger Property="HasItems" Value="false"> <Setter Property="Visibility" TargetName="Expander" Value="Hidden"/> </Trigger> <Trigger Property="IsSelected" Value="true"> <Setter Property="Background" TargetName="Bd" Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}"/> <Setter Property="Control.Foreground" TargetName="Bd" Value="{DynamicResource {x:Static SystemColors.HighlightTextBrushKey}}"/> </Trigger> <MultiTrigger> <MultiTrigger.Conditions> <Condition Property="IsSelected" Value="true"/> <Condition Property="IsSelectionActive" Value="false"/> </MultiTrigger.Conditions> <Setter Property="Background" TargetName="Bd" Value="{DynamicResource {x:Static SystemColors.ControlBrushKey}}"/> <Setter Property="Control.Foreground" TargetName="Bd" Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"/> </MultiTrigger> <Trigger Property="IsEnabled" Value="false"> <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}"/> </Trigger> </ControlTemplate.Triggers> </ControlTemplate> </Setter.Value> </Setter> <Style.Triggers> <Trigger Property="VirtualizingStackPanel.IsVirtualizing" Value="true"> <Setter Property="ItemsPanel"> <Setter.Value> <ItemsPanelTemplate> <VirtualizingStackPanel/> </ItemsPanelTemplate> </Setter.Value> </Setter> </Trigger> </Style.Triggers> </Style> </TreeView.Resources> I couldn't find a way to use both the HierarchicalDataTemplate and ControlTemplate together so I can specify the ItemsSource and also change parts of the control's behavior. When I do the above code, it won't select the treeviewitem at all.

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Solving embarassingly parallel problems using Python multiprocessing

- by gotgenes

How does one use multiprocessing to tackle embarrassingly parallel problems? Embarassingly parallel problems typically consist of three basic parts: Read input data (from a file, database, tcp connection, etc.). Run calculations on the input data, where each calculation is independent of any other calculation. Write results of calculations (to a file, database, tcp connection, etc.). We can parallelize the program in two dimensions: Part 2 can run on multiple cores, since each calculation is independent; order of processing doesn't matter. Each part can run independently. Part 1 can place data on an input queue, part 2 can pull data off the input queue and put results onto an output queue, and part 3 can pull results off the output queue and write them out. This seems a most basic pattern in concurrent programming, but I am still lost in trying to solve it, so let's write a canonical example to illustrate how this is done using multiprocessing. Here is the example problem: Given a CSV file with rows of integers as input, compute their sums. Separate the problem into three parts, which can all run in parallel: Process the input file into raw data (lists/iterables of integers) Calculate the sums of the data, in parallel Output the sums Below is traditional, single-process bound Python program which solves these three tasks: #!/usr/bin/env python # -*- coding: UTF-8 -*- # basicsums.py """A program that reads integer values from a CSV file and writes out their sums to another CSV file. """ import csv import optparse import sys def make_cli_parser(): """Make the command line interface parser.""" usage = "\n\n".join(["python %prog INPUT_CSV OUTPUT_CSV", __doc__, """ ARGUMENTS: INPUT_CSV: an input CSV file with rows of numbers OUTPUT_CSV: an output file that will contain the sums\ """]) cli_parser = optparse.OptionParser(usage) return cli_parser def parse_input_csv(csvfile): """Parses the input CSV and yields tuples with the index of the row as the first element, and the integers of the row as the second element. The index is zero-index based. :Parameters: - `csvfile`: a `csv.reader` instance """ for i, row in enumerate(csvfile): row = [int(entry) for entry in row] yield i, row def sum_rows(rows): """Yields a tuple with the index of each input list of integers as the first element, and the sum of the list of integers as the second element. The index is zero-index based. :Parameters: - `rows`: an iterable of tuples, with the index of the original row as the first element, and a list of integers as the second element """ for i, row in rows: yield i, sum(row) def write_results(csvfile, results): """Writes a series of results to an outfile, where the first column is the index of the original row of data, and the second column is the result of the calculation. The index is zero-index based. :Parameters: - `csvfile`: a `csv.writer` instance to which to write results - `results`: an iterable of tuples, with the index (zero-based) of the original row as the first element, and the calculated result from that row as the second element """ for result_row in results: csvfile.writerow(result_row) def main(argv): cli_parser = make_cli_parser() opts, args = cli_parser.parse_args(argv) if len(args) != 2: cli_parser.error("Please provide an input file and output file.") infile = open(args[0]) in_csvfile = csv.reader(infile) outfile = open(args[1], 'w') out_csvfile = csv.writer(outfile) # gets an iterable of rows that's not yet evaluated input_rows = parse_input_csv(in_csvfile) # sends the rows iterable to sum_rows() for results iterable, but # still not evaluated result_rows = sum_rows(input_rows) # finally evaluation takes place as a chain in write_results() write_results(out_csvfile, result_rows) infile.close() outfile.close() if __name__ == '__main__': main(sys.argv[1:]) Let's take this program and rewrite it to use multiprocessing to parallelize the three parts outlined above. Below is a skeleton of this new, parallelized program, that needs to be fleshed out to address the parts in the comments: #!/usr/bin/env python # -*- coding: UTF-8 -*- # multiproc_sums.py """A program that reads integer values from a CSV file and writes out their sums to another CSV file, using multiple processes if desired. """ import csv import multiprocessing import optparse import sys NUM_PROCS = multiprocessing.cpu_count() def make_cli_parser(): """Make the command line interface parser.""" usage = "\n\n".join(["python %prog INPUT_CSV OUTPUT_CSV", __doc__, """ ARGUMENTS: INPUT_CSV: an input CSV file with rows of numbers OUTPUT_CSV: an output file that will contain the sums\ """]) cli_parser = optparse.OptionParser(usage) cli_parser.add_option('-n', '--numprocs', type='int', default=NUM_PROCS, help="Number of processes to launch [DEFAULT: %default]") return cli_parser def main(argv): cli_parser = make_cli_parser() opts, args = cli_parser.parse_args(argv) if len(args) != 2: cli_parser.error("Please provide an input file and output file.") infile = open(args[0]) in_csvfile = csv.reader(infile) outfile = open(args[1], 'w') out_csvfile = csv.writer(outfile) # Parse the input file and add the parsed data to a queue for # processing, possibly chunking to decrease communication between # processes. # Process the parsed data as soon as any (chunks) appear on the # queue, using as many processes as allotted by the user # (opts.numprocs); place results on a queue for output. # # Terminate processes when the parser stops putting data in the # input queue. # Write the results to disk as soon as they appear on the output # queue. # Ensure all child processes have terminated. # Clean up files. infile.close() outfile.close() if __name__ == '__main__': main(sys.argv[1:]) These pieces of code, as well as another piece of code that can generate example CSV files for testing purposes, can be found on github. I would appreciate any insight here as to how you concurrency gurus would approach this problem. Here are some questions I had when thinking about this problem. Bonus points for addressing any/all: Should I have child processes for reading in the data and placing it into the queue, or can the main process do this without blocking until all input is read? Likewise, should I have a child process for writing the results out from the processed queue, or can the main process do this without having to wait for all the results? Should I use a processes pool for the sum operations? If yes, what method do I call on the pool to get it to start processing the results coming into the input queue, without blocking the input and output processes, too? apply_async()? map_async()? imap()? imap_unordered()? Suppose we didn't need to siphon off the input and output queues as data entered them, but could wait until all input was parsed and all results were calculated (e.g., because we know all the input and output will fit in system memory). Should we change the algorithm in any way (e.g., not run any processes concurrently with I/O)?

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Optimizing a lot of Scanner.findWithinHorizon(pattern, 0) calls

- by darvids0n

I'm building a process which extracts data from 6 csv-style files and two poorly laid out .txt reports and builds output CSVs, and I'm fully aware that there's going to be some overhead searching through all that whitespace thousands of times, but I never anticipated converting about about 50,000 records would take 12 hours. Excerpt of my manual matching code (I know it's horrible that I use lists of tokens like that, but it was the best thing I could think of): public static String lookup(List<String> tokensBefore, List<String> tokensAfter) { String result = null; while(_match(tokensBefore)) { // block until all input is read if(id.hasNext()) { result = id.next(); // capture the next token that matches if(_matchImmediate(tokensAfter)) // try to match tokensAfter to this result return result; } else return null; // end of file; no match } return null; // no matches } private static boolean _match(List<String> tokens) { return _match(tokens, true); } private static boolean _match(List<String> tokens, boolean block) { if(tokens != null && !tokens.isEmpty()) { if(id.findWithinHorizon(tokens.get(0), 0) == null) return false; for(int i = 1; i <= tokens.size(); i++) { if (i == tokens.size()) { // matches all tokens return true; } else if(id.hasNext() && !id.next().matches(tokens.get(i))) { break; // break to blocking behaviour } } } else { return true; // empty list always matches } if(block) return _match(tokens); // loop until we find something or nothing else return false; // return after just one attempted match } private static boolean _matchImmediate(List<String> tokens) { if(tokens != null) { for(int i = 0; i <= tokens.size(); i++) { if (i == tokens.size()) { // matches all tokens return true; } else if(!id.hasNext() || !id.next().matches(tokens.get(i))) { return false; // doesn't match, or end of file } } return false; // we have some serious problems if this ever gets called } else { return true; // empty list always matches } } Basically wondering how I would work in an efficient string search (Boyer-Moore or similar). My Scanner id is scanning a java.util.String, figured buffering it to memory would reduce I/O since the search here is being performed thousands of times on a relatively small file. The performance increase compared to scanning a BufferedReader(FileReader(File)) was probably less than 1%, the process still looks to be taking a LONG time. I've also traced execution and the slowness of my overall conversion process is definitely between the first and last like of the lookup method. In fact, so much so that I ran a shortcut process to count the number of occurrences of various identifiers in the .csv-style files (I use 2 lookup methods, this is just one of them) and the process completed indexing approx 4 different identifiers for 50,000 records in less than a minute. Compared to 12 hours, that's instant. Some notes (updated): I don't necessarily need the pattern-matching behaviour, I only get the first field of a line of text so I need to match line breaks or use Scanner.nextLine(). All ID numbers I need start at position 0 of a line and run through til the first block of whitespace, after which is the name of the corresponding object. I would ideally want to return a String, not an int locating the line number or start position of the result, but if it's faster then it will still work just fine. If an int is being returned, however, then I would now have to seek to that line again just to get the ID; storing the ID of every line that is searched sounds like a way around that. Anything to help me out, even if it saves 1ms per search, will help, so all input is appreciated. Thankyou! Usage scenario 1: I have a list of objects in file A, who in the old-style system have an id number which is not in file A. It is, however, POSSIBLY in another csv-style file (file B) or possibly still in a .txt report (file C) which each also contain a bunch of other information which is not useful here, and so file B needs to be searched through for the object's full name (1 token since it would reside within the second column of any given line), and then the first column should be the ID number. If that doesn't work, we then have to split the search token by whitespace into separate tokens before doing a search of file C for those tokens as well. Generalised code: String field; for (/* each record in file A */) { /* construct the rest of this object from file A info */ // now to find the ID, if we can List<String> objectName = new ArrayList<String>(1); objectName.add(Pattern.quote(thisObject.fullName)); field = lookup(objectSearchToken, objectName); // search file B if(field == null) // not found in file B { lookupReset(false); // initialise scanner to check file C objectName.clear(); // not using the full name String[] tokens = thisObject.fullName.split(id.delimiter().pattern()); for(String s : tokens) objectName.add(Pattern.quote(s)); field = lookup(objectSearchToken, objectName); // search file C lookupReset(true); // back to file B } else { /* found it, file B specific processing here */ } if(field != null) // found it in B or C thisObject.ID = field; } The objectName tokens are all uppercase words with possible hyphens or apostrophes in them, separated by spaces. Much like a person's name. As per a comment, I will pre-compile the regex for my objectSearchToken, which is just [\r\n]+. What's ending up happening in file C is, every single line is being checked, even the 95% of lines which don't contain an ID number and object name at the start. Would it be quicker to use ^[\r\n]+.*(objectname) instead of two separate regexes? It may reduce the number of _match executions. The more general case of that would be, concatenate all tokensBefore with all tokensAfter, and put a .* in the middle. It would need to be matching backwards through the file though, otherwise it would match the correct line but with a huge .* block in the middle with lots of lines. The above situation could be resolved if I could get java.util.Scanner to return the token previous to the current one after a call to findWithinHorizon. I have another usage scenario. Will put it up asap.

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WPF Button Image only showing in last control

- by Ryan

Hello All! I am fairly new to WPF and am probably missing something simple here. If I have 3 controls, only the last control will show the OriginalImage that I specify. Any help would be most appreciated. Thanks Ryan Main Window <Grid> <Grid.RowDefinitions> <RowDefinition Height="200*"/> <RowDefinition Height="60" /> </Grid.RowDefinitions> <Grid.ColumnDefinitions> <ColumnDefinition Width="85" /> <ColumnDefinition Width="85" /> <ColumnDefinition Width="85" /> <ColumnDefinition Width="85" /> <ColumnDefinition Width="300" /> </Grid.ColumnDefinitions> <Grid Grid.Row="1"> <but:ListButton OriginalImage="/CustomItemsPanel;component/ListBox/Images/add.png" DisableImage="/CustomItemsPanel;component/ListBox/Images/addunselect.png" /> </Grid > <Grid Grid.Row="1" Grid.Column="1" > <but:ListButton OriginalImage="/CustomItemsPanel;component/ListBox/Images/add.png" DisableImage="/CustomItemsPanel;component/ListBox/Images/addunselect.png" /> </Grid > <Grid Grid.Row="1" Grid.Column="2" > <but:ListButton OriginalImage="/CustomItemsPanel;component/ListBox/Images/add.png" DisableImage="/CustomItemsPanel;component/ListBox/Images/addunselect.png" /> </Grid> </Grid> Control XAML <ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="clr-namespace:CustomItemsPanel.ListButton"> <LinearGradientBrush x:Key="ButtonBackground" EndPoint="0.5,1" StartPoint="0.5,0"> <LinearGradientBrush.GradientStops> <GradientStop Color="#FF0E3D70"/> <GradientStop Color="#FF001832" Offset="1"/> </LinearGradientBrush.GradientStops> </LinearGradientBrush> <LinearGradientBrush x:Key="ButtonBackgroundMouseOver" EndPoint="0.5,1" StartPoint="0.5,0"> <LinearGradientBrush.GradientStops> <GradientStop Color="#FF1E62A1" /> <GradientStop Color="#FF0A3C6D" Offset="1"/> </LinearGradientBrush.GradientStops> </LinearGradientBrush> <LinearGradientBrush x:Key="ButtonBackgroundSelected" EndPoint="0.5,1" StartPoint="0.5,0"> <LinearGradientBrush.GradientStops> <GradientStop Color="Red" /> <GradientStop Color="#FF0A2A4C" Offset="1"/> </LinearGradientBrush.GradientStops> </LinearGradientBrush> <Style x:Key="Toggle" TargetType="{x:Type Button}"> <Setter Property="Content"> <Setter.Value> <Image> <Image.Style> <Style TargetType="{x:Type Image}"> <Setter Property="Source" Value="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type local:ListButton}}, Path=OriginalImage}"/> <Style.Triggers> <Trigger Property="IsEnabled" Value="False"> <Setter Property="Source" Value="{Binding Path=DisableImage, RelativeSource={RelativeSource TemplatedParent}}"/> </Trigger> </Style.Triggers> </Style> </Image.Style> </Image> </Setter.Value> </Setter> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type Button}"> <Grid Cursor="Hand"> <Border Name="back" Margin="0,1,0,0" Background="{StaticResource ButtonBackground}"> <ContentPresenter VerticalAlignment="Center" HorizontalAlignment="Center" x:Name="content" /> </Border> <Border BorderThickness="1" BorderBrush="#FF004F92"> <Border BorderThickness="0,0,1,0" BorderBrush="#FF101D29" /> </Border> </Grid> <ControlTemplate.Triggers> <Trigger Property="IsMouseOver" Value="True" > <Setter TargetName="back" Property="Background" Value="{StaticResource ButtonBackgroundMouseOver}"/> </Trigger> </ControlTemplate.Triggers> </ControlTemplate> </Setter.Value> </Setter> </Style> <Style TargetType="{x:Type local:ListButton}"> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type local:ListButton}"> <Button Style="{StaticResource Toggle}" /> </ControlTemplate> </Setter.Value> </Setter> </Style> </ResourceDictionary> Control Code Behind public class ListButton : Control { public static readonly DependencyProperty MouseOverImageProperty; public static readonly DependencyProperty OriginalImageProperty; public static readonly DependencyProperty DisableImageProperty; static ListButton() { DefaultStyleKeyProperty.OverrideMetadata(typeof(ListButton), new FrameworkPropertyMetadata(typeof(ListButton))); MouseOverImageProperty = DependencyProperty.Register("MouseOverImage", typeof(ImageSource), typeof(ListButton), new UIPropertyMetadata(null)); OriginalImageProperty = DependencyProperty.Register("OriginalImage", typeof(ImageSource), typeof(ListButton), new UIPropertyMetadata(null)); DisableImageProperty = DependencyProperty.Register("DisableImage", typeof(ImageSource), typeof(ListButton), new UIPropertyMetadata(null)); } public ImageSource MouseOverImage { get { return (ImageSource)GetValue(MouseOverImageProperty); } set { SetValue(MouseOverImageProperty, value); } } public ImageSource OriginalImage { get { return (ImageSource)GetValue(OriginalImageProperty); } set { SetValue(OriginalImageProperty, value); } } public ImageSource DisableImage { get { return (ImageSource)GetValue(DisableImageProperty); } set { SetValue(DisableImageProperty, value); } } }

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Edit Contact code worked in 1.6 but doesn't work on Droid 2.1?

- by user225405

Hi All, I had some fairly simple code in my app to invoke Edit Contact activity on a known good contact index that worked in Android 1.6 but is broken for me now in Android 2.1 on the Droid. I built a sample activity/app 'EdCon' to show this: package com.jbh; import android.app.Activity; import android.content.Intent; import android.net.Uri; import android.os.Bundle; public class EdCon extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); // Build an intent to edit a known good contact index Intent i; i = new Intent(Intent.ACTION_EDIT); i.setData(Uri.parse("content://contacts/people/10")); startActivity(i); } } When I run this on my G1 running 1.6 it works as expected i.e. brings up the Edit Contact screen for the known index and then I can hit BACK to return to "Hello World, EdCon". When I run this on the Droid under 2.1 I get the following: 05-07 15:35:57.787: INFO/ActivityManager(1013): Starting activity: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10000000 cmp=com.jbh/.EdCon } 05-07 15:35:57.826: DEBUG/AndroidRuntime(13780): Shutting down VM 05-07 15:35:57.826: DEBUG/dalvikvm(13780): DestroyJavaVM waiting for non-daemon threads to exit 05-07 15:35:57.928: DEBUG/dalvikvm(13780): DestroyJavaVM shutting VM down 05-07 15:35:57.928: DEBUG/dalvikvm(13780): HeapWorker thread shutting down 05-07 15:35:57.928: DEBUG/dalvikvm(13780): HeapWorker thread has shut down 05-07 15:35:57.928: DEBUG/jdwp(13780): JDWP shutting down net... 05-07 15:35:57.928: DEBUG/jdwp(13780): Got wake-up signal, bailing out of select 05-07 15:35:57.928: INFO/dalvikvm(13780): Debugger has detached; object registry had 1 entries 05-07 15:35:57.928: DEBUG/dalvikvm(13780): VM cleaning up 05-07 15:35:57.935: INFO/ActivityManager(1013): Start proc com.jbh for activity com.jbh/.EdCon: pid=13802 uid=10052 gids={1015} 05-07 15:35:57.967: ERROR/AndroidRuntime(13780): ERROR: thread attach failed 05-07 15:35:58.053: INFO/ActivityThread(13792): Publishing provider com.android.vending.SuggestionsProvider: com.android.vending.SuggestionsProvider 05-07 15:35:58.154: INFO/dalvikvm(13802): Debugger thread not active, ignoring DDM send (t=0x41504e4d l=38) 05-07 15:35:58.209: DEBUG/dalvikvm(13780): LinearAlloc 0x0 used 639500 of 5242880 (12%) 05-07 15:35:58.365: INFO/dalvikvm(13802): Debugger thread not active, ignoring DDM send (t=0x41504e4d l=18) 05-07 15:35:58.639: INFO/ActivityManager(1013): Starting activity: Intent { act=android.intent.action.EDIT dat=content://contacts/people/10 cmp=com.android.contacts/.ui.EditContactActivity } 05-07 15:35:58.975: DEBUG/dalvikvm(13137): GC freed 2902 objects / 166768 bytes in 61ms 05-07 15:35:59.100: DEBUG/vending(13792): com.android.vending.LocalDbSyncService.run(): Syncing local DB with package manager... 05-07 15:35:59.100: DEBUG/vending(13792): com.android.vending.LocalDbSyncService.syncLocalDbWithPackageManager(): No INSTALLING or UNINSTALLING assets. 05-07 15:35:59.115: INFO/ActivityManager(1013): Displayed activity com.android.contacts/.ui.EditContactActivity: 387 ms (total 1296 ms) 05-07 15:35:59.185: DEBUG/Sources(13137): Creating external source for type=com.facebook.auth.login, packageName=com.facebook.katana 05-07 15:35:59.225: DEBUG/vending(13792): com.android.vending.LocalDbSyncService.run(): Syncing done. 05-07 15:35:59.232: WARN/dalvikvm(13137): threadid=27: thread exiting with uncaught exception (group=0x4001b180) 05-07 15:35:59.232: ERROR/AndroidRuntime(13137): Uncaught handler: thread AsyncTask #1 exiting due to uncaught exception 05-07 15:35:59.295: ERROR/AndroidRuntime(13137): java.lang.RuntimeException: An error occured while executing doInBackground() 05-07 15:35:59.295: ERROR/AndroidRuntime(13137): at android.os.AsyncTask$3.done(AsyncTask.java:200) 05-07 15:35:59.295: ERROR/AndroidRuntime(13137): at java.util.concurrent.FutureTask$Sync.innerSetException(FutureTask.java:273) 05-07 15:35:59.295: ERROR/AndroidRuntime(13137): at java.util.concurrent.FutureTask.setException(FutureTask.java:124) 05-07 15:35:59.295: ERROR/AndroidRuntime(13137): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:307) 05-07 15:35:59.295: ERROR/AndroidRuntime(13137): at java.util.concurrent.FutureTask.run(FutureTask.java:137) 05-07 15:35:59.295: ERROR/AndroidRuntime(13137): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1068) 05-07 15:35:59.295: ERROR/AndroidRuntime(13137): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:561) 05-07 15:35:59.295: ERROR/AndroidRuntime(13137): at java.lang.Thread.run(Thread.java:1096) 05-07 15:35:59.295: ERROR/AndroidRuntime(13137): Caused by: android.database.sqlite.SQLiteException: no such column: raw_contact_id: , while compiling: SELECT account_name, account_type, sourceid, version, dirty, data_id, res_package, mimetype, data1, data2, data3, data4, data5, data6, data7, data8, data9, data10, data11, data12, data13, data14, data15, data_sync1, data_sync2, data_sync3, data_sync4, _id, is_primary, is_super_primary, data_version, group_sourceid, sync1, sync2, sync3, sync4, deleted, contact_id, starred, is_restricted FROM contact_entities_view WHERE (1) AND (raw_contact_id=10) 05-07 15:35:59.295: ERROR/AndroidRuntime(13137): at android.database.sqlite.SQLiteProgram.native_compile(Native Method) 05-07 15:35:59.295: ERROR/AndroidRuntime(13137): at android.database.sqlite.SQLiteProgram.compile(SQLiteProgram.java:110) 05-07 15:35:59.295: ERROR/AndroidRuntime(13137): at android.database.sqlite.SQLiteProgram.(SQLiteProgram.java:59) 05-07 15:35:59.295: ERROR/AndroidRuntime(13137): at android.database.sqlite.SQLiteQuery.(SQLiteQuery.java:49) 05-07 15:35:59.295: ERROR/AndroidRuntime(13137): at android.database.sqlite.SQLiteDirectCursorDriver.query(SQLiteDirectCursorDriver.java:49) 05-07 15:35:59.295: ERROR/AndroidRuntime(13137): at android.database.sqlite.SQLiteDatabase.rawQueryWithFactory(SQLiteDatabase.java:1221) 05-07 15:35:59.295: ERROR/AndroidRuntime(13137): at android.database.sqlite.SQLiteQueryBuilder.query(SQLiteQueryBuilder.java:316) 05-07 15:35:59.295: ERROR/AndroidRuntime(13137): at com.android.providers.contacts.ContactsProvider2.query(ContactsProvider2.java:3850) 05-07 15:35:59.295: ERROR/AndroidRuntime(13137): at com.android.providers.contacts.ContactsProvider2.query(ContactsProvider2.java:3840) 05-07 15:35:59.295: ERROR/AndroidRuntime(13137): at com.android.providers.contacts.ContactsProvider2$RawContactsEntityIterator.(ContactsProvider2.java:4498) 05-07 15:35:59.295: ERROR/AndroidRuntime(13137): at com.android.providers.contacts.ContactsProvider2.queryEntities(ContactsProvider2.java:4751) 05-07 15:35:59.295: ERROR/AndroidRuntime(13137): at android.content.ContentProvider$Transport.queryEntities(ContentProvider.java:140) 05-07 15:35:59.295: ERROR/AndroidRuntime(13137): at android.content.ContentProviderClient.queryEntities(ContentProviderClient.java:98) 05-07 15:35:59.295: ERROR/AndroidRuntime(13137): at android.content.ContentResolver.queryEntities(ContentResolver.java:296) 05-07 15:35:59.295: ERROR/AndroidRuntime(13137): at com.android.contacts.model.EntitySet.fromQuery(EntitySet.java:72) 05-07 15:35:59.295: ERROR/AndroidRuntime(13137): at com.android.contacts.ui.EditContactActivity$QueryEntitiesTask.doInBackground(EditContactActivity.java:191) 05-07 15:35:59.295: ERROR/AndroidRuntime(13137): at com.android.contacts.ui.EditContactActivity$QueryEntitiesTask.doInBackground(EditContactActivity.java:154) 05-07 15:35:59.295: ERROR/AndroidRuntime(13137): at com.android.contacts.util.WeakAsyncTask.doInBackground(WeakAsyncTask.java:45) 05-07 15:35:59.295: ERROR/AndroidRuntime(13137): at android.os.AsyncTask$2.call(AsyncTask.java:185) 05-07 15:35:59.295: ERROR/AndroidRuntime(13137): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305) 05-07 15:35:59.295: ERROR/AndroidRuntime(13137): ... 4 more 05-07 15:35:59.303: INFO/Process(1013): Sending signal. PID: 13137 SIG: 3 05-07 15:35:59.303: INFO/dalvikvm(13137): threadid=7: reacting to signal 3 05-07 15:35:59.303: ERROR/dalvikvm(13137): Unable to open stack trace file '/data/anr/traces.txt': Permission denied 05-07 15:35:59.506: INFO/DumpStateReceiver(1013): Added state dump to 1 crashes 05-07 15:36:07.053: DEBUG/dalvikvm(12901): GC freed 389 objects / 25056 bytes in 145ms 05-07 15:36:17.287: DEBUG/dalvikvm(11649): GC freed 154 objects / 6816 bytes in 136ms 05-07 15:36:22.365: DEBUG/dalvikvm(13574): GC freed 348 objects / 67848 bytes in 112ms 05-07 15:36:27.451: DEBUG/dalvikvm(11836): GC freed 267 objects / 17432 bytes in 65ms 05-07 15:36:32.553: DEBUG/dalvikvm(12757): GC freed 1888 objects / 92440 bytes in 67ms 05-07 15:36:38.803: INFO/power(1013): * set_screen_state 0 05-07 15:36:38.813: DEBUG/SurfaceFlinger(1013): About to give-up screen, flinger = 0x114c30 05-07 15:36:38.826: DEBUG/Sensors(1013): using accelerometer (name=accelerometer) 05-07 15:36:38.834: DEBUG/PhoneWindow(13137): couldn't save which view has focus because the focused view android.widget.ScrollView@44883558 has no id. 05-07 15:36:38.865: DEBUG/WifiService(1013): ACTION_SCREEN_OFF 05-07 15:36:38.889: DEBUG/WifiService(1013): setting ACTION_DEVICE_IDLE timer for 900000ms 05-07 15:36:44.107: DEBUG/dalvikvm(1013): GC freed 7351 objects / 521440 bytes in 130ms 05-07 15:36:49.373: DEBUG/dalvikvm(13553): GC freed 321 objects / 12056 bytes in 102ms The no such column: raw_contact_id: looks like the issue but I'm not sure how or why that would happen or what it means. Any help appreciated! [email protected]

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Floats will not align, stay staggered, can't find a solution?

- by Sarah Proper

What I am trying to do is build a multi column layout. The main two sections are divided 2/3 to 1/3 and inside the 2/3 column is divided 2/3 1/3 as well. My problem is that my floats will not align nicely with each other, choosing instead to stagger like stairs. I have tried declaring the widths smaller, floating them individually, including in the float sections display:block,inline, or inline-block and nothing seems to be working. I am getting really frustrated and would appreciate any help! Thanks! <div class="wrapper"> <div class="width50" style="float:left;"> <h1>Our Mission:</h1> <p> Bacon ipsum dolor sit amet swine spare ribs pork meatloaf pancetta filet mignon. Rump frankfurter pork belly prosciutto beef boudin andouille pig pork chop meatball ham drumstick filet mignon. Strip steak flank shank pig, tongue tri-tip jowl leberkas sirloin brisket t-bone. Ground round spare ribs salami capicola filet mignon. Capicola turkey t-bone corned beef sausage ham hock. Corned beef capicola leberkas pork chop, swine pastrami drumstick. Frankfurter fatback bacon jowl short loin, jerky pancetta bresaola corned beef shoulder drumstick ball tip tri-tip.</p> <div class="width50 float-left"> <img src="@Url.StaticContent(Links.Content.images.map_homepage_png)" alt="Map" /> </div> <div class="width33 float-right"> <img src="@Url.StaticContent(Links.Content.images.address_line_text_png)" alt="addressline" /> <br /> <h3>address</h3> <b>405 Empire Boulevard<br /> Rochester, NY 14609 </b> </div> </div> <div class="width33" style="float:right;"> <h1>Events</h1> <ul class="events"> <li> <h2>Fall Volunteer Festival</h2> <p> <b>october 6<br /> 10 am to 3pm </b> </p> <p> come to our town location for some fun activities for family and friends! </p> </li> <li> <h2>Fall Volunteer Festival</h2> <p> <b>october 6<br /> 10 am to 3pm </b> </p> <p> come to our town location for some fun activities for family and friends! </p> </li> <li> <h2>Fall Volunteer Festival</h2> <p> <b>october 6<br /> 10 am to 3pm </b> </p> <p> come to our town location for some fun activities for family and friends! </p> </li> </ul> </div> </div> </div> and the css: .clearfix:before, .clearfix:after, .grid-block:before, .grid-block:after, .deepest:before, .deepest:after { content: ""; display: table; } .clearfix:after, .grid-block:after, .deepest:after { clear: both; } .grid-box { float: left; } /* Grid Units */ .width16 { width: 16.666%; } .width20 { width: 20%; } .width25 { width: 25%; } .width33 { width: 39.333%; } .width40 { width: 40%; } .width50 { width: 50%; } .width60 { width: 60%; } .width66 { width: 66.666%; } .width75 { width: 75%; } .width80 { width: 80%; } .width100 { width: 100%; } .width16, .width20, .width25, .width33, .width40, .width50, .width60, .width66, .width75, .width80, .width100 { -moz-box-sizing: border-box; -webkit-box-sizing: border-box; box-sizing: border-box; padding: 5px 10px 5px 10px; } /* Create new Block Formatting Contexts */ .bfc-o { overflow: hidden; } .bfc-f { -moz-box-sizing: border-box; -webkit-box-sizing: border-box; box-sizing: border-box; width: 100%; float: left; } /* Align Boxes */ .float-left { float: left; } .float-right { float: right; } /* Grid Gutter */ .grid-gutter.grid-block { margin: 0 -15px; } .grid-gutter > .grid-box > * { margin: 0 15px; } .grid-gutter > .grid-box > * > :first-child { margin-top: 0; } .grid-gutter > .grid-box > * > :last-child { margin-bottom: 0; } /* Layout Defaults --------------------------------------------------------------------------------------- -------------*/ /* Center Page */ .wrapper { -moz-box-sizing: border-box; -webkit-box-sizing: border-box; box-sizing: border-box; margin: auto; } /* Header */ #header { position: relative; padding-top: 10px; } #toolbar .float-left .module, #toolbar .float-left > time { margin: 0 15px 0 0; float: left; } #toolbar .float-right .module { margin: 0 0 0 15px; float: right; } #headerbar .module { max-width: 300px; margin-right: 0; float: right; } #logo, #logo > img, #menu { float: left; } #search { float: right; } #banner { position: absolute; top: 0; right: -200px; } /* Footer */ #footer { position: relative; text-align: center; } /* Absolute */ #absolute { position: absolute; z-index: 15; width: 100%; }

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