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• SQL: Get count of rows returned from a left join

  - by Rogue Coder

  I have two tables, one called calendars and one called events. There can be multiple calendars, and multiple events in a calendar. I want to select every calendar, also getting the number of events in the calendar. Right now I have : SELECT C.*, COUNT(*) AS events FROM `calendars` AS C LEFT JOIN `events` E ON C.ID=E.calendar GROUP BY C.ID But that doesn't work. Items with no events still return 1. Any ideas?

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• jquery expanding menu+show/hide+multiple instances

  - by mark

  Hi, I have 2 scripts working ok separately but can't get them working together - What I'm after is expanding menus where if the items exceed 10 a 'more' link appears that expands the list, which can also then be hidden. http://www.brianfitzer.ie/test2/ expanding menu is file test12.html toggle+limit: toggle is file test13.html (I have these working separately) And then I need this to be able to be applied in multiple instances as I'll have multiple categories. Any code help greatly appreciated! (i'm a jquery newbie so if you have full code that would be xtra handy)

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• Java: iterating through list of lists?

  - by HH

  The question but in C#. So does Java have C#'s command? I need it for Matches-SearchTerm-Files-relationship. foreach(var i in BunchOfItems.SelectMany(k => k.Items)) {}

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• Issue with Column footer and Summary bands on Jasper reports

  - by lakshmi

  I am creating invoices with Jasper reports. I have a detail section that has the list of all items followed by a column footer which has Totals, Tax etc., and then the return policy in the Summary section. I want to always ensure that the detail is followed by column footer followed by summary bands. How can we ensure this? I found that sometimes the Summary comes before the Column footer. Can someone throw some light on this? Thanks, Lakshmi

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• Does Table.InsertOnSubmit create a copy of the original table?

  - by Bryan

  Using InsertOnSubmit seems to have some memory overhead. I have a System.Data.Linq.Table<User> table. When I do table.InsertOnSubmit(user) and then int count = table.Count(), the memory usage of my application increases by roughly the size of the User table, but the count is the number of items before user was inserted. So I'm guess an enumeration after InsertOnSubmit will create a copy of the table. Is that true?

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• LINQ: How to skip one then take the rest of a sequence

  - by Marcel

  Hi All, i would like to iterate over the items of a List<T>, except the first, preserving the order. Is there an elegant way to do it with LINQ using a statement like: foreach (var item in list.Skip(1).TakeTheRest()) {.... I played around with TakeWhile , but was not successful. Probably there is also another, simple way of doing it?

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• how to sort a Collection<T> ???

  - by Mercer

  Hi All I have a generic Collection and am trying to work out how I can sort the items contained within it. Ive tried a few things but I cant get any of them working.

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• Simple server status page hosted externally available for users

  - by Chris

  I am looking for any kind of script - can be asp or php or any other web language - that gives me the ability to log outages and the current state of the network for our organisation. This would be similar to any major Telco's "Network Status" page, but I just want to tell the user's out there if the systems are up and running and have a history of recent outages. This would be for our remote user's so they could go to a webpage (externally hosted from our main site) and see that we are currently having problems with our network. What are other people out there using?

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• NSMutableArray does not print well with several lines of string

  - by ahmet732

  while(sqlite3_step(compiledStatement) == SQLITE_ROW) { NSString *araci2 = [NSString stringWithUTF8String:(char *)sqlite3_column_text(compiledStatement, 2)]; [dbarray addObject:araci2]; NSLog(@"DB ITEMS: %@",dbarray); } First of all, I try to get a description longer than a line from db. While part of the value appears meaningful, some of the characters of those values are absurd like "00fu". How can I print them in proper fashion ?

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• Using JSP to Tail a file

  - by nick

  Is there a way to use JSP to create a file tail like Linux's "tail -f" and cache the results? That is, can I read the last X items, cache, and then read again if I get a request that exceeds some timeout?

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• GridView - set selected index by searching through data keys

  - by Cristian Boariu

  Hi, I have a GridView which has DataKey[0] as productId. If i have for instance productId = 54, is there any way to search through all GridView item and set as selected the one who has DataKEy[0] = 54? In drop down list i have : ddlProducts.Items.FindByValue(lblProduct.Text.ToString())).Selected = true Is anything similar for GridView? Thanks in advance.

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• How do I change the visual style of a listitem based on its bound value?

  - by Rodd

  I have a listbox (here's the xaml): <ListBox MinWidth="300" ItemsSource="{Binding Relationships, Mode=OneWay}" SelectedItem="{Binding SelectedRelationship, Mode=TwoWay}" SelectionMode="Single" HorizontalAlignment="Left" > <ListBox.ItemTemplate> <DataTemplate> <Grid> <Grid.ColumnDefinitions> <ColumnDefinition Width="Auto"/> <ColumnDefinition/> </Grid.ColumnDefinitions> <Grid.RowDefinitions> <RowDefinition/> <RowDefinition/> <RowDefinition/> <RowDefinition/> <RowDefinition/> <RowDefinition/> </Grid.RowDefinitions> <CheckBox IsChecked = "{Binding IsPrimary}" IsHitTestVisible="False" /> <StackPanel Orientation="Horizontal" Grid.Column="1"> <TextBlock Text="{Binding RelationshipType}" FontWeight="Bold" Margin="0,0,5,0" /> <TextBlock Text="{Binding Status}" FontStyle="Italic" /> </StackPanel> <TextBlock Text="{Binding UnitName}" Grid.Row="1" Grid.Column="1" /> <TextBlock Text="{Binding StartDate, Converter={StaticResource DateConverter}}" Grid.Row="2" Grid.Column="1"/> <TextBlock Text="{Binding RetireDate}" Grid.Row="3" Grid.Column="1" /> <TextBlock Text="{Binding EndDate}" Grid.Row="4" Grid.Column="1" /> <TextBlock Text="{Binding ReasonForLeaving}" Grid.Row="5" Grid.Column="1" /> </Grid> </DataTemplate> </ListBox.ItemTemplate> </ListBox> What I want to do is have each item in the listbox have one of 3 backgrounds (green if the value of IsPrimary = true, Orange if the EndDate value is empty and grey if the EndDate value is not empty. Is there a way to template the listbox items so that they evaluate bound items to determine a view state or to have each listbox item bind to a value that I can set for each item in my viewmodel? Thanks for your help.

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• Remove buttons from a custom menu in Visual Studio 2008

  - by Shaihi

  I recently installed Platform builder 7 by Microsoft. It is a plugin for VS2008. The plugin adds the following menu: I want to remove several items from this menu and I would also like to add some button from it to a toolbar. The problem is that when I do customize I only get "advanced command placeholder" shortcut for the whole bunch. Like this: How do I access the internals of these commands menu?

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• WPF c# Context Menu Text Alignment

  - by Grant

  Hi, i am building a context menu for a WPF c# application and just for simplicity's sake, if i have text and then i add an image, the text is always aligned at the top of the menu items cell and i cant figure out how to align it to the center. i have tried the veticalalignment property and veticalcontentalignment property but they dont help.. any ideas?

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• highlite text parts with jquery, best practice

  - by helle

  Hey guys, i have a list of items containig names. then i have a eventlistener, which ckecks for keypress event. if the user types i.g. an A all names starting with an A should be viewed with the A bold. so all starting As should be bold. what is the best way using jquery to highlite only a part of a string? thanks for your help

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• Pretty printing boost::unordered_map on gdb

  - by scooterman

  Hi all, recently I've started to use the excellent boost::unordered_map on my system, but got one drawback: I couldn't figure how to inspect its contents. Printing it on gdb gives me a table_ and a buckets_, but haven't found where are the items. Anyone has a clue about this?

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• Why are my log in times taking so long in Linux?

  - by Jamie

  In recent weeks, login times on my Ubuntu server have started timing out; both through SSH and the local command line console. Examination of the /var/auth.log yields nothing interesting. How can I diagnose long log in times on my Ubuntu server? I should mention, also, that no updates have been performed since the problem has started, and that the /, /boot/ and /usr/ file systems are mounted as readonly. [Edit] This is a stand alone machine, so it doesn't authenticate with Active Directory, LDAP etc. Also, the login prompt is responsive, as is the password prompt. Upon typing the password then CR, I'll timeout. After four a five tries, I will be able to login, although I'm worried this will start taking longer.

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• Why did File::Find finish short of completely traversing a large directory?

  - by Stan

  A directory exists with a total of 2,153,425 items (according to Windows folder Properties). It contains .jpg and .gif image files located within a few subdirectories. The task was to move the images into a different location while querying each file's name to retrieve some relevant info and store it elsewhere. The script that used File::Find finished at 20462 files. Out of curiosity I wrote a tiny recursive function to count the items which returned a count of 1,734,802. I suppose the difference can be accounted for by the fact that it didn't count folders, only files that passed the -f test. The problem itself can be solved differently by querying for file names first instead of traversing the directory. I'm just wondering what could've caused File::Find to finish at a small fraction of all files. The data is stored on an NTFS file system. Here is the meat of the script; I don't think including DBI stuff would be relevant since I reran the script with nothing but a counter in process_img() which returned the same number. find(\&process_img, $path_from); sub process_img { eval { return if ($_ eq "." or $_ eq ".."); ## Omitted querying and composing new paths for brevity. make_path("$path_to\\img\\$dir_area\\$dir_address\\$type"); copy($File::Find::name, "$path_to\\img\\$dir_area\\$dir_address\\$type\\$new_name"); }; if ($@) { print STDERR "eval barks: $@\n"; return } } And here is another method I used to count files: count_images($path_from); sub count_images { my $path = shift; opendir my $images, $path or die "died opening $path"; while (my $item = readdir $images) { next if $item eq '.' or $item eq '..'; $img_counter++ && next if -f "$path/$item"; count_images("$path/$item") if -d "$path/$item"; } closedir $images or die "died closing $path"; } print $img_counter;

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• "Tab" disappear when adding new ListViewItem to ListView

  - by user340169

  Hi i am trying to add string to Listview the string contain Tab (or \t) character. when i do this the Tab disappear. code: string text = "test Tab";// The space between the words is "Tab" of course this.listView1.Items.Add(new ListViewItem(text)); why is this happens?

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• Problem with Windows Boot Manager after using GParted

  - by Cenoc

  I Get the follow: Windows failed to start. A recent hardware or software change might be the cause. To fix the problem: Insert your windows installation disc and restart your computer. Choose your language settings, and then click "Next." Click "Repair your computer." If you do not have this disc, Contact your system administrator or computer manufacturer for assistance. Status: 0XC0000225 Info: The boot selection failed because a required device is inaccessible. After I tried to expand the Windows partition. I dont know where I put the Windows 7 CD and I was wondering if anyone knew of any way of fixing this problem? I'm guessing I deleted something I shouldnt have deleted....... I actually wanted to get some more space at the expense of the recovery drive. Thanks in advance!

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• Recently reloaded computer, now have trailing effect when windows overlap

  - by Tony

  I recently did a clean install of my home machine and I am having a weird graphical error where if I move one window across the top of another it leaves a trail: I have the most recent NVIDIA drivers installed and nothing new is installed on my machine than before the reload (and I never had this issue before). I have two monitors and it happens on both so I'm sure it isn't a hardware issue (the card and my main monitor are also both less than 6 months old) I've also noticed a ripple when scrolling down on web pages which I believe is related. Any ideas what might be causing this and solutions to fix it?

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• Lucene based database search engine

  - by Abhay

  Hi All, I am planing to add search feature in my web application. Now the items that will be searched are strored in a Relational database. In order to achieve a full text search engine I have following doubts : For database based search engine should I use just lucene or some other utility based on Luncene like Solr, luSql, Compass etc. In case of Solr, can it be embeded in to the web applcation rather than deploying it as a seaparate WAR. Thanks for your time. regards

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• RegEx to reverse order of list?

  - by quantomcat

  Is there a singular regular expression that can be used in, say, a text editor's search/replace dialog to reverse the order of the items in a list? For instance, take this list: First item Second item Third item Select it in a text editor like EditPad, bring up the search and replace box, apply a regex (run as a loop or not) and turn it into: Third item Second item First item Can this be done?

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• Stop Windows 7 from installing critical updates

  - by Rico

  I have disabled Windows Update on Windows 7, but it still downloads and installs critical updates. As with Windows XP, these updates occasionally create problems. But in XP, once I disabled automatic updates, the OS did not override my settings and continue to download and install critical updates. After the most recent critical update to Windows 7, every time I boot up, the USB devices connected to a single port through 4-way hub don't install. I have to unplug the hub from the computer then plug it back in. Then the devices install. I can use System Recovery to solve the immediate problem, but I'd like to disable automatic updates entirely. Why does Windows 7 not respect my settings like Windows XP did?

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• accessing php javascript object in asp.net user control

  - by Khushi

  Hi, I have a website in php which is using 4 frames(top, left, middle and right). The middle frame contains the web user control coded in asp.net. Now, in the right frame( which is coded in php ) some javascript contains the id of the items selected in right frame. I need to get those ids to the middle frame on asp.net user control. How can i do this?

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