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  • Error loading contents from a XML file into a dropdownlist

    - by Chaitanya
    private void BindCountry() { XmlDocument doc = new XmlDocument(); doc.Load(Server.MapPath("countries.xml")); foreach (XmlNode node in doc.SelectNodes("//country")) { usrlocationddl.Items.Add(new ListItem(node.InnerText, node.Attributes["codes"].InnerText)); //ddlCountry.Items.Add(new ListItem(node.InnerText, node.Attributes["code"].InnerText)); } } The above code am using for loading countries List from an xml file into a dropdown list. But while doing so am encountering a Null Reference error. Object reference not set to an instance of an object. Where in the code should I be changing, so that I can escape the error.

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  • save selected row in UITableView after reloadData

    - by vinnitu
    I write custom jabber client in iphone. I use xmppframework as engine. And I have UITableViewController with NSMutableArray for repesent contact list. When i receive(or somebody change it contents) roster (aka contact list) i wanna change UITableView items (add/remove/modify). So if User work with listView at time when list updates by [items addObject:newItem]; [self.tableView reloadData]; user lost current selection item. So, my question is howto save (if possible, i mean if given selected item not removed) current select item after reloadData? Thx.

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  • What is a good pattern for binding a collection of objects coming from WCF, in Silverlight?

    - by Krishna
    Hi there, I've got a question about a Silverlight WCF Databinding pattern: There are many examples about how to bind data using {Binding} expressions in XAML, how to make async calls to a WCF service, set the DataContext property of a element in the UI, how to use ObservableCollections and INotifyPropertyChanged, INotifyCollectionChanged and so on. Background: I'm using the MVVM pattern, and have a Silverlight ItemsControl, whose ItemsSource is set to an ObservableCollection property on my ViewModel object. My view is of course the XAML which has the {Binding}. Say the model object is called 'Metric'. My ViewModel periodically makes calls to a WCF service that returns ObservableCollection. MetricInfo is the data transfer object (DTO). My question is two-fold: Is there any way to avoid copying each property of MetricInfo to the model class - Metric? When the WCF calls completes, is there any way to make sure I sync the items which are in both my local ObservableCollection and the result of the WCF call - without having to first clear out all the items in the local collection and then add all the ones from the WCF call result? thanks, Krishna

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  • Getting hierarchy data from a self-referencing table

    - by Emanuil
    Let's say you have the following table: items(item_id, item_parent) ... and it is a self-referencing table as item_parent refers to item_id. What SQL query would you use to SELECT all items in the table along with their depth where the depth of an item is the sum of all parents and grand parents of that item. If the following is the content of the table: item_id item_parent ----------- ----------- 1 0 2 0 3 2 4 2 5 3 ... the query should retrieve the following set of objects: {"item_id":1,"depth":0} {"item_id":2,"depth":0} {"item_id":3,"depth":1} {"item_id":4,"depth":1} {"item_id":5,"depth":2} P.S. I'm looking for a MySQL supported approach.

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  • .NET SortedDictionary But Sorted By Values

    - by Michael Covelli
    I need a data structure that acts like a SortedDictionary<int, double> but is sorted based on the values rather than the keys. I need it to take about 1-2 microseconds to add and remove items when we have about 3000 items in the dictionary. My first thought was simply to switch the keys and values in my code. This very nearly works. I can add and remove elements in about 1.2 microseconds in my testing by doing this. But the keys have to be unique in a SortedDictionary so that means that values in my inverse dictionary would have to be unique. And there are some cases where they may not be. Any ideas of something in the .NET libraries already that would work for me?

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  • How do I include 2 tables in LocalStorage?

    - by Noor
    I've got a table that you can edit, and I've got a simple code saving that list when you're done with editing it. (the tables have the contenteditable on) The problem I've stumbled upon is that if I double click on enter, the table gets divided into two separate tables with the same ID. This causes the code I'm using to set the localStorage to only store one of the tables (I assume the first).. I've thought of different solutions and I wonder if someone could point out the pro's and con's (if the solutions even works that is). Make a loop that checks the page after tables and stores them into an array of localStorage-items.. I'd have to dynamically create a localStorage item for each table. Take the whole div that the tables are in, and store that in the localStorage, when a user revisits the page, the page checks after the items in storage and displays the whole divs. Any suggestions you have that can beat this :).. (but no cache, it has to be with the localStorage!) Thanks

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  • Changing a Container while using Visitor

    - by Florian
    Hi everyone, I implemented the Visitor pattern in C++ using a STL-like iterator for storing the Visitor's current position in the container. Now I would like to change the container while I iterate over it, and I'm especially interested in deleting items from the container, even the one I'm currently visiting. Now obviously this will invalidate the Visitors internal iterator, because it was pointing to exactly this item. Currently, I store a list of all iterators in the container and update them, as soon as anything is added to or removed from the list. So in a way this is similar to the Observer pattern applied to the iterator (as Observer) and the list (as Observable). Alternatively I considered having the visitor() methods return some hint to the Visitor about what happend to the current item and how to proceed iterating, but that doesn't sound like such a good idea either, because the visit() implementation shouldn't really care about finding the next item. So, my question is: What's the best way to keep a visitor working, even when items are added to the container or removed from it. Regards, Florian

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  • In cakePHP, how to retrieve joined result from multiple tables

    - by Manish Sharma
    Hi, can anyone tell me, how to retrieve joined result from multiple tables in cakePHP ( using cakePHP mvc architecture). For example, I have three tables to join (tbl_topics, tbl_items, tbl_votes. Their relationship is defined as following: a topic can have many items and an item can have many votes. Now I want to retrieve a list of topics with the count of all votes on all items for each topic. The SQL query for this is written below: SELECT Topic.*, count(Vote.id) voteCount FROM tbl_topics AS Topic LEFT OUTER JOIN tbl_items AS Item ON (Topic.id = Item.topic_id) LEFT OUTER JOIN tbl_votes AS Vote ON (Item.id = Vote.item_id); My problem is I can do it easily using $this-><Model Name>->query function, but this requires sql code to be written in the controller which I don't want. I'm trying to find out any other way to do this (like find()).

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  • jQuery hide ul header when all entries are deleted...

    - by Scott
    I'm a noob with jQuery...and I hope I've explained this well enough; I have a <ul> header that appears when I've added an entry to a dynamically created list using $.post. Each entry added has a delete/edit button associated with it. Header is this: <ul class="header"> <li>Month</li> <li>Year</li> <li>Cottage</li> </ul> My dynamic list that is created: <ul class="addedItems"> <li>Month</li> <li>Year</li> <li>Cottage</li> <li><span class="edit">edit</span></li> <li><span class="del">delete</span></li> </ul> This all looks like this: Month Year Cottage <--this appears after I've added an entry -------------------------------- and I want it to stick around unless all items are deleted. Dec 1990 Fir edit/delete <--entries Jan 2000 Willow edit/delete My question is: Is there some kind of conditional that I can use with jQuery to hide the class="header" if all the items are deleted? I've read up on conditional statements like is and not with jq but I'm not really understanding how they work. All of the items in class="addedItems" is stored in data produced by JSON. This is the delete function: $(".del").live("click", function(){ var del = this; var thisVal = $(del).val(); $.post("delete.php", { dirID : thisVal }, function(data){ if(confirm("Are you sure you want to DELETE this entry?") == true) { if(data.success) { //hide the class="header" here somwhere?? $(del).parents(".addedItems").hide(); } else if(data.error) { // throw error if item does not delete } } }, "json"); return false; }); //end of .del function Here is the delete.php <?php if($_POST) { $data['delID'] = $_POST['dirID']; $query = "DELETE from //tablename WHERE dirID = '{$data['delID']}' LIMIT 1"; $result = $db->query($query); if($result) { $data['success'] = true; $data['message'] = "Entry was successfully removed."; } else { $data['error'] = true; $data['message'] = "Item could not be deleted."; } echo json_encode($data); } ?>

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  • TFS Integration with Rational ClearQuest and Requirement Manager

    - by Kangkan
    I am working on an integration approach for integrating Rationa (IBM Jazz) Requirement Manager (RM) and Clear Quest (CQ) with TFS. As the teams are moving from ClearCase to TFS, what we are looking at is still being able to manage the requirements in RM and manage testing using CQ. The flow will be something like: Requirements are planned and detailed in RM Create work items in TFS connected to the Requirements in RM Create design and code using VS2010 and managing the version control in TFS Creating test plans and test cases in CQ (connected to requirements in RM) Run test against builds in TFS Publish test results in CQ against builds in TFS Run reports in RM, CQ and TFS that links up the items across the platforms. I have started looking at TFS Integration platform. But shall like to have your guidance for an early resolution and better solution approach.

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  • Adding ComboBoxItem to a combobox inside a user control (XAML/WPF)

    - by byte
    I am currently learning to create custom controls in WPF. I successfully created a simple custom control using a Label and a Text Box. I was able to allow setting the Label text by DependencyProperty. Now I am creating a user control that has a ComboBox. I need to allow adding items to this ComboBox from outside the control. To achieve this, I tried exposing a DependencyProperty of type ItemsCollection and it will allows access to the ComboBox's Items property (the DP in my control sample is named 'CbItems'). But I get errors because Items property of Combobox is ReadOnly. Control XAML <UserControl x:Class="MyWpfApp.Controls.MyControl" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Height="Auto" Width="Auto"> <Grid> <Grid.ColumnDefinitions> <ColumnDefinition /> <ColumnDefinition /> </Grid.ColumnDefinitions> <Label Grid.Column="0" Content="{Binding FieldLabel}"></Label> <ComboBox Name="cmb" Grid.Column="1" Width="150"></ComboBox> </Grid> </UserControl> MainWindow XAML <Window x:Class="MyWpfApp.Window1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:ctl="clr-namespace:MyWpfApp.Controls" Title="Window1" Height="300" Width="300"> <Grid> <ctl:MyControl> <ctl:MyControl.CbItems> <ComboBoxItem>Hello</ComboBoxItem> <ComboBoxItem>World</ComboBoxItem> <ComboBoxItem>Hi</ComboBoxItem> </ctl:LobCombox.CbItems> </ctl:LobCombox> </Grid> </Window> I would like to know what the correct way is to achieve this functionality. I believe the answer to this might also help with other controls like GridView etc Many Thanks

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  • php curly braces groups

    - by David
    is there a function or regex or anything to group items by a { and } tag? so it should group items by the opening tag { and the closing tag }. but be careful, there are also groups inside parent groups like so: group { text1 group2 { text2 } } so basically think of it like php, you make an opening tag, you need to close it with a closing tag, curly braces in php's case. i just need it to like substr() each group into an associative array somehow, except I cant figure it out with the whole, "group inside a parent group".

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  • WPF: Problem with SelectedItem for ComboBox

    - by Anry
    XAML: <ComboBox Height="27" Margin="124,0,30,116" Name="cbProductDefaultVatRate" VerticalAlignment="Bottom" ItemsSource="{Binding}"> <ComboBox.ItemTemplate> <DataTemplate> <Label Height="26" Content="{Binding Path=Value}"/> </DataTemplate> </ComboBox.ItemTemplate> </ComboBox> Set Data for cbProductDefaultVatRate.Items (Type - VatRate): private void ShowAllVatRates() { cbProductDefaultVatRate.Items.Clear(); cbProductDefaultVatRate.ItemsSource = new VatRateRepository().GetAll(); } Similarly, I defined property: private Product SelectedProduct { get; set; } The Product contains VatRate: SelectedProduct.DefaultVatRate How to set SelectedItem equal SelectedProduct.DefaultVatRate? I tried: cbProductDefaultVatRate.SelectedItem = SelectedProduct.DefaultVatRate; But it does not work. Thank you for answers!

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  • geo-indexing: efficiently calculating proximity based on latitude/longitude

    - by AnC
    My simple web app (WSGI, Python) supports text queries to find items in the database. Now I'd like to extend this to allow for queries like "find all items within 1 mile of {lat,long}". Of course that's a complex job if efficiency is a concern, so I'm thinking of a dedicated external module that does indexing for geo-coordinates - sort of like Lucene would for text. I assume a generic component like this already exists, but haven't been able to find anything so far. Any help would be greatly appreciated.

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  • Need help in gridview displaying data

    - by sumit
    Hi all, I want to display all the data in gridview which i am inserting in runtime. For that i have written code but getting this error. "Both DataSource and DataSourceID are defined on 'GridView1'. Remove one definition." protected void Page_Load(object sender, EventArgs e) { if (!Page.IsPostBack) { BindData(); } } public void BindData() { string str = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString.ToString(); SqlConnection con = new SqlConnection(str); SqlDataAdapter da = new SqlDataAdapter("select * from Items where ItemId='" + TxtItemId.Text + "'", con); DataSet ds = new DataSet(); da.Fill(ds,"Items"); GridView1.DataSource = ds; GridView1.DataBind(); } Pls modify my code where is my mistake. Thanks, Sumit

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  • [WPF] SelectionChanged of a child ListBox

    - by quimbs
    Hi, I have a ListBox bound to an ObservableCollection with an ItemTemplate that contains another ListBox. First of all, I tried to get the last selected item of all the listboxes (either the parent and the inner ones) from my MainWindowViewModel this way: public object SelectedItem { get { return this.selectedItem; } set { this.selectedItem = value; base.NotifyPropertyChanged("SelectedItem"); } } So, for example, in the DataTemplate of the items of the parent ListBox I've got this: <ListBox ItemsSource="{Binding Tails}" SelectedItem="{Binding Path=DataContext.SelectedItem, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type Window}}}"/> The problem now, is that when I select an item from the parent ListBox and then an item from a child listbox, I get this: http://i40.tinypic.com/j7bvig.jpg As you can see, two items are selected at the same time. How can I solve that? Thanks in advance.

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  • Serializing classes in C#. nested XML

    - by Jebli
    Hi All, I have to generate XML in the below format <objects> <items> <item ="delete"> <searchfields> <searchfield name="itemname" value="itemValue" /> </searchfields> </item> </items> </objects> So I have generated the CS file using xsd.exe by converting the above XML to XSD. xsd.exe -c -l:c# -n:XmlSerializationDeleteObject DeleteObject.xsd The CS file that is generated contains 4 classes. My question is i have to build the XML in the above mentioned format using the class that is generated. I am able to serialize the class files one by one which retirns one tag at a time, but i am unable to build it in the way that i mentioned above. Please help Regardas, jebli

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  • Simple, non-blocking way to sleep?

    - by OverTheRainbow
    Hello I googled for this and read some threads here, but I haven't found a simple way to have a VB.Net application sleep for a little while and still keep the application responsive: Imports System.Net Imports System.IO Imports System.Text Imports System.Text.RegularExpressions Imports System.Threading.Thread [...] 'How to keep screen frop freezing? While True ListBox1.Items.Clear() ListBox1.Items.Add("blah") 'Not much difference ListBox1.Refresh() 'Wait 1mn Sleep(60000) End While Is there really no simple, non-blocking solution to have a VB.Net application wait for a few seconds? Thank you.

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  • itext - pdf to html

    - by Cristian Boariu
    Hi guys, I have spent about 20 hours of coding to produce invoices using iText in c#. Now, i want to use the same code to transform some of the tables to html. Do you know if i can do this? For instance i have this: PdfPTable table = new PdfPTable(3); table.DefaultCell.Border = 0; table.DefaultCell.Padding = 3; table.WidthPercentage = 100; int[] widths = { 100, 200, 100}; table.SetWidths(widths); List listOfCompanyData = (List)getCompanyData(); List listOfCumparatorDreaptaData = (List)getCumparatorDreaptaData(proformaInvoice.getCumparatorDreapta()); table.AddCell((Phrase)listOfCompanyData.Items[0]); table.AddCell(""); table.AddCell((Phrase)listOfCumparatorDreaptaData.Items[0]); and i want to transform this table into html... Is it possible?

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  • Eval ID on radiobutton in Datalist

    - by ravi
    my code gota datalist with radio button and iv made it single selectable onitemdatabound....now im trying to evaluate a hiddenfield on basis of selected radio button my code goes like this aspx code <asp:DataList ID="DataList1" runat="server" RepeatColumns = "4" CssClass="datalist1" RepeatLayout = "Table" OnItemDataBound="SOMENAMEItemBound" CellSpacing="20" onselectedindexchanged="DataList1_SelectedIndexChanged"> <ItemTemplate> <br /> <table cellpadding = "5px" cellspacing = "0" class="dlTable"> <tr> <td align="center"> <a href="<%#Eval("FilePath")%>" target="_blank"><asp:Image ID="Image1" runat="server" CssClass="imu" ImageUrl = '<%# Eval("FilePath")%>' Width = "100px" Height = "100px" style ="cursor:pointer" /> </td> </tr> <tr > <td align="center"> <asp:RadioButton ID="rdb" runat="server" OnCheckedChanged="rdb_click" AutoPostBack="True" /> <asp:HiddenField ID="HiddenField1" runat="server" Value = '<%#Eval("ID")%>' /> </td> </tr> </table> </ItemTemplate> </asp:DataList> code behind protected void SOMENAMEItemBound(object sender, DataListItemEventArgs e) { RadioButton rdb; rdb = (RadioButton)e.Item.FindControl("rdb"); if (rdb != null) rdb.Attributes.Add("onclick", "CheckOnes(this);"); } protected void rdb_click(object sender, EventArgs e) { for (int i = 0; i < DataList1.Items.Count; i++) { RadioButton rdb; rdb = (RadioButton)DataList1.Items[i].FindControl("rdb"); if (rdb != null) { if (rdb.Checked) { HiddenField hf = (HiddenField)DataList1.Items[i].FindControl("HiddenField1"); Response.Write(hf.Value); } } } } the javascript im using... function CheckOnes(spanChk){ var oItem = spanChk.children; var theBox= (spanChk.type=="radio") ? spanChk : spanChk.children.item[0]; xState=theBox.unchecked; elm=theBox.form.elements; for(i=0;i<elm.length;i++) if(elm[i].type=="radio" && elm[i].id!=theBox.id) { elm[i].checked=xState; } } iam getting an error like this Microsoft JScript runtime error: Sys.WebForms.PageRequestManagerParserErrorException: The message received from the server could not be parsed. Common causes for this error are when the response is modified by calls to Response.Write(), response filters, HttpModules, or server trace is enabled. Details: Error parsing near 'pload Demonstration|'. is there any other way to do this or can nyone plz help to get rid of this problem

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  • Regarding Multiple Tab-Class

    - by Christine
    Hi! I've problem regarding GUI with one Menu and one Order Class. I've created a variable to store how many items have been selected in the Menu Class. private int totalSelected; The var totalSelected is live updated. It can be changed anytime depending on actionPerformed() function.(Exp: totalSelected will add up all the selected items) In the Order Class, how can I access to the live update variable totalSelected in order to retrieve the live update value? When I invoke getTotalSelected() function inside the Menu Class, I will only obtain a 0 value. Thanks for your help ^^!

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  • Best jQuery/Prototype book for complex ajax?

    - by Burton Kent
    I've been working on a complex app with one main dashboard. I don't particularly like the design because it tries to do too much on one page. So the lead developer thought it would be a good idea to use ajax - because the page is so big. Refreshing part of it is far faster than loading it again. Problem is there's several ways data can be used. Adding items Editing rows Performing actions on selected rows (selected using a checkbox) Changing single items (like location, phone) My problem is making GENERALIZABLE ajax code that can operate on the data in a div, using class names to assemble the proper information for the ajax call. I did pretty well, but can't help but want to see if there's a better way to do it.

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  • How to customize the Visual Studio 2010 RC StartPage recent projects

    - by devlife
    I'd like to play around with customizing the visual studio 2010 rc start page recent items. For what I have in mind I'd need to customize the datasource / databinding but I can't find where the information is coming from. <ScrollViewer Grid.Row="1" HorizontalAlignment="Stretch" Style="{DynamicResource StartPage.ScrollViewerStyle}" VerticalAlignment="Stretch" VerticalScrollBarVisibility="Auto"> <sp:MruListBox DataContext="{Binding Path=RecentProjects}" ItemsSource="{Binding Path=Items}" Background="Transparent" BorderThickness="0" AutomationProperties.AutomationId="MruList"/> </ScrollViewer> Can anyone point me in the right direction? I see that it is binding to RecentProjects but where is that coming from?

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  • TFS and working with multiple solutions

    - by RandomEngy
    How do people generally deal with TFS when you've got to work with multiple solution files? If you've got one instance it's easy because you can always go to that window for the source control explorer, pending changes, check on builds or work items. But when you have 4-5 solutions, it becomes tricky to deal with. You might expand some folders or check some pending items on one VS instance but you have to remember which one you did it on. Having a separate instance dedicated just to TFS tasks is tempting, but there's only one window state for the whole program. If that instance is closed last, all instances will come up with all the TFS windows open. How do other people deal with this? Can you use separate profiles somehow and cordon off a "TFS" instance of Visual Studio?

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