The ASP Column: DataList vs. DataGrid in ASP.NET

Based on my previous control "Multiple Column DropDownList for ASP.NET", I received many emails asking for the same control to be used in the DataGrid for web applications. Here we go.. This control can be used as the regular MS DropDownList in the DataGrid and also as a regular dropdownlist. It has all the properties, like DataTextField, DataValueField, DataSource, SelectedIndex etc. The download file contains the samples both in VB.NET and C#. In this sample, I have used the Northwind database of SQL Server.

Hi, I am creating a WPF Datagrid with the combobox column in it. All the datagrid binding and combobox column binding works fine without any problem. But, when I select a value in the combobox column and move to the next column or row, the value is reset to the previous empty selection. Am I missing anything here? Please find the code snippet that I have used below. <dg:DataGridComboBoxColumn x:Name="technicianname" Header="Assigned To" ItemsSource="{Binding}"/> technicianname.ItemsSource = dtTechnicianInfo.DefaultView; technicianname.DisplayMemberPath = "TechnicianName"; technicianname.SelectedValuePath = "TechnicianEid"; Thanks in Advance!!! Best Regards, Subalakshmi Vijayarajan.

We're working with the WPF DataGrid and I have a question about  dragging column headers: The grid lets the user rearrange the columns, by dragging the column header left or right.  So far, so good. But, sometimes we have many columns, and only the first few columns are visible; so there is a horizontal scrollbar.  In such case, if the user drags a column header to the right edge of the DataGrid window, I want the DataGrid to scroll, automatically, one column at a time.  Is there an easy way to do that? (To be clear: yes, the user can already scroll horizontally by interacting with the horizontal scrollbar, but that isn't what I'm asking about.  I'm asking if the "drag a column header left or right" gesture can cause the DataGrid to scroll left or right.) I guess I could handle various low-level events, but it seems like it shouldn't be necessary -- DataGrid has so much functionality built-in, that I'm guessing it already has the ability to scroll when the user drags the column header to the edge.  So, is there either (a) a property that I can set, to tell the DataGrid to scroll when the user drags a column header to the edge of the window;  or (b) a code example showing how to achieve this effect myself?  Thanks!

Hello, I am using the WPF Toolkit Datagrid with a checkbox defined in a template column/template cell. We are using the checkbox template so that selecting the checkbox will also highlight the row in the datagrid. Here is the template definition: <dg:DataGridTemplateColumn MinWidth="50" Width="Auto" Header="" CanUserReorder="False"> <dg:DataGridTemplateColumn.CellTemplate> <DataTemplate> <CheckBox IsChecked="{Binding Path=IsCheckedm, Mode=TwoWay}" /> </DataTemplate> </dg:DataGridTemplateColumn.CellTemplate> </dg:DataGridTemplateColumn> We are allowing multiple row selection in the datagrid and using MVVM (using MVVM Light). We would like to keep a list in the View Model of selected rows as they are selected/unselected. Any suggestions on how we can leverage MVVM to keep the list of selected/unselected elements current. Many Thanks --Sam

i wanna do something like this: 4 column headers: Header Font, Header Size, Cell Font, Cell Size you can see they are 2 grps, with a pair of each. now i wanna create the column headers like:     Header  |     Cell Font | Size  | Font | Size is it possible? and how to do that?

Hi, I am creating a WPF datagrid template column with combobox. The problem that I face now is, I am not able to bind a table to the combobox inside the WPF datagrid template column. Here is the code snippet. <dg:DataGrid x:Name="Students" AutoGenerateColumns="False" Loaded="OnLoad"> <dg:DataGrid.Columns> <dg:DataGridTextColumn Binding="{Binding Path=Name}" Header="Name" Width="75"/> <dg:DataGridTemplateColumn x:Name="Dept"> <dg:DataGridTemplateColumn.CellTemplate> <DataTemplate> <ComboBox x:Name="DeptId" ItemsSource="{Binding}" SelectionChanged="Dept_SelectionChanged" DisplayMemberPath="{Binding Path=DeptName}" SelectedValuePath="{Binding Path=DeptId}" SelectedItem="{Binding Path=Belongs}"/> </DataTemplate> </dg:DataGridTemplateColumn.CellTemplate> </dg:DataGridTemplateColumn> </dg:DataGrid.Columns> </dg:DataGrid> Please help me to find out the way to assign a dynamic source to the combobox through code behind file. Thanks in Advance!!! Best Regards, Subalakshmi Vijayarajan.

I have a simple window with 2 tabs, and 4 datagrids.  I set up each one with similar, if not identical settings.  They all get their own DataSet based binding, and have standard Text columns, and combo box columns.  Recently (past week) of development, while I was adding filtering/sorting/grouping features to my program, the column widths have begun to ingore my settings.  By collapsed I mean approx 20 pixels wide (just enough for the sorting Icon). Contacts datagrid, works great in run time, but in design time the columns are all collapsed. ContactsToClients data grid has no abnormal issues Clients datagrid AND Clients to Contacts datagrid look great in design time, but show collapsed columns in run time. How do I hunt down the problem?  I've tried removing all the temporary code, and rebuilding, closing Visual Studio and reopening.  I've remmed out the sorting code.  None of these have any affect.  It appears that my settings are all being ignored.  Here is the XAML code:   <Window x:Class="wdContacts" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:my

I have several wpf DataGrids that use something similar to: {     Binding Path=ContactID, Converter={StaticResource contactIDToNameConverter}}"       As a best concept for various ID fields in my database.  This is great when needing to display editable data that is linked by ID, and my converter handles the validation and cleanup if needed. Otherwise an SQL View, or Joined Table SQL would not be able to send updates directly to the database (DataSet Wizard).  For this DataGrid's Contact column (bound to the ContactID field from a ICollectionView; bound to a DataSet.ClientsToContacts DataTable), I have an underlying value of Integer, and a converted surface value of String.  I want to sort on the string. Using ICollectionView.View.SortDescription(path,direction) will only sort on the Integer, and I am desprately seeking work arounds.  Please help. jvj

I have a WPF4 datagrid, populated via linq to sql, which has some numeric fields. How do I sum the value of one of these fields for just the selected rows? (multiselect is turned on)