Custom DataGrid column with a CellTemplate and binding

Question

I need to create a reusable DataGrid column with a custom CellTemplate. This CellTemplate should, among other things, contain a TextBlock control to which I need to bind val

Answer 1

The question is pretty old, but i recently faced this issue myself. An Alternative to @Gregfr answer above is to write your custom DataGridColumn class. The following is what i have done for DatePicker Column:

 public class DataGridDatePickerColumn : DataGridBoundColumn
  {
    protected override FrameworkElement GenerateEditingElement(DataGridCell cell, object dataItem)
    {
      var datePicker = new DatePicker();
      datePicker.SetBinding(DatePicker.TextProperty, this.Binding);
      datePicker.SetBinding(DatePicker.SelectedDateProperty, this.Binding);
      return datePicker;
    }

    protected override FrameworkElement GenerateElement(DataGridCell cell, object dataItem)
    {
      var textBlock = new TextBlock();
      textBlock.SetBinding(TextBlock.TextProperty, this.Binding);
      return textBlock;
    }
  }

Then i use it in one-line call in my xaml-pages like this:

<h:DataGridDatePickerColumn IsReadOnly="False" Header="Some Date" Binding="{Binding SomeDate, StringFormat='dd.MM.yyyy'}" />

In your case you could extend this C# Class by writing supporting functions that work with PreviewTextInput property and use regex expressions like [0-9]+ to control editing.

Answer 2

I think the simplest thing to do is to create a customcontrol then use it like this:

            <DataGridTemplateColumn>
                <DataGridTemplateColumn.CellTemplate>
                    <DataTemplate>
                        <controls:CustomColumn Header="Name" Binding="{Binding Name}" />
                    </DataTemplate>
                </DataGridTemplateColumn.CellTemplate>
            </DataGridTemplateColumn>

I did something similar yesterday, and it works pretty well