WPF Toolkit Datagrid - how do you turn selection off?

Question

I have a datagrid in WPF that I am binding to an object.

I have a DataGridCheckBoxColumn on there which I want the users to be able to go through and tick the ones

Answer 1

The first click puts the cell in edit mode then the second click allows you to modify the checkbox. You can change this behavior by using a DataGridTemplateColumn instead of a DataGridCheckBoxColumn. Replace your DataGridCheckBoxColumn with this:

<my:DataGridTemplateColumn MinWidth="50" Width="Auto" Header="Include" SortMemberPath="Include">
   <my:DataGridTemplateColumn.CellTemplate>
      <DataTemplate>
         <CheckBox Style="{StaticResource DataGridCheckBoxStyle}" IsChecked="{Binding Path=Include}" />
      </DataTemplate>
   </my:DataGridTemplateColumn.CellTemplate>
</my:DataGridTemplateColumn>

DataGridCheckBoxStyle just makes the CheckBox look a little nicer in the DataGrid:

<Style x:Key="DataGridCheckBoxStyle" TargetType="CheckBox" BasedOn="{StaticResource {x:Type CheckBox}}">
   <Setter Property="VerticalAlignment" Value="Center" />
   <Setter Property="Margin" Value="8,0,3,0" />
</Style>

Answer 2

First of, I know this is a pretty old question but I still thought I'd try and answer it.

I had the same problem a couple of days ago and came across a surprisingly short solution for it (see this blog). Basically, all you need to do is replace the DataGridCheckBoxColumn definition in your XAML with the following:

<DataGridTemplateColumn Header="MyCheckBoxColumnHeader">
    <DataGridTemplateColumn.CellTemplate>
        <DataTemplate>
            <CheckBox HorizontalAlignment="Center" VerticalAlignment="Center" IsChecked="{Binding Path=MyViewModelProperty, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" />
        </DataTemplate>
    </DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>

The upside of this solution is obvious - it's XAML-only; thus it effectively refrains your from burdening your code-back with additional UI logic and helps you maintain your status in the eyes of MVVM zealots ;).