No way to x:bind columns

[harinikmsft]

From @dotMorten on April 24, 2018 19:9

There doesn't seem to be a way to specify x:DataType anywhere for setting up x-bind on the columns:

        <controls:DataGrid ItemsSource="{x:Bind Data, Mode=TwoWay}" >
            <controls:DataGrid.Columns>
                <controls:DataGridTextColumn x:DataType="local:MyVM"  Binding="{x:Bind Name}" Header="Name" />
            </controls:DataGrid.Columns>
        </controls:DataGrid>

Copied from original issue: harinikmsft/datagrid_win10#3

[harinikmsft]

I should call this out in the basic documentation, but x:Bind on Columns is not supported in V1. We are exploring the right model to surface x:Bind in DataGrid in the framework at this time and once that story is clear, we will be adding that to DataGrid. For V1 - we have made sure that the classic Binding developer experience familiar to Silverlight/WPF developers is supported.

You can use x:Bind for the ItemsSource and inside a DataTemplate for a DataGridTemplateColumn like below (this is the same as x:Bind in other places in the XAML framework today):

<DataGrid ItemsSource="{x:Bind Customers}" AutoGenerateColumns="True" >
    <DataGrid.Columns>
     <DataGridTemplateColumn Header="Name">
        <DataGridTemplateColumn.CellTemplate>
          <DataTemplate x:DataType="Customer" >
            <StackPanel>
               <TextBox Text="{x:Bind FirstName}" />
               <TextBox Text="{x:Bind LastName}" />
            </StackPanel>
          </DataTemplate>
        </DataGridTemplateColumn.CellTemplate>
      </DataGridTemplateColumn>
    </DataGrid.Columns>
  </DataGrid>

[WilliamABradley]

Perhaps:

<DataGrid ItemsSource="{x:Bind Customers}" AutoGenerateColumns="True" >
    <DataGrid.Columns>
        <DataGridColumnCollection x:DataType="local:Customer">
            <DataGridTextColumn Binding="{x:Bind Name}" Header="Name" />
        </DataGridColumnCollection>
    </DataGrid.Columns>
  </DataGrid>

I'm not sure if that is possible without a DataTemplate, but it is the cleanest way as you only have to specify once.