绑定到XAML中孩子的财产

Question

I have a object CellContent with the properties Text and BackgroundColor . With the CellContent objects I created a list of Persons with the properties FirstName and LastName . I bound this list to a DataGrid. What I like to do, is to set the background color according to the Brush property.

The code below works well for the specific property LastName but I want to set it for FirstName too.

<DataGrid x:Name="DG">
     <DataGrid.CellStyle>
         <Style TargetType="{x:Type DataGridCell}">
             <Setter Property="DataGridCell.Background" Value="{Binding LastName.Background}" />
         </Style>
     </DataGrid.CellStyle>
</DataGrid>

So the question is, how do I bind to child of the CellContent object in XAML or how can I replace LastName with some kind of wildcard?

Answer 1

I used the AutoGeneratingColumn event to assign the Background property while generating the table. The DataGrid XAML now looks like this:

<DataGrid Name="DG" AutoGeneratingColumn="DG_AutoGeneratingColumn" />           

and the code behind:

private void DG_AutoGeneratingColumn(object sender, DataGridAutoGeneratingColumnEventArgs e)
{                        
   DataGridTextColumn textColumn = new DataGridTextColumn();
   textColumn.Header = e.Column.Header;
   textColumn.Binding = new Binding(e.Column.Header.ToString());

   textColumn.CellStyle = new Style();
   textColumn.CellStyle.TargetType = typeof(DataGridCell);
   textColumn.CellStyle.Setters.Add(new Setter(DataGridCell.BackgroundProperty, new Binding(e.Column.Header + ".Background")));

   (sender as DataGrid).Columns.Add(textColumn);

   // Prevent autogenerating the columns
   e.Cancel = true;
}

This is certainly not the best solution but it solved my problem.