Binding WPF DataGrid to DataTable using TemplateColumns

Question

I have tried everything and got nowhere so I\'m hoping someone can give me the aha moment. I simply cannot get the binding to pull the data in the datagrid successfully.

Answer 1

After finding this thread and having trouble with the code shown here, I ran across this thread on MSDN, and it works much better! No virtualization problems at all so far as I've seen.

http://social.msdn.microsoft.com/Forums/en/wpf/thread/8b2e94b7-3c44-4642-8acc-851de5285062

Code:

private void dataGrid1_AutoGeneratingColumn(object sender, Microsoft.Windows.Controls.DataGridAutoGeneratingColumnEventArgs e)
{
    if (e.PropertyType == typeof(MyData))
    {
        MyDataGridTemplateColumn col = new MyDataGridTemplateColumn();
        col.ColumnName = e.PropertyName;  // so it knows from which column to get MyData
        col.CellTemplate = (DataTemplate)FindResource("MyDataTemplate");
        e.Column = col;
        e.Column.Header = e.PropertyName;
    }
}

public class MyDataGridTemplateColumn : DataGridTemplateColumn
{
    public string ColumnName
    {
        get;
        set;
    }

    protected override System.Windows.FrameworkElement GenerateElement(DataGridCell cell, object dataItem)
    {
        // The DataGridTemplateColumn uses ContentPresenter with your DataTemplate.
        ContentPresenter cp = (ContentPresenter)base.GenerateElement(cell, dataItem);
        // Reset the Binding to the specific column. The default binding is to the DataRowView.
        BindingOperations.SetBinding(cp, ContentPresenter.ContentProperty, new Binding(this.ColumnName));
        return cp;
    }
}