Question

I’ve written the following code to display some data, but the data grid is just appearing empty,
here is my code:

                    DataTable dt = new DataTable();
                    DataColumn col = new DataColumn("A", typeof(string));
                    col.MaxLength = 100;
                    dt.Columns.Add(col);
                    col = new DataColumn("B", typeof(string));
                    col.MaxLength = 100;
                    dt.Columns.Add(col);
                    DataRow row = dt.NewRow();
                    dt.Rows.Add(x,y);
                    dataGrid1.ItemsSource = dt.DefaultView;

Answer 1

Do you have AutoGenerateColumns="True" in your DataGrid declaration? e.g.

<sdk:DataGrid x:Name="dataGrid1" 
    Height="140" Margin="0,5,0,10"
    AutoGenerateColumns="True" /> 

For more precise control over column definitions, add a DataGrid.Columns element:

<toolkit:DataGrid x:Name="TheDataGrid"  
                          AutoGenerateColumns="False"> 
    <toolkit:DataGrid.Columns>         
        <toolkit:DataGridTextColumn Header="Contact Name" Width="SizeToCells"   
                                       Binding="{Binding ContactName}"  
                                       IsReadOnly="False"/> 

        ... more columns
    </toolkit:DataGrid.Columns> 
</toolkit:DataGrid>