Increase columns width in Silverlight DataGrid to fill whole DG width

Question

I have a DataGrid Control which is bound to a SQL Table.

The XAML Code is:

Answer 1

Solution:

    void dg_sql_data_SizeChanged(object sender, SizeChangedEventArgs e)
    {
        DataGrid myDataGrid = (DataGrid)sender;
        // Do not change column size if Visibility State Changed
        if (myDataGrid.RenderSize.Width != 0)
        {
            double all_columns_sizes = 0.0;
            foreach (DataGridColumn dg_c in myDataGrid.Columns)
            {
                all_columns_sizes += dg_c.ActualWidth;
            }
            // Space available to fill ( -18 Standard vScrollbar)
            double space_available = (myDataGrid.RenderSize.Width - 18) - all_columns_sizes;
            foreach (DataGridColumn dg_c in myDataGrid.Columns)
            {
                dg_c.Width = new DataGridLength(dg_c.ActualWidth + (space_available / myDataGrid.Columns.Count));
            }
        }
    }