Question

I am using WPF Data-grid with auto-generated columns. I am assigning data-table with one column but no rows as Items-source.

public DataTable GetInitData()
    {
        empDS = new DataSet();
        empTbl = new DataTable();
        empDS.Tables.Add(empTbl);
        dc = new DataColumn("Test");
        empDS.Tables[0].Columns.Add(dc);
        empDS.AcceptChanges();
        return empDS.Tables[0];
    }

and I call the method above in the constructor.

 public MainWindow()
    {
        this.InitializeComponent();
        this.grdEmp.ItemsSource = this.GetInitData().DefaultView;
    }

Screen-shot:

Now when I press F5 and run the code… the Data-grid doesn’t show any column. Please guide me, why it is not showing any column. If you need any other information do let me know.

Regards,
Priyank

Answer 1

If you add a single row to your table you will see the column generated. Therefore, I can only suggest this is a limitation (bug?) in the WPF DataGrid. Depending on what you’re trying to achieve, you might like to add an empty row to your data first.

public DataTable GetInitData()
{
    var empDS = new DataSet();
    var empTbl = new DataTable();
    empDS.Tables.Add(empTbl);
    var dc = new DataColumn("Test");
    empDS.Tables[0].Columns.Add(dc);
    var row = empDS.Tables[0].NewRow();
    //row[0] = "foo";
    empDS.Tables[0].Rows.Add(row);
    empDS.AcceptChanges();
    return empDS.Tables[0];
}