ultra grid with button field display text on that button

Question

i have one ultragrid control in my windows application i display the one button with name as "permissions" on that and handle that click event what will i do give the ans ...

the button is common for all rows

to create button the code i use is
 Me.UltraGrid1.DisplayLayout.Bands(0).Columns.Add("DocumentCategories")
        e.Layout.Bands(0).Columns("DocumentCategories").Style = UltraWinGrid.ColumnStyle.Button
        'e.Layout.Bands(0).Columns.Insert(7, "View")
        e.Layout.Rows.Band.Columns("DocumentCategories").ButtonDisplayStyle = UltraWinGrid.ButtonDisplayStyle.Always
        'e.Layout.Rows.Band.Columns("DocumentCategories").