Hello JungHyuk,

Thank you for posting in our forum.

Please find below the answers to your questions:

1. Is there any properties to show the header of row selector – in order show row selector header you need to set the RowSelectorHeaderStyle property. You can use code like this:

   this.ultraGrid1.DisplayLayout.Override.RowSelectorHeaderStyle = RowSelectorHeaderStyle.SeparateElement;

   More about RowSelectorHeaderStyle property you may find by follow the next link http://help.infragistics.com/Help/Doc/WinForms/2014.2/CLR4.0/html/Infragistics4.Win.UltraWinGrid.v14.2~Infragistics.Win.UltraWinGrid.UltraGridOverride~RowSelectorHeaderStyle.html

2. Is there any idea to select all rows by clicking once – with RowSelectorHeaderStyle set to SeparateElement you can check in MouseClick event handler if the RowSelectorHesder was clicked. If so add all the rows of the grid to Selected.Rows collection. You can use code like this:

    private void UltraGrid1_MouseClick(object sender, MouseEventArgs e)

           {

               UltraGrid grid = sender as UltraGrid;

               if (grid != null)

               {

                   RowSelectorHeaderUIElement rowSelectorHeaderUIElement = grid.DisplayLayout.UIElement.ElementFromPoint(e.Location) as RowSelectorHeaderUIElement;

                   if (rowSelectorHeaderUIElement != null)

                   {

                     this.ultraGrid1.Selected.Rows.AddRange((UltraGridRow[])this.ultraGrid1.Rows.All);

                   }

               }

           }

Please check the attached sample solution implementing this approach and let me know if this is what you are looking for or if I am missing something.

Thank you for using Infragistics Controls.

Sincerely,

Milko

Developer Support Engineer

Infragistics

www.infragistics.com/support