Hi

I set contextmenuStrip for the ultraGrid.Click the button of the contextmenuStrip to
select the ultraGrid all rows.The currnet UltraGrid has the least 5000 data.
Then change the selected row in a column of data.
Such as:
   this.UltraGrid.ActiveRow = null;
            this.UltraGridSelected.Rows.Clear();
            for (int i = 0; i < this.UltraGrid.Rows.Count; i++)
            {
                this.UltraGrid.Rows[i].Selected = true;
            }
(Or use the foreach,Bind)

   if (this.UltraGrid.Selected.Rows.Count > 1)
                {
                   for (int i = 0; i < this.UltraGridSelected.Rows.Count; i++)
                   {
                     this.UltraGrid.Selected.Rows[i].Cells["Cloumn6"].Value = strProType;
                   }
                }

But this efficiency is very low,resulting in slow page.
There is better way to solve this problem?