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How to merge the columns of Gridview in asp.net

Posted By:Brijesh Kumar       Posted Date: March 15, 2011    Points: 40    Category: DataGrid    URL: http://www.dotnetspark.com  

This article refer for the merge the columns of GridView in asp.net c#

Write this code on Gridview1's DataBound event:--
 for (int rowIndex = GridView1.Rows.Count - 2; rowIndex >= 0; rowIndex--)
            GridViewRow gvRow = GridView1.Rows[rowIndex];
            GridViewRow gvPreviousRow = GridView1.Rows[rowIndex + 1];
            for (int cellCount = 0; cellCount < gvRow.Cells.Count; cellCount++)
                if (gvRow.Cells[cellCount].Text == gvPreviousRow.Cells[cellCount].Text)
                    if (gvPreviousRow.Cells[cellCount].RowSpan < 2)
                        gvRow.Cells[cellCount].RowSpan = 2;
                        gvRow.Cells[cellCount].RowSpan = gvPreviousRow.Cells[cellCount].RowSpan + 1;
                    gvPreviousRow.Cells[cellCount].Visible = false;


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