Multi Sort Limit..

[Dip]

I have a radgrid with 10 column which need multi sorting but I have to limit to three column.
Like,

ID   FIRST   LAST   TEL   EMAIL
1       2           3
But if he clicks 'TEL' now, then
ID   FIRST   LAST   TEL    EMAIL
         1           2         3
Anyone can help me out..If possible I need to switch images to indicate three column differently?


Thanks,
DIP

[Shinu]

Hi Dip,

 Give a try with the following code snippet and see whether it helps.

CS:

  protected void RadGrid1_PreRender(object sender, EventArgs e)
    {
        int sortCount = RadGrid1.MasterTableView.SortExpressions.Count;
        if (sortCount > 0)
        {
            if (sortCount > 3)
            {


                string strUniqueName = RadGrid1.MasterTableView.SortExpressions[0].FieldName;

                GridSortExpression sortExp = new GridSortExpression();
                sortExp.FieldName = strUniqueName;
                RadGrid1.MasterTableView.SortExpressions.RemoveSortExpression(sortExp);
            }
            for (int i = 0; i <= sortCount - 1; i++)
            {

                if (i == 0)
                {
                    string strUniqueName1 = RadGrid1.MasterTableView.SortExpressions[i].FieldName;
                    RadGrid1.MasterTableView.GetColumnSafe(strUniqueName1).SortAscImageUrl = "Image1.gif";
                    RadGrid1.MasterTableView.GetColumnSafe(strUniqueName1).SortDescImageUrl = "Image1.gif";

                }
                else if (i == 1)
                {
                    string strUniqueName2 = RadGrid1.MasterTableView.SortExpressions[i].FieldName;
                    RadGrid1.MasterTableView.GetColumnSafe(strUniqueName2).SortAscImageUrl = "Image2.gif";
                    RadGrid1.MasterTableView.GetColumnSafe(strUniqueName2).SortDescImageUrl = "Image2.gif";
                }
                else if (i == 2)
                {
                    string strUniqueName3 = RadGrid1.MasterTableView.SortExpressions[i].FieldName;
                    RadGrid1.MasterTableView.GetColumnSafe(strUniqueName3).SortAscImageUrl = "Image3.gif";
                    RadGrid1.MasterTableView.GetColumnSafe(strUniqueName3).SortDescImageUrl = "Image3.gif";
                }
            }

            RadGrid1.MasterTableView.Rebind();


        }

    }

Thanks
Shinu

[Dip]

Can't ask better then this...thanks a lot...