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Sorting Gridview Control ASP.NET

/ Published in: C#
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  1. protected void grdVw_FileList_Sorting(object sender, GridViewSortEventArgs e)
  2.         {
  3.  
  4.             GridSorting(e.SortExpression, grdVw_FileList);
  5.  
  6.         }
  7.  
  8.         private void GridSorting(string column, GridView grid)
  9.         {
  10.             // Session["column"] = ""; clear this after ever search/load
  11. string column_ASC = column + " ASC";
  12.             string column_DESC = column + " DESC";
  13.  
  14.             DataTable dt = (DataTable)Session["fileList"];
  15.  
  16.             if (Session["column"].ToString().ToUpper() == column_ASC.ToUpper())
  17.             {
  18.                 DataView dv = new DataView(dt, "", column_DESC, DataViewRowState.CurrentRows);
  19.                 grid.DataSource = dv;
  20.                 grid.DataBind();
  21.                 Session["column"] = column_DESC;
  22.             }
  23.             else
  24.             {
  25.                 DataView dv = new DataView(dt, "", column_ASC, DataViewRowState.CurrentRows);
  26.                 grid.DataSource = dv;
  27.                 grid.DataBind();
  28.                 Session["column"] = column_ASC;
  29.             }
  30.  
  31.         }

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