Modal Popup Extender rendering problem.

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C#

ASP.NET

Ajax

Hi Expert,

In My website Nridubai.com website i am showing

all companies and their information to admin.

For this purpose I have use gridview control, And each gridview cell is clickable.

And i am using following code for this,

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
  {
      if (e.Row.RowType == DataControlRowType.DataRow)
      {
          if (e.Row.RowType == DataControlRowType.DataRow)
          {
              LinkButton _singleClickButton = (LinkButton)e.Row.Cells[0].Controls[0];
              string _jsSingle = ClientScript.GetPostBackClientHyperlink(_singleClickButton, "");
              // Add events to each editable cell
              for (int columnIndex = 0; columnIndex < e.Row.Cells.Count; columnIndex++)
              {
                  // Add the column index as the event argument parameter
                  string js = _jsSingle.Insert(_jsSingle.Length - 2, columnIndex.ToString());
                  // Add this javascript to the onclick Attribute of the cell
                  e.Row.Cells[columnIndex].Attributes["onclick"] = js;
                  // Add a cursor style to the cells
                  e.Row.Cells[columnIndex].Attributes["style"] += "cursor:pointer;cursor:hand;";
              }
          }
      }
  }

And I am fetching cell column index and row index on GridView1_RowCommand event

Upto this working fine for me.

Now i have to display each cell value in popup when i click.

And i now i am using MOdalpopup extender(mpe).In that i take 2 textbox one for company and second for color.

But when i click cell,it opens modalpopup correctly,but failed to display the value associated with textboxes.

During debuging values assigning properly to textbox.but when it opens popup ,textboxes showing blank value.and if suppose i type something in it and close and then open modalpop again ,they showing existing values.

And i think this problem occurs due to following method

protected override void Render(HtmlTextWriter writer)
   {
       foreach (GridViewRow r in GridView1.Rows)
       {
           if (r.RowType == DataControlRowType.DataRow)
           {
               for (int columnIndex = 0; columnIndex < r.Cells.Count; columnIndex++)
               {
                   Page.ClientScript.RegisterForEventValidation(r.UniqueID + "$ctl00", columnIndex.ToString());
               }
           }
       }

       base.Render(writer);
   }

Please help me sort out the problem,And sorry for my poor english.

Thanks in advance.