Enable a DropDown in Gridveiw on Gridview CheckBox?

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HI,
I m trying to enable/disable a drowpdown in gridview row on a checkbox checked event in the same grdview. I am using the following html in aspx page as

and

<asp:TemplateField HeaderText="DNA" HeaderStyle-HorizontalAlign="Left" ItemStyle-VerticalAlign="Top">
<ItemTemplate>
<asp:CheckBox ID="imgbDNA" runat="server" OnCheckedChanged="chkDNAGridview_OnCheckedChanged" />
                           </ItemTemplate>

</asp:TemplateField>

and aspx.cs code is

protected void chkDNAGridview_OnCheckedChanged(object sender, EventArgs e)
       {
           CheckBox ck1 = (CheckBox)sender;
           GridViewRow grow = (GridViewRow)ck1.NamingContainer;


           foreach(GridViewRow rowitem in gvAttendance.Rows)
           {
               DropDownList ddlR = (DropDownList)rowitem.Cells[3].FindControl("ddlReason");

               if (ck1.Checked == true)
                   ddlR.Enabled = true;
               else
                   ddlR.Enabled = false;

           }



       }

The problem with that code is it disable/enable dropdown in the gridview in the first row. But when i check/uncheck second row it disable or enable drowpdown in all the rows. I want to enable/disable dropdown in the specific row only on check/uncheck of checkbox.
Thanks in advance

Posted 8-Mar-11 20:52pm

touseef4pk

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Sandeep Mewara · Accepted Answer · 2011-03-08T21:09:00

But when i check/uncheck second row it disable or enable drowpdown in all the rows
Your code is doing that via foreach loop you wrote!

Remove foreach from the OnCheckChanged method. Instead use, something like:

C#

CheckBox ck1 = (CheckBox)sender;
GridViewRow grow = (GridViewRow)ck1.NamingContainer;
DropDownList ddlR = (DropDownList)grow.Cells[3].FindControl("ddlReason");

if (ck1.Checked == true)
    ddlR.Enabled = true;
else
    ddlR.Enabled = false;