Question

Is it possible to have a Checkbox that only shows up when Editing the last row of a GridView?

I have tried something like this in the EditItemTemplate:

<asp:CheckBox ID="chkNextDay" runat="server" 
              ToolTip="Is it a next-day departure?"
              Enabled="true" 
              Checked='<%# DateTime.Parse(Eval("OutHour","{0:d}")).Date >
                           DateTime.Parse(Eval("InHour","{0:d}")).Date  %>'/>

Then on code-behind I tried hiding it for rows other than the last one like this:

protected void grvOutHour_RowEditing(object sender, GridViewEditEventArgs e)
        {
            GridView grvOutHour = (GridView)this.grvReport.Rows[grvReport.EditIndex].FindControl("grvOutHour");
            TextBox txtBox = (TextBox)grvOutHour.Rows[e.NewEditIndex].FindControl("txtEditOutHour");
            CheckBox nextDay = (CheckBox)grvOutHour.Rows[e.NewEditIndex].FindControl("chkNextDay");
            if (grvOutHour.Rows.Count-1 != e.NewEditIndex)
                nextDay.Visible = false;
        }

This ALMOST worked, but the checkbox kept showing for all fields, I think because the RowDataBound is called AFTER RowEditing again so it renders the whole thing again 🙁

Any suggestions?

Thanks,
EtonB.

Answer 1

Use RowDataBound instead…

protected void grvOutHour_RowDataBound(object sender, GridViewRowEventArgs e)
{
    if (e.Row.RowState == DataControlRowState.Edit)
    {
        GridView grid = (GridView)sender;
        CheckBox nextDay = (CheckBox)e.Row.FindControl("chkNextDay");
        nextDay.Visible = (e.Row.RowIndex == (grid.Rows.Count - 1));
    }
}