Gridview.row.count is zero why

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error message

MSIL

Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index

C++

protected void ParamGV_RowCommand(object sender, GridViewCommandEventArgs e)
    {
        GridViewRow row = (GridViewRow)((Control)e.CommandSource).Parent.Parent;
        GridView gv = (GridView)(e.CommandSource);
        //string s = gv.DataKeys[row.RowIndex][0].ToString();
        int i = Convert.ToInt32(e.CommandArgument);
        GridViewRow Childrow = gv.Rows[i];
        //HeadNameDdl.SelectedValue = Server.HtmlDecode(Childrow.Cells[1].Text).Trim();
        //ViewState["ParameterId"] = Server.HtmlDecode(Childrow.Cells[2].Text).Trim();
        //ParameterNametxt.Text = Server.HtmlDecode(Childrow.Cells[3].Text).Trim();
    }

i have nested grid view, in inner grid Edit i.e

XML

<asp:CommandField SelectText="EDIT" ShowSelectButton="True" ItemStyle-Width="15"
                                                           HeaderText="EDIT">
                                                           <ItemStyle Width="15px" />
                                                       </asp:CommandField>

command filed

On pressing Edit it firing

C++

ParamGV_RowCommand

event but am getting above error , i observered gv.row.count is zero why

Posted 30-Dec-10 0:40am

karthikkushala

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velmahesh · Answer 1 · 2010-12-30T01:08:00

Solution 2

:thumbsdown:

i think there is not found the equalent records. So, record count is Zero.

so, you check the condition:rose:

:thumbsup:

Posted 30-Dec-10 1:08am

velmahesh

Pranay Rana · Answer 2 · 2010-12-30T00:45:00

try the following code....

protected void GridView1_RowDataBound(object sender,
GridViewRowEventArgs e)
{
if (e.Row.RowType != DataControlRowType.Header && e.Row.RowType
!= DataControlRowType.Footer && e.Row.RowType !=
DataControlRowType.Pager)
{
LinkButton lblTagLink =new LinkButton();
lblTagLink = (LinkButton)e.Row.FindControl("btnAddTags");
lblTagLink.CommandArgument= e.Row.RowIndex.ToString();
}
}

Then get the row index in

protected void GridView1_RowCommand(object sender,
GridViewCommandEventArgs e)
{

int RowIndex_ = int.Parse(e.CommandArgument.ToString());
Label lblMediaID_ =
(Label)GridView1.Rows[RowIndex_].FindControl("lblMedia_ID");

}