Display GridView selected Row in RDLC report on Button Click in ASP.Net

kankon says:

protected void OpenWindow(object sender, EventArgs e)

       {

           DataTable dt = new DataTable();

           dt.Columns.AddRange(new DataColumn[11] {

           new DataColumn("Id"), new DataColumn("idnamev"), new DataColumn("idcivilv"), new DataColumn("datesp10"), new DataColumn("el3malv"), new DataColumn("jop"), new DataColumn("eldarajah"), new DataColumn("vacationdata"), new DataColumn("datestart"), new DataColumn("dateend"), new DataColumn("namevacation")});

           foreach (GridViewRow row in GridView1.Rows)

           {

 

                   string id = row.Cells[1].Text;

 

                   string idnamev = (row.FindControl("lblidnamev") as Label).Text.Trim();

                   string idcivilv = (row.FindControl("lblidcivilv") as Label).Text.Trim();

                   string datesp10 = (row.FindControl("lbldatesp10") as Label).Text.Trim();

                   string el3malv = (row.FindControl("lblel3malv") as Label).Text.Trim();

                   string jop = (row.FindControl("lbljop") as Label).Text.Trim();

                   string eldarajah = (row.FindControl("lbleldarajah") as Label).Text.Trim();

 

                   string vacationdata = (row.FindControl("lblBoxDate3") as Label).Text.Trim();

                   string datestart = (row.FindControl("lbldate") as Label).Text.Trim();

                   string dateend = (row.FindControl("lbltime") as Label).Text.Trim();

                   string namevacation = (row.FindControl("infosptex") as Label).Text.Trim();

 

 

                   dt.Rows.Add(id, idnamev, idcivilv, datesp10, el3malv, jop, eldarajah, vacationdata, datestart, dateend, namevacation);

               }

           

 

           Session["GridViewRow"] = dt;

           string url = "/Admin/vication.aspx";

           string s = "window.open('" + url + "', 'popup_window', 'width=800,height=950,resizable=no');";

           ClientScript.RegisterStartupScript(this.GetType(), "script", s, true);

       }

Change with below code.

protected void OpenWindow(object sender, EventArgs e)
{
    DataTable dt = new DataTable();
    dt.Columns.AddRange(new DataColumn[11] {
        new DataColumn("Id"), new DataColumn("idnamev"), new DataColumn("idcivilv"), new DataColumn("datesp10"), new DataColumn("el3malv"), new DataColumn("jop"), new DataColumn("eldarajah"), new DataColumn("vacationdata"), new DataColumn("datestart"), new DataColumn("dateend"), new DataColumn("namevacation")});
    GridViewRow row = ((sender as Button).NamingContainer as GridViewRow);
    string id = row.Cells[1].Text;
    string idnamev = (row.FindControl("lblidnamev") as Label).Text.Trim();
    string idcivilv = (row.FindControl("lblidcivilv") as Label).Text.Trim();
    string datesp10 = (row.FindControl("lbldatesp10") as Label).Text.Trim();
    string el3malv = (row.FindControl("lblel3malv") as Label).Text.Trim();
    string jop = (row.FindControl("lbljop") as Label).Text.Trim();
    string eldarajah = (row.FindControl("lbleldarajah") as Label).Text.Trim();

    string vacationdata = (row.FindControl("lblBoxDate3") as Label).Text.Trim();
    string datestart = (row.FindControl("lbldate") as Label).Text.Trim();
    string dateend = (row.FindControl("lbltime") as Label).Text.Trim();
    string namevacation = (row.FindControl("infosptex") as Label).Text.Trim();

    dt.Rows.Add(id, idnamev, idcivilv, datesp10, el3malv, jop, eldarajah, vacationdata, datestart, dateend, namevacation);

    Session["GridViewRow"] = dt;
    string url = "/Admin/vication.aspx";
    string s = "window.open('" + url + "', 'popup_window', 'width=800,height=950,resizable=no');";
    ClientScript.RegisterStartupScript(this.GetType(), "script", s, true);
}