client script is not executed when dropdown list's selected value is select

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C#

protected void griddistrict_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
    if (((DropDownList)(griddistrict.Rows[e.RowIndex].FindControl("editdrp"))).SelectedValue == "select")
    {
        //string msg = @"<script language='javascript' type='text/javascript'>alert('Please Select State !')</script>";
        //Page.RegisterStartupScript("msg", msg);
        ClientScript.RegisterStartupScript(typeof(Page), "alert", "<script language='javascript'>alert('Please Select State !');</script>");
    }
    else
    {
        objda.Stateid = Convert.ToInt32(((DropDownList)(griddistrict.Rows[e.RowIndex].FindControl("editdrp"))).SelectedValue.ToString());
        objda.nid = Convert.ToInt32(griddistrict.DataKeys[e.RowIndex].Value.ToString());
        objda.district = ((TextBox)(griddistrict.Rows[e.RowIndex].FindControl("EditdistName"))).Text;
        objda.code = ((TextBox)(griddistrict.Rows[e.RowIndex].FindControl("Editdistcode"))).Text;
        objda.modifidate = DateTime.Now.ToString("D");
        objda.Modifyby = Session["username"].ToString();
        objda.updatedist();
        try
        {
            string strHostName = System.Net.Dns.GetHostName();
            string clientIPAddress = System.Net.Dns.GetHostAddresses(strHostName).GetValue(0).ToString();
            objda.Ipaddress = clientIPAddress;
            objda.loginid = Session["username"].ToString();
            objda.description = "update   The Record   of nid  " + Convert.ToInt32(griddistrict.DataKeys[e.RowIndex].Value.ToString()) + "  in Table District Master Table";
            objda.insertlog();
        }
        catch
        {
        }
        griddistrict.EditIndex = -1;
        bindgrid();
    }
}

code is executed successfully

i see using brack point.

script is also executed but not show to client

Posted 2-Dec-10 22:44pm

VinodKumar01

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thatraja · Answer 1 · 2010-12-03T03:54:00

VinodKumar01 wrote:
if (((DropDownList)(griddistrict.Rows[e.RowIndex].FindControl("editdrp"))).SelectedValue == "select")

Basically Dropdownlist contains two properties DataTextField(For Name type) & DataValueField(For ID type) regarding Databind. I suspect "select" is DataTextField as per your code.

So your code should be

if (((DropDownList)(griddistrict.Rows[e.RowIndex].FindControl("editdrp"))).SelectedText == "select")

or

if (((DropDownList)(griddistrict.Rows[e.RowIndex].FindControl("editdrp"))).SelectedValue == 0)//Replace the 0 with your value

Why don't you try validators for controls? Try these
Link 1[^]
Link 2[^]