ASP.NET (C#) Question

Getting value from dropdown in gridview

i am trying to make a "clock in / out site" and one of the functions is for the user to edit old clock ins/outs. i have added a dropdown with 2 values "IND" and "UD". How do i get these values out, and send them to my "CHECKIN" sql value.
I hope you know what iam trying to explain.

this is what it looks like:

enter image description here

The Dropdown:

<asp:DropDownList ID="DropDownList2" runat="server"
<asp:ListItem Selected="True">Ind</asp:ListItem>
<asp:ListItem Value="UD">Ud</asp:ListItem>

what ive tried:

protected void DropDownList2_SelectedIndexChanged(object sender, EventArgs e)
GridViewRow row = GridView1.SelectedRow;
string val = row.Cells[3].ToString();
SqlDataSource1.SelectParameters.Add("CHECKEDIN", val);

and aswell as:

protected void DropDownList2_SelectedIndexChanged(object sender, EventArgs e)
DropDownList ddl = (DropDownList)GridView1.FindControl("DropDownList2");
string val = ddl.SelectedValue;
SqlDataSource1.SelectParameters.Add("CHECKEDIN", val);

Both of these return "null" tho

Answer Source

Use RowDataBound event of GridView.


protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
    if (e.Row.RowType == DataControlRowType.DataRow 
               && GridView1.EditIndex == e.Row.RowIndex)
        DropDownList ddl = (DropDownList)e.Row.FindControl("DropDownList2");
        string val = ddl.SelectedValue.ToString();
        SqlDataSource1.SelectParameters.Add("CHECKEDIN", val);
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