Set the current value of gridview DDL on EditItemTemplate

How do I set the selected value in a gridview dropdownlist to what is in the current record like I currently do for a text box.

I am hoping the user can look at the current values and decide if they need to be changed — this is what I use for a textbox:

<asp:TemplateField HeaderText="Other Notes" SortExpression="Other Notes" HeaderStyle-Wrap="false">
    <edititemtemplate>
        <asp:TextBox ID="txtOtherNotes" runat="server" Text='<%# Eval("[Other Notes]") %>' DataTextField="Other Notes" DataValueField="Other Notes"></asp:TextBox>
    </edititemtemplate>
    <itemtemplate>
        <asp:Label runat="server" Text='<%# Bind("[Other Notes]") %>' ID="lblOtherNotes"></asp:Label>
    </itemtemplate>
</asp:TemplateField>

Answers:

Thank you for visiting the Q&A section on Magenaut. Please note that all the answers may not help you solve the issue immediately. So please treat them as advisements. If you found the post helpful (or not), leave a comment & I’ll get back to you as soon as possible.

Method 1

You will need to use the OnRowDataBound event for that.

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
    //check if the row is a datarow
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
        //check if the row is in edit mode
        if ((e.Row.RowState & DataControlRowState.Edit) > 0)
        {
            //find the dropdownlist in the row using findcontrol
            DropDownList ddl = (DropDownList)e.Row.FindControl("DropDownList");

            //fill the dropdownlist from code behind if needed
            ddl.DataSource = source;
            ddl.DataTextField = "key";
            ddl.DataValueField = "valee";
            ddl.DataBind();

            //cast the dataitem back to a datarowview
            DataRowView row = e.Row.DataItem as DataRowView;

            //set the correct listitem as selected
            ddl.SelectedValue = row["myValue"].ToString();
        }
    }
}

Method 2

I ended up using:

 SelectedValue='<%# Bind("myID") %>'

to display the current record in the ddl.

All methods was sourced from stackoverflow.com or stackexchange.com, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0