Hello,

I posted a question earlier but have another problem after making those changes. The previous thread can be found here:

http://stackoverflow.com/questions/2700028/binding-a-dropdownlist-inside-a-detailsview

Basically, I've got a dropdownlist that's dynamically populated with a list of regions. It selects the correct region when viewing the dropdown, but when I try to edit it changes the value to null. I think it might be because it doesn't know which field to update. Previously, when the dropdown list was hardcoded, I had SelectedValue='<%# Bind("region_id")%>' set on the dropdown list, and when I updated it worked fine. However, I had to move the setting of the selected value into the code behind and now it just gets set to null every time I update.

Here's the aspx code:

<asp:DetailsView id="DetailsView1" runat="server" AutoGenerateRows="false" DataSourceID="myMySqlDataSrc"  DataKeyNames="id" AutoGenerateDeleteButton="True" AutoGenerateEditButton="True" AutoGenerateInsertButton="False" OnDataBound="DetailsView1_DataBound" >
         <Fields>
            <snip>
            <asp:TemplateField HeaderText="Region">
                <ItemTemplate><%# Eval("region_name") %></ItemTemplate>
                <EditItemTemplate>
                    <asp:DropDownList ID="RegionDropdownList" runat="server">

                    </asp:DropDownList>
                </EditItemTemplate>
            </asp:TemplateField>        
         </Fields>
         </asp:DetailsView>

And here's the code behind:

protected void DetailsView1_DataBound(object sender, EventArgs e)
    {
        ArrayList regionsList = BPBusiness.getRegions();

        if (DetailsView1.CurrentMode == DetailsViewMode.Edit)
        {
            DropDownList ddlRegions = (DropDownList)DetailsView1.FindControl("RegionDropdownList");
            if (ddlRegions != null)
            {
                ddlRegions.DataSource = regionsList;
                ddlRegions.DataValueField = "Value";
                ddlRegions.DataTextField = "Text";

                ddlRegions.DataBind();

                if (ddlRegions.Items.Contains(ddlRegions.Items.FindByValue(objBusiness.iRegionID.ToString())))
                {
                    ddlRegions.SelectedIndex = ddlRegions.Items.IndexOf(ddlRegions.Items.FindByValue(objBusiness.iRegionID.ToString()));
                }
            }
        }
    }

EDIT: The database is MySql, and the update statement looks like this:

myMySqlDataSrc.UpdateCommand = "UPDATE myTable SET business_name = ?, addr_line_1 = ?, addr_line_2 = ?, addr_line_3 = ?, postcode = ?, county = ?, town_city = ?, tl_url = ?, customer_id = ?, region_id = ?, description = ?, approval_status = ?, tl_user_name = ?, phone = ?, uploaders_own = ? WHERE id = ?";

Thanks,

Annelie