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Old October 24th, 2007, 01:07 PM
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Default Set selected value in GridView dropdownlist

I have a column in GridView which has a dropdown list in its Edit Template. I have set the data source as below. When the Gridview is displayed in ItemTemplate, 'Canada' is selected as the country. When I click the edit button, the Country display changes to a dropdown list but the selected Country is not 'Canada' but the first value in the datasource.

Is there a way to set the selected value in EditItemTemplate so that its value in dropdown list matches the value originally displayed in the ItemTemplate.



        <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="CustomerID"
            DataSourceID="SqlDataSource1" AllowPaging="True" OnRowDataBound="GridView1_RowDataBound" OnRowUpdating="GridView1_RowUpdating">
            <Columns>
                <asp:CommandField ShowEditButton="True" />
                <asp:BoundField DataField="CustomerID" HeaderText="CustomerID" ReadOnly="True" SortExpression="CustomerID" />
                <asp:BoundField DataField="CompanyName" HeaderText="CompanyName" SortExpression="CompanyName" />
                <asp:BoundField DataField="ContactName" HeaderText="ContactName" SortExpression="ContactName" />
                <asp:BoundField DataField="ContactTitle" HeaderText="ContactTitle" SortExpression="ContactTitle" />
                <asp:BoundField DataField="Address" HeaderText="Address" SortExpression="Address" />
                <asp:BoundField DataField="City" HeaderText="City" SortExpression="City" />
                <asp:BoundField DataField="Region" HeaderText="Region" SortExpression="Region" />
                <asp:BoundField DataField="PostalCode" HeaderText="PostalCode" SortExpression="PostalCode" />
                <asp:TemplateField HeaderText="Country" SortExpression="Country">
                    <EditItemTemplate>
                        <asp:DropDownList ID="DropDownList1" runat="server" DataSourceID="SqlDataSource2" DataTextField="Country" DataValueField="Country">
                        </asp:DropDownList>
                    </EditItemTemplate>
                    <ItemTemplate>
                        <asp:Label ID="Label1" runat="server" Text='<%# Eval("Country") %>'></asp:Label>
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:BoundField DataField="Phone" HeaderText="Phone" SortExpression="Phone" />
                <asp:BoundField DataField="Fax" HeaderText="Fax" SortExpression="Fax" />
            </Columns>
        </asp:GridView>
 
Old October 24th, 2007, 01:18 PM
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Default

hmm. Handle your SelectedIndexChanged event and something like this should work:

//Bind the grid then
Label lb = (Label)GridView1.SelectedRow.Cells[9].Controls[0];

lb.Text will now contain 'Canada' so now you can do something like:
ddl.SelectedValue = lb.Text;

hth.

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