G
Guest
I have a DropDownList control in a TemplateField inside my GridView
How do I access this control’s SelectedIndexChanged event in codeBehind
page? I don’t see the ID “DropDownList1†of this control in the list of
objects in odeBehind page.
GridView1 and DropDownList1 are bound to TWO DIFFERENT tables (DataSources).
The last column of each row in the GridView is shown as a DropDownList. I
want to use the SelectedIndexChanged event of DropDownList1 to capture the
valued selected in the dropdown by the user.
Following is the sample code from aspx file:
Thanks,
Nam
<body>
<form id="form1" runat="server">
<div>
<asp:GridView ID="GridView1" runat="server"
AutoGenerateColumns="False" DataKeyNames="filmTypeID"
DataSourceID="SqlDataSource1" CellPadding="4"
ForeColor="#333333" GridLines="None">
<Columns>
<asp:CommandField ShowSelectButton="True" />
<asp:BoundField DataField="filmTypeID"
HeaderText="filmTypeID" InsertVisible="False"
ReadOnly="True" SortExpression="filmTypeID" />
<asp:BoundField DataField="filmType" HeaderText="filmType"
SortExpression="filmType" />
<asp:TemplateField>
<ItemTemplate>
<asp
ropDownList ID="DropDownList1" runat="server"
DataSourceID="SqlDataSource2"
DataTextField="answer" DataValueField="answerID"
Enabled="false"</aspropDownList>
<asp:SqlDataSource ID="SqlDataSource2"
runat="server" ConnectionString="<%$ ConnectionStrings:Northwind %>"
SelectCommand="SELECT CustomerID, CompanyName
FROM Customers">
<SelectParameters>
<asp
arameter DefaultValue="7"
Name="questionID" />
</SelectParameters>
</asp:SqlDataSource>
</ItemTemplate>
</asp:TemplateField>
</Columns>
<FooterStyle BackColor="#5D7B9D" Font-Bold="True"
ForeColor="White" />
<RowStyle BackColor="#F7F6F3" ForeColor="#333333" />
<EditRowStyle BackColor="#999999" />
<SelectedRowStyle BackColor="#E2DED6" Font-Bold="True"
ForeColor="#333333" />
<PagerStyle BackColor="#284775" ForeColor="White"
HorizontalAlign="Center" />
<HeaderStyle BackColor="#5D7B9D" Font-Bold="True"
ForeColor="White" />
<AlternatingRowStyle BackColor="White" ForeColor="#284775" />
</asp:GridView>
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%$ ConnectionStrings:Northwind %>"
SelectCommand="SELECT LastName FROM
Employees"></asp:SqlDataSource>
<br />
<asp:Label ID="Label1" runat="server" Text="test"
Width="160px"></asp:Label></div>
</form>
</body>
How do I access this control’s SelectedIndexChanged event in codeBehind
page? I don’t see the ID “DropDownList1†of this control in the list of
objects in odeBehind page.
GridView1 and DropDownList1 are bound to TWO DIFFERENT tables (DataSources).
The last column of each row in the GridView is shown as a DropDownList. I
want to use the SelectedIndexChanged event of DropDownList1 to capture the
valued selected in the dropdown by the user.
Following is the sample code from aspx file:
Thanks,
Nam
<body>
<form id="form1" runat="server">
<div>
<asp:GridView ID="GridView1" runat="server"
AutoGenerateColumns="False" DataKeyNames="filmTypeID"
DataSourceID="SqlDataSource1" CellPadding="4"
ForeColor="#333333" GridLines="None">
<Columns>
<asp:CommandField ShowSelectButton="True" />
<asp:BoundField DataField="filmTypeID"
HeaderText="filmTypeID" InsertVisible="False"
ReadOnly="True" SortExpression="filmTypeID" />
<asp:BoundField DataField="filmType" HeaderText="filmType"
SortExpression="filmType" />
<asp:TemplateField>
<ItemTemplate>
<asp
ropDownList ID="DropDownList1" runat="server"DataSourceID="SqlDataSource2"
DataTextField="answer" DataValueField="answerID"
Enabled="false"</asp
ropDownList><asp:SqlDataSource ID="SqlDataSource2"
runat="server" ConnectionString="<%$ ConnectionStrings:Northwind %>"
SelectCommand="SELECT CustomerID, CompanyName
FROM Customers">
<SelectParameters>
<asp
arameter DefaultValue="7"Name="questionID" />
</SelectParameters>
</asp:SqlDataSource>
</ItemTemplate>
</asp:TemplateField>
</Columns>
<FooterStyle BackColor="#5D7B9D" Font-Bold="True"
ForeColor="White" />
<RowStyle BackColor="#F7F6F3" ForeColor="#333333" />
<EditRowStyle BackColor="#999999" />
<SelectedRowStyle BackColor="#E2DED6" Font-Bold="True"
ForeColor="#333333" />
<PagerStyle BackColor="#284775" ForeColor="White"
HorizontalAlign="Center" />
<HeaderStyle BackColor="#5D7B9D" Font-Bold="True"
ForeColor="White" />
<AlternatingRowStyle BackColor="White" ForeColor="#284775" />
</asp:GridView>
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%$ ConnectionStrings:Northwind %>"
SelectCommand="SELECT LastName FROM
Employees"></asp:SqlDataSource>
<br />
<asp:Label ID="Label1" runat="server" Text="test"
Width="160px"></asp:Label></div>
</form>
</body>