將Visual Web Developer Express 2010與ASP.NET 4.0結合使用。如何在FormView控件的EditItemTemplate中綁定dropdownlist?
我有一個FormView,我想從數據庫中設置一個默認值。我無法將它綁定到數據庫中的值。我FormView控件看起來是這樣的:
<asp:FormView
ID="frmOrderDetails"
DataSourceID="sdsFormOrderDetails"
runat="server"
DataKeyNames="orderId">
<EditItemTemplate>
<h3>Edit Order Details</h3>
<asp:Label ID="lblStrategy" Text="Strategy:" AssociatedControlID="ddlStrategies" runat="server" />
<asp:DropDownList SelectedValue='<%# Bind("strategyId") %>'
ID="ddlStrategies"
runat="server"
DataTextField="strategy"
DataValueField="strategyId"
DataSourceID="sdsStrategies"
/>
<asp:LinkButton
id="lnkUpdate"
Text="Update Order"
CommandName="Update"
Runat="server" />
|
<asp:LinkButton
id="lnkCancel"
Text="Cancel"
CommandName="Cancel"
Runat="server" />
</EditItemTemplate>
</asp:FormView>
<asp:SqlDataSource ID="sdsFormOrderDetails" runat="server"
ConnectionString="<%$ ConnectionStrings:LocalSQLServer %>"
ProviderName="<%$ ConnectionStrings:LocalSQLServer.ProviderName %>"
SelectCommand="usp_GetOrderDetails" SelectCommandType="StoredProcedure"
UpdateCommand="usp_UpdateOrder" UpdateCommandType="StoredProcedure">
<SelectParameters>
<asp:ControlParameter Name="orderId" ControlID="grdOrders" PropertyName="SelectedDataKey.Value" />
</SelectParameters>
<UpdateParameters>
<asp:ControlParameter Name="orderId" ControlID="grdOrders" />
</UpdateParameters>
</asp:SqlDataSource>
<asp:SqlDataSource ID="sdsStrategies" runat="server"
ConnectionString="<%$ ConnectionStrings:LocalSQLServer %>"
ProviderName="<%$ ConnectionStrings:LocalSQLServer.ProviderName %>"
SelectCommand="usp_GetStrategiesDropDown">
</asp:SqlDataSource>
的EditItemTemplate裏,當我點擊我的FormView控件的編輯按鈕甚至不加載,但我也不得到一個錯誤信息。
感謝您的答覆。有沒有辦法做到這一點,而不使用代碼? – 2010-08-11 13:08:49
nop,這就是我告訴過你的,否則SelectedValue ='<%#綁定(「strategyId」)%>'這個方法會在綁定同一個源的特定值時起作用 – 2010-08-11 13:17:10
好的,謝謝。我如何獲得DB值?我只想在點擊Edit按鈕之前顯示在ItemTemplate中的當前strategyId。我對ASP.NET很陌生 - 感謝任何幫助。 – 2010-08-11 13:34:47