c# - SqlDataSource onSelected 事件未触发

Question

我有一个带有 selectcommand 的 SqlDataSource 控件，它不会触发 onselected 事件(而另一个非常相似，会触发它)。不触发的那个:

<asp:SqlDataSource ID="CommunicationSQLDataSource" runat="server" ConnectionString="<%$ ConnectionStrings:aspnet-WebApplication6-20131007103938ConnectionString1 %>" 
    SelectCommand="SELECT * FROM tCommunication" OnSelected="CommunicationSQLDataSource_Selected">
     <SelectParameters>
        <asp:Parameter Type="String" Name="ProjectID"></asp:Parameter>
    </SelectParameters>
</asp:SqlDataSource>

(开火的那个，仅供引用)

<asp:SqlDataSource ID="DetailsSQLDataSource" runat="server" ConnectionString="<%$ ConnectionStrings:aspnet-WebApplication6-20131007103938ConnectionString1 %>"
    SelectCommand="SELECT [ProjectID], ..." OnSelected="DetailsSQLDataSource_Selected">
    <SelectParameters>
        <asp:Parameter Name="ProjectID" Type="Object" />
    </SelectParameters>
</asp:SqlDataSource>

我看到调试器没有到达 CommunicationSQLDataSource_Selected block ，即使它在控件中被引用也是如此。

Answer 1

确保你在 Form 标签或 asp:Content 中使用它......根据使用的环境

<form id="form1" runat="server">
<asp:SqlDataSource ID="DetailsSQLDataSource" runat="server" ConnectionString="<%$ ConnectionStrings:aspnet-WebApplication6-20131007103938ConnectionString1 %>"
    SelectCommand="SELECT [ProjectID], ..." OnSelected="DetailsSQLDataSource_Selected">
    <SelectParameters>
        <asp:Parameter Name="ProjectID" Type="Object" />
    </SelectParameters>
</asp:SqlDataSource>
  </form>