sql数据源曾经在Visual Studio 2005中工作，但现在不在2010年工作

Question

I have a sql data source declared on an aspx page which worked fine in Visual Studio 2005, but since migrating to Visual Studio 2010 the DefaultValue parameter is not evaluating the specified function and or the value passed in from a property in the code behind. When checked in SQL Query Analyser the code passed to the database is just using the DafaultValue as a literal string. How can I rectify this?

<!--sql data source-->
<asp:SqlDataSource id="sdsltblCNS_SECOND_REF" runat="server" ConnectionString="<%$ ConnectionStrings:SCRConnectionString %>"
    SelectCommand="Sel_CNS_SECOND_REFByCASite" SelectCommandType="StoredProcedure">
    <SelectParameters>
        <asp:Parameter DefaultValue='<%= Common.GetSiteName(Me.SelectedSite) %>' Name="CASite" ConvertEmptyStringToNull="true" Type="String" />
    </SelectParameters>
</asp:SqlDataSource>

' SelectedSite property
Public ReadOnly Property SelectedSite As Site
    Get
        If ViewState("SelectedSite") Is Nothing Then
            ViewState("SelectedSite") = Common.GetSiteByCareID(CareID)
        End If
        Return ViewState("SelectedSite")
    End Get
End Property

-- query analyser
exec Sel_CNS_SECOND_REFByCASite @CASite=N'<%= Common.GetSiteName(Me.SelectedSite) %>'

Answer 1

也许我说的是显而易见的内容，并且遗漏了更深的内容（这已经是漫长的一天），但是您不应该使用引号而不是单个刻度，例如：

<asp:Parameter DefaultValue="<%= Common.GetSiteName(Me.SelectedSite) %>" Name="CASite" ConvertEmptyStringToNull="true" Type="String" />