Question

下面是我的aspx页面中的代码。我已经声明了一个名为connect的aspx变量。我想在属性ConnectionString中的SqlDataSource控件中传递它，但是，我在页面中收到错误，指出关键字不受支持：'＆lt;％'

<%
    Dim environmentText = Environment.GetEnvironmentVariable("ENVIRONMENT")
    Dim connString As String = "GymsConnectionString"

    If Not String.IsNullOrEmpty(environmentText) Then 
        environmentText = environmentText.ToLower().Trim()
        connString = String.Format("GymsConnectionString_{0}", environmentText)
    End If 

    Dim connect As String = ConfigurationManager.ConnectionStrings(connString).ToString()
%>

<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%
    =connect %>"
        SelectCommand="SELECT * FROM [Table1] WHERE ([ColumnID] = @ColumnID)">
        <SelectParameters>
            <asp:SessionParameter Name="Column_ID" Type="Int32" />
        </SelectParameters>
</asp:SqlDataSource>

Answer 1

直接设置它。无需使用标记来嵌入它。

SqlDataSource1.ConnectionString = connect

Answer 2

我有它的工作。

在aspx页面中，我删除了ConnectionString属性，并在aspx页面中删除了下面的代码块：

Dim environmentText = Environment.GetEnvironmentVariable（“ENVIRONMENT”） Dim connString As String =“GymsConnectionString”

If Not String.IsNullOrEmpty(environmentText) Then 
    environmentText = environmentText.ToLower().Trim()
    connString = String.Format("GymsConnectionString_{0}", environmentText)
End If 

Dim connect As String = ConfigurationManager.ConnectionStrings(connString).ToString()

然后在后面的代码中，我在Page load：

中设置控制连接字符串

Protected Sub Page_Load(sender As Object, e As EventArgs) Handles Me.Load
    Dim environmentText = Environment.GetEnvironmentVariable("ENVIRONMENT")
    Dim connString As String = "GymsConnectionString"

    If Not String.IsNullOrEmpty(environmentText) Then 
        environmentText = environmentText.ToLower().Trim()
        connString = String.Format("GymsConnectionString_{0}", environmentText)
    End If 

    Dim connect As String = ConfigurationManager.ConnectionStrings(connString).ToString()

    SqlDataSource1.ConnectionString=connect
    SqlDataSource2.ConnectionString=connect

在ASPX页面中访问ASPX变量

2 个答案: