私有共享功能中的下拉列表值 [英] dropdown list value in private shared function

问题描述

我在网页上有一个下拉列表，要在私有共享功能中获取期望值，怎么可能
预先感谢

I have a dropdown list on webpage and to get delected value in private shared function how is it possible
thanx in advance

Private Shared Function GetConnectionString() As String
      
        Dim connString As String = "Integrated Security=SSPI;" + "Initial Catalog=" & dropdownlist1.SelectedValue & ";" + "Data Source=den;" + "Integrated Security=True;" + "Pooling=False;"

        GetConnectionString = connString
End Function

推荐答案

我认为您无法做到这一点.共享(在C#中为静态)函数只能访问共享成员.

I don''t think you can do this. Shared (static in C#) functions can only access shared members.

这将行不通.您必须重写GetConnectionString函数以接受参数，然后从调用代码中传入所选的值.

This is not going to work. You''ll have to rewrite your GetConnectionString function to accept a parameter then pass in the selected value from your calling code.

我解决了它.

共享的str作为字符串
私有共享函数GetConnectionString()作为字符串
Dim connString As String =集成安全性= SSPI;"； +初始目录='''' & Str& "'';" +"数据源= den;" +集成安全性= True；"； +" Pooling = False;"
返回connString

最终功能
受保护的子DropDownList1_SelectedIndexChanged(ByVal发送者作为对象，ByVal e作为System.EventArgs)处理DropDownList1.SelectedIndexChanged
str = DropDownList1.SelectedItem.ToString()
str =集成安全性= SSPI；"； +初始目录='''' & Str& "'';" +"数据源= den;" +集成安全性= True；"； +" Pooling = False;"

结束Sub

i solved it.

Shared str As String
Private Shared Function GetConnectionString() As String
Dim connString As String = "Integrated Security=SSPI;" + "Initial Catalog=''" & str & "'';" + "Data Source=den;" + "Integrated Security=True;" + "Pooling=False;"
Return connString

End Function
Protected Sub DropDownList1_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles DropDownList1.SelectedIndexChanged
str = DropDownList1.SelectedItem.ToString()
str = "Integrated Security=SSPI;" + "Initial Catalog=''" & str & "'';" + "Data Source=den;" + "Integrated Security=True;" + "Pooling=False;"

End Sub

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