Question

   Public Sub DropDownList1_SelectedIndexChanged(sender As Object, e As EventArgs) Handles DropDownList1.SelectedIndexChanged
    Dim comboIndex As Integer
    MsgBox(DropDownList1.SelectedIndex)

    Dim ddl As DropDownList = Master.FindControl("cmbCulture")
    comboIndex = DropDownList1.SelectedIndex
    If ddl.SelectedIndex >= 0 Then
        'comboIndex = ddl.SelectedValue
    End If
    MsgBox(DropDownList1.SelectedIndex)

    comboIndex = ComboBox1.SelectedIndex

    Dim sqlQuery As String
    If comboIndex = 1 Then sqlQuery = "SELECT * FROM scale WHERE scaleName = 'Major'"
    If comboIndex = 0 Then sqlQuery = "SELECT * FROM scale WHERE scaleName = 'Dominant7'"
    sqlQuery = "SELECT * FROM scale"

我需要知道我从我的内容页面触发了我的母版页上的下拉列表的selectedvaluechanged事件（默认）。我在代码中放了一个消息框，所以我知道它已经到了那里，但我无法解决它。有谁知道怎么做？

Answer 1

好的，之前我已经完成了，你可以做的是将方法公之于众，然后在内容页面中调用master的实例并调用你需要的方法。这篇文章应该对你有帮助 http://geekswithblogs.net/diadiora/archive/2008/12/01/call-a-method-from-masterpage-in-content-page.aspx

然后在VB.NET中看起来像在内容页面

Dim master As SiteMaster = DirectCast(Page.Master, SiteMaster)
master.Method1()

主页中的

Public Sub Method1()

    End Sub

从内容页面上的母版页触发selectedindexchanged事件

1 个答案: