Question

我使用的所有onClick和Buttons的{{1}}方法都不会在第一次点击时触发，而页面会刷新。按钮在第二次单击时工作正常。

标记：

ImageButtons

VB代码：

<asp:ImageButton ID="yButton" runat="server" Height="56px" Text="" Width="269px" ImageUrl ="https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcRRcyFHSX9PkLkdwxeABW8vxOcm0BXnXuoU6PB_UfeimATDkKz9Zg" style="margin-left: 0px" EnableViewState="false" CausesValidation="false" OnClick ="YesButton_Click"/>

此按钮也会在


Protected Sub YesButton_Click(sender As Object, e As EventArgs) Handles yButton.Click
        MsgBox("yes button clicked" & answer)
        FormStart.answer = 0

    answer = 0
    FormStart.answered.Insert(index, 0)
    Dim form As FormStart
    form = New FormStart()

    GoBackButton.Visible = False
    yButton.Visible = False
    nButton.Visible = False
    labelQ.Visible = False
    Me.Visible = False
    FormStart.index = index
    FormStart.GoBack = False
    FormStart.resumeTest = True
    Server.Execute("FormStart.aspx")
End Sub


Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        If (GoBack) Then
            GoBack = True
            FormStart.GoBack = True
            Dim form As FormStart
            form = New FormStart()
            Me.Visible = False
            FormStart.resumeTest = True
            Server.Execute("FormStart.aspx")
        Else
            FormStart.GoBack = False
            AskQuestion(FormStart.quesList(FormStart.index))
        End If
    End Sub

上显示，如此

    answer = 0
    FormStart.answered.Insert(index, 0)
    Dim form As FormStart
    form = New FormStart()

    GoBackButton.Visible = False
    yButton.Visible = False
    nButton.Visible = False
    labelQ.Visible = False
    Me.Visible = False
    FormStart.index = index
    FormStart.GoBack = False
    FormStart.resumeTest = True
    Server.Execute("FormStart.aspx")
End Sub

OnClick方法不会在第一次单击时触发

0 个答案: