Question

有没有办法在没有selectedIndexchanged事件触发的情况下设置tabControl的选定选项卡？

e.g。选择myTabPage2时会触发事件，因为myTabPage1是默认值：

Private Sub setupTabControl
    If blnHasAccount=true then
       MyTabControl.selectedTab=myTabPage1
    else
       MyTabControl.selectedTab=myTabPage2
    End if
End sub

Private Sub MyTabControl_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyTabControl.SelectedIndexChanged
    'Do stuff (but only when user has actually changed the tab themselves)
End Sub

Answer 1

设置新标签页时，可以删除事件处理程序

Try
    RemoveHandler MyTabControl.SelectedIndexChanged, AddressOf Me.MyTabControl_SelectedIndexChanged
    .. do your works to change page here
    .. and then reconnect
Finally
    AddHandler MyTabControl.SelectedIndexChanged, AddressOf Me.MyTabControl_SelectedIndexChanged
End Try

将所有内容都包含在Try Finally中以便从异常中正确恢复

非常重要

Answer 2

可以伪造并检查ComboBox.Enabled作为在SelectedIndexChanged事件中使用的标志，同时进行更改，然后在完成后重新设置为true。然而，这些事件仍会触发（如果它们？），但至少可以确保全局'ComboBox'变量的状态。

设置选定的选项卡而不选择selectedIndexChanged事件触发

2 个答案: