vb6 – 输入框取消

Private Sub Form_Load()
fsUserName = UCase(InputBox("Please Enter your name.", "User Name", _
"dc"))

If fsUserName = "" Then
MsgBox "No name Entered." & Chr(13) & Chr(13) & _
"You must enter a name.", vbExclamation, "ERROR"
Form_Load
ElseIf VarType(fsUserName) = 0 Then 'If cancel clicked
cmdQuit_Click

End If

还有一种方法,当单击表单上的X按钮时,它执行cmdQuit_Click,这样如果用户单击命令按钮Quit或X,则运行Quit脚本.在退出脚本中有消息框和清理.

Dim fsUserName As String

fsUserName = InputBox("Please Enter your name.", "User Name", "dc")

If (StrPtr(fsUserName) = 0&) Then
    MsgBox "Cancelled or X clicked"
ElseIf fsUserName = "" Then
    MsgBox "No name Entered." & vbCr & "You must enter a name.", vbExclamation, "ERROR"
Else
    fsUserName = UCase$(fsUserName)
    MsgBox fsUserName
End If

如果要在表单卸载时执行某些操作,可以使用Form_Unload事件或更好的Form_QueryUnload事件,该事件在实际卸载之前触发.允许你取消它.
它还会告诉您表单卸载的原因(如果单击红色X,则UnloadMode将为0)

使用“卸载我”将引发两个事件.

编辑：在Form_Load中调用Form_Load会最终填满堆栈,最好使用循环来查找缺少的用户名.