如何在按鈕單擊後禁用按鈕3秒，然後再次啓用按鈕

Question

如何在按鈕單擊後禁用按鈕3秒並自行啓用按鈕？ VB.net

我想禁用按鈕3秒，所以用戶不會濫用系統。

Answer 1

如何在按鈕單擊後禁用按鈕3秒並單獨啓用 按鈕？

最簡單的形式：

Private Async Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click 
    Button1.Enabled = False 

    ' ... do something ... 

    Await Task.Delay(3000) 

    Button1.Enabled = True 
End Sub 

如果 「有所作爲」 部分耗時的話，也許更多的東西一樣：

Private Async Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click 
    Button1.Enabled = False 

    Await Task.Run(Sub() 

         ' ... do something ... 

         System.Threading.Thread.Sleep(3000) 
        End Sub) 

    Button1.Enabled = True 
End Sub