Question

vb.net中 点击按钮时 触发窗体paint事件

如题
Private Sub Label3_Paint(sender As Object, e As PaintEventArgs) Handles Label3.Paint
Dim pen1 As New Pen(Brushes.DeepSkyBlue, 2)
e.Graphics.DrawLine(pen1, 0, 0, 0, Label3.Height)
e.Graphics.DrawLine(pen1, 0, 0, Label3.Width, 0)
e.Graphics.DrawLine(pen1, Label3.Width, 0, Label3.Width - 1, Label3.Height)
e.Graphics.DrawLine(pen1, 0, Label3.Height, Label3.Width, Label3.Height - 1)
pen1.Dispose()
End Sub

Answer 1

触发窗体paint事件按钮中加入Me.Refresh()代码

Answer 2

你这个是label3的paint事件，和按钮，和窗体没太大关系呀

Answer 3

label3.Refresh