---MDI窗體和多窗體編程--- 目的:在MDI窗體內用ToolBar實現多窗體的實例,在VB.NET中顯示窗體一般代碼如下
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Private
Sub
ToolBar1_ButtonClick(
ByVal
sender
As
System.
Object
,
ByVal
e
As
System.Windows.Forms.ToolBarButtonClickEventArgs)
Handles
ToolBar1.ButtonClick
Select Case e.Button.Text
Case " OK " ' "OK" is ToolBarButton.Text
Dim fr As New frmName
fr.MdiParent = Me ' Me is MdiForm
fr.Show()
End Select
End Sub
Select Case e.Button.Text
Case " OK " ' "OK" is ToolBarButton.Text
Dim fr As New frmName
fr.MdiParent = Me ' Me is MdiForm
fr.Show()
End Select
End Sub
http://www.chinaaspx.com/club/topic_5_7796.htm
參考了一下,得出下面的代碼
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這樣就實例了一次窗體~ ---end---
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Private Shared fr As New frmName
Private Sub ToolBar1_ButtonClick( ByVal sender As System. Object , ByVal e As System.Windows.Forms.ToolBarButtonClickEventArgs) Handles ToolBar1.ButtonClick
Select Case e.Button.Text
Case " OK " ' "OK" is ToolBarButton.Text
If fr Is Nothing Or fr.IsDisposed Then
fr = New frmName
fr.MdiParent = Me
fr.Show()
Else
fr.MdiParent = Me
fr.Show()
fr.Focus()
End If
End Select
End Sub
Private Shared fr As New frmName
Private Sub ToolBar1_ButtonClick( ByVal sender As System. Object , ByVal e As System.Windows.Forms.ToolBarButtonClickEventArgs) Handles ToolBar1.ButtonClick
Select Case e.Button.Text
Case " OK " ' "OK" is ToolBarButton.Text
If fr Is Nothing Or fr.IsDisposed Then
fr = New frmName
fr.MdiParent = Me
fr.Show()
Else
fr.MdiParent = Me
fr.Show()
fr.Focus()
End If
End Select
End Sub
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