vb.net窗体切换问题

[◉蚂蚁]

vb.net设计的mobile程序在窗体切换时出现以下问题：
我有两个窗体，form1，form2，form1为主窗体
我用以下方法进行切换
点击form1中的Button切换至form2

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Me.Hide() '隐藏form1窗体
        Form2.Show() '显示form2窗体
    End Sub

点击form2中的Button切换至form1

    Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
             Me.close() 'form2窗体
        form1.Show()'显示form2窗体
    End Sub

先点击从form1切换至form2没什么问题可以正常显示form2，再点击关闭form2显示form1也没什么问题，但是再次点击想显示form2时则显示不出来

这是什么问题啊？
关闭了form2窗体就不能再打开了么？

[bdmh]

Me.close，改成Me.Hide()

[积善成魔]

Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Me.Hide() 'form2窗体
form1.Show()'显示form2窗体
End Sub

close 表示窗口被销毁了。

如果一定要销毁就 改成

Private n1 as new form1
Private n2 as new form2
'----------
sub a
n2.close
n1= new form1
n1.show
end sub

sub b
n1.close
n2= new form2
n2.show
end sub
'----------------------
.net里面FORM销毁后要重新建立一个新对象。跟VB6有些不一样。

[颓废的无房户]

像一楼说的隐藏了就可以

[你们是不是在找BUG]

两种方案，一种就是不要关闭Form2，一种就是new一个新的Form2出来

[StarNight_Miracle]

请教下为什么dispose了一个窗体后可再show出来，而close不行？dispose不是释放的更彻底吗？

[◉蚂蚁]

有没高手指点指点哦！

[积善成魔]

Private Shared SharedForm As Form

Public Shared Sub main()
SharedForm = New Form1
SharedForm.Show()
Application.Run()
End Sub

Private Sub Form1_FormClosed(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosedEventArgs) Handles Me.FormClosed
SharedForm = New Form1
SharedForm.Show()
End Sub

在项目属性里把 应用程序框架的勾去掉

然后启动项设置为 sub main

[紫乐盗]

Me.close() 'form2窗体
form1.Show()'显示form1窗体

在這裡Forn2窗體已關閉了，此時你再次點擊Button1

Me.Hide() '隐藏form1窗体
Form2.Show() '显示form2窗体

並沒有再New一個窗體form2出來。所以它當然顯示不出來了。
两种方案，一种就是不要关闭Form2，一种就是new一个新的Form2出来

[苦苦的潜行者]

学习...

[◉蚂蚁]

[Quote=引用 2 楼 haoting987 的回复:]
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Me.Hide() 'form2窗体
form1.Show()'显示form2窗体
End Sub

close 表示窗口被销毁了。

如果一定要销毁就 改成……
[/Quote]

因为在form2_load()中有代码运行，所以如果Hide的话不再运行form2_load（）
用下面的方法form2显示不出来

[◉蚂蚁]

[Quote=引用 10 楼 haoting987 的回复:]
Private Shared SharedForm As Form

Public Shared Sub main()
SharedForm = New Form1
SharedForm.Show()
Application.Run()
End Sub

Private Sub Form1_FormClosed(ByVal sender As Object,……
[/Quote]

错误 1 没有为“Public Shared Sub Run(fm As System.Windows.Forms.Form)”的参数“fm”指定参数。

[积善成魔]

Private Shared WithEvents SharedForm As Form
Private Shared IsForm1 As Boolean
Public Shared Sub main()
SharedForm = New Form1
SharedForm.Show()
IsForm1 = True
Application.Run(SharedForm)
End Sub

Private Shared Sub NewThreadForm()
IsForm1 = Not IsForm1
Dim i As New Threading.Thread(AddressOf NewForm)
i.Start()
End Sub
Private Shared Sub NewForm()
If IsForm1 Then
SharedForm = New Form1
Else
SharedForm = New Form2
End If
SharedForm.Show()
Application.Run(SharedForm)
End Sub

Private Shared Sub SharedForm_FormClosed(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosedEventArgs) Handles SharedForm.FormClosed
NewThreadForm()
End Sub