vb.net 如何关闭子窗体
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How to close the child form
提问by Gopal
Using MDI and Child Forms
使用 MDI 和子窗体
Code.
代码。
childform_load
Me.MdiParent = MDIMain
'
'
Private Sub form1_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles Me.KeyDown
If e.KeyCode = Keys.Escape Then
Me.Close()
End If
End Sub
The above code is working for MDI Form (form name is mdiform1), but not working for child form1, when I press the escape key, it is closing the MDI Form instead of Child form.
上面的代码适用于 MDI 窗体（窗体名称为 mdiform1），但不适用于子窗体 1，当我按下退出键时，它正在关闭 MDI 窗体而不是子窗体。
I check the Child Form Name also, name is form1 only.
我还检查了子表单名称，名称仅为 form1。
What was the problem, i need to change any property of child form.
有什么问题，我需要更改子表单的任何属性。
Need code help
需要代码帮助
回答by Developer
This works for me
这对我有用
Private Sub Form1_KeyDown(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles MyBase.KeyDown
If e.KeyCode = Keys.Escape Then
For Each child As Form In Me.MdiParent.MdiChildren
child.Close()
Next child
End If
End Sub
回答by Ahmed Shafik
It seems to be because of the (Key preview) property of the forms.So try to set Key preview False in MDIMain form, And set it true in the child form.
这似乎是因为表单的 (Key preview) 属性。所以尽量在MDIMain表单中设置Key preview False，在子表单中设置为true。
回答by andy
Whenever your trying to fire the Child form event its firing the parent form "form1_KeyDown" event.
每当您尝试触发子表单事件时，它都会触发父表单“form1_KeyDown”事件。
