.Net 中的 ShowDialog [英] ShowDialog in .Net

问题描述

我知道你应该总是在模态表单上调用 dispose .不过，我有一个相关的问题.

I know that you should always call dispose on modal forms. However, I have a related question.

如果我的应用程序中有一个方法，例如

If I have a method in my application like

Private Sub tempMethod

Dim expForm as new ExplorerForm(tempDataTable)
expForm.ShowDialog

'Should I call dispose here?
'or would the form be automatically disposed when it goes out of scope
'after this method exits?

End Sub

推荐答案

当表单超出范围时，它会在未来的某个时刻被垃圾回收，然后会调用 Dispose，但最好使用 Using本例中的关键字:

When the form goes out of scope, it will be garbage collected at some point in the future and Dispose will be called then, but it's better to use the Using keyword in this instance:

Private Sub tempMethod
    Using expForm As New ExplorerForm(tempDataTable)
        expForm.ShowDialog()

        'Other code here
    End Using      'Form disposed here
End Sub

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