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VB.NET WindowsFormsApplicationBase.OpenForms属性代码示例

本文整理汇总了VB.NET中Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.OpenForms属性的典型用法代码示例。如果您正苦于以下问题:VB.NET WindowsFormsApplicationBase.OpenForms属性的具体用法?VB.NET WindowsFormsApplicationBase.OpenForms怎么用?VB.NET WindowsFormsApplicationBase.OpenForms使用的例子?那么, 这里精选的属性代码示例或许可以为您提供帮助。您也可以进一步了解该属性所在Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase的用法示例。


在下文中一共展示了WindowsFormsApplicationBase.OpenForms属性的2个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的VB.NET代码示例。

示例1: GetOpenFormTitles

Private Sub GetOpenFormTitles()
    Dim formTitles As New Collection

    Try
        For Each f As Form In My.Application.OpenForms
            If Not f.InvokeRequired Then
                ' Can access the form directly.
                formTitles.Add(f.Text)
            End If
        Next
    Catch ex As Exception
        formTitles.Add("Error: " & ex.Message)
    End Try

    Form1.ListBox1.DataSource = formTitles
End Sub
开发者ID:VB.NET开发者,项目名称:Microsoft.VisualBasic.ApplicationServices,代码行数:16,代码来源:WindowsFormsApplicationBase.OpenForms

示例2: GetOpenFormTitles

Private Sub GetOpenFormTitles()
    Dim formTitles As New Collection

    Try
        For Each f As Form In My.Application.OpenForms
            ' Use a thread-safe method to get all form titles.
            formTitles.Add(GetFormTitle(f))
        Next
    Catch ex As Exception
        formTitles.Add("Error: " & ex.Message)
    End Try

    Form1.ListBox1.DataSource = formTitles
End Sub

Private Delegate Function GetFormTitleDelegate(f As Form) As String
Private Function GetFormTitle(f As Form) As String
    ' Check if the form can be accessed from the current thread.
    If Not f.InvokeRequired Then
        ' Access the form directly.
        Return f.Text
    Else
        ' Marshal to the thread that owns the form. 
        Dim del As GetFormTitleDelegate = AddressOf GetFormTitle
        Dim param As Object() = {f}
        Dim result As System.IAsyncResult = f.BeginInvoke(del, param)
        ' Give the form's thread a chance process function.
        System.Threading.Thread.Sleep(10)
        ' Check the result.
        If result.IsCompleted Then
            ' Get the function's return value.
            Return "Different thread: " & f.EndInvoke(result).ToString
        Else
            Return "Unresponsive thread"
        End If
    End If
End Function
开发者ID:VB.NET开发者,项目名称:Microsoft.VisualBasic.ApplicationServices,代码行数:37,代码来源:WindowsFormsApplicationBase.OpenForms


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