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VB.NET ContainerControl.ActiveControl属性代码示例

本文整理汇总了VB.NET中System.Windows.Forms.ContainerControl.ActiveControl属性的典型用法代码示例。如果您正苦于以下问题:VB.NET ContainerControl.ActiveControl属性的具体用法?VB.NET ContainerControl.ActiveControl怎么用?VB.NET ContainerControl.ActiveControl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。


在下文中一共展示了ContainerControl.ActiveControl属性的1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: New

' 导入命名空间
Imports System.Windows.Forms
Imports System.Drawing

   Public Class MyContainerControl
      Inherits ScrollableControl
      Implements IContainerControl 

      Private myActiveControl As Control
      
      Public Sub New()
         ' Make the container control Blue so it can be distinguished on the form.
         Me.BackColor = Color.Blue
         
         ' Make the container scrollable.
         Me.AutoScroll = True
      End Sub 
      
      ' Add implementation to the IContainerControl.ActiveControl property.
      Public Property ActiveControl() As Control Implements IContainerControl.ActiveControl
         Get
            Return Me.myActiveControl
         End Get
         
         Set
            ' Make sure the control is a member of the ControlCollection.
            If Me.Controls.Contains(value) Then
               Me.myActiveControl = value
            End If
         End Set
      End Property
      
      ' Add implementation to the IContainerControl.ActivateControl(Control) method.
      public Function ActivateControl(active As Control) As Boolean Implements IContainerControl.ActivateControl
         If Me.Controls.Contains(active) Then
            ' Select the control and scroll the control into view if needed.
            active.Select()
            Me.ScrollControlIntoView(active)
            Me.myActiveControl = active
            Return True
         End If
         Return False
      End Function 

   End Class
开发者ID:VB.NET开发者,项目名称:System.Windows.Forms,代码行数:45,代码来源:ContainerControl.ActiveControl


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