本文整理汇总了VB.NET中System.Windows.Forms.Design.ControlDesigner类的典型用法代码示例。如果您正苦于以下问题:VB.NET ControlDesigner类的具体用法?VB.NET ControlDesigner怎么用?VB.NET ControlDesigner使用的例子?那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了ControlDesigner类的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.ComponentModel
Imports System.ComponentModel.Design
Imports System.Collections
Imports System.Drawing
Imports System.Windows.Forms
Imports System.Windows.Forms.Design
Namespace ControlDesignerExample
_
' ExampleControlDesigner is an example control designer that
' demonstrates basic functions of a ControlDesigner.
<System.Security.Permissions.PermissionSetAttribute(System.Security.Permissions.SecurityAction.Demand, Name:="FullTrust")> _
Public Class ExampleControlDesigner
Inherits System.Windows.Forms.Design.ControlDesigner
' This boolean state reflects whether the mouse is over the control.
Private mouseover As Boolean = False
' This color is a private field for the OutlineColor property.
Private lineColor As Color = Color.White
' This color is used to outline the control when the mouse is
' over the control.
Public Property OutlineColor() As Color
Get
Return lineColor
End Get
Set(ByVal Value As Color)
lineColor = Value
End Set
End Property
Public Sub New()
End Sub
' Sets a value and refreshes the control's display when the
' mouse position enters the area of the control.
Protected Overrides Sub OnMouseEnter()
Me.mouseover = True
Me.Control.Refresh()
End Sub
' Sets a value and refreshes the control's display when the
' mouse position enters the area of the control.
Protected Overrides Sub OnMouseLeave()
Me.mouseover = False
Me.Control.Refresh()
End Sub
' Draws an outline around the control when the mouse is
' over the control.
Protected Overrides Sub OnPaintAdornments(ByVal pe As System.Windows.Forms.PaintEventArgs)
If Me.mouseover Then
pe.Graphics.DrawRectangle(New Pen(New SolidBrush(Me.lineColor), 6), 0, 0, Me.Control.Size.Width, Me.Control.Size.Height)
End If
End Sub
' Adds a property to this designer's control at design time
' that indicates the outline color to use.
' The DesignOnlyAttribute ensures that the OutlineColor
' property is not serialized by the designer.
Protected Overrides Sub PreFilterProperties(ByVal properties As System.Collections.IDictionary)
Dim pd As PropertyDescriptor = TypeDescriptor.CreateProperty( _
GetType(ExampleControlDesigner), _
"OutlineColor", _
GetType(System.Drawing.Color), _
New Attribute() {New DesignOnlyAttribute(True)})
properties.Add("OutlineColor", pd)
End Sub
End Class
' This example control demonstrates the ExampleControlDesigner.
<DesignerAttribute(GetType(ExampleControlDesigner))> _
Public Class ExampleControl
Inherits System.Windows.Forms.UserControl
Private components As System.ComponentModel.Container = Nothing
Public Sub New()
components = New System.ComponentModel.Container()
End Sub
Protected Overloads Sub Dispose(ByVal disposing As Boolean)
If disposing Then
If (components IsNot Nothing) Then
components.Dispose()
End If
End If
MyBase.Dispose(disposing)
End Sub
End Class
End Namespace