更改包含的单选按钮中的一个小圆圈(点)的颜色是红色? [英] Change the color of a small circle (dot) contained within the radio button to be red?
问题描述
如何更改包含的单选按钮中的一个小圆圈(点)的颜色是红色的WinForm的应用程序中使用VB.NET或C#?
&方面放大器;谢谢,
黛维
============================ ==============================结果
我将分享,可能是对别人有用。这个程序的工作原理。
进口System.Drawing.Drawing2D
类公共Form1的
酒店的公共类MyRadioButton
继承单选
私人m_OnColor至于颜色
私人m_OffColor至于颜色
的Public Sub New(BYVAL On_Color颜色,BYVAL Off_Color作为彩色)
m_OnColor = On_Color
m_OffColor = Off_Color
的SetStyle(ControlStyles.SupportsTransparentBackColor,真)
=背景色Color.Transparent
端子
酒店的公共属性的OnColor()作为颜色
得到
返回m_OnColor
端获取
组(BYVAL值作为颜色)
m_OnColor =价值
端设置
高端物业
$ b)$ b公共财产OffColor(如颜色
得到
返回m_OffColor
端获取
组(BYVAL值作为彩色)
m_OffColor =价值
端设置
高端物业
受保护的覆盖子的OnPaint(BYVALË作为PaintEventArgs)
MyBase.OnPaint(五)
尺寸摹作为图形= e.Graphics
g.SmoothingMode = SmoothingMode.AntiAlias
昏暗dotDiameter为整数= ClientRectangle.Height - 17
昏暗innerRect作为新的RectangleF(1.8F,7.8F,dotDiameter,dotDiameter)
。如果Me.Checked然后
g.FillEllipse(新SolidBrush(的OnColor),innerRect)
,否则
g.FillEllipse(新SolidBrush(OffColor),innerRect)
端如果
g.DrawString(文字,字体,新SolidBrush(前景色),dotDiameter + 17,1)
结束小组
端类
尺寸objRadio作为新MyRadioButton(Color.Blue,Color.Red)
私人小组Form1_Load的( BYVAL发件人为System.Object的,BYVAL E上System.EventArgs)把手MyBase.Load
objRadio.Location =新点(100,100)
objRadio.Visible = TRUE
Me.Controls。添加(objRadio)
端子
私人小组的button1_Click(BYVAL发件人为System.Object的,BYVAL E上System.EventArgs)把手Button1.Click
如果objRadio.Checked然后
objRadio.Checked =假
,否则
objRadio.Checked = TRUE
端如果
端子
端类
的这里的所有者列表框绘制模拟,你可以使用你的单选按钮列表的例子的WinForms 。希望
编辑:的这里是一个更深入的WinForms自定义控件的例子。
How do I change the color of a small circle (dot) contained within the radio button to be red in Winform Application use VB.NET or C#?
Regard & Thanks, Dewi
==========================================================
I will share, may be useful to others. This program works.
Imports System.Drawing.Drawing2D
Public Class Form1
Public Class MyRadioButton
Inherits RadioButton
Private m_OnColor As Color
Private m_OffColor As Color
Public Sub New(ByVal On_Color As Color, ByVal Off_Color As Color)
m_OnColor = On_Color
m_OffColor = Off_Color
SetStyle(ControlStyles.SupportsTransparentBackColor, True)
BackColor = Color.Transparent
End Sub
Public Property OnColor() As Color
Get
Return m_OnColor
End Get
Set(ByVal value As Color)
m_OnColor = value
End Set
End Property
Public Property OffColor() As Color
Get
Return m_OffColor
End Get
Set(ByVal value As Color)
m_OffColor = value
End Set
End Property
Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs)
MyBase.OnPaint(e)
Dim g As Graphics = e.Graphics
g.SmoothingMode = SmoothingMode.AntiAlias
Dim dotDiameter As Integer = ClientRectangle.Height - 17
Dim innerRect As New RectangleF(1.8F, 7.8F, dotDiameter, dotDiameter)
If Me.Checked Then
g.FillEllipse(New SolidBrush(OnColor), innerRect)
Else
g.FillEllipse(New SolidBrush(OffColor), innerRect)
End If
g.DrawString(Text, Font, New SolidBrush(ForeColor), dotDiameter + 17, 1)
End Sub
End Class
Dim objRadio As New MyRadioButton(Color.Blue, Color.Red)
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
objRadio.Location = New Point(100, 100)
objRadio.Visible = True
Me.Controls.Add(objRadio)
End Sub
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If objRadio.Checked Then
objRadio.Checked = False
Else
objRadio.Checked = True
End If
End Sub
End Class
Here's a winforms example of an owner drawn listbox simulating a list of radiobuttons that you could use for what you want.
Edit: Here is a more in-depth Winforms custom control example.
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