C# 如何对 Windows 窗体单选按钮进行分组？
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/2178240/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
How do I group Windows Form radio buttons?
提问by MW.
How can I group the radio buttons in Windows Form application (a lot like ASP.NET's radiobuttonlist!)?
如何在 Windows 窗体应用程序中对单选按钮进行分组（很像 ASP.NET 的单选按钮列表！）？
So I can switch between each case chosen from the options.
所以我可以在从选项中选择的每个案例之间切换。
采纳答案by Steve Danner
Put all radio buttons for a group in a container object like a Panelor a GroupBox. That will automatically group them together in Windows Forms.
将一个组的所有单选按钮放在一个容器对象中，如 aPanel或 a GroupBox。这将在 Windows 窗体中自动将它们组合在一起。
回答by AJ.
Look at placing your radio buttons in a GroupBox.
看看将您的单选按钮放在GroupBox 中。
回答by Nikos Steiakakis
You should place all the radio buttons of the group inside the same container such as a GroupBox or Panel.
您应该将组的所有单选按钮放在同一个容器中，例如 GroupBox 或 Panel。
回答by Elshan
GroupBoxis better.But not only group box, even you can use Panels(System.Windows.Forms.Panel).
GroupBox更好。但不仅是分组框，甚至您还可以使用Panels（System.Windows.Forms.Panel）。
- That is very usefully when you are designing Internet Protocol version 4 setting dialog.(Check it with your pc(windows),then you can understand the behavior)
- 这在您设计 Internet 协议版本 4 设置对话框时非常有用。（用您的电脑（Windows）检查它，然后您就可以了解其行为）
回答by pr0gg3r
I like the concept of grouping RadioButtons in WPF. There is a property GroupNamethat specifies which RadioButton controls are mutually exclusive (http://msdn.microsoft.com/de-de/library/system.windows.controls.radiobutton.aspx).
我喜欢在 WPF 中对 RadioButtons 进行分组的概念。有一个属性GroupName指定哪些 RadioButton 控件是互斥的 ( http://msdn.microsoft.com/de-de/library/system.windows.controls.radiobutton.aspx)。
So I wrote a derived class for WinForms that supports this feature:
所以我为支持这个特性的WinForms写了一个派生类：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Diagnostics;
using System.Windows.Forms.VisualStyles;
using System.Drawing;
using System.ComponentModel;
namespace Use.your.own
{
public class AdvancedRadioButton : CheckBox
{
public enum Level { Parent, Form };
[Category("AdvancedRadioButton"),
Description("Gets or sets the level that specifies which RadioButton controls are affected."),
DefaultValue(Level.Parent)]
public Level GroupNameLevel { get; set; }
[Category("AdvancedRadioButton"),
Description("Gets or sets the name that specifies which RadioButton controls are mutually exclusive.")]
public string GroupName { get; set; }
protected override void OnCheckedChanged(EventArgs e)
{
base.OnCheckedChanged(e);
if (Checked)
{
var arbControls = (dynamic)null;
switch (GroupNameLevel)
{
case Level.Parent:
if (this.Parent != null)
arbControls = GetAll(this.Parent, typeof(AdvancedRadioButton));
break;
case Level.Form:
Form form = this.FindForm();
if (form != null)
arbControls = GetAll(this.FindForm(), typeof(AdvancedRadioButton));
break;
}
if (arbControls != null)
foreach (Control control in arbControls)
if (control != this &&
(control as AdvancedRadioButton).GroupName == this.GroupName)
(control as AdvancedRadioButton).Checked = false;
}
}
protected override void OnClick(EventArgs e)
{
if (!Checked)
base.OnClick(e);
}
protected override void OnPaint(PaintEventArgs pevent)
{
CheckBoxRenderer.DrawParentBackground(pevent.Graphics, pevent.ClipRectangle, this);
RadioButtonState radioButtonState;
if (Checked)
{
radioButtonState = RadioButtonState.CheckedNormal;
if (Focused)
radioButtonState = RadioButtonState.CheckedHot;
if (!Enabled)
radioButtonState = RadioButtonState.CheckedDisabled;
}
else
{
radioButtonState = RadioButtonState.UncheckedNormal;
if (Focused)
radioButtonState = RadioButtonState.UncheckedHot;
if (!Enabled)
radioButtonState = RadioButtonState.UncheckedDisabled;
}
Size glyphSize = RadioButtonRenderer.GetGlyphSize(pevent.Graphics, radioButtonState);
Rectangle rect = pevent.ClipRectangle;
rect.Width -= glyphSize.Width;
rect.Location = new Point(rect.Left + glyphSize.Width, rect.Top);
RadioButtonRenderer.DrawRadioButton(pevent.Graphics, new System.Drawing.Point(0, rect.Height / 2 - glyphSize.Height / 2), rect, this.Text, this.Font, this.Focused, radioButtonState);
}
private IEnumerable<Control> GetAll(Control control, Type type)
{
var controls = control.Controls.Cast<Control>();
return controls.SelectMany(ctrl => GetAll(ctrl, type))
.Concat(controls)
.Where(c => c.GetType() == type);
}
}
}
回答by Suat Erenler
Radio button without panel
没有面板的单选按钮
public class RadioButton2 : RadioButton
{
public string GroupName { get; set; }
}
private void RadioButton2_Clicked(object sender, EventArgs e)
{
RadioButton2 rb = (sender as RadioButton2);
if (!rb.Checked)
{
foreach (var c in Controls)
{
if (c is RadioButton2 && (c as RadioButton2).GroupName == rb.GroupName)
{
(c as RadioButton2).Checked = false;
}
}
rb.Checked = true;
}
}
private void Form1_Load(object sender, EventArgs e)
{
//a group
RadioButton2 rb1 = new RadioButton2();
rb1.Text = "radio1";
rb1.AutoSize = true;
rb1.AutoCheck = false;
rb1.Top = 50;
rb1.Left = 50;
rb1.GroupName = "a";
rb1.Click += RadioButton2_Clicked;
Controls.Add(rb1);
RadioButton2 rb2 = new RadioButton2();
rb2.Text = "radio2";
rb2.AutoSize = true;
rb2.AutoCheck = false;
rb2.Top = 50;
rb2.Left = 100;
rb2.GroupName = "a";
rb2.Click += RadioButton2_Clicked;
Controls.Add(rb2);
//b group
RadioButton2 rb3 = new RadioButton2();
rb3.Text = "radio3";
rb3.AutoSize = true;
rb3.AutoCheck = false;
rb3.Top = 80;
rb3.Left = 50;
rb3.GroupName = "b";
rb3.Click += RadioButton2_Clicked;
Controls.Add(rb3);
RadioButton2 rb4 = new RadioButton2();
rb4.Text = "radio4";
rb4.AutoSize = true;
rb4.AutoCheck = false;
rb4.Top = 80;
rb4.Left = 100;
rb4.GroupName = "b";
rb4.Click += RadioButton2_Clicked;
Controls.Add(rb4);
}
回答by fat
If you cannot put them into one container, then you have to write code to change checkedstate of each RadioButton:
如果您不能将它们放入一个容器中，那么您必须编写代码来更改每个RadioButton 的选中状态：
private void rbDataSourceFile_CheckedChanged(object sender, EventArgs e)
{
rbDataSourceNet.Checked = !rbDataSourceFile.Checked;
}
private void rbDataSourceNet_CheckedChanged(object sender, EventArgs e)
{
rbDataSourceFile.Checked = !rbDataSourceNet.Checked;
}
回答by Luis Perez
Put radio buttons inside GroupBox(or other panel)
将单选按钮放在 GroupBox（或其他面板）中
回答by Mr.B
All radio buttons inside of a share container are in the same group by default.
Means, if you check one of them - others will be unchecked.
If you want to create independent groups of radio buttons, you must situate them into different containers such as Group Box, or control their Checkedstate through code behind.
默认情况下，共享容器内的所有单选按钮都在同一组中。意思是，如果您选中其中一个 - 其他人将不被选中。如果要创建独立的单选按钮组，则必须将它们置于不同的容器中，例如Group Box，或者通过隐藏的代码控制它们的Checked状态。
