RadioButton.CheckedChanged Event
.NET Framework 3.0
Occurs when the value of the Checked property changes.
Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in system.windows.forms.dll)
Assembly: System.Windows.Forms (in system.windows.forms.dll)
public: event EventHandler^ CheckedChanged { void add (EventHandler^ value); void remove (EventHandler^ value); }
/** @event */ public void add_CheckedChanged (EventHandler value) /** @event */ public void remove_CheckedChanged (EventHandler value)
In JScript, you can handle the events defined by a class, but you cannot define your own.
Not applicable.
For more information about handling events, see Consuming Events.
| Topic | Location |
|---|---|
| How to: Respond to a User Selection in a RadioButton Web Server Control Group | Building ASP .NET Web Applications |
| How to: Respond to a User Selection in a RadioButton Web Server Control Group | Building ASP .NET Web Applications |
The following code example demonstrates how the CheckAlign property can be changed at run time. The check box portion of a RadioButton is moved to the right or left of the text when the Checked value changes. This example requires that a RadioButton control has been instantiated on a form and that a reference to the System.Drawing namespace has been included.
private: Void radioButton1_CheckedChanged( System::Object^ sender, System::EventArgs^ e ) { // Change the check box position to be opposite its current position. if ( radioButton1->CheckAlign == ContentAlignment::MiddleLeft ) { radioButton1->CheckAlign = ContentAlignment::MiddleRight; } else { radioButton1->CheckAlign = ContentAlignment::MiddleLeft; } }
private void radioButton1_CheckedChanged(Object sender, EventArgs e)
{
// Change the check box position to be opposite its current position.
if (radioButton1.get_CheckAlign().Equals(ContentAlignment.MiddleLeft)) {
radioButton1.set_CheckAlign(ContentAlignment.MiddleRight);
}
else {
radioButton1.set_CheckAlign(ContentAlignment.MiddleLeft);
}
} //radioButton1_CheckedChanged
Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.Community Additions
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