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MenuItem::RadioCheck Property

Gets or sets a value indicating whether the MenuItem, if checked, displays a radio-button instead of a check mark.

Namespace:  System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

public:
property bool RadioCheck {
	bool get ();
	void set (bool value);
}

Property Value

Type: System::Boolean
true if a radio-button is to be used instead of a check mark; false if the standard check mark is to be displayed when the menu item is checked. The default is false.

Check marks do not necessarily imply a mutually exclusive state for a group of menu items. You can use this property to indicate to the user that the check mark of a menu item is mutually exclusive.

The following code example uses the Checked property to change the state of an application. In the example, a group of menu items are provided that are used to specify the color for the text in an TextBox control. In the example, the event handler provided is used by the Click event of the three menu items. Each menu item specifies a color, menuItemRed, menuItemGreen, or menuItemBlue. The event handler determines which menu item was clicked, places a checkmark to the selected menu item, and changes the text color of the form's TextBox control, named textBox1. The example also uses the RadioCheck property to demonstrate how a radio-button check is used to show menu items that are mutually exclusive. This example requires that the System.Drawing namespace has been added to the form that contains this code.

public:
   // This method is called from the constructor of the form to set up the menu items. 
   void ConfigureMyMenus()
   {
      /* Set all of these menu items to Radio-Button check marks so the user can see 
         that only one color can be selected at a time. */
      menuItemRed->RadioCheck = true;
      menuItemBlue->RadioCheck = true;
      menuItemGreen->RadioCheck = true;
   }

private:
   // The following event handler would be connected to three menu items. 
   void MyMenuClick( Object^ sender, EventArgs^ e )
   {
      if ( sender == menuItemBlue )
      {
         // Set the checkmark for the menuItemBlue menu item.
         menuItemBlue->Checked = true;
         // Uncheck the menuItemRed and menuItemGreen menu items.
         menuItemRed->Checked = false;
         menuItemGreen->Checked = false;
         // Set the color of the text in the TextBox control to Blue.
         textBox1->ForeColor = Color::Blue;
      }
      else if ( sender == menuItemRed )
      {
         // Set the checkmark for the menuItemRed menu item.
         menuItemRed->Checked = true;
         // Uncheck the menuItemBlue and menuItemGreen menu items.
         menuItemBlue->Checked = false;
         menuItemGreen->Checked = false;
         // Set the color of the text in the TextBox control to Red.
         textBox1->ForeColor = Color::Red;
      }
      else
      {
         // Set the checkmark for the menuItemGreen menu item.
         menuItemGreen->Checked = true;
         // Uncheck the menuItemRed and menuItemGreen menu items.
         menuItemBlue->Checked = false;
         menuItemRed->Checked = false;
         // Set the color of the text in the TextBox control to Blue.
         textBox1->ForeColor = Color::Green;
      }
   }

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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