MenuItem.RadioCheck Property
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Gets or sets a value indicating whether the MenuItem, if checked, displays a radio-button instead of a check mark.
public:
property bool RadioCheck { bool get(); void set(bool value); };public bool RadioCheck { get; set; }member this.RadioCheck : bool with get, setPublic Property RadioCheck As BooleanProperty Value
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.
Examples
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;
}
}
// This method is called from the constructor of the form to set up the menu items.
public 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;
}
// The following event handler would be connected to three menu items.
private 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;
}
}
' This method is called from the constructor of the form to set up the menu
' items.
Public Sub 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
End Sub
' The following event handler would be connected to three menu items.
Private Sub MyMenuClick(sender As Object, e As EventArgs)
If sender Is menuItemBlue Then
' 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 Is menuItemRed Then
' 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
End If
End If
End Sub
Remarks
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.
