When overriding the Focused property in a derived class, use the base class's Focused property to extend the base implementation. Otherwise, you must provide all the implementation.
The following code example disables a MenuItem if a TextBox does not have focus. This example requires that you have a Form with a TextBox named textBox1 and two MenuItem objects named menuItemEdit and menuItemEditInsertCustomerInfo.
private:
void menuItemEdit_Popup( Object^ /*sender*/, EventArgs^ /*e*/ )
{
// Disable the menu item if the text box does not have focus. this->menuItemEditInsertCustomerInfo->Enabled = this->textBox1->Focused;
}
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.