Disabling MenuItems

naglbitur

Hi there. I have an app that has several menus. I want that when a certain menuItem(s) is/are selected other menuItems are disabled. For instance, if a user selects menuItem2 I want menuItems 10, 12 and 17 to be disabled. How do I go about coding that? I know about Enable = false but I don´t know how to code: if such and such menuItems are selected then such and such menuItems are to be disabled. Thanks, FJ

dnewmon

Are you talking about menu items with CheckBox's ? Something this simple might help: menuItem3.Enabled = (menuItem1.Checked && menuItem2.Checked && ...); Enjoy, David

naglbitur

Hi. No, what I mean is to have a menuItem like Paste grayed out unless you have something on the clipboard, one can´t paste unless something is on the clipboard. Once you have something on the clipboard Paste becomces selectable, not grayed out. I want certain menuItems to be grayed out if some other menuItem is selected. Thanks, FJ

mav northwind

Hi! You can use the menu's Popup event to enable/disable the menu items of your menu, so if you have a menu myMenu you could write the Popup event handler like this:

private void myMenu_Popup(object sender, EventArgs e)
{
myMenuItem1.Enabled = SomeFunctionToDecideWhetherMenuItem1IsEnabled();
}

or, using the clipboard example:

private void menuEdit_Popup(object sender, EventArgs e)
{
DataObject dob = Clipboad.GetDataObjet();
// Only enable the Paste command if there's Text on the clipboard
menuEditPaste.Enabled = dob.GetDataPresent(DataFormats.Text);
}

Regards, mav

Andre Ziegler

Search for an ActionList component on codeproject, this should help you. 'A programmer is just a tool which converts caffeine into code'

naglbitur

Hi, thanks for your help. I still don´t know how to do this. How can I disable a menuItem when some other menuItem is selected? For instance, if menuItem5 is chosen then I want menuItem11 and menuItem12 to be disabled? How do I do that? Thanks again for your help, FJ

mav northwind

private void menuItem5_Clicked(object sender, EventArgs e)
{
menuItem11.Enabled = false;
menuItem12.Enabled = false;
}

that's as explicit as I can put it... mav

naglbitur

Hi. This is very clear!! Vielen Dank! Take care, FJ