This tutorial assumes that you have completed the previous
Stop your programme and return to the design environment. Click File
in Design Time to see your drop down menu. You can double click an item to open
up the code window. But don’t do that yet.
Another way to get to the code for an object is this:
- Press F7 on your keyboard to go to the code window. If nothing happens,
click View from the menu at the top of Visual Studio. Then
- Click the arrow at the top, where it says Form1: (It will say General
in earlier versions. Visual Studio 2015 to 2019 will have an extra
box on the left with the name of your project in it.)
- From the drop down box, have a look at the list of items:
The Exit menu here is “ExitToolStripMenuItem”. If you were to click
that item, a code stub would open, ready for you to type your code.
However, “ExitToolStripMenuItem” is very difficult to remember. We
can rename our menu items so that they are more descriptive. So do this:
- Get back to your form by pressing Shift + F7 on your keyboard
- Click the File menu to select it
- Select your Exit (or your Quit) item (Careful not to click in the
middle as this may open the code window.Click near the left edge somewhere.)
- When you have the Exit item selected, look at the properties box on the
- Click inside the Name property
- Change it to mnuExit (or mnuQuit)
- Press your return key on your keyboard to confirm the change
Now press F7 (or CTRL + ALT + 0) again to bring the code window up. Click the
drop down arrow of the General box, and you should see the new name appear (Notice
that MenuItem6 has vanished):
Click on your new mnuExit item.
Nothing will happen!
To jump straight to the code, you need to look at the drop down box opposite.
It will probably say Declarations, or CheckStateChanged. Click
the arrow and you’ll see a new list:
The items in the Declarations box are called Events. The Event you want is
the Click event. So select that one from the list (we’ll cover Events
in more depth later). When you select Click from the list, you are taken straight
into the code for that event. It should be like this one:
Notice that it says mnuExit_Click.
Don’t worry too much about what it all means; we’ll get to that in a later
section. What we want to do is add some of our own code, so that out Exit menu
item actually does something.
There’s only one line of code to add. It’s this:
The word “Me” refers to the form. When your type the word Me, you’ll
see a list if items appear. Double click the word Close, then press your return
key. Your code window should look like this:
To test out your new code, run your programme. Click your File menu,
and then click the Exit item. Your form should close down, and you’ll
be returned to the design environment.
In the next part, we’ll see how to add Sub menus.
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