Exercise: Create a toolbar and menu system

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Category ==> Visual Basic 2010  (42 exercises)
Topic ==> Menus and toolbars  (1 exercise)
Level ==> Average difficulty
Course ==> WinForms using VB
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Add the existing form frmNewHeart into your project from the folder shown above (or use one you already have).

Allow a user to change the colour of each text box, by adding MenuStrip, ToolStrip, StatusStrip and ContextMenu controls (you may find the property shown below useful):

Visual Basic 2010 exercise - Menus and toolbars (image 1)

You can change the colour of a textbox using the menu, toolbar or short-cut menu

Here's what the Colour menu would look like for this example (the Red option is disabled, as this is the colour selected):

Visual Basic 2010 exercise - Menus and toolbars (image 2)

The chosen menu option is checked, but not enabled

You may find it useful to write the following property of the form, so that you can find out which the currently selected textbox is (note that if the user is not on a text box, this routine will return Nothing - which you can test for):

Visual Basic 2010 exercise - Menus and toolbars (image 3)

The TRYCAST function will attempt to convert the control into a textbox, and return NOTHING if this is not possible

Test that your application works, then close the form down.

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