Exercise: Use an ErrorProvider control in a form

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Category ==> Visual C Sharp 2010  (65 exercises)
Topic ==> Validating forms  (3 exercises)
Level ==> Average difficulty
Course ==> WinForms using Visual C#
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Add the existing form called frmNewHeart from the folder above into your project (or use a version you've already created).

Add an ErrorProvider control called errTypical to your form.

Add code to the Validating and Validated events of the two text boxes so that:

  • the ErrorProvider control displays Enter a name next to the name if you leave it blank; and
  • the ErrorProvider controls displays Enter an age or Enter a valid age next to the age, if you either leave it blank or enter something which isn't a number

Here's what you should see if you leave the age blank:

Visual C Sharp 2010 exercise - Validating forms (image 1)

Katie has left her age blank

Check everything is working OK, then close down your form.

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