Text property: Validation Controls - Course ASP.NET 4 and Visual Studio 2010 - Lesson 14 | .net courses
In this video we explored two important items: the Text property and the Validators collection.
Duration: 21 minutes
Summary: On this video we explored two important items: the Text property
and the Validators collection. For the Text property we found out that we can
add html to the property and have that html render with the error. We changed
the text to bold on the first attempt, and then displayed an error icon by
adding the <img> tag to the Text property. Regarding the Validators
collection, we added code to the PreRender event that loops over all the
validators on the page to get their ControlToValidate. Once we get that control,
we check whether the data is valid. If it was not valid we changed the
background color of the control to yellow. But of course there is a trick to
that: since the validation will happen on the client first, we need to turn the
EnableClientScript to false. That way we can skip the client validation and hit
the server validation and have our control’s background color changing to
yellow whenever the user enters invalid data.
of the development of example: Good coding standard
and simplified design to illustrate the key points.
Used: ASP.NET and Visual Studio 2010
Keyword: ASP.NET 4, Visual Studio 2010, Text property,
Image, Validators, WebControl, EnableClientScript, OnPreRender,
Add your comment
no comments have been posted - be the first!
Este post é fechado - você precisa ter acesso ao post para incluir um comentário.
Help us to improve! Give us your feedback: