Now that you’ve defined the custom attributes, how do you place them where a validator can find them?The very best place to put them would be as the and adding the new attribute specifications at the end of the file.Use the following code in the create button: In the code above, only after validating the form data, the page is redirected to the User page. Net web application and click on the Create button without inserting any data in the form, then it will show the following alert message.In the preceding screen you clearly see that even I have wriiten the code on the create button to redirect to the next page but it will not be redirected because the form data is blank and it does not satisfy our validation condition that we set.This article will uses the Xerces parser, available from xml.This parser is written in Java™, so you will need to have Java installed on your system.
Now add the condition to ensure that all controls have a value, if the values are not entered in the form control then it will show a message.
As you will see later, this will change when you make a custom DTD. For each attribute, you need to specify which element it goes with, what the attribute name is, what type of values it may have, and whether the attribute is optional or not.
This information is specified in this model: Note: Adding new attributes to existing elements is easy; adding new elements is somewhat more difficult and beyond the scope of this article.
Net controls values; they are:get Element By Id: this method is used to read the controls values by their Element By Name: this method is used to read the controls values by their Element By Tag Name: this method is used to read the controls values by their Tag Name.
In this article we use the In the code above I have taken the ASP.