Validating web form
The condition will be as follows: is shown to the user and finally we are returning false; that is very important.Importantance of returning false It's very important to use the return false statement after the condition block that return false so if validation determines that the business requirements are not met then the form cannot be submitted.The idea is to create a set of “validation descriptors” associated with each element in a form.The “validation descriptor” is nothing but a string specifying the type of validation to be performed.to avoid any erroneous data to be inserted into the database. So let us learn some basics because I have written this article only focusing on beginners and students. Example I hope you now understand the basics of validation in Java Script, now let us create the one sample web application that demonstrates how to do validation.
The Validate Form dialog box will appear, and you can then make changes to the existing validation rules.
On the other hand, it may appear that nothing happens at all when the form submission is successful.
However, for our purposes, the absence of any popup error message(s) upon form submission indicates that the form submission was indeed successful, i.e., the data entered into the form passed all of the script validation test(s).
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.