Validating asp net
Please be more specific and ask yourself, what control and what property of that particular control I need to validate?
To help you decide, here's a list of typical controls along with the typically validated property of this control.
In the following example we will provide you with step by step instructions regarding how to force your user to enter a value inside a text box (he will not be able to continue working without entering this value).
The example is a very simple calculator that calculates the square of the number (the number multiplied by itself) entered by the user.
Our article regarding, how to develop; make; create; use the ASP.
NET Validation Controls to Validate the User Input. It will check the target Id is not blank, means it will be mandatory field to form.
Here's the steps you need to perform: From the toolbox get a Text Box, a Label, a Button, and a Required Field Validator and draw them on your form (Place the Required Field Validator control to the side of the Text Box) In the properties window, set the following properties: Run your application and click the button Congratulations, you are now a user of an application that employ input validation, want to know why?
While writing the application, the scenarios of failure arise one by one and are to be handled by the developer so that his application is robust enough.
Your validation needs does not fit on any of the categories specified in this table but you are still able to write code that checks for the validity of this input.
Here you can use the Validate Empty Text property to do validation even if the validation value is empty.
Developing robust applications is the target of every serious developer.
Being sure from the correctness of the input coming to your application is one of the major practices used to rise application robustness. The process of developing a very simple web application In most of web applications, the user of the application provides input to be manipulated by your web application.