Validating forms with free dating site usa 2014

by  |  14-Jul-2019 11:17

If correct, the application allows the data to be submitted to the server and (usually) saved in a database; if not, it gives you error messages to explain what you've done wrong (provided you've done it right).

Form validation can be implemented in a number of different ways.

validating forms with-68

For example, if you have a text box that must contain a postal code, you can perform the validation in the following ways: The Validating event is supplied an object of type Cancel Event Args.

If you determine that the control's data is not valid, you can cancel the Validating event by setting this object's Cancel property to .

Validation is very useful when you have bound your controls to a data source, such as a database table.

By using validation, you can make sure that your control's data satisfies the format required by the data source, and that it does not contain any special characters such as quotation marks and back slashes that might be unsafe.

Sending data is not enough — we also need to make sure that the data users fill out in forms is in the correct format that we need to process it successfully, and that it won't break our applications.

Community Discussion