Validating textboxes in asp net mrtg stops updating for previous one
If the clientside validation is not working, the invalid form will be catched by our piece of code in the Code Behind file, as shown with the Required Field Validator.
This article discusses how to validate information you get from users — that is, to make sure that users enter valid information in HTML forms in an ASP. What you'll learn: If you ask users to enter information in a page — for example, into a form — it's important to make sure that the values that they enter are valid.
NET products) in order to add the property Validation Group to IValidator interface and change accordingly the implementation of the method responsible for getting all validators with a particular validation group (Page.
The Compare Validator might not be the most commonly used validator of the bunch, but it's still useful in some cases.
Add required field validators for every textbox and add a validation summary contol.
However, as you may have noticed, the content of the two textboxes is not checked before comparing it.
when you click the button , it will validate all validators from its validation group and display the message.
Like with the Required Field Validator, we use the controltovalidate attribute to specify which control to validate.
In addition to that, we specify a control to compare.
As you see, we only use one validator to validate the two fields.
It might seem a bit overwhelming, but it's actually quite simple.