For more information, see In the first part of the walkthrough, you will create a Web site and a page where you can work with styles. You must always have server-side validation logic for a control as well.
You will work with some controls that perform all checking automatically, requiring no code.
You will also create a custom validator with code that you write, which illustrates how you can add your own logic to the validation framework in the page.
I have a small project for school and I can't figure out why I'm getting this error when validating inputs.
For example, I'm checking if the input is valid and between a min and max range by creating a function to return a true or false value based on the values entered.
The reason I'm using a function is because I'm doing multiple similar checks and I figured rather than rewriting it out again, this was the best way to do this task.
For some reason, despite the fact it should make sure that the value is numeric before it checks whether it's within a numerical range. This is the problem I'm having, I try things like this and it still doesn't work and I just don't know why. I don't understand at what point it's trying to convert to a double. I was returning true and false the wrong way around it appears because I needed to continue the loop it needed to be true where it would usually be false in regular validation.
Because the purpose of the walkthrough is to illustrate validation, the nature of the reservation is not important (for example, if could be for a restaurant, a community center meeting room, or something else), and the page does not actually process the reservation.
The page you create will prompt the user for an e-mail address, the number of people to reserve for, and a preferred date.
I was working on this for hours and didn't even notice that small change. So, if all required fields have a value and you click the Save button, the information needs to be put into a database.