I use C#. I have a Windows Form with an edit box and a Cancel button. The edit box has code in validating event. The code is executed every time the edit box loses focus. When I click on the Cancel...

I have tried Regex accept numeric only. First character can't be 0 and What is the regex for "Any positive integer, excluding 0" however that didn't work as per my requirements. I wa...

I need to make sure that a certain <input> field only takes numbers as value. The input is not part of a form. Hence it doesn't get submitted, so validating during submission is not an option...

I have an error "No identities are available for signing" when try to validate my app in Xcode 5. I tried all: Recreate certificates and provisioning profiles, all methods which have been described...

Hey... how would you validate a full_name field (name surname).

I would like to manipulate a cell in my DataGridView when it is validating so that if the user enters a value that is not valid for the database, but is easily converted to valid data, the program ...

I don't know why I keep getting this error while checking my page at http://validator.w3.org/check The error was: Line 235, Column 84: The for attribute of the label element must refer to a form c...

So what I need to have happen: User types in 10 digits (only digits) and clicks “Submit” On submit – the user gets redirected to another landing page. Here is what I’ve done…and its redirecting, ...