executive stock option plans backdating motivation - Validating user input in asp net web pages

You can add support to perform validation in client script.

In that case, the validation is performed as users work in the browser.

These pairs let you define rules for both conditions: an error condition and a "normal" (non-error) condition.

This test would pass the first time that the page is requested, but not when the request is a form submission.

NET Web Pages and the new Razor syntax provide a fast, approachable, and lightweight way to combine server code with HTML to create dynamic web content.

Performing validation in server code is a security measure, in case users bypass client-based validation.

The following page shows how to add client validation features to the example shown earlier. code-cshtml Main] Not all validation checks run on the client.

Sometimes you have to validate information that doesn't come directly from an HTML form.

A typical example is a page where a value is passed in a query string, as in the following example: source, including form-field values, query-string values, and cookie values.

In particular, data-type validation (integer, date, and so on) don't run on the client.

The following checks work on both the client and server: In this example, the test for a valid date won't work in client code.

For example, suppose you specify that a value should be an integer.

If a user enters a non-integer value, the error is reported as soon as the user leaves the entry field.

For example, if a page has an element as a placeholder for an individual field error, even if there is no error.

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