Difference between validating and validated events in vb net

This means a more responsive, visually rich validation.

With client-side validation, form never gets submitted if validation fails.

Back Color = vb Yellow End Sub Private Sub Text1_Lost Focus() Text1.

Back Color = vb White End Sub Private Sub Text1_Validate(Cancel as Boolean) Cancel = (Text1. In some applications, however, the code in the Text1_Lost Focus method might depend on some variable that has been set in the Validate event.

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Notice that in the previously described scenario – the end user moves the focus away with the mouse but the control fails to validate – then a pair of Lost Focus/Got Focus events is fired anyway (unlike VB6), but this is seldom a problem.Ideally, users will fill the web form with necessary information and finish their job successfully. In this article we will go beyond the validation itself and explore different validation and error feedback techniques, methods and approaches. The goal of web form validation is to ensure that the user provided necessary and properly formatted information needed to successfully complete an operation.If the validation fails, the response is then sent back to the client, page that contains the web form is refreshed and a feedback is shown.This method is secure because it will work even if Java Script is turned off in the browser and it can’t be easily bypassed by malicious users. Ajax calls to the server can validate as you type and provide immediate feedback.

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