Validating textbox c Bbble sex chat
Please open a new issue for each question you want to ask in the future.
For now, I've created separate issues on your behalf myself:1 ID Q158582 (DXValidation Provider - How to validate a Text Edit by the text length), 2 ID Q158586 (DXValidation Provider - How to close a Form that contains a control with an invalid value), and will post my answers there.
Sometimes, when we build an input processing forms we might come across situations where we need to validate controls based on some conditions.
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In this example I am implementing an generic validation rule that takes a regular expression as validation rule.
Error provider displays a user-friendly message to notify the user whenever validation fails.For example, we can make a textbox to be required field only when a checkbox is checked or a dropdownlist value, etc.