How do I implement server-side validation in ASP.NET?
An example of an AI chatbot conversation about ASP.NET server-side validation controls.
How do I implement server-side validation in ASP.NET?
You can use validation controls like RequiredFieldValidator, RangeValidator, and CustomValidator in your ASP.NET application.
Can you give me an example of using the RequiredFieldValidator?
Sure! You can add it to your ASPX page like this: <asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ControlToValidate="TextBox1" ErrorMessage="Field is required!" />.
What about custom validation? How does that work?
For custom validation, you can use the CustomValidator control and define your own validation logic in the server-side code.
Can you show me a simple custom validation example?
Absolutely! You can define a method in your code-behind and set it as the validation function for the CustomValidator.
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