SO I have a data driven page which has both add and edit elements, which have their own validation controls. <BR><BR>What is a good strategy or technique(or is there some master control I'm missing, ...

Here's how to integrate the ASP.NET CustomValidator control with client-side code to create a page that uses Ajax and server-side code to validate data at the browser. In a comment to a tip in our ...

Take advantage of automatic model state validation in ASP.Net Core to avoid tedious manual coding for HTML form validation When we create applications that accept data from users, we must validate ...

Take advantage of the FluentValidation open-source library to validate data in your ASP.NET Core application and keep your code clean, organized, and maintainable. To preserve the integrity, ...

<asp:TextBox ID="tbFirstName" runat="server" CausesValidation="true" style="width: 50%;" /> <asp:RequiredFieldValidator ID="rfvFirstName" runat="server ...

The goal of the IClientValidatable interface is to let you extend your server-side DataAnnotations with client-side functions in ASP.NET MVC 3. For instance, a Data Annotation that ensured that a ...