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 ...

Implementing one of three interfaces can turn your business classes into self-validating components that seamlessly integrate into WPF, Silverlight and ASP.NET MVC applications -- and can be easily ...

To increase code reuse possibilities in your ASP.NET applications, you can use a couple of different patterns. Learn more about the Page Controller and Front Controller patterns and how you can ...

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, ...

A Microsoft .NET DataList control contains a list of data you use to display results on a Web page. The results display in an HTML table, so you can format the view to make it more convenient for your ...

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