Category: ASP.NET

Use RequiredFieldValidator, RegularExpressionValidator, and ValidationSummary.

Share chrome/layout with .master and ContentPlaceHolder.

Encapsulate reusable UI in .ascx user controls.

Bind lists and read SelectedValue on postback.

Toggle boolean options with Checked.

Use runat=”server” controls that participate in postbacks.

Promote HTML elements with runat=”server” for light server access.

Capture text input with asp:TextBox and Text/TextMode.

Display text with asp:Label (renders span).

Handle Click events with asp:Button causing postback.