Form Validation in Classic ASP — a practical guide to Classic ASP form validation with clear examples you can reuse in real projects.
ASP & ASP.NET Tutorial Series (22/247). Prefer one article? Read the complete ASP.NET tutorial.
Short description
Always validate again on the server — client checks are optional UX.
Validation tip
If Trim(Request.Form("email")) = "" Then
Response.Write "Email required"
End If