How to validate TextBox for website address input only in a Windows application

Question

I have a TextBox in a Windows application in C#.

I want to validate it so that the user can input only the website address in the proper format.

How can I do this?

I have also this question Thanks for asking.. – Sagotharan Dec 14 '11 at 07:29 — Sagotharan, Dec 14 '11 at 07:29

score 3 · Answer 1 · edited May 23 '17 at 10:33

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System.Uri.IsWellFormedUriString(userInput, System.UriKind.Absolute)

or use a regular expression:

What is the best regular expression to check if a string is a valid url

edited May 23 '17 at 10:33

Community

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answered Mar 03 '11 at 10:39

Dennis Traub

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score 0 · Answer 2 · answered Mar 03 '11 at 10:53

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In web application, go to toolbox, then select validation tools. In validation, choose Regular Expression Validator-is a error messager. In the property of regular expression validator, choose ValidationExpression-then select Internet Url

answered Mar 03 '11 at 10:53

Siva

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How to validate TextBox for website address input only in a Windows application

2 Answers2