如何在C＃winform应用程序中验证URL [英] How to validate a url in C# winform application

问题描述

如何在C＃中验证网址。





提前致谢

Hi,

How to validate a url in C#.


Thanks in advance

推荐答案

使用 Uri.IsWellFormedUriString 检查网址格式是否正确。



例如，

Use Uri.IsWellFormedUriString to check whether the URL is in correct form.

For example,

Uri.IsWellFormedUriString("http://www.google.com", UriKind.Absolute);

It当URL格式正确时，将返回true。



要检查URL是否存在，请创建 WebRequest ：

It'll return true as the URL is in correct form.

To check the existence of a URL create a WebRequest:

WebRequest request = WebRequest.Create("http://www.google.com");
try
{
     request.GetResponse();
}
catch //If exception thrown then couldn't get response from address
{
     /// The URL is incorrect
     MessageBox.Show("The URL is incorrect");
}

使用Uri.TryCreate方法验证网址。



请参考以下链接



http://stackoverflow.com/questions/3228984/a-better-way-to-validate-url -in-c-sharp-than-try-catch [ ^ ]



MSDN链接：



http://msdn.microsoft.com /en-us/library/system.uri.trycreate.aspx [ ^ ]

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