Asp.net中文件夹名称的正则表达式 [英] Regular Expression in Asp.net for Folder Name

问题描述

我想验证用于创建文件夹的字符串.
所以我想限制用户输入\ / : ? " < > |
之类的字符 此字符将使文件夹创建失败.
任何人都可以通过给我正则表达式来验证此字符的方式来帮助我吗?

谢谢
[edit]删除了空格[/edit]

I want to validate a string that is used to create a folder.
so I want to restrict user from entering characters like \ / : ? " < > |
this characters will down the folder creation.
Can anyone help me by giving me the regular expression to validate this characters?

Thank You
[edit]removed white spaces[/edit]

推荐答案

string abc = "anvas the realnapster /";
char[] SpecialChars = "\/:?<>|".ToCharArray();
int indexOf = abc.IndexOfAny(SpecialChars);
if (indexOf != -1)
{
    //there should a special char in the string
}
else
{
    //string is fine
}

Anvas的想法正确，但是.NET提供了两种方法，它们返回文件和路径的非法字符，您应该使用这些方法来代替定义自己的字符:
GetInvalidPathChars [ GetInvalidFileNameChars [

Anvas has the right idea, but .NET provides two methods which return the illegal characters for a file and a path, which you should use instead of defining your own:
GetInvalidPathChars [^]
GetInvalidFileNameChars[^]

if (myFileName.IndexOfAny(Path.GetInvalidFileNameChars()) != -1)
   {
   // Illegal character in file name
   }

与指定自己的端口相比，使用这些端口可提供更好的可移植性.

Using these provides better portability than specifying your own.

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