Check whether a path is valid

Question

Try Uri.IsWellFormedUriString():

The string is not correctly escaped.

  http://www.example.com/path???/file name

The string is an absolute Uri that represents an implicit file Uri.
```
  c:\\directory\filename
```
The string is an absolute URI that is missing a slash before the path.
```
  file://c:/directory/filename
```
The string contains unescaped backslashes even if they are treated as forward slashes.
```
  http:\\host/path/file
```
The string represents a hierarchical absolute Uri and does not contain “://”.
```
  www.example.com/path/file
```
The parser for the Uri.Scheme indicates that the original string was not well-formed.
```
  The example depends on the scheme of the URI.
```