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Uri.UriSchemeFile Field

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Specifies that the URI is a pointer to a file. This field is read-only.

Namespace:  System
Assembly:  System (in System.dll)

Syntax

'Declaration
Public Shared ReadOnly UriSchemeFile As String
public static readonly string UriSchemeFile

Remarks

In .NET Framework version 1.1, a "file:///path" URI was translated to "file:/path". This has been corrected for version 2.0.

Silverlight-based applications are cross-platform, so they run in most modern Web browsers, including Apple Safari version 2.0 and later on Apple Mac OS X. However, full parsing for UNC style paths in a Uri is supported only on Windows. Any backslashes in a Uri for the UriSchemeFile representing a UNC path are converted to forward slashes on Apple Mac OS X.

An example that displays this issue is below:

Uri testUri = Uri(@"file://\\computer\download\file.ext");

On Windows, this UNC path is converted to the following Uri:

file://computer/download/file.ext

The AbsolutePath is /download/file.ext.

The Host property is equal to: computer.

The IsUnc property is true.

The LocalPath property is \\computer\download\file.ext.

On Apple Mac OS X, this UNC path is converted to the following Uri:

file::////computer/download/file.ext

The AbsolutePath property is //computer/download/file.ext.

The Host property is an empty string.

The IsUnc property is false.

The LocalPath property is computer/download/file.ext.

Examples

The following example creates a Uri instance and determines whether the scheme is UriSchemeFile.

Dim address4 As Uri = New Uri("file://server/filename.ext")
If address4.Scheme = Uri.UriSchemeFile Then
  outputBlock.Text &= "Uri is a file"
  outputBlock.Text &= vbCrLf
End If
Uri address4 =  new Uri("file://server/filename.ext");
if (address4.Scheme == Uri.UriSchemeFile) 
    outputBlock.Text += "Uri is a file\n";
Uri address2 =  new Uri("file://server/filename.ext");
if (address2.Scheme == Uri.UriSchemeFile) 
    Console.WriteLine("Uri is a file");

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

See Also

Reference