Uri.GetLeftPart Method
Gets the specified portion of a Uri instance.
Assembly: System (in System.dll)
'Declaration Public Function GetLeftPart ( _ part As UriPartial _ ) As String 'Usage Dim instance As Uri Dim part As UriPartial Dim returnValue As String returnValue = instance.GetLeftPart(part)
Parameters
- part
- Type: System.UriPartial
One of the UriPartial values that specifies the end of the URI portion to return.
| Exception | Condition |
|---|---|
| InvalidOperationException | The current Uri instance is not an absolute instance. |
| ArgumentException | The specified part is not valid. |
The GetLeftPart method returns a string containing the leftmost portion of the URI string, ending with the portion specified by part.
GetLeftPart includes delimiters in the following cases:
Scheme includes the scheme delimiter.
Authority does not include the path delimiter.
Path includes any delimiters in the original URI up to the query or fragment delimiter.
The following examples show a URI and the results of calling GetLeftPart with Scheme, Authority, Path, or Query.
URI | Scheme | Authority | Path | Query |
|---|---|---|---|---|
http://www.contoso.com/index.htm?date=today | http:// | http://www.contoso.com | http://www.contoso.com/index.htm | http://www.contoso.com/index.htm?date=today |
http://www.contoso.com/index.htm#main | http:// | http://www.contoso.com | http://www.contoso.com/index.htm | http://www.contoso.com/index.htm |
mailto:user@contoso.com?subject=uri | mailto: | mailto:user@contoso.com | mailto:user@contoso.com?subject=uri | <none> |
nntp://news.contoso.com/123456@contoso.com | nntp:// | nntp://news.contoso.com | nntp://news.contoso.com/123456@contoso.com | nntp://news.contoso.com/123456@contoso.com |
news:123456@contoso.com | news: | news:123456@contoso.com | news:123456@contoso.com | <none> |
file://server/filename.ext | file:// | file://server | file://server/filename.ext | file://server/filename.ext |
The following example creates a Uri instance and writes the path to the console.
' Create Uri Dim uriAddress As New Uri("http://www.contoso.com/index.htm#search") Console.WriteLine(uriAddress.Fragment) Console.WriteLine("Uri {0} the default port ", IIf(uriAddress.IsDefaultPort, "uses", "does not use")) 'TODO: For performance reasons this should be changed to nested IF statements Console.WriteLine("The path of this Uri is {0}", uriAddress.GetLeftPart(UriPartial.Path)) Console.WriteLine("Hash code {0}", uriAddress.GetHashCode())
// Create Uri
Uri* uriAddress = new Uri(S"http://www.contoso.com/index.htm#search");
Console::WriteLine(uriAddress->Fragment);
Console::WriteLine(S"Uri {0} the default port ", uriAddress->IsDefaultPort ? S"uses" : S"does not use");
Console::WriteLine(S"The path of this Uri is {0}", uriAddress->GetLeftPart(UriPartial::Path));
Console::WriteLine(S"Hash code {0}", __box(uriAddress->GetHashCode()));
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.