VirtualPathUtility.IsAbsolute(String) Method

Reference

Definition

Namespace:: System.Web

Assembly:: System.Web.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Returns a Boolean value indicating whether the specified virtual path is absolute; that is, it starts with a literal slash mark (/).

public:
 static bool IsAbsolute(System::String ^ virtualPath);

public static bool IsAbsolute (string virtualPath);

static member IsAbsolute : string -> bool

Public Shared Function IsAbsolute (virtualPath As String) As Boolean

Parameters

virtualPath: String

The virtual path to check.

Returns

Boolean

true if virtualPath is an absolute path and is not null or an empty string (""); otherwise, false.

Exceptions

ArgumentNullException

virtualPath is null.

Examples

The following code example demonstrates how to use the IsAbsolute, IsAppRelative, and ToAppRelative methods.

StringBuilder sb2 = new StringBuilder();
String pathstring1 = Context.Request.CurrentExecutionFilePath.ToString();
sb2.Append("Current Executing File Path = " + pathstring1.ToString() + "<br />");
sb2.Append("Is Absolute = " + VirtualPathUtility.IsAbsolute(pathstring1).ToString() + "<br />");
sb2.Append("Is AppRelative = " + VirtualPathUtility.IsAppRelative(pathstring1).ToString() + "<br />");
sb2.Append("Make AppRelative = " + VirtualPathUtility.ToAppRelative(pathstring1).ToString() + "<br />");
Response.Write(sb2.ToString());

Dim sb2 As New StringBuilder()
Dim pathstring1 As String = Context.Request.CurrentExecutionFilePath.ToString()
sb2.Append("Current Executing File Path = " & pathstring1.ToString() & "<br />")
sb2.Append("Is Absolute = " & VirtualPathUtility.IsAbsolute(pathstring1).ToString() & "<br />")
sb2.Append("Is AppRelative = " & VirtualPathUtility.IsAppRelative(pathstring1).ToString() & "<br />")
sb2.Append("Make AppRelative = " & VirtualPathUtility.ToAppRelative(pathstring1).ToString() & "<br />")
Response.Write(sb2.ToString())

Remarks

A virtual path is absolute if it begins with a literal slash mark (/). For example, the Path property returns an absolute virtual path.

Applies to

Zdieľať cez