VirtualPathProvider.FileExists(String) Method
Definition
Important
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Gets a value that indicates whether a file exists in the virtual file system.
public:
virtual bool FileExists(System::String ^ virtualPath);public virtual bool FileExists (string virtualPath);abstract member FileExists : string -> bool
override this.FileExists : string -> boolPublic Overridable Function FileExists (virtualPath As String) As BooleanParameters
- virtualPath
- String
The path to the virtual file.
Returns
true if the file exists in the virtual file system; otherwise, false.
Examples
The following code example is an implementation of the FileExists method in a custom VirtualPathProvider class. For the full code required to run the example, see the Example section of the VirtualPathProvider class overview topic.
public override bool FileExists(string virtualPath)
{
if (IsPathVirtual(virtualPath))
{
SampleVirtualFile file = (SampleVirtualFile)GetFile(virtualPath);
return file.Exists;
}
else
{
return Previous.FileExists(virtualPath);
}
}
Public Overrides Function FileExists(ByVal virtualPath As String) As Boolean
If (IsPathVirtual(virtualPath)) Then
Dim file As SampleVirtualFile
file = CType(GetFile(virtualPath), SampleVirtualFile)
Return file.Exists
Else
Return Previous.FileExists(virtualPath)
End If
End Function
Remarks
Override the FileExists method to indicate to the compilation system that the resource represented by virtualPath exists in the virtual file system provided by this VirtualPathProvider instance.
