File.Exists Method
Microsoft Silverlight will reach end of support after October 2021. Learn more.
When it is called by trusted applications, determines whether the specified file exists.
Namespace: System.IO
Assembly: mscorlib (in mscorlib.dll)
Syntax
'Declaration
<SecuritySafeCriticalAttribute> _
Public Shared Function Exists ( _
path As String _
) As Boolean
[SecuritySafeCriticalAttribute]
public static bool Exists(
string path
)
Parameters
- path
Type: System.String
The file to check.
Return Value
Type: System.Boolean
true if the caller has the required permissions and path contains the name of an existing file; otherwise, false. This method also returns false if path is nulla null reference (Nothing in Visual Basic), an invalid path, or a zero-length string. If the caller does not have sufficient permissions to read the specified file, no exception is thrown and the method returns false regardless of the existence of path.
Remarks
Platform Notes
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Silverlight for Windows Phone
This member has a SecurityCriticalAttribute attribute on Silverlight for Windows Phone, because the attribute was present in Silverlight 3. This attribute restricts this member to internal use. Application code that uses this member throws a MethodAccessException.
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.