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SecureString.IsReadOnly Method

Indicates whether this secure string is marked read-only.

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

public bool IsReadOnly ()
public boolean IsReadOnly ()
public function IsReadOnly () : boolean
Not applicable.

Return Value

true if this secure string is marked read-only; otherwise, false.

Exception typeCondition

ObjectDisposedException

This secure string has already been disposed.

After an instance of SecureString is marked read-only by the MakeReadOnly method, any attempt to modify the value of the instance throws an InvalidOperationException. Use the IsReadOnly method to test whether a SecureString is read-only.

Windows 98, Windows Server 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0
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