SetAt()

void System.Security.SecureString.SetAt ( int index, char c )

inline

Definition at line 273 of file SecureString.cs.

    {
        lock (_methodLock)
        {
            if (index < 0 || index >= _decryptedLength)
            {
                throw new ArgumentOutOfRangeException("index", SR.ArgumentOutOfRange_IndexString);
            }
            EnsureNotDisposed();
            EnsureNotReadOnly();
            SafeBuffer bufferToRelease = null;
            try
            {
                UnprotectMemory();
                AcquireSpan(ref bufferToRelease)[index] = c;
            }
            finally
            {
                ProtectMemory();
                bufferToRelease?.DangerousRelease();
            }
        }
    }

References System.Security.SecureString._decryptedLength, System.Security.SecureString._methodLock, System.Security.SecureString.AcquireSpan(), System.SR.ArgumentOutOfRange_IndexString, System.Runtime.InteropServices.SafeHandle.DangerousRelease(), System.Security.SecureString.EnsureNotDisposed(), System.Security.SecureString.EnsureNotReadOnly(), System.index, System.Security.SecureString.ProtectMemory(), and System.Security.SecureString.UnprotectMemory().