MaskedTextBox.PasswordChar Property

Gets or sets the character to be displayed in substitute for user input.

Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in system.windows.forms.dll)

public char PasswordChar { get; set; }
/** @property */
public char get_PasswordChar ()

/** @property */
public void set_PasswordChar (char value)

public function get PasswordChar () : char

public function set PasswordChar (value : char)

Not applicable.

Property Value

The Char value used as the password character.

Exception typeCondition

ArgumentException

The character specified when setting this property is not a valid password character, as determined by the IsValidPasswordChar method of the MaskedTextProvider class.

InvalidOperationException

The password character specified is the same as the current prompt character, PromptChar. The two are required to be different.

For sensitive user input, it is common practice to conceal the actual information entered by the user. If the PasswordChar property is set to a non-null character, MaskedTextBox will display this character for all input into the control. Setting this property to a null reference (Nothing in Visual Basic) will disable this functionality.

If you want to use the operating system supplied password character, which is defined in COMCTL32.dll, use the UseSystemPasswordChar property instead. If both the PasswordChar and UseSystemPasswordChar properties are activated, the latter takes precedence.

NoteImportant:

As a security consideration, the MaskedTextBox control disables cut and copy operations on password-protected strings.

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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