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PasswordBox.MaxLength Property

Gets or sets the maximum length for passwords to be handled by this PasswordBox.

Namespace:  System.Windows.Controls
Assembly:  PresentationFramework (in PresentationFramework.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation

public int MaxLength { get; set; }
<object MaxLength="int" .../>

Property Value

Type: System.Int32
An integer specifying the maximum length, in characters, for passwords to be handled by this PasswordBox.
A value of zero (0) means no limit.
The default value is 0 (no length limit).

Identifier field

MaxLengthProperty

Metadata properties set to true

None

This property only restricts passwords entered manually by the user; it has no effect on programmatic manipulation of the Password property.

The following example shows how to set the MaxLength attribute of a PasswordBox element.

<PasswordBox
  Name="pwdBox" 
  MaxLength="64"
  PasswordChar="#"
  PasswordChanged="PasswordChangedHandler"  
/>

The following example shows how to set the MaxLength property programmatically.

// Set the new maximum input length for passwords to 128 characters.
pwdBox.MaxLength = 128;

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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