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TextBox.CharacterCasing Property

Gets or sets whether the TextBox control modifies the case of characters as they are typed.

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

public CharacterCasing CharacterCasing { get; set; }
/** @property */
public CharacterCasing get_CharacterCasing ()

/** @property */
public void set_CharacterCasing (CharacterCasing value)

public function get CharacterCasing () : CharacterCasing

public function set CharacterCasing (value : CharacterCasing)

Not applicable.

Property Value

One of the CharacterCasing enumeration values that specifies whether the TextBox control modifies the case of characters. The default is CharacterCasing.Normal.

Exception typeCondition

InvalidEnumArgumentException

A value that is not within the range of valid values for the enumeration was assigned to the property.

You can use the CharacterCasing property to change the case of characters as required by your application. For example, you could change the case of all characters entered in a TextBox control used for password entry to uppercase or lowercase to enforce a policy for passwords.

The following code example creates a TextBox control that is used to accept a password. This example uses the CharacterCasing property to change all characters typed to uppercase, and the MaxLength property to restrict the password length to eight characters. This example also uses the TextAlign property to center the password in the TextBox control.

public void CreateMyPasswordTextBox()
 {
    // Create an instance of the TextBox control.
    TextBox textBox1 = new TextBox();
    // Set the maximum length of text in the control to eight.
    textBox1.MaxLength = 8;
    // Assign the asterisk to be the password character.
    textBox1.PasswordChar = '*';
    // Change all text entered to be lowercase.
    textBox1.CharacterCasing = CharacterCasing.Lower;
    // Align the text in the center of the TextBox control.
    textBox1.TextAlign = HorizontalAlignment.Center;
 }
 

public void CreateMyPasswordTextBox()
{
    // Create an instance of the TextBox control.
    TextBox textBox1 = new TextBox();
    // Set the maximum length of text in the control to eight.
    textBox1.set_MaxLength(8);
    // Assign the asterisk to be the password character.
    textBox1.set_PasswordChar('*');
    // Change all text entered to be lowercase.
    textBox1.set_CharacterCasing(CharacterCasing.Lower);
    // Align the text in the center of the TextBox control.
    textBox1.set_TextAlign(HorizontalAlignment.Center);
} //CreateMyPasswordTextBox

public function CreateMyPasswordTextBox()
 {
    // Create an instance of the TextBox control.
    textBox1 = new TextBox();
    // Set the maximum length of text in the control to eight.
    textBox1.MaxLength = 8;
    // Assign the asterisk to be the password character.
    textBox1.PasswordChar = '*';
    // Change all text entered to be lowercase.
    textBox1.CharacterCasing = CharacterCasing.Lower;
    // Align the text in the center of the TextBox control.
    textBox1.TextAlign = HorizontalAlignment.Center;
 }
 

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, 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, 1.1, 1.0

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