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TextBox.CharacterCasing Property

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

[Visual Basic]
Public Property CharacterCasing As CharacterCasing
[C#]
public CharacterCasing CharacterCasing {get; set;}
[C++]
public: __property CharacterCasing get_CharacterCasing();
public: __property void set_CharacterCasing(CharacterCasing);
[JScript]
public function get CharacterCasing() : CharacterCasing;
public function set CharacterCasing(CharacterCasing);

Property Value

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

Exceptions

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

Remarks

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.

Example

The following 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.

[Visual Basic] 
Public Sub CreateMyPasswordTextBox()
    ' Create an instance of the TextBox control.
    Dim textBox1 As 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 = "*"c
    ' 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
End Sub


[C#] 
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;
 }
 

[C++] 
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;
 }
 

[JScript] 
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;
 }
 

Requirements

Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

See Also

TextBox Class | TextBox Members | System.Windows.Forms Namespace | CharacterCasing

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