Returns or sets a value indicating whether there is a maximum number of characters that can be entered in the TextBox control and, if so, specifies the maximum number of characters that can be entered.
Note In DBCS (double-byte character set) systems, each character can take up to two bytes instead of only one, which limits the number of characters you can enter.
object.MaxLength [= value]
The parts of the MaxLength property syntax are described in the following table.
| Part | Description |
|---|---|
| object | An object expression that evaluates to an object. |
| value | An integer specifying the maximum number of characters a user can enter in a TextBox control. The default for the MaxLength property is 0. This indicates no maximum other than that created by memory constraints on the user's system for single-line TextBox controls and a maximum of approximately 32K for multiple-line TextBox controls. Any number greater than 0 indicates the maximum number of characters. |
Use the MaxLength property to limit the number of characters a user can enter in a TextBox.
If text that exceeds the MaxLength property setting is assigned to a TextBox from code, no error occurs; however, only the maximum number of characters are assigned to the Text property, and extra characters are truncated. Changing this property does not affect the current contents of a TextBox, but will affect any subsequent changes to the contents.