IEditableTextControl Interface

Definition

Namespace:

System.Web.UI

Assembly:

System.Web.dll

Represents a control that renders text that can be changed by the user.

C#

public interface IEditableTextControl : System.Web.UI.ITextControl

Derived

System.Web.UI.WebControls.ListControl

System.Web.UI.WebControls.TextBox

Implements

ITextControl

Examples

The following code example shows an implementation of the TextChanged event.

C#

public partial class customeditablebox : System.Web.UI.UserControl, IEditableTextControl
{
    private static readonly object EventCustomTextChanged = new Object();

    public event EventHandler TextChanged
    {
        add
        {
            Events.AddHandler(EventCustomTextChanged, value);
        }
        remove
        {
            Events.RemoveHandler(EventCustomTextChanged, value);
        }
    }

    public string Text
    {
        get
        {
            // Provide implementation.
            return String.Empty;
        }
        set
        {
            // Provide implementation.
        }
    }
}

Remarks

Controls, such as TextBox and those that derive from ListControl, provide a text property that can be changed by a page user. When the text property is changed, an event is raised to notify handlers that the property has changed. Classes that implement IEditableTextControl must define the TextChanged event.

Although the IEditableTextControl interface contains only the TextChanged event, it inherits from the ITextControl interface, which defines a Text property. To implement the IEditableTextControl interface, a control must define the Text property and the TextChanged event that occurs when the Text property changes between posts to the server.

IEditableTextControl is implemented by TextBox and ListControl. In those classes, the event is raised through the ListControl.OnTextChanged or TextBox.OnTextChanged methods. A class that implements the IEditableTextControl interface could define a similar method for raising the event.

Properties

Text	Gets or sets the text content of a control. (Inherited from ITextControl)

Events

TextChanged

Occurs when the content of the text changes between posts to the server.

Applies to