ITextControl Interface
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Defines the interface a control implements to get or set its text content.
public interface class ITextControlpublic interface ITextControltype ITextControl = interfacePublic Interface ITextControl- Derived
Examples
The following code example shows a custom control that implements the ITextControl interface. A default value is assigned to the Text property if null is passed to the property.
public class CustomTextControl : Control, ITextControl
{
private string _text;
public CustomTextControl()
{
}
public string Text
{
get
{
return _text;
}
set
{
if (value != null)
{
_text = value;
}
else
{
_text = "No Value.";
}
}
}
// Provide the remaining code to implement a text control.
}
Public Class CustomTextControl
Inherits System.Web.UI.Control
Implements System.Web.UI.ITextControl
Private _text As String
Public Property Text() As String Implements System.Web.UI.ITextControl.Text
Get
Return _text
End Get
Set(ByVal value As String)
If (value <> Nothing) Then
_text = value
Else
_text = "No Value."
End If
End Set
End Property
' Provide the remaining code to implement a text control.
End Class
Remarks
The ITextControl interface defines the Text property a control implements to allow the getting or setting of its text content. The Text property can be set programmatically or through user input.
Caution
A control implementing this interface can be used to display user input. Before displaying user input, the input must be checked for malicious client script, such as executable script or SQL statements. ASP.NET provides an input request validation feature to block script and HTML in user input. Validation server controls are also provided to assess user input. For more information, see Validation Server Control Syntax.
Properties
| Text |
Gets or sets the text content of a control. |
