ScriptManager.RegisterExpandoAttribute Method
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.
Registers a name/value pair with the ScriptManager control as a custom (expando) attribute of a specified control.
public:
static void RegisterExpandoAttribute(System::Web::UI::Control ^ control, System::String ^ controlId, System::String ^ attributeName, System::String ^ attributeValue, bool encode);
public static void RegisterExpandoAttribute (System.Web.UI.Control control, string controlId, string attributeName, string attributeValue, bool encode);
static member RegisterExpandoAttribute : System.Web.UI.Control * string * string * string * bool -> unit
Public Shared Sub RegisterExpandoAttribute (control As Control, controlId As String, attributeName As String, attributeValue As String, encode As Boolean)
Parameters
- control
- Control
The control that is registering the expando attribute.
- controlId
- String
The control that contains the custom attribute on the page.
- attributeName
- String
The name of the custom attribute to register.
- attributeValue
- String
The value of the custom attribute.
- encode
- Boolean
true
to encode the custom attribute that is being registered; otherwise, false
.
Exceptions
control
is null
.
control
is not in the page's control tree.
-or-
controlId
is null
.
-or-
controlId
is empty.
-or-
attributeName
is null
.
-or-
attributeName
is empty.
-or-
attributeName
is already registered.
Remarks
You use the RegisterExpandoAttribute method to register a custom (expando) property for a control that is compatible with partial-page rendering and that has no Microsoft Ajax Library dependencies.
The RegisterExpandoAttribute method registers a name/value pair as a custom attribute for the specified control. The property is set dynamically from ECMAScript (JavaScript) to preserve XHTML compatibility for the rendered control's markup. Set encode
to true
if you have to escape any characters in the dynamic property's value.
If the control to which the dynamic property will be added is not found, a script error occurs.
Applies to
See also
.NET
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