CallbackType Property

Gets or sets the type of callbacks performed by the PowerWEB control.

[Visual Basic]
<DefaultValueAttribute()>
<BrowsableAttribute(False)>
Public Property CallbackType As CallbackType

[C#]
[DefaultValueAttribute()]
[BrowsableAttribute(false)]
public CallbackType CallbackType {get; set;}

[C++]
[DefaultValueAttribute()]
[BrowsableAttribute(false)]
public: __property CallbackType get_CallbackType();
public: __property void set_CallbackType( 
   CallbackType value
);

[C++/CLI]
[DefaultValueAttribute()]
[BrowsableAttribute(false)]
public:
property CallbackType CallbackType {
   CallbackType get();
   void set (CallbackType value);
}

Return Type

A CallbackType that represents the mechanism used for callbacks by the PowerWEB control.

Remarks

The optimal approach is CallbackType.XmlHttp. The first fallback approach is CallbackType.Flash. The final fallback is CallbackType.IFrame.

Defaults to CallbackType.AutoDetect. On the initial page load, CallbackType is set to the most appropriate value based on the browser type detected.

Set to override when auto-detection is insufficient. For example, if the browser has ActiveX turned off, XmlHttp and Flash will fail. However, the PowerWEB controls will not be aware of this, because this setting cannot be detected server-side. A developer can determine if ActiveX is off and set to IFRAME to provide a decent callback approach.

Requirements

Platforms: Windows 98, Windows NT 4.0, Windows ME, Windows 2000, Windows XP, Windows Server 2003, Windows Vista

See Also

HtmlBox Class  | HtmlBox Members