Composite Control with complex properties

Question

User-965962254 posted

How do I expose databinding to one of the properties in a complex object?  This complex object is in a separate class with a type converter inheriting an expandable object converter.

This is the error I get when drop the composite control inside a formview and declarative bind one of the complex object property.

Error Creating Control

Databinding expressions are only supported on objects that have a DataBinding event. Iml.Web.UI.WebControls.TextBoxSettings does not have a DataBinding event.

Thanks.

 

Answer 1

User-1635004338 posted

Hi dotnetster,

Here are some good articles about how to create a databinding custom control:

http://weblogs.asp.net/palermo4/archive/2007/01/10/creating-a-custom-databound-templated-control-in-asp-net-2-0.aspx

http://aspalliance.com/391_Custom_Data_Binding_for_Server_Controls

http://msdn.microsoft.com/en-us/magazine/cc163505.aspx

Thanks,

Answer 2

User-965962254 posted

Thanks Qin.  Nice articles.  This article helps as well - http://msdn.microsoft.com/en-us/library/ms178657.aspx 

Answer 3

User-965962254 posted

How do I make the determination if a composite contol is being data bound or is a stand alone control (ie. not inside a databoundcontrol such as a FormView) ?