RadioButtonlist server control

Question

User-1773948845 posted

 

When i see the details of RadioButtonlist control in the following i find many things which i am not able to understand.

http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.radiobuttonlist_members(vs.71).aspx

RadioButtonList Constructor - >public RadioButtonList(); ? what i want to know to is how to use it and when to use it.

AccessKey (inherited from WebControl) ? i know how to use "AccessKey" But what does it mean "inherited from webcontrol

CellPadding ? i dont find this property is inherited from any class.Why is it like that.

DataMember (inherited from ListControl) ? i know what is a datamember ? But inherited from listcontrol. i know that listcontrol is a class which as listitem

Public Methods

DataBind (inherited from Control) ? i know about databind but still not known "inherited from control"

Public Events

Load (inherited from Control) could understand what is load event. but how exactly this is used and how an application can be benfitted.

Protected Properties

TagKey (inherited from WebControl). how to see this protected porperty in vs 2003 when i add the radiobuttonlist to the form.

 

Explanation to these controls will make to us understand the basic functionality and the common mistakes could be avoided

 

Answer 1

User-294030300 posted

Hey,

The public constructor is useful when you are creating a radiobuttonlist in a custom control, or if you are dynamically adding it to the page.  If you create a radiobuttonlist in the ASPX markup, the constructor will be called for you, so you don't need to manually create the object.  "Inherited from Control|Web Control" means exactly that; that the property was defined in the WebControl or Control class, which RadioButtonList inherits from.  CellPadding is a property used to allow spacing between each radio button entry.  Datamember is a property that you specify for objects like the dataset.  DataSet can have multiple tables, and datamember allows you to specify the name of the table you want to bind to.  Load fires whenever the control is loaded, so if you need to do something after the control is loaded, you can tap into this event, then perform whatever you need to do.  I don't usually use it at all at the control level, but at the page level.  TagKey is the name of the html tag that the radiobuttonlist represents.  Being protected, that is something you can't change and don't really need to worry about it anyway.

Answer 2

User-1773948845 posted

 

is it possible to find the how the web control and control class is defined.

 

Answer 3

User-294030300 posted

Sure, look in the documentation, or use a tool like Reflector.  If you google Reflector, it comes right up.  It's a very, very good tool to help you understand the .NET framework.

Answer 4

User445179017 posted

For most of your questions, you need to know what is Inheritance.

Check these articles

http://www.4guysfromrolla.com/webtech/022001-1.shtml
http://west-wind.com/weblog/posts/3016.aspx

Thanks

Answer 5

User-1773948845 posted

 

is Reflector tool is online or work withs visual studio.

please tell how Reflector is used.

 

Answer 6

User445179017 posted

Reflector is a tool by Lutz Roeder and you can find it here http://www.aisto.com/roeder/dotnet/

Thanks