Why only specific controls are inherited from IPostBackDataHandler Interface in asp.net

Posted by Rajesh Rolen- DotNet Developer on Stack Overflow See other posts from Stack Overflow or by Rajesh Rolen- DotNet Developer
Published on 2010-06-01T10:42:30Z Indexed on 2010/06/01 10:43 UTC
Read the original article Hit count: 254

Filed under:

Please tell me why some specific controls are inherited from IPostBackDataHandler interface (which maintains their state using HTTP Post header). and if state of controls like textbox are maintained by HTTP post headers then why they have property "View state" and what is use of it?.

Related posts about viewstate

Failed to load viewstate.The control tree into which viewstate is being loaded...etc

as seen on ASP.net Weblogs - Search for 'ASP.net Weblogs'
Two days ago,a colleague of mine tried to publish an asp.net website (which is built in VS2008 using framework 3.5) to our server,he configured everything in IIS (he made sure that the selected asp.net version is 2.0) and launched the website..at first it was working great but when he tried to click… >>> More
ASP.NET: Compress ViewState

as seen on Stack Overflow - Search for 'Stack Overflow'
What are the latest and greatest ways to compress the ASP.NET ViewState content? What about the performance of this? Is it worth it to keep the pages quick and minimize data-traffic? How can I make: <input type="hidden" name="__VIEWSTATE" id="__VIEWSTATE" value="/wEPDwUKMTM4Mjc3NDEyOWQYAQUeX19Db250cm9sc1JlcXVpcmVQb3N0QmFja0tleV9fFgkFLGN0b DAwJENvbnRlbnRQbGFjZUhvbGRlcl9NYWluQ29udGVudCRSYWRCdXQxBSxjdGwwMCRDb250ZW50UGxhY2VIb 2xkZXJfTWFpbkNvbnRlbnQkUmFkQnV0MQUsY3RsMDAkQ29udGVudFBsYWNlSG9sZGVyX01haW5Db250ZW50J FJhZEJ1dDIFLGN0bDAwJENvbnRlbnRQbGFjZUhvbGRlcl9NYWluQ29udGVudCRSYWRCdXQyBSxjdGwwMCRDb 250ZW50UGxhY2VIb2xkZXJfTWFpbkNvbnRlbnQkUmFkQnV0MwUsY3RsMDAkQ29udGVudFBsYWNlSG9sZGVyX 01haW5Db250ZW50JFJhZEJ1dDQFLGN0bDAwJENvbnRlbnRQbGFjZUhvbGRlcl9NYWluQ29udGVudCRSYWRCd XQ0BSxjdGwwMCRDb250ZW50UGxhY2VIb2xkZXJfTWFpbkNvbnRlbnQkUmFkQnV0NQUsY3RsMDAkQ29udGVud FBsYWNlSG9sZGVyX01haW5Db250ZW50JFJhZEJ1dDXz21BS0eJ7991pzjjj4VXbs2fGBw=="… >>> More
ViewState content when there are no controls on the page

as seen on Stack Overflow - Search for 'Stack Overflow'
When you create an ASP.NET page with no controls and runs it, a view state hidden field is added. Looking at what's in it (with ViewStateDecorder) reveals that there's a single value there that contains a number. My question is - what is this number? P.S. I guess this value appears on every page… >>> More
How to use a viewstate'd object as a datasource for controls on a user control

as seen on Stack Overflow - Search for 'Stack Overflow'
I've got a listview on a control. Each row comprises a checkbox and another listview. The outer listview is bound to a property on the control (via a method call, can't set a property as a SelectMethod on an ObjectDataSource it would appear) which is lazy loaded suchly: Public ReadOnly Property… >>> More
Web Application : How to upload multiple images at a time

as seen on Samir ASP.NET with C# Technology - Search for 'Samir ASP.NET with C# Technology'
//First add image control into the web form how many you want to upload images at a time //Add one button //Write the below code into the button_click event if (FileUpload1.HasFile) { string imagefile = FileUpload1.FileName; if (CheckFileType(imagefile) == true) { Random rndob = new Random(); int… >>> More

Developer IT

Why only specific controls are inherited from IPostBackDataHandler Interface in asp.net - Developer IT

Why only specific controls are inherited from IPostBackDataHandler Interface in asp.net

ASP.NET

viewstate

Related posts about ASP.NET

Migrating ASP.NET MVC 1.0 applications to ASP.NET MVC 2 RTM

April 14th Links: ASP.NET, ASP.NET MVC, ASP.NET Web API and Visual Studio

Use ASP.NET 4 Browser Definitions with ASP.NET 3.5

ASP.NET webforms + ASP.NET Ajax versus ASP.NET MVC and Ajax framework freedom

ASP.NET MVC 2 Released

Related posts about viewstate

Failed to load viewstate.The control tree into which viewstate is being loaded...etc

ASP.NET: Compress ViewState

ViewState content when there are no controls on the page

How to use a viewstate'd object as a datasource for controls on a user control

Web Application : How to upload multiple images at a time

Categories cloud