Save WebControl object In viewstate

i did it but there is no change

hai srini,
this is what my problem,

i am creating a simple datagrid control ,after rendering, the control should work from javascrip for adding row and deleting rows.
finaly total changes in grid needs to update

My ideas on solving the problem would be

to add a row you could use the AddNew row method on the dataset table with blank values and then bind the grid again to the dataset , then change the edititemindex to the row index added will give you the same as edit but with blank input controls

I guess you should use a popup window to add a row and when the data is entered and submitted you can refresh the parent window with javascript from the popup window on close of the window. This popup window can also be a frame in the same page at the bottom of the grid thats your choice if you do not want popup windows

You can render add button for each row in the itemcreated event of the datagrid and have a javascript function added to there onclick attributes.

For delete it doesnt make sense for javascript to be used as you have to do a postback anyway

Update is the same as the addnewrow not very different

Hope this helps

I understand that a datagrid with some heavy data can be really slow. The flicker you are talking about is the post back. This is exactly where custom paging comes into play and makes the grid efficient, try to query records you need on a page only do not try to hold information that is not required for a page in viewstate

There is an article on Code project on custom paging see if thats a route that helps.
As for javascript its going to be a nightmare for you to access the controls in the columns of the grid programmatically because the grid renders the child controls and there ids. In javascript you either need the name or the id of the element to get the instance so think about it..