Keep expanded nested Gridview after postback

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For Expand and Collapse of the Child GridViews I have made use of jQuery.

$("[src*=plus]").live("click", function () { $(this).closest("tr").after("" + $(this).next().html() + "") $(this).attr("src", "images/minus.png"); }); $("[src*=minus]").live("click", function () { $(this).attr("src", "images/plus.png"); $(this).closest("tr").next().remove(); });

I have a button in child grid view to add a new row. After adding it, it will collapse. I want to expand it after adding new row.. only need to collapse while clicking on collapse button. Adding rows in server side.

I want after the postback to keep it expanded .

please help me..

Thanks in advance..

vineetha..

Posted 24-Jul-14 7:52am

Vineetha Ravindranath

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Sergey Alexandrovich Kryukov · Answer 1 · 2014-07-24T15:57:00

Basically, you need to develop some data class which carries the expanded status of each item. It should be serializeable. Then you can pass it through a view state variable. See, for example:
http://asp.net-tutorials.com/state/viewstate[^],
http://msdn.microsoft.com/en-us/library/7ay27kt9%28v=vs.110%29.aspx[^],
http://msdn.microsoft.com/en-us/library/system.runtime.serialization%28v=vs.110%29.aspx[^].

You need to make it possible to store the whole set of expanded states of all your grid view with all its nested controls, into such a view state object, where it will be serialized. When you read this object from the view state variable, it will be deserialized, and then you will need to restore the state of the grid view.

—SA