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Can gridview retain it's data after postback

Posted on 2014-02-26
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Last Modified: 2014-03-25
This question is based on http://www.experts-exchange.com/Programming/Languages/.NET/ASP.NET/Q_28373722.html

I press a button to populate a gridview.  When I press the button again with different parameters, I want the new results to be added as an extra row to the gridview.  I don't want the new results to replace the old.

The gridview is populated by passing parameters to a stored procedure.  Obviously only one set of parameters can be passed at a time.

I'm using vb2008 with asp.net 3.5
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Question by:AlHal2
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Expert Comment

by:Bob Learned
ID: 39892390
What are you using for the data source for the GridView?  If you are using something like the SqlDataSource, then it gets to be challenging.  If you are binding to a list structure or DataTable, then it should be easier.
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by:AlHal2
ID: 39893147
I think I've solved the problem.
I've had a table created which will store the data that gets sent to the gridview.  The stored procedure updates the table and then runs a select query which is sent to the gridview.
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Expert Comment

by:Bob Learned
ID: 39893304
What are you doing with the table when the page posts back?
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AlHal2 earned 0 total points
ID: 39894277
I've incorporated JamesBurger's solution to http://www.experts-exchange.com/Programming/Languages/.NET/Q_28375965.html

The stored procedure does what's necessary then displays the updated table.
That seems to work.
On the other post you talke about some database operations being synchronous, but not all.  Please could you elaborate?
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Author Closing Comment

by:AlHal2
ID: 39952688
It works.
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