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How to build a dynamic matrix

Posted on 2013-11-11
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Last Modified: 2013-12-22
Hello experts,

I have been tasked with recreating some paper forms to make them electronic.

One form is essentially a dynamic matrix. The current form is an excel spreadsheet. Depending on the data retrieved, the number of rows and columns is dynamic.

I can retrieve the number of rows and columns by querying the db.

I have tried to recreate the form by using <asp:Table />. I can make the form look pretty good (see attached) but I run into all kinds of trouble with losing dynamic controls on postback and assigning unique ids.  I have been at this for two days but other than a pretty form... not much success.

Maybe I am tired and I am taking a completely wrong approach.  Please advise.

Vince
matrix.jpg
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Question by:vstack
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Expert Comment

by:Bob Learned
ID: 39641508
If you are creating dynamic content, you need to recreate them on post-back, at the correct place in the page life-cycle, so that view state and other such things can get processed.
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Author Comment

by:vstack
ID: 39641666
Yes... the dynamic content must be recreated if I use the <asp:Table /> since I need dropdowns that the user selects from. This needs to be persisted back to the db.

This is a lot of work, recreating everything in page load or init and though I have had some success, it just doesn't feel right and it's buggy.

Perhaps, I will take a step back to allow the user, by selecting, dropdowns in another format, then persist this to the db then just create a read only form for the 'spreadsheet' look.

I was hoping to accomplish the editable 'matrix' using gridview or nested repeaters but so far it is proving to be a frustration.

Thanks

Vince
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LVL 96

Expert Comment

by:Bob Learned
ID: 39642231
If you need a "spreadsheet" control, would you have the capability for a component, like Component One, Infragistics, or would you need something free?
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Accepted Solution

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vstack earned 0 total points
ID: 39678770
I don't need a spreadsheet control. I have solved the issue by filling the matrix from other pages and presenting a 'read only' matrix.
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Author Closing Comment

by:vstack
ID: 39734483
Though I appreciate the responses, none of the responses applied to my situation.
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