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BOOK: Beginning ASP.NET 4 : in C# and VB
This is the forum to discuss the Wrox book Beginning ASP.NET 4: in C# and VB by Imar Spaanjaars; ISBN: 9780470502211
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Old June 23rd, 2012, 09:33 PM
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Default User Control not working correctly

Hi Imar,

Can you please take a look?


Each record is displayed using a user control. I have the delete button embedded in the user control.

Recreate Problem: click the first DELETE button, the last row gets deleted; after this I have to click the delete button (any of them) twice to make it work.

1) Is it bad practice to use a User Control (combined with a placeholder) to display a bunch of records? I query to get all records and then use a Foreach loop to populate each User Control and insert each UC into the placeholder.

2) Why does the Delete button not respond correctly?
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Old June 24th, 2012, 04:54 AM
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Hi there,

What'sthe reason you're using User Controls in a foreach loop? Why not simply use something like a ListView to present each item?

Using a UC is not a bad practice per se, but you'll run into all kinds of problems including state (you'll need to recreate the tree after a postback for example).

>> Why does the Delete button not respond correctly?

Don't know. I am not allowed to use my psychic skills here so it'll be impossible to say anything useful without seeing relevant code ;--)

Finally, since this is not related to my book, can we continue this discussion in a general ASP.NET cateogy: http://p2p.wrox.com/asp-net-4-539/


Imar Spaanjaars
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Author of Beginning ASP.NET 4.5 : in C# and VB, Beginning ASP.NET Web Pages with WebMatrix
and Beginning ASP.NET 4 : in C# and VB.
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