DataSource Controls :: Updating A Listbox With Updated Parameters?

Feb 22, 2010

A ListBox is being filled from the database, from a SQLDataSource. Im setting the parameters in its _Selecting event. Except when it is done getting its new Data, the ListBox isn't updated with this new data. Eventhough i rebind my ListBox to the DataSource.

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There are quite a few questions around this topic,but I can't seem to get it figured out.I'm trying to bind a listbox to an ObservableCollection and keep the listbox updated when items are added to the collection.


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I have a webservice - called MyCompany.WebService1

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Jun 2, 2010

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here is my code for selectiong some records from db table

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I am currently working with a large query of client name, and instead of using a dropdownlist, I have done the follow:

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I have a DB in which looks like this:

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Pass Parameters From A ListBox To A DataGrid?

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I am trying a programming example, which I saw in a book, in an attempt to learn ASP.NET and figure out how to pass parameters to a simple query. Here is my HTML:


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I need to populate a listbox with queries from 2 sql tables, but I can only see how to populate it with 1 datasource.

Do I need to do some hand coding? If so, where should I put it?

I'd also like to add some text items to the listbox so I could say populate the listbox with a query, plus an "other" option, so that if "other" is selected, a textbox will appear that will let the user specify a new item.

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I need a program that lets me enter the name of an item to swap and adds it to an array list when a button Add is pressed.

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I am looking for a way to groupby a listbox. I get some of my listitems from the database with this linq query:


But i tried to make it here groupby but cant seem to get it work. It must groupby for : product.Vendor
Here is the listbox code:


If anyone know the answer for this i would be very happy. Also here is screenshot for what i want to do:

The "Wrong" part is what i get now, but i want it like the "Good" part.

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DataSource Controls :: Updating The Database Using

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Updating the database using

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