Asp.net - Add An Item To The Collection The Listbox Is Not Updated?
Jan 9, 2011
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.
[code]...
Beyond this, I have a simple textbox and button on a page.When a name is entered into the textbox,and the button is clickedI call the addBlog(passing in name from textbox) sub routine in the ITRSBlogs Class (back up the page a bit) to add the item to the collection.Problem is,when I add an item to the collection,the listbox is not updated.I'm new to Observable Collections (and many other things : ),so maybe I'm just really off here.
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Sep 24, 2010
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Oct 21, 2010
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[Code]....
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Mar 23, 2011
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Feb 8, 2010
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It is very similar to this thread: [URL]
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Aug 3, 2010
regarding this scenario..
I have a listbox, i am binding it to a datatable with DataTextField and DataValueField. This is in WebForm (not windows).And the first item in ListBox is "Select All" and the rest are from DataTable.SelectAll is selected by default.1) If i select any other item...(as it is multiselect) the "select all" item should be unselected.2) If i select 5 items in ListBox and after that i select "Select All" items then all the other items except "Select All" item should be unselected.
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Sep 9, 2010
I have a textbox that searches the listbox below it and selects the text that I types in the textbox. Now although the item is selected in the listbox I have to scroll to the end to see if the item is selected ornot
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Jul 21, 2010
how can i check with jquery that an item is selected or not in listbox?
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Nov 17, 2010
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