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Questions tagged [itemssource]

374 questions
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ComboBox ItemsSource has a different datacontext from SelectedItem

I have ComboBox where I get my ItemsSource from my "Settings" object with the UserTypes ObservableCollection inside, and I need to bind its SelectedItem to my "Employee" object's type property. There are other fields within the window, which binds…
Erika
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Creating a databound control through c# code?

I know that in XAML it's possible to create data templates with code so you can style & bind controls to your liking: …
Joel Murphy
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Updating ListBox causes delay

I want to display a ListBox with around 10 items in it. Every time I update it by adding an item to a List it causes a little but noticeable delay and the UI freezes for a little while. I also tried using an ObservableCollection instead of a List as…
Stacksatty
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Unable to update listbox from database

In my application I have listBox and its items source is ObservableCollection, but when I add data, this listBox won't update. In constructor i use: listBoxPersons.ItemsSource = UserContacts; and user UserContacts is static ObservableCollection,…
Timo
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Listview show data issue

I have created a "Listview" and a "Gridview" to show some data, and everything looks fine, but whenever I add data to the "Listviews ItemsSource", it doesn't show it, the only thing I can see are marked lines (see below). The XAML code for the build…
user1845777
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WPF - Itemssource in a Button

everyone, I would like to add an Itemsource to a button so that I can access the sub-values. If I do the whole thing with ItemsControl, I get a button for each value. However, I only need one button. Can i limit this? My Output: 30 Buttons -> I need…
Sascha
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Same ItemsSource in multiple ComboBox elements, SelectedIndex synced for all ComboBox elements, want separate

I have multiple ComboBox elements. Each ComboBox's ItemsSource is bound to the same property. That property is a ListCollectionView whose underlying list is an ObservableCollection. Each ComboBox's SelectedIndex is bound to a different property. …
dkalkwarf
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WPF Datagrid -- How to force commit of data in row?

How can I force a commit when a datagrid row loses focus as opposed to requiring the user to press return to commit? I have a MVVM project with a main DataGrid using a RowDetailsTemplate that contains another sub DataGrid. It uses the default…
AdvApp
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WPF ItemsSource binding show only last item of list

How to show only last item of the list in itemssource binding ? below is my current code. xaml
sigmax bpo
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How to eject the class fields from control?

I have my own user control. This control's code:
user8710232
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Link ListView Items to Individually Different Lists

I've defined a ListView where each item is displayed with a read-only (i.e. selection-only, no TextBox) ComboBox (as per the ItemTemplate). There is a given list of possible items that can be chosen from each of these combo boxes. The caveat,…
O. R. Mapper
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Read .txt file to listbox without ItemsSource binding OR remove binding without clearing the listbox of the lines

I'm fairly new to C# but understand basic concepts. I'm currently working on a Uni assignment where I have to have multiple textboxes be entered as a single entry in a listbox, then save all entries to a text file. I also need to be able to load the…
Joshua Hughes
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C# ItemsSource for ComboBox with inheritance

I've got a List like: List personList; In this list are objects that inherit from Person: Staff and Manager. I have a ComboBox cmbList. Now I would like to set the source of this ComboBox to the Staff objects from the personList. How…
Benjamin Nopper
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