![]() ![]() This can be done using the text property. You can get the selected item from your combobox. When you run the code, the combobox control should be as shown below: For example, to set the default selected gender to Male, you can use the following statement: ComboBox1.SelectedItem = "Male" You can achieve this via the SelectedItem() method. You may need to set the default item that will be selected when the form is loaded. The items were successfully added to the combobox control. Step 6) Click the Start button from the top toolbar and click the dropdown icon on the combobox. Step 5) Once done with typing the items, click the OK button. This is where you should add items to the combobox, as shown below: Step 3) Click the … located to the right of (Collection). Step 2) Move to the Properties window and view the Items option. Step 1) Open the design tab and click the combobox control. We can also choose to add items to the combobox at design time from the Properties window. Let us demonstrate this by adding two items to the combobox, Male and Female: ("Male") To add an item to a combobox control, we use the Items property. ![]() You will be moved from the design tab to the tab with code. Handler(this, new Propert圜hangedEventArgs(property)) Now that we have created a combobox, let us demonstrate how to add items to it.ĭouble click the combobox control that you have added. Private void RaisePropert圜hanged( string property = "") Public event Propert圜hangedEventHandler Propert圜hanged Notify property changed stuff for binding purpose SelectedOption = suggestions.FirstOrDefault() List suggestions = Options.Where(s => s.ToLower() = text).ToList() įor (int i = 1 i s.Length > i & s.ToLower() = text).ToList() * that the selected option may have changed generate some content for the combobox So in the code-behind I put a view model in the DataContext of the page : public sealed partial class MainPage : PageĪnd here is my view model where the logic happens : public class MainViewModel : INotifyPropert圜hanged I have a page with a ComboBox and a TextBox (but it doesn't have to be visible necessarely, you can just listen to the keypress events). You could use the SelectedItem property of the ComboBox control. If you want to catch all the events you'll have to listen to the KeyDown event on the Page also. Not that this will only catch events when the ComboBox has the focus (whether it is opened or closed). Private void Combobox1_KeyDown_1(object sender, KeyRoutedEventArgs e) public sealed partial class MainPage : Page Protected override void OnKeyDown(KeyRoutedEventArgs e)Īnd the code behind. The ComboBox KeyDown event is raised => raise a BetterKeyDown event instead. ![]() Void BetterComboBox_KeyDown(object sender, KeyRoutedEventArgs e) A ComboBoxItem raised a KeyDown event => raise a BetterKeyDown event instead. ((ComboBoxItem)element).KeyDown += BetterComboBox_KeyDown Protected override void PrepareContainerForItemOverride(DependencyObject element, object item)īase.PrepareContainerForItemOverride(element, item) It's the perfect time to add a KeyDown eventhandler on each item on the fly. When the ComboBoxItems are builded (when you open the combobox for the first time) A new event which will be raised even if an item is selected. Here is how to fix it: public class BetterComboBox : ComboBox ![]() An item should have a purple background (the selected one). The KeyDown event is raised.ĥ/ Now select a value. Ok I figured out what was going on. It's not the Combobox who swallows the key down event, but the ComboBoxItem containing the selected item !ġ/ Register a KeyDown eventhandler on the Combobox and put a breakpoint in the eventhandler.ģ/ Open the combobox without selecting any value.Ĥ/ Press a key. ![]()
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