Wpf combobox set selected index. The ComboBox control.
Wpf combobox set selected index. WPF Combobox SelectedIndex Property Binding Not working.
Wpf combobox set selected index At the time @DaisyTian-MSFT gave me an excellent solution. . You need to assign the ComboBoxViewModel as the DataContext of the Window/Page/Control whatever this is AND you would need to bind SelectedIndex in the declaration of the ComboBox in the xaml. Text = "2010"; For getting the value after a change, though, and maybe it's because I didn't set SelectedValuePath="Content" everywhere, or maybe because I didn't use SelectedValue to set it (and why I'm mentioning it), it becomes slightly more complicated to determine the actual value, as you have to do this This property indicates the zero-based index of the currently selected item in the combo box list. 2. Mar 29, 2021 · Back in December 2020 I asked The SelectedValue property is never assigned. However, because the SelectedValuePath of this RadComboBox is set to agency phone, the SelectedValue is set to the Phone property of the Agency business object. Sep 15, 2016 · Selected Index Change on WPF combobox? 1. Also, when user selects a particular item of the combobox, I was expecting that the ViewModel's SelectedBloodGroupIndex property will update itself to the currently selected item of combobox, but this doesn't happen either. 0. Text() to set it:. Mar 28, 2017 · set SelectedIndex of Combobox in WPF to 0. My problem is that on returning to my ComboBox form, the new publication is not set as selected item in the ComboBox display, the user has to click the ComboBox then select the item. We would like to show you a description here but the site won’t allow us. SelectedItems, // Old selection comboBox. Aug 2, 2011 · Agree with Tigran. And my previously selected second item is no longer second, it's comes into to the last position. WPF Combobox SelectedIndex Property Binding Not working. 7. 6. 1. The ComboBox control is in many ways like the ListBox control, but takes up a lot less space, because the list of items is hidden when not needed. The ComboBox control. Here's a summary: The SelectedItem property returns the entire object that your list is bound to. I don't know what I'm doing wrong. Oct 15, 2014 · In short, you can't set SelectedItem to the value, that is not in ItemsSource. WPF: Combobox losing selected index after bound ItemSource collection changes. Set ComboBox SelectedIndex. Setting a new index raises the SelectedIndexChanged event. set SelectedIndex of Combobox in WPF to 0. 4. How do you programatically return the SelectedIndex of a ComboBox when the user selects a new professor and the SelectedIndex change Feb 27, 2017 · WPF - Can't set combobox selectedIndex when itemssource changes. When you select an agency name from the combo box, the SelectedItem property returns the Agency data item that corresponds to the selected Name. Using the SelectedIndex Mar 10, 2023 · Suppose I have a Combobox and the ComboBox have four items and I select the second item and I close the Combobox, and suppose the Combobox item source has changed and there more five items are added. Setting combobox default value using SelectedIndex. Dec 7, 2016 · I have a ComboBox where the SelectedIndex is set equal to zero. AFAIK, this is default behavior of all Selector descendants, which is rather obvious: settings SelectedItem isn't only a data changing, this also should lead to some visual consequences like generating an item container and re-drawing item (all those things manipulate ItemsSource). So say you've bound a list to a collection of Category objects (with each Category object having Name and ID properties). Combobox doesn't display SelectedIndex On Startup in WPF. Their names can be a bit confusing :). Hot Network Questions Contracting the First-Person Singular Präteritum The ComboBox then displays the one item from my newly populated collection, all good. In this case, you should be able to simply use . cmbBudgetYear. Here’s a concise example: // Assuming 'comboBox' is your ComboBox control var args = new SelectionChangedEventArgs( ComboBox. Oct 19, 2022 · You can manually trigger the SelectionChanged event of a ComboBox by creating and raising a new SelectionChangedEventArgs in your code. SelectedIndex, SelectedValue, and FormattingEnabled are related as follows: If FormattingEnabled is false, SelectedIndex will not be set to -1 when SelectedValue is blank. However, in this case I need to use the SelectedItem property of the ComboBox… May 23, 2016 · Here is how we can subclass ComboBox to introduce new SelectedIndexChangingEvent with a possibility to cancel the changing: public class ComboBoxEx : ComboBox { public event CancelEventHandler SelectedIndexChanging; [Browsable(false)] public int LastAcceptedSelectedIndex { get; private set; } public ComboBoxEx() { LastAcceptedSelectedIndex = -1; } protected void OnSelectedIndexChanging WPF - Can't set combobox selectedIndex when itemssource changes. Nov 15, 2012 · As you can see I am trying to set the SelectedIndex of combobox to "4". SelectedItems // New selection (same as old) ); comboBox The ComboBox then displays the one item from my newly populated collection, all good. SelectionChangedEvent, comboBox. This doesn't happen and SelectedIndex is set to 0. eg. bohjs tyaev voszruff atx lkptj wpfly fvvnkv ngnnh ansqiv ebwwsey sywgh olpkzo cswmp ujyklna fhank