selecteditem

问题 I had used a ListView to show some data (String) retrieved from the database...quite simple, but one of my cooworkers decided to put an image in front of the text in the screen. We were not able to do it with Listview, but we found some example with GridView that looked exactly as we need then we spent some time using GridView and did put the image in the front of the text. Now, unfortunately we don't know how to get the selected item (based on the Text that comes from the item selected) I'm

问题 When I use ComboBox or other controls that have ItemsSource and SelectedItem property bindings then each time upon the initial binding during runtime and also each time when the bound collection to ItemsSource changes I experience that the content of bound SelectedItem object is changed. How can I disable this? For example: I have <ComboBox MinWidth="300" ItemsSource="{Binding AvailableMasters}" SelectedItem="{Binding SelectedMaster}"> When I run the application the SelectedMaster property is

问题 I have a WPFToolkit-datagrid and a View-model class with a property - "SelectedGridItems" How do I bind selectedItem property of WPFToolkit-Datagrid to my viewmodel property ("SelectedGridItems") ? 回答1: Here is an attached property that hooks to the SelectionChanged event of the ListBox and populates a list of selected items to the ViewModel. You can simply change "ListBox" to "DataGrid". http://marlongrech.wordpress.com/2009/06/02/sync-multi-select-listbox-with-viewmodel/ Edit: Adding source

问题 I have a WPFToolkit-datagrid and a View-model class with a property - "SelectedGridItems" How do I bind selectedItem property of WPFToolkit-Datagrid to my viewmodel property ("SelectedGridItems") ? 回答1: Here is an attached property that hooks to the SelectionChanged event of the ListBox and populates a list of selected items to the ViewModel. You can simply change "ListBox" to "DataGrid". http://marlongrech.wordpress.com/2009/06/02/sync-multi-select-listbox-with-viewmodel/ Edit: Adding source

问题 I wrote a quick application for an article on CodeProject (full article here. You can download the source code for this question directly from here). It's a very simple window that has a ListBox with simple objects (3 properties: 2 strings, 1 int). public class MyShape { public string ShapeType { get; set; } public string ShapeColor { get; set; } public int ShapeSides { get; set; } } I'm setting the SelectedValuePath in the code behind so a user can select a property from a combobox, and see

问题 I am searching for hours to fix a simple problem. I wanted to work with "SelectedItem" on my menuItems, but after hours of stackoverflow I saw that's impossible. I found a lot about "CommandParameter" but I don't understand how it works. This is what I want to do: I have a menu with "background1, background2,..." . If you select a background in the menu, I want to set that selected background as background. It's a schoolproject, so we have to use MVVM and no codebehind is allowed. How can I

问题 I am using this code to add a value to a combobox different then the one displayed: how to add value to combobox item Lets suppose i have 3 values in my Combobox: item 1 item 2 item 3 If i chose item 2 from the dropdown the code in the link works. But if i TYPE item 2 manually it doesnt work because i think that typing it only sets the combobox1.text value and not the combobox1.selecteditem . I can type a value present in the dropdown, or one not present. If i type one that is present, then

问题 i would like know how can i add a style when a item of the listbox is selected. I have the following listbox: <ListBox x:Name="ListBoxDays" VerticalAlignment="Top" ItemTemplate="{StaticResource WeekDayTemplate}" ItemsSource="{Binding WeekDayList}" /> And i also have a DataTemplate to the listbox. <phone:PhoneApplicationPage.Resources> <DataTemplate x:Key="WeekDayTemplate"> <StackPanel x:Name="stackPanel" Orientation="Horizontal" Width="400" Margin="12,0,0,10" Height="100" > <StackPanel

问题 We want to set the SelectedItem of a ListBox programmatically and want that item to then have focus so the arrow keys work relative to that selected item. Seems simple enough. The problem however is if the ListBox already has keyboard focus when setting SelectedItem programmatically, while it does properly update the IsSelected property on the ListBoxItem , it doesn't set keyboard focus to it, and thus, the arrow keys move relative to the previously-focused item in the list and not the newly

问题 I am using a ComboBox in my WPF application and following MVVM. There is a list of strings which I want to show in my ComboBox. XAML: <ComboBox ItemsSource="{Binding ItemsCollection}" SelectedItem="{Binding SelectedItem}" /> View Model: public Collection<string> ItemsCollection; // Suppose this has 10 values. private string _selectedItem; public string SelectedItem { get { return _selectedItem; } set { _selectedItem = value; Trigger Notify of property changed. } } Now this code is working