combobox

问题 I would like to add records after the initialization of a store. I tried loadData(), loadRawData(), add() but nothing seams to work. Here is my jsfiddle: http://jsfiddle.net/charlesbourasseau/zVvLc Any ideas ? 回答1: You need to set queryMode: 'local' in the combo box. Minimal example: Ext.onReady(function() { var store = Ext.create('Ext.data.Store', { alias: 'store.ModeStore', autoLoad: false, fields: [{ name: 'mode', type: 'string' }, { name: 'id', type: 'string' }], data: [{ mode: 'mode1',

问题 Consider I have Key Value Pair Collection (Ex Key=MSFT Value=MSFT Microsoft) which I bind to the ComboBox. DisplayMemeberPath=Value. the Following needs to be accomplished On Selection of a Item only the Key needs to be displayed in Combo, the user could also type a brand new value in the Combo. I cant come up with the solution that supports both these features. Solving one breaks the other. <ComboBox IsTextSearchEnabled="True" Name="cmbBrokers" IsEditable="True" ItemsSource="{Binding

问题 Consider I have Key Value Pair Collection (Ex Key=MSFT Value=MSFT Microsoft) which I bind to the ComboBox. DisplayMemeberPath=Value. the Following needs to be accomplished On Selection of a Item only the Key needs to be displayed in Combo, the user could also type a brand new value in the Combo. I cant come up with the solution that supports both these features. Solving one breaks the other. <ComboBox IsTextSearchEnabled="True" Name="cmbBrokers" IsEditable="True" ItemsSource="{Binding

问题 I am trying to work around changing the color of highlighting in a ComboBox dropdown on a C# Windows Forms application. I have searched the whole web for an answer, and the best option i found so far was to draw a rectangle of the desired color when the item that is selected is being drawn. Class Search { Public Search() { } private void addFilter() { ComboBox field = new ComboBox(); field.Items.AddRange(new string[] { "Item1", "item2" }); field.Text = "Item1"; field.DropDownStyle =

问题 I am new to PyQT. I am interested to add a combobox to the each row of tableView. Is it possible in PyQT 4? I know, it is possible in QT5, but not sure about PyQT. Thank you in advance for help. 回答1: Does this need to be done using a QTableView or can you do it using a QTableWidget? Making the assumption that you can use the Widget vs the View, you can easily add a combobox (or any widget) to a cell. class MainWindow(QtGui.QMainWindow): def __init__(self, parent=None): QtGui.QMainWindow._

问题 Ok been working with WPF for a while but I need some help. I have a ComboBox like below: <TabControl> <TabItem Header="1"> <ComboBox ItemsSource="{Binding MyList}" SelectedItem="{Binding MyListSelection}"/> </TabItem> <TabItem Header="2"/> </TabControl> Whenever I move away from tab 1 and then come back to it the selection gets removed. I think the reason for that is that the controls get destroyed when they go out of scope and then back in. But in the process of that the SelectedItem becomes

问题 I am trying to look for a simple way to design a winform with a combobox that has checkbox values in it to select multiple values. But there are no free samples I could find. If anybody has a good link for a sample which does not require a license. Please let me know. I am not looking for controls like telerik and infragistics. 回答1: Maybe this example can help you. CheckBox ComboBox Extending the ComboBox Class and Its Items 回答2: It sounds like what you really want is a checked listbox

问题 I'm using the MVVM pattern with WPF and have run into a problem, which I can simplify to the following: I have a CardType model. public class CardType { public int Id { get; set; } public string Name { get; set; } } And I have a viewmodel that consumes CardType. public class ViewModel : INotifyPropertyChanged { private CardType selectedCardType; public CardType SelectedCardType { get { return selectedCardType; } set { selectedCardType = value; OnPropertyChanged(nameof(SelectedCardType)); } }

问题 I'm using the MVVM pattern with WPF and have run into a problem, which I can simplify to the following: I have a CardType model. public class CardType { public int Id { get; set; } public string Name { get; set; } } And I have a viewmodel that consumes CardType. public class ViewModel : INotifyPropertyChanged { private CardType selectedCardType; public CardType SelectedCardType { get { return selectedCardType; } set { selectedCardType = value; OnPropertyChanged(nameof(SelectedCardType)); } }

问题 The SelectedIndexChanged event gets fired in my application from a combo box when: the user chooses a different item in the combo box, or when: my own code updates the combo box's SelectedItem to reflect that the combo box is now displaying properties for a different object. I am interested in the SelectedIndexChanged event for case 1, so that I can update the current object's properties. But in case 2, I do not want the event to fire, because the object's properties have not changed. An