Items プロパティ (ComboBoxItemsProvider)

この XamComboEditor のドロップダウン部分で表示される項目を返します。

シンタックス

Visual Basic

'宣言
 
Public ReadOnly Property Items As ItemCollection

C#

public ItemCollection Items {get;}

解説

XamComboEditor のドロップダウンの項目を指定する方法の詳細は、ItemsSource を参照してください。

使用例

XAML

<Window x:Class="XamComboEditorSnippets_cs.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:sys="clr-namespace:System;assembly=mscorlib"
    xmlns:igEditors="http://infragistics.com/Editors"
    xmlns:igDP="http://infragistics.com/DataPresenter"
    Title="Window1" Height="300" Width="300">
    <Window.Resources>
        <ObjectDataProvider MethodName="GetValues"
                            ObjectType="{x:Type sys:Enum}"
                            x:Key="VisibilityValues">
            <ObjectDataProvider.MethodParameters>
                <x:Type TypeName="Visibility" />
            </ObjectDataProvider.MethodParameters>
        </ObjectDataProvider>
        
        <!-- This is an ItemsProvider that can be shared by many XamComboEditors. In this
             example it is just bound to values of the Visibility enum. -->
        
        <igEditors:ComboBoxItemsProvider x:Key="ComboItemsProvider" 
                                         ItemsSource="{Binding Source={StaticResource VisibilityValues}}"/>
    </Window.Resources>
    
    <Grid>
        <DockPanel LastChildFill="True">
            
            <!-- the first XamComboEditor is using the ItemsProvider defined as a shared resource
                 above -->
            
            <igEditors:XamComboEditor x:Name="XamComboEditor1" DockPanel.Dock="Top" 
                                      DropDownButtonDisplayMode="Always"
                                      SelectedItemChanged="XamComboEditor1_SelectedItemChanged"
                                      ItemsProvider="{StaticResource ComboItemsProvider}"/>
            
            <!-- the second XamComboEditor is defining its own ItemsProvider inline
                 and making use of the ComboBoxDataItem helper class to easily define
                 a separate DisplayText and Value for each item. Alternatively,
                 you can set the ItemsSource to any IEnumerable and set the 
                 DisplayMemberPath and ValuePath properties to achieve the same effect. -->
            
            <igEditors:XamComboEditor x:Name="XamComboEditor2" DockPanel.Dock="Top"
                                      ValueType="{x:Type sys:Int32}">
                <igEditors:XamComboEditor.ItemsProvider>
                    <igEditors:ComboBoxItemsProvider >
                        <igEditors:ComboBoxItemsProvider.Items>
                            <igEditors:ComboBoxDataItem DisplayText="Item 1" Value="1"/>
                            <igEditors:ComboBoxDataItem DisplayText="Item 2" Value="2"/>
                            <igEditors:ComboBoxDataItem DisplayText="Item 3" Value="3"/>
                        </igEditors:ComboBoxItemsProvider.Items>
                    </igEditors:ComboBoxItemsProvider>
                </igEditors:XamComboEditor.ItemsProvider>
            </igEditors:XamComboEditor>
            
            <!-- The following shows a XamDataGrid that adds an unbound field that
                 sets its EditorStyle to a XamComboEditor that uses the same shared
                 ItemsProvider that was used above. This leverages the significant 
                 speed and memory footprint advantages of using a single shared 
                 ItemsProvider for each record in the XamDataGrid. Note: this can
                 also be used for standard bound Fields as well.-->
            
            <igDP:XamDataGrid x:Name="XamDataGrid1" BindToSampleData="True">
                <igDP:XamDataGrid.FieldLayouts>
                    <igDP:FieldLayout>
                        <igDP:FieldLayout.Fields>
                            <igDP:UnboundField Name="Visibility Setting" DataType="{x:Type sys:Enum}">
                                <igDP:UnboundField.Settings>
                                    <igDP:FieldSettings EditorType="{x:Type igEditors:XamComboEditor}">
                                        <igDP:FieldSettings.EditorStyle>
                                            <Style TargetType="{x:Type igEditors:XamComboEditor}">
                                                <Setter Property="ItemsProvider" Value="{DynamicResource ComboItemsProvider}"/>
                                                <Setter Property="DropDownButtonDisplayMode" Value="MouseOver"/>
                                            </Style>
                                        </igDP:FieldSettings.EditorStyle>
                                    </igDP:FieldSettings>
                                </igDP:UnboundField.Settings>
                            </igDP:UnboundField>
                        </igDP:FieldLayout.Fields>
                    </igDP:FieldLayout>
                </igDP:XamDataGrid.FieldLayouts>
            </igDP:XamDataGrid>
        </DockPanel>
    </Grid>
</Window>

C#

using Infragistics.Windows.Editors;
using Infragistics.Windows.DataPresenter;


    public partial class Window1 : Window
    {
        public Window1()
        {
            InitializeComponent();

            // the first XamComboEditor is using the ItemsProvider defined as a shared 
            // resource in xaml

            this.XamComboEditor1.ItemsProvider = this.Resources["ComboItemsProvider"] as ComboBoxItemsProvider;
            this.XamComboEditor1.DropDownButtonDisplayMode = DropDownButtonDisplayMode.Always;
            this.XamComboEditor1.SelectedItemChanged += new RoutedPropertyChangedEventHandler<object>(XamComboEditor1_SelectedItemChanged);

            // the second XamComboEditor is defining its own ItemsProvider and
            // making use of the ComboBoxDataItem helper class to easily define
            // a separate DisplayText and Value for each item. Alternatively,
            // you can set the ItemsSource to any IEnumerable and set the 
            // DisplayMemberPath and ValuePath properties to achieve the same effect. 

            ComboBoxItemsProvider provider = new ComboBoxItemsProvider();
            for (int i = 0; i < 6; i++)
                provider.Items.Add( new ComboBoxDataItem(i, "Item " + i.ToString()));

            this.XamComboEditor2.ValueType = typeof(int);
            this.XamComboEditor2.ItemsProvider = provider;

            // The following shows a XamDataGrid that adds an unbound field that
            // sets its EditorStyle to a XamComboEditor that uses the same shared
            // ItemsProvider that was defined in xaml. This leverages the significant 
            // speed and memory footprint advantages of using a single shared 
            // ItemsProvider for each record in the XamDataGrid. Note: this can
            // also be used for standard bound Fields as well.

            UnboundField fld = new UnboundField();
            fld.Name = "Visibility Setting";
 
            Style style = new Style(typeof(XamComboEditor));
            style.Setters.Add(new Setter(XamComboEditor.ItemsProviderProperty, new DynamicResourceExtension("ComboItemsProvider")));
            fld.Settings.EditorStyle = style;
            fld.Settings.EditorType = typeof(XamComboEditor);

            FieldLayout fieldLayout = new FieldLayout();
            fieldLayout.Fields.Add(fld);
            this.XamDataGrid1.FieldLayouts.Add(fieldLayout);
            this.XamDataGrid1.BindToSampleData = true;
        }

        private void XamComboEditor1_SelectedItemChanged(object sender, RoutedPropertyChangedEventArgs<object> e)
        {

        }
    }

Visual Basic

Imports Infragistics.Windows.Editors
Imports Infragistics.Windows.DataPresenter


Class Window1

    Public Sub New()

        ' This call is required by the Windows Form Designer.
        InitializeComponent()

        ' Add any initialization after the InitializeComponent() call.

        ' the first XamComboEditor is using the ItemsProvider defined as a shared 
        ' resource in xaml
        Me.XamComboEditor1.ItemsProvider = TryCast(Me.Resources("ComboItemsProvider"), ComboBoxItemsProvider)
        Me.XamComboEditor1.DropDownButtonDisplayMode = DropDownButtonDisplayMode.Always
        AddHandler Me.XamComboEditor1.SelectedItemChanged, AddressOf XamComboEditor1_SelectedItemChanged

        ' the second XamComboEditor is defining its own ItemsProvider and
        ' making use of the ComboBoxDataItem helper class to easily define
        ' a separate DisplayText and Value for each item. Alternatively,
        ' you can set the ItemsSource to any IEnumerable and set the 
        ' DisplayMemberPath and ValuePath properties to achieve the same effect. 

        Dim provider As ComboBoxItemsProvider = New ComboBoxItemsProvider()
        For i As Int32 = 0 To 8
            provider.Items.Add(New ComboBoxDataItem(i, "Item " + i.ToString()))
        Next
        Me.XamComboEditor2.ValueType = GetType(Integer)
        Me.XamComboEditor2.ItemsProvider = provider

        ' The following shows a XamDataGrid that adds an unbound field that
        ' sets its EditorStyle to a XamComboEditor that uses the same shared
        ' ItemsProvider that was defined in xaml. This leverages the significant 
        ' speed and memory footprint advantages of using a single shared 
        ' ItemsProvider for each record in the XamDataGrid. Note: this can
        ' also be used for standard bound Fields as well.

        Dim fld As UnboundField = New UnboundField()
        fld.Name = "Visibility Setting"

        Dim styl As Style = New Style(GetType(XamComboEditor))
        styl.Setters.Add(New Setter(XamComboEditor.ItemsProviderProperty, New DynamicResourceExtension("ComboItemsProvider")))
        fld.Settings.EditorStyle = styl
        fld.Settings.EditorType = GetType(XamComboEditor)

        Dim fl As FieldLayout = New FieldLayout()
        fl.Fields.Add(fld)
        Me.XamDataGrid1.FieldLayouts.Add(fl)
        Me.XamDataGrid1.BindToSampleData = True

    End Sub

    Private Sub XamComboEditor1_SelectedItemChanged(ByVal sender As System.Object, ByVal e As System.Windows.RoutedPropertyChangedEventArgs(Of System.Object))

    End Sub
End Class