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我有一個WPF XAML頁面，有3個部分由DockPanels分隔。一個面板包含與集合綁定的INFRAGITICS XamDataGrid控件。如何使用純MVVM概念和依賴注入將WPF頁面上不同集合的不同面板上可用的XamDataGrid綁定。
- 我想以純MVVM方式使用DataContext/DataSource屬性綁定XamDataGrid控件。
- 此外，倒很理解，如果結合是通過依賴注入來完成。
我曾嘗試不同的方法，但沒有獲得成功。我粘貼了以下代碼以供參考。請幫助。
XAML頁面：
<Window x:Class="UserInterface.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:local="clr-namespace:UserInterface"
xmlns:igDP="clr-namespace:Infragistics.Windows.DataPresenter;assembly=InfragisticsWPF.DataPresenter"
xmlns:igEditors="clr-namespace:Infragistics.Windows.Editors;assembly=InfragisticsWPF.Editors"
xmlns:sys="clr-namespace:System;assembly=mscorlib"
xmlns:dc ="clr-namespace:UserInterface.ViewModel"
xmlns:diag="clr-namespace:System.Diagnostics;assembly=WindowsBase"
mc:Ignorable="d"
Title="MainWindow">
<Window.Resources>
<dc:GraphicViewModel x:Key="dataContext"/>
</Window.Resources>
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height=".5*"/>
<RowDefinition Height=".5*"/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width=".5*"/>
<ColumnDefinition Width=".5*"/>
</Grid.ColumnDefinitions>
<DockPanel Grid.Column="0" Grid.Row="0">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="Auto"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
</Grid.RowDefinitions>
</Grid>
<!--<StackPanel Orientation="Vertical" DockPanel.Dock="Top">
<StackPanel Orientation="Horizontal" Margin="5" Grid.Row="0">
<DockPanel>
<TextBlock Text="*.cfg File" Grid.Column="0" DockPanel.Dock="Left"/>
<Button Content="Browse..." Grid.Column="2" DockPanel.Dock="Right"/>
<TextBox FontStyle="Italic" FontWeight="Light" Text="Browse *.cfg file..." Grid.Column="1" DockPanel.Dock="Right"/>
</DockPanel>
</StackPanel>
<StackPanel Orientation="Horizontal" Margin="5" Grid.Row="1">
<TextBlock Text="*.ps File " Grid.Column="0"/>
<TextBox FontStyle="Italic" FontWeight="Light" Text="Browse *.ps file..." Grid.Column="1"/>
<Button Content="Browse..." Grid.Column="2"/>
</StackPanel>
<StackPanel Orientation="Horizontal" Margin="5" Grid.Row="2">
<TextBlock Text="*.pic File " Grid.Column="0"/>
<TextBox FontStyle="Italic" FontWeight="Light" Text="Browse *.pic file..." Grid.Column="1"/>
<Button Content="Browse..." Grid.Column="2"/>
</StackPanel>
<StackPanel Orientation="Horizontal" Margin="5" Grid.Row="3">
<TextBlock Text="*.xlsx File" Grid.Column="0"/>
<TextBox FontStyle="Italic" FontWeight="Light" Text="Browse *.xlsx file..." Grid.Column="1"/>
<Button Content="Browse..." Grid.Column="2"/>
</StackPanel>
<StackPanel Orientation="Horizontal" Margin="5" Grid.Row="4">
<TextBlock Text="*.xlsx File"/>
<TextBox FontStyle="Italic" FontWeight="Light" Text="Browse *.xlsx file..." Grid.Column="1"/>
<Button Content="Browse..." Grid.Column="2"/>
</StackPanel>
</StackPanel>-->
<StackPanel Orientation="Horizontal">
<StackPanel Orientation="Vertical" Margin="5" Grid.Row="0">
<TextBlock MinHeight="20.5" Text="*.cfg File" Grid.Column="0"/>
<TextBlock MinHeight="20.5" Text="*.ps File " Grid.Column="0"/>
<TextBlock MinHeight="20.5" Text="*.pic File " Grid.Column="0"/>
<TextBlock MinHeight="20.5" Text="*.xlsx File" Grid.Column="0"/>
<TextBlock MinHeight="20.5" Text="*.xlsx File" Grid.Column="0"/>
</StackPanel>
<StackPanel Orientation="Vertical" Margin="5" Grid.Row="1">
<TextBox FontStyle="Italic" FontWeight="Light" Text="Browse *.cfg file..." Grid.Column="1" MinHeight="20.5"/>
<TextBox FontStyle="Italic" FontWeight="Light" Text="Browse *.ps file..." Grid.Column="1" MinHeight="20.5"/>
<TextBox FontStyle="Italic" FontWeight="Light" Text="Browse *.pic file..." Grid.Column="1" MinHeight="20.5"/>
<TextBox FontStyle="Italic" FontWeight="Light" Text="Browse Model mapping file..." Grid.Column="1" MinHeight="20.5"/>
<TextBox FontStyle="Italic" FontWeight="Light" Text="Browse Parameter mapping file..." Grid.Column="1" MinHeight="20.5"/>
</StackPanel>
<StackPanel Orientation="Vertical" Margin="5" Grid.Row="2">
<Button Content="Browse..." Grid.Column="2"/>
<Button Content="Browse..." Grid.Column="2"/>
<Button Content="Browse..." Grid.Column="2"/>
<Button Content="Browse..." Grid.Column="2"/>
<Button Content="Browse..." Grid.Column="2"/>
</StackPanel>
</StackPanel>
</DockPanel>
<DockPanel Grid.Column="1" Grid.Row="0">
<igDP:XamDataGrid x:Name="ItemsSource" DataContext="{Binding Source={StaticResource dataContext}, Path=ItemsSource, Mode=TwoWay}" Grid.Row="0" Margin="10" AutoFit="true">
<igDP:XamDataGrid.ViewSettings>
<igDP:GridViewSettings/>
</igDP:XamDataGrid.ViewSettings>
<igDP:XamDataGrid.FieldSettings>
<igDP:FieldSettings LabelTextAlignment="Left" AllowRecordFiltering="true" FilterOperandUIType="ExcelStyle" FilterStringComparisonType="CaseInsensitive" FilterOperatorDefaultValue="Contains"
LabelClickAction="SortByOneFieldOnlyTriState" SortComparisonType="Default"/>
</igDP:XamDataGrid.FieldSettings>
<igDP:XamDataGrid.FieldLayoutSettings>
<igDP:FieldLayoutSettings DataErrorDisplayMode="ErrorIconAndHighlight" SupportDataErrorInfo="RecordsAndCells" SelectionTypeRecord ="Single"
AutoGenerateFields="False" FilterUIType="FilterRecord"/>
</igDP:XamDataGrid.FieldLayoutSettings>
<igDP:XamDataGrid.FieldLayouts>
<igDP:FieldLayout>
<igDP:FieldLayout.Fields>
<igDP:Field Name="IsSelected" Label="Select" HorizontalContentAlignment="Left" Width="Auto" VerticalContentAlignment="Center">
<igDP:Field.Settings>
<igDP:FieldSettings DataItemUpdateTrigger="OnCellValueChange">
<igDP:FieldSettings.LabelPresenterStyle>
<Style TargetType="{x:Type igDP:LabelPresenter}">
<Setter Property="ContentTemplate">
<Setter.Value>
<DataTemplate>
<CheckBox Checked="CheckBox_Checked" Unchecked="CheckBox_Unchecked" Content="" />
</DataTemplate>
</Setter.Value>
</Setter>
</Style>
</igDP:FieldSettings.LabelPresenterStyle>
</igDP:FieldSettings>
</igDP:Field.Settings>
</igDP:Field>
<igDP:Field Label="Name" Name="Name" AllowEdit="False" HorizontalContentAlignment="Left" Width="Auto">
</igDP:Field>
<igDP:Field Label="Type" Name="Type" AllowEdit="False" HorizontalContentAlignment="Left" Width="*"/>
<igDP:Field Label="Background" Name="Background" AllowEdit="False" HorizontalContentAlignment="Left" Width="Auto"/>
<igDP:Field Label="Width" Name="Width" AllowEdit="False" HorizontalContentAlignment="Right" Width="Auto"/>
<igDP:Field Label="Height" Name="Height" AllowEdit="False" HorizontalContentAlignment="Right" Width="Auto"/>
</igDP:FieldLayout.Fields>
</igDP:FieldLayout>
</igDP:XamDataGrid.FieldLayouts>
</igDP:XamDataGrid>
</DockPanel>
<DockPanel Grid.Column="0" Grid.Row="1" Grid.RowSpan="2">
<StackPanel Orientation="Vertical" DockPanel.Dock="Bottom">
<TextBox Text="Sample Text1"/>
<TextBox Text="Sample Text2"/>
<TextBox Text="Sample Text3"/>
<TextBox Text="Sample Text4"/>
</StackPanel>
</DockPanel>
<!--</StackPanel>-->
</Grid>
</Window>
的XAML代碼隱藏頁：
namespace UserInterface
{
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
//GraphicViewModel obj = new GraphicViewModel();
//ItemsSource.DataSource = obj.ItemsSource;
}
#region INotifyPropertyChanged Members
public event PropertyChangedEventHandler PropertyChanged;
private void NotifyPropertyChanged(string info)
{
if (PropertyChanged != null)
{
PropertyChanged(this, new PropertyChangedEventArgs(info));
}
}
#endregion INotifyPropertyChanged Members
public GraphicViewModel GraphicViewModel
{
get { return this.DataContext as GraphicViewModel; }
set
{
this.DataContext = value;
if (this.DataContext != null)
NotifyPropertyChanged("GraphicViewModel");
}
}
private void CheckBox_Checked(object sender, RoutedEventArgs e)
{
}
private void CheckBox_Unchecked(object sender, RoutedEventArgs e)
{
}
}
}
模型類：
namespace UserInterface.Model
{
public class GraphicsModel : INotifyPropertyChanged
{
public event PropertyChangedEventHandler PropertyChanged;
protected virtual void NotifyOfPropertyChange(string property)
{
if (PropertyChanged != null)
PropertyChanged(this, new PropertyChangedEventArgs(property));
}
private bool _isSelected;
public bool IsSelected
{
get { return _isSelected; }
set
{
if (_isSelected == value) return;
_isSelected = value;
NotifyOfPropertyChange("IsSelected");
}
}
private string _name = string.Empty;
public string Name
{
get { return _name; }
set
{
if (_name != value)
_name = value;
NotifyOfPropertyChange("Name");
}
}
private string _type = string.Empty;
public string Type
{
get { return _type; }
set
{
if (_type != value)
_type = value;
NotifyOfPropertyChange("Type");
}
}
private string _width = string.Empty;
public string Width
{
get { return _width; }
set
{
if (_width != value)
_width = value;
NotifyOfPropertyChange("Width");
}
}
private string _height = string.Empty;
public string Height
{
get { return _height; }
set
{
if (_height != value)
_height = value;
NotifyOfPropertyChange("Height");
}
}
}
}
ViewModel類：
namespace UserInterface.ViewModel
{
public class GraphicViewModel : INotifyPropertyChanged
{
public event PropertyChangedEventHandler PropertyChanged;
protected virtual void NotifyOfPropertyChange(string property)
{
if (PropertyChanged != null)
PropertyChanged(this, new PropertyChangedEventArgs(property));
}
private ObservableCollection<GraphicsModel> _itemsSource = new ObservableCollection<GraphicsModel>();
// MainWindow _view = null;
public ObservableCollection<GraphicsModel> ItemsSource
{
get { return _itemsSource; }
set
{
if (_itemsSource == value) return;
_itemsSource = value;
NotifyOfPropertyChange("ItemsSource");
}
}
public GraphicViewModel()
{
//_view = view;
_itemsSource = new ObservableCollection<GraphicsModel>() { new GraphicsModel() { Name = "sdasdad", Type = "Model", IsSelected = false, Height = "1000", Width = "1370" } ,
new GraphicsModel() { Name = "sdsa", Type = "Model", IsSelected = false, Height = "1000", Width = "1370" } ,new GraphicsModel() { Name = "sdasdad", Type = "Model", IsSelected = false, Height = "1000", Width = "1370" } ,new GraphicsModel() { Name = "asas", Type = "Model", IsSelected = false, Height = "1000", Width = "1370" } ,new GraphicsModel() { Name = "rewwe", Type = "Model", IsSelected = false, Height = "1000", Width = "1370" } ,};
//view.GraphicViewModel = this;
}
}
}
觀察：在你的'MainWindow'你不設置'GraphicViewModel'財產會設置DataContext。相反，你保持視圖模型在資源部分，並通過StaticResource綁定到它..這是完全奇怪的。決定用哪種方式來使用它：要麼通過代碼將其設置爲'window.DataContext'，要麼通過XAML將其設置爲DataContext（都可以，大多都是相同的），或者，如果你想保留在資源中，然後適當地編寫代碼，並且根本不引用DataContext（它將保持爲NULL） – quetzalcoatl
並且關於（2）否，它不是。正常的'{Binding}'標記在XAML中與DI完全無關。 '{Binding}'只監視Source（或DataContext，如果沒有指定Source），並觀察該Source（DataContext）上的Path（property.property.property.xxx）。這很簡單。根本不與DI容器交互。 – quetzalcoatl
謝謝。我想直接在XAML中將DataContext設置爲Xamdatagrid。我可以請求你粘貼工作/修改的代碼，因爲我也嘗試過，但沒有成功。我做錯了什麼。 – user3249586