在TabControl

Question

首先，我是WPF和MVVM的新手，所以你可以期待一些疯狂的混音，只是建议改变，我在这里学习。
这个问题是this one的延续。

我有一个TabControl TabItem在XAML中定义，每个UserControl都有自己的<Window x:Class="WPF.GUI.Views.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:viewModels="clr-namespace:WPF.GUI.ViewModels" xmlns:views="clr-namespace:WPF.GUI.Views" xmlns:mainWindow="clr-namespace:WPF.GUI.ViewModels.MainWindow" xmlns:model="clr-namespace:WPF.Processing.Model" xmlns:helpers="clr-namespace:WPF.GUI.Helpers" mc:Ignorable="d"> <!--#region Resources--> <Window.Resources> <DataTemplate DataType="{x:Type viewModels:ResultViewModel}"> <views:ResultView /> </DataTemplate> <DataTemplate DataType="{x:Type viewModels:ConfigurationViewModel}"> <views:ConfigurationView /> </DataTemplate> <DataTemplate DataType="{x:Type viewModels:DetailedViewModel}"> <views:DetailedView /> </DataTemplate> </Window.Resources> <!--#endregion Resources--> <!--#region DataContext--> <Window.DataContext> <mainWindow:MainWindowViewModel /> </Window.DataContext> <!--#endregion DataContext--> <!--#region Main Grid--> <Grid> <Grid.ColumnDefinitions> <ColumnDefinition/> </Grid.ColumnDefinitions> <Grid.RowDefinitions> <RowDefinition/> <RowDefinition/> <RowDefinition/> <RowDefinition/> </Grid.RowDefinitions> <!--#region Tabs--> <TabControl> <TabControl.Resources> <CollectionViewSource Source="{Binding Model.TabItemsVM}" x:Key="Tabs"/> <DataTemplate DataType="{x:Type helpers:VMWrap}"> <ContentPresenter Content="{Binding VModel}"/> </DataTemplate> </TabControl.Resources> <TabControl.ItemsSource> <CompositeCollection> <!--Result Tab--> <TabItem Header="Result"> <ContentPresenter Content="{Binding ResultViewModel}"/> </TabItem> <!--Configuration Tab--> <TabItem Header="Configuration"> <ContentPresenter Content="{Binding ConfigViewModel}"/> </TabItem> <!--Others--> <CollectionContainer Collection="{Binding Source={StaticResource Tabs}}"/> </CompositeCollection> </TabControl.ItemsSource> </TabControl> <!--#endregion--> </Grid> <!--#endregion Main Grid--> </Window> 。 XAML

UserControl

如果我使用上面链接的答案的示例工作正常，我可以单独创建选项卡，结果选项卡和配置选项卡保持不变。

但是，如果我使用TabItem我创建的新UserControl我的TabItem.Header将ObservableCollection<TabItem>放入TabControl.DataTemplate

如果我不遵循MVVM并且我按预期创建了 select * from dbo.BAS_GDW_TMO_PARCEL_EBILL_ALL_ARCHIVE_AUDIT_RESULT_TBL where TMO_TRACK_NBR in ( 964855234 --int , 141329655 --int , 138150364 --int , '3F3857' --varchar ) ，那么我认为问题出在select * from dbo.BAS_GDW_TMO_PARCEL_EBILL_ALL_ARCHIVE_AUDIT_RESULT_TBL where TMO_TRACK_NBR in ( '964855234' --varchar , '141329655' --varchar , '138150364' --varchar , '3F3857' --varchar )

上

任何想法或建议都将受到高度赞赏。

编辑：由于我无法提供工作示例，因为应用程序的复杂性和涉及的代码，我添加以下图片来解释问题：

预期的观点

Answer 1

使用ContentTemplateSelector

中的TabControl修复了问题

<Window.Resources>
        <DataTemplate x:Key="DetailedTemplate" DataType="{x:Type viewModels:DetailedViewModel}">
            <views:DetailedView/>
        </DataTemplate>
        <DataTemplate x:Key="ConfigurationTemplate" DataType="{x:Type viewModels:ConfigurationViewModel}">
            <views:ConfigurationView />
        </DataTemplate>
        <DataTemplate x:Key="ResultTemplate" DataType="{x:Type viewModels:ResultViewModel}">
            <views:ResultView/>
        </DataTemplate>

        <helpers:MyViewSelector x:Key="Selector" 
                                DetailedTemplate="{StaticResource DetailedTemplate}" 
                                ConfigurationTemplate="{StaticResource ConfigurationTemplate}"
                                ResultTemplate="{StaticResource ResultTemplate}"/>

</Window.Resources>

Tab Control：

<TabControl Grid.Row="1"
                    Grid.Column="0"
                    VerticalAlignment="Stretch"
                    BorderThickness="0.5"
                    BorderBrush="Black"
                    ContentTemplateSelector="{StaticResource Selector}">
            <TabControl.Resources>
                <CollectionViewSource Source="{Binding Model.DetailsVM}" x:Key="Tabs"/>
                <DataTemplate DataType="{x:Type viewModels:DetailedViewModel}">
                    <TextBlock Text="{Binding Model.SelectedItem.FileInfo.Name, Mode=OneWay}"/>
                </DataTemplate>
            </TabControl.Resources>
            <TabControl.ItemsSource>
                <CompositeCollection>
                    <!--Result View-->
                    <TabItem Header="Import" Content="{Binding ResultViewModel}"/>
                    <!--Configuration Tab-->
                    <TabItem Header="Configuration" Content="{Binding ConfigViewModel}"/>    
                    <!--Others-->
                    <CollectionContainer Collection="{Binding Source={StaticResource Tabs}}"/>
                </CompositeCollection>
            </TabControl.ItemsSource>

</TabControl>

辅助

    public class MyViewSelector : DataTemplateSelector
    {
        public override DataTemplate SelectTemplate(object inItem, DependencyObject container)
        {
            if (inItem == null)
            {
                return ResultTemplate;
            }

            if (inItem is DetailedViewModel)
            {
                return DetailedTemplate;
            }
            if (inItem is ResultViewModel)
            {
                return ResultTemplate;
            }
            if (inItem is ConfigurationViewModel)
            {
                return ConfigurationTemplate;
            }

            return ResultTemplate;
        }

        public DataTemplate DetailedTemplate { get; set; }
        public DataTemplate ConfigurationTemplate { get; set; }
        public DataTemplate ResultTemplate { get; set; }

    }

来源：

https://stackoverflow.com/a/18312765/2315752

https://jacobaloysious.wordpress.com/2013/08/19/mvvm-using-contenttemplateselector-in-tab-control-view/

https://msdn.microsoft.com/en-us/library/system.windows.controls.contentcontrol.contenttemplateselector.aspx