WPF ListBox将ItemsSource与MVVM-light绑定 [英] WPF ListBox bind ItemsSource with MVVM-light

问题描述

XAML

<Window x:Class="Html5Mapper.Mapper.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:wpt="http://schemas.xceed.com/wpf/xaml/toolkit"
    Title="HTML mapper" Height="300" Width="600" >
<Window.DataContext>
    <Binding Path="Main" Source="{StaticResource Locator}"/>
</Window.DataContext>

<ListBox Name="lbFiles" ItemsSource="{Binding Filescollection, Mode=OneWay}" Width="240" Height="220">
        <ListBox.ItemTemplate>
            <DataTemplate>
                <Grid Margin="0,2">
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition Width="*" />
                        <ColumnDefinition Width="100" />
                    </Grid.ColumnDefinitions>
                    <Image Source="HTML.png" Height="40" Width="32" />
                    <TextBlock Grid.Column="1" Text="{Binding Name}" />
                </Grid>
            </DataTemplate>
        </ListBox.ItemTemplate>
    </ListBox>

MainViewModel.cs

MainViewModel.cs

public ObservableCollection<Files> Filescollection { get; set; }    
public MainViewModel()
{
    this.Filescollection = new ObservableCollection<Files>();
    SelectFilesAction();
}

private void SelectFilesAction()
{
   this.Filescollection.Add(new Files { Name = "index.html", Path = "C:\\Files"});
   //lbFiles.ItemsSource = docs;
}

问:我还需要什么将 docs 对象放入列表框?

Q: What else do I need to get the docs object into the Listbox ?

推荐答案

我认为您将控件绑定到错误的数据连接，请检查输出窗口是否存在错误.您可能希望将主窗口的datacontext设置为MainViewModel(使用代码隐藏或类似代码).另外，为什么还要为文档创建另一个实例?这没用.

In my opinion you are binding your controls to wrong datacontect, check output window for erros. You might want to set datacontext of main window to your MainViewModel (in codebehind or similar). Also why do you create another instance for docs? It is useless.

public ObservableCollection<Files> Filescollection {get;set;}

public MainViewModel()
{
    this.Filescollection = new ObservableCollection<Files>();
    SelectFilesAction();
}

private void SelectFilesAction()
{
   Filescollection.Add(new Files { Name = "index.html", Path = "C:\\Files"});
}

这篇关于WPF ListBox将ItemsSource与MVVM-light绑定的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！