问题描述
我想用WPF和C#来显示在的ListView
数据,我对我所看到的不同的例子和方法混淆。我在寻找类似我的程序,或pre-必需品清单,使其工作全面工作的例子。我会很高兴,如果我设法从我的收藏只显示1行数据。目前,该列表视图中显示任何内容。
I'm trying to display data in a ListView
with WPF and C#, and I'm confused by the different examples and methods I have seen. I'm looking for a fully working example similar to my program, or a list of pre-requisites to make it work. I'll be happy if I manage to display just 1 row of data from my collection. Currently, the list view displays nothing.
C#:
public partial class MainWindow : Window
{
public ObservableCollection<Row> Rows { get; set; }
public MainWindow()
{
InitializeComponent();
Rows = new ObservableCollection<Row>();
Rows.Add(new Row
{
ID = "42",
Category = "cat",
CharLimit = 32,
Text = "Bonjour"
});
}
}
public class Row
{
public string ID { get; set; }
public string Category { get; set; }
public int CharLimit { get; set; }
public string Text { get; set; }
}
XAML:
<ListView ItemsSource="{Binding Path=Rows}">
<ListView.View>
<GridView>
<GridViewColumn Width="200" Header="ID" DisplayMemberBinding="{Binding Path=ID}" />
<GridViewColumn Width="200" Header="Category" DisplayMemberBinding="{Binding Path=Category}" />
<GridViewColumn Width="200" Header="Text" DisplayMemberBinding="{Binding Path=Text}" />
</GridView>
</ListView.View>
</ListView>
在此先感谢
推荐答案
创建一个视图模型
可设置为XAML中的数据上下文
Create a viewmodel
which can be set as the data context for the XAML
public class WindowsViewModel
{
private ObservableCollection<RowViewModel> m_Rows;
public ObservableCollection<RowViewModel> Rows
{
get { return m_Rows; }
set { m_Rows = value; }
}
public WindowsViewModel()
{
Rows = new ObservableCollection<RowViewModel>();
Rows.Add(new RowViewModel
{
ID = "42",
Category = "cat",
CharLimit = 32,
Text = "Bonjour"
});
}
}
实现类 RowViewModel
在下面的方式:
public class RowViewModel:INotifyPropertyChanged
{
public RowViewModel()
{
}
private string m_ID;
public string ID
{
get
{
return m_ID;
}
set
{
m_ID = value;
NotifyPropertyChanged("ID");
}
}
public string Category
{
get;
set;
}
public int CharLimit
{
get;
set;
}
public string Text
{
get;
set;
}
public event PropertyChangedEventHandler PropertyChanged;
private void NotifyPropertyChanged(string Obj)
{
if (PropertyChanged != null)
{
this.PropertyChanged(this,new PropertyChangedEventArgs(Obj));
}
}
}
在XAML背后的code,添加code:
In the code behind of XAML, add the code:
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
this.DataContext = new WindowsViewModel();
}
}
添加更新源触发属性在ListView节点:
Add the update source trigger property in the listview node:
<ListView ItemsSource="{Binding Rows, UpdateSourceTrigger=PropertyChanged, Mode=TwoWay}">
<ListView.View>
<GridView>
<GridViewColumn Width="200" Header="ID" DisplayMemberBinding="{Binding Path=ID}" />
<GridViewColumn Width="200" Header="Category" DisplayMemberBinding="{Binding Path=Category}" />
<GridViewColumn Width="200" Header="Text" DisplayMemberBinding="{Binding Path=Text}" />
</GridView>
</ListView.View>
这篇关于简单的ListView数据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!