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Wpf 数据绑定到Listview

wpf data-binding listview

Wpf 数据绑定到Listview,wpf,data-binding,listview,Wpf,Data Binding,Listview,我有一个listview，它已绑定（双向）到一个datatable。绑定工作正常，数据在listview上正常显示。现在我想要实现的有点复杂，我甚至不确定这是否可以实现，或者现在 我的datatable有15列，我在lisview中显示了5列。如果用户在listview上选择一行，我可能会在stackpanel的textblocks中显示所选行（来自datatable）的其他10个值。这是可以实现的还是我要求太高了？我试图通过从问题中获取想法来实现这一点，但未能实现。 如果这是可以实现的，你们能

我有一个listview，它已绑定（双向）到一个datatable。绑定工作正常，数据在listview上正常显示。现在我想要实现的有点复杂，我甚至不确定这是否可以实现，或者现在

我的datatable有15列，我在lisview中显示了5列。如果用户在listview上选择一行，我可能会在stackpanel的textblocks中显示所选行（来自datatable）的其他10个值。这是可以实现的还是我要求太高了？我试图通过从问题中获取想法来实现这一点，但未能实现。 如果这是可以实现的，你们能给我一些关于如何进行的想法吗

我认为这可以通过处理listview1_selectionChanged事件并手动填充文本框来实现，但由于我正处于学习阶段，我想探索是否可以通过数据绑定来实现。通过这种方式，我将了解各种做事方式，并在此过程中建立我的概念

我在下面附上我的代码。这只是一个测试项目，一个listview有一个列

XAML:

<Window.Resources>
    <Prefs:Tables x:Key="TClass"></Prefs:Tables>
</Window.Resources>
<Grid>
    <StackPanel Orientation="Horizontal">
        <ListView Name="listView1" Background="Transparent" Height="534" BorderThickness="0 0 0 1" VerticalAlignment="Top">
            <ListView.ItemsSource>
                <Binding Source="{StaticResource TClass}" Path="Instance.dtAccounts" Mode="TwoWay"></Binding>
            </ListView.ItemsSource>
            <ListView.View>
                <GridView x:Name="GridView1" ColumnHeaderContainerStyle="{StaticResource GridViewHeader}" AllowsColumnReorder="True">
                    <GridViewColumn Header="Company Name">
                        <GridViewColumn.CellTemplate>
                            <DataTemplate>
                                <TextBlock x:Name="txbName" Padding="0 0 5 0" >
                                    <TextBlock.Text>
                                    <Binding Path="NAME">

                                    </Binding>
                                        </TextBlock.Text>
                                </TextBlock>
                            </DataTemplate>
                        </GridViewColumn.CellTemplate>
                    </GridViewColumn>
                </GridView>
            </ListView.View>
        </ListView>
        <StackPanel Name="stkPanel1" Margin="100 0 0 0">
            <TextBlock></TextBlock>
        </StackPanel>
    </StackPanel>
</Grid>

<Grid>
    <StackPanel Orientation="Horizontal">
        <ListView Name="listView1" Background="Transparent" Height="534" BorderThickness="0 0 0 1" VerticalAlignment="Top" SelectionChanged="listView1_SelectionChanged">
            <ListView.ItemsSource>
                <Binding Source="{StaticResource TClass}" Path="Instance.dtAccounts" Mode="TwoWay"></Binding>
            </ListView.ItemsSource>
            <ListView.View>
                <GridView x:Name="GridView1" ColumnHeaderContainerStyle="{StaticResource GridViewHeader}" AllowsColumnReorder="True">
                    <GridViewColumn Header="Company Name">
                        <GridViewColumn.CellTemplate>
                            <DataTemplate>
                                <TextBlock Name="txbName" Padding="0 0 5 0" >
                                    <TextBlock.Text>
                                    <Binding Path="NAME">

                                    </Binding>
                                        </TextBlock.Text>
                                </TextBlock>
                            </DataTemplate>
                        </GridViewColumn.CellTemplate>
                    </GridViewColumn>
                </GridView>
            </ListView.View>
        </ListView>
        <StackPanel Name="stkPanel1" Margin="100 0 0 0">
            <TextBlock>
                <TextBlock.Text>
                    <Binding Source="{StaticResource TClass}" Path="Instance.SelectedName" Mode="TwoWay">

                    </Binding>
                </TextBlock.Text>
            </TextBlock>
        </StackPanel>
    </StackPanel>
</Grid>
类表格.cs

public partial class Window1 : Window
{
    DataTable dt = new DataTable();
    public Window1()
    {
        InitializeComponent();
        Tables.Instance.dtAccounts = Worker.LoadAccounts();
    }

}

public class Tables : INotifyPropertyChanged
{
    private static Tables instance;
    public event PropertyChangedEventHandler PropertyChanged = delegate { };
    private DataTable _dtAccounts;

    public Tables()
    {
    }

    // Singleton instance read-only property
    public static Tables Instance
    {
        get
        {
            if (instance == null)
            {
                instance = new Tables();
            }
            return instance;
        }
    }

    public DataTable dtAccounts
    {
        get
        {
            return _dtAccounts;
        }
        set
        {
            _dtAccounts = value;
            OnPropertyChanged("dtAccounts");
        }
    }

    private void OnPropertyChanged(string property)
    {
        if (PropertyChanged != null)
        {
            PropertyChanged(this, new PropertyChangedEventArgs(property));
        }
    } 
}

public partial class Window1 : Window
{
    DataTable dt = new DataTable();
    public Window1()
    {
        InitializeComponent();
        Tables.Instance.dtAccounts = Worker.LoadAccounts();
    }

    private void listView1_SelectionChanged(object sender, SelectionChangedEventArgs e)
    {
        ListView lstView = sender as ListView;
        int item = lstView.SelectedIndex;
        Tables.Instance.SetSelectedRow(item);
    }
}

public class Tables : INotifyPropertyChanged
{
    private static Tables instance;
    public event PropertyChangedEventHandler PropertyChanged = delegate { };
    private DataTable _dtAccounts;
    private string _selectedName;

    public Tables()
    {
    }

    // Singleton instance read-only property
    public static Tables Instance
    {
        get
        {
            if (instance == null)
            {
                instance = new Tables();
            }
            return instance;
        }
    }

    public DataTable dtAccounts
    {
        get
        {
            return _dtAccounts;
        }
        set
        {
            _dtAccounts = value;
            OnPropertyChanged("dtAccounts");
        }
    }

    public string SelectedName
    {
        get
        {
            return _selectedName;
        }
        set
        {
            _selectedName = value;
            OnPropertyChanged("SelectedName");
        }

    }

    public void SetSelectedRow(int index)
    {
        int indexNo = index;
        SelectedName = dtAccounts.Rows[index][0].ToString();
    }

    private void OnPropertyChanged(string property)
    {
        if (PropertyChanged != null)
        {
            PropertyChanged(this, new PropertyChangedEventArgs(property));
        }
    } 
}
=====================

最终工作代码

在菲尔提供的答案的帮助下，我做到了这一点。在下面发布我的更新代码，因为它可能对其他人有用

XAML:

<Window.Resources>
    <Prefs:Tables x:Key="TClass"></Prefs:Tables>
</Window.Resources>
<Grid>
    <StackPanel Orientation="Horizontal">
        <ListView Name="listView1" Background="Transparent" Height="534" BorderThickness="0 0 0 1" VerticalAlignment="Top">
            <ListView.ItemsSource>
                <Binding Source="{StaticResource TClass}" Path="Instance.dtAccounts" Mode="TwoWay"></Binding>
            </ListView.ItemsSource>
            <ListView.View>
                <GridView x:Name="GridView1" ColumnHeaderContainerStyle="{StaticResource GridViewHeader}" AllowsColumnReorder="True">
                    <GridViewColumn Header="Company Name">
                        <GridViewColumn.CellTemplate>
                            <DataTemplate>
                                <TextBlock x:Name="txbName" Padding="0 0 5 0" >
                                    <TextBlock.Text>
                                    <Binding Path="NAME">

                                    </Binding>
                                        </TextBlock.Text>
                                </TextBlock>
                            </DataTemplate>
                        </GridViewColumn.CellTemplate>
                    </GridViewColumn>
                </GridView>
            </ListView.View>
        </ListView>
        <StackPanel Name="stkPanel1" Margin="100 0 0 0">
            <TextBlock></TextBlock>
        </StackPanel>
    </StackPanel>
</Grid>

<Grid>
    <StackPanel Orientation="Horizontal">
        <ListView Name="listView1" Background="Transparent" Height="534" BorderThickness="0 0 0 1" VerticalAlignment="Top" SelectionChanged="listView1_SelectionChanged">
            <ListView.ItemsSource>
                <Binding Source="{StaticResource TClass}" Path="Instance.dtAccounts" Mode="TwoWay"></Binding>
            </ListView.ItemsSource>
            <ListView.View>
                <GridView x:Name="GridView1" ColumnHeaderContainerStyle="{StaticResource GridViewHeader}" AllowsColumnReorder="True">
                    <GridViewColumn Header="Company Name">
                        <GridViewColumn.CellTemplate>
                            <DataTemplate>
                                <TextBlock Name="txbName" Padding="0 0 5 0" >
                                    <TextBlock.Text>
                                    <Binding Path="NAME">

                                    </Binding>
                                        </TextBlock.Text>
                                </TextBlock>
                            </DataTemplate>
                        </GridViewColumn.CellTemplate>
                    </GridViewColumn>
                </GridView>
            </ListView.View>
        </ListView>
        <StackPanel Name="stkPanel1" Margin="100 0 0 0">
            <TextBlock>
                <TextBlock.Text>
                    <Binding Source="{StaticResource TClass}" Path="Instance.SelectedName" Mode="TwoWay">

                    </Binding>
                </TextBlock.Text>
            </TextBlock>
        </StackPanel>
    </StackPanel>
</Grid>
表格.cs

public partial class Window1 : Window
{
    DataTable dt = new DataTable();
    public Window1()
    {
        InitializeComponent();
        Tables.Instance.dtAccounts = Worker.LoadAccounts();
    }

}

public class Tables : INotifyPropertyChanged
{
    private static Tables instance;
    public event PropertyChangedEventHandler PropertyChanged = delegate { };
    private DataTable _dtAccounts;

    public Tables()
    {
    }

    // Singleton instance read-only property
    public static Tables Instance
    {
        get
        {
            if (instance == null)
            {
                instance = new Tables();
            }
            return instance;
        }
    }

    public DataTable dtAccounts
    {
        get
        {
            return _dtAccounts;
        }
        set
        {
            _dtAccounts = value;
            OnPropertyChanged("dtAccounts");
        }
    }

    private void OnPropertyChanged(string property)
    {
        if (PropertyChanged != null)
        {
            PropertyChanged(this, new PropertyChangedEventArgs(property));
        }
    } 
}

public partial class Window1 : Window
{
    DataTable dt = new DataTable();
    public Window1()
    {
        InitializeComponent();
        Tables.Instance.dtAccounts = Worker.LoadAccounts();
    }

    private void listView1_SelectionChanged(object sender, SelectionChangedEventArgs e)
    {
        ListView lstView = sender as ListView;
        int item = lstView.SelectedIndex;
        Tables.Instance.SetSelectedRow(item);
    }
}

public class Tables : INotifyPropertyChanged
{
    private static Tables instance;
    public event PropertyChangedEventHandler PropertyChanged = delegate { };
    private DataTable _dtAccounts;
    private string _selectedName;

    public Tables()
    {
    }

    // Singleton instance read-only property
    public static Tables Instance
    {
        get
        {
            if (instance == null)
            {
                instance = new Tables();
            }
            return instance;
        }
    }

    public DataTable dtAccounts
    {
        get
        {
            return _dtAccounts;
        }
        set
        {
            _dtAccounts = value;
            OnPropertyChanged("dtAccounts");
        }
    }

    public string SelectedName
    {
        get
        {
            return _selectedName;
        }
        set
        {
            _selectedName = value;
            OnPropertyChanged("SelectedName");
        }

    }

    public void SetSelectedRow(int index)
    {
        int indexNo = index;
        SelectedName = dtAccounts.Rows[index][0].ToString();
    }

    private void OnPropertyChanged(string property)
    {
        if (PropertyChanged != null)
        {
            PropertyChanged(this, new PropertyChangedEventArgs(property));
        }
    } 
}
以下是实现此目标的基本方法描述。这不是一个理想的解决方案，但应该会让您走上正确的轨道

  • 在Tables类中创建一个字段变量，该变量表示datatable中的一行
  • 在Tables类中创建一个方法，将该字段变量设置为表中的正确行
  • 创建公开行的值的属性
  • 步骤#2的方法需要对步骤#3（OnPropertyChanged）中公开的所有属性执行更改通知
  • 在代码隐藏中处理selection_changed事件，并从该事件处理程序调用Tables类中设置所选行的方法
  • 将文本块绑定到 步骤#3中公开的属性
    • 这里是这样的：

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

        ObservableCollection<Person> personList = new ObservableCollection<Person>();

        personList.Add(new Person() { FirstName = "John", LastName = "Doe", Age = 30, Address = "123 Doe Street", Phone = "111-111-1111" });
        personList.Add(new Person() { FirstName = "Jane", LastName = "Doe", Age = 28, Address = "123 Doe Street", Phone = "222-222-2222" });
        personList.Add(new Person() { FirstName = "Mark", LastName = "Doe", Age = 15, Address = "123 Doe Street", Phone = "333-333-3333" });
        personList.Add(new Person() { FirstName = "John", LastName = "Smith", Age = 40, Address = "123 Doe Street", Phone = "444-444-4444" });
        personList.Add(new Person() { FirstName = "Rosy", LastName = "Smith", Age = 36, Address = "123 Doe Street", Phone = "555-555-5555" });

        PersonListView.ItemsSource = personList;
    }

    private void PersonListView_SelectionChanged(object sender, SelectionChangedEventArgs e)
    {
        if (PersonListView.SelectedIndex >= 0)
        {
            Object data = PersonListView.SelectedItem;
            PropertyInfo[] properties = data.GetType().GetProperties(BindingFlags.Public | BindingFlags.Instance);

            ExtraPropertiesPanel.Children.Clear();

            foreach (PropertyInfo prop in properties)
            {
                TextBox tb = new TextBox();
                Binding b = new Binding() { Source = data, Path = new PropertyPath(prop.Name) };
                tb.SetBinding(TextBox.TextProperty, b);
                ExtraPropertiesPanel.Children.Add(tb);
            }
        }
    }
}

public class Person
{
    public String FirstName { get; set; }
    public String LastName { get; set; }
    public Int32 Age { get; set; }
    public String Address { get; set; }
    public String Phone { get; set; }
}

    public分部类DynamicListViewWindow:Window
{
公共DynamicClistViewWindow（）
{
初始化组件（）；
ObservableCollection personList=新的ObservableCollection（）；
添加（newperson（）{FirstName=“John”，LastName=“Doe”，Age=30，Address=“123 Doe Street”，Phone=“111-111-1111”}）；
添加（newperson（）{FirstName=“Jane”，LastName=“Doe”，Age=28，Address=“123 Doe Street”，Phone=“222-222-2222”}）；
添加（newperson（）{FirstName=“Mark”，LastName=“Doe”，Age=15，Address=“123 Doe Street”，Phone=“333-333-3333”}）；
添加（newperson（）{FirstName=“John”，LastName=“Smith”，年龄=40，地址=“123 Doe Street”，电话=“444-444-4444”}）；
添加（newperson（）{FirstName=“Rosy”，LastName=“Smith”，Age=36，Address=“123 Doe Street”，Phone=“555-555-5555”}）；
PersonListView.ItemsSource=personList；
}
private void PersonListView\u SelectionChanged（对象发送者，SelectionChangedEventArgs e）
{
如果（PersonListView.SelectedIndex>=0）
{
对象数据=PersonListView.SelectedItem；
PropertyInfo[]properties=data.GetType（）.GetProperties（BindingFlags.Public | BindingFlags.Instance）；
ExtraPropertiesPanel.Children.Clear（）；
foreach（PropertyInfo属性中的属性）
{
TextBox tb=新的TextBox（）；
Binding b=newbinding（）{Source=data，Path=newpropertypath（prop.Name）}；
tb.SetBinding（TextBox.TextProperty，b）；
资产外资产负债表。儿童。新增（tb）；
}
}
}
}
公共阶层人士
{
公共字符串名{get；set；}
公共字符串LastName{get；set；}
公共Int32年龄{get；set；}
公共字符串地址{get；set；}
公用字符串电话{get；set；}
}
    XAML

    谢谢，菲尔，它工作得非常好。我会将更新后的代码粘贴到我原来的帖子中。这可能对其他人有帮助。