Question

当我点击button1加载了数据网格，但为什么我的文本（text1＆amp; name1）没有显示在datagrid的单元格中？

其设计代码：

<DataGrid AutoGenerateColumns="False" Height="200" Name="dataGrid" Width="200">
                                        <DataGrid.Columns>
                                            <DataGridTextColumn Header="Name" />
                                            <DataGridCheckBoxColumn Header="visible" />
                                            <DataGridTextColumn Header="Header" />
                                        </DataGrid.Columns>
                                    </DataGrid>

其背后代码：

  public class DataGridStructure
    {
        public bool visible { get; set; }
        public string NameField { get; set; }
        public string HeaderText { get; set; }

    }
    public List<DataGridStructure> CreateDataTable()
    {

        List<DataGridStructure> dgs = new List<DataGridStructure>();
         dgs.Add(new DataGridStructure() {HeaderText="text1", NameField="name1", visible=true});
       return dgs;  

     }

我的button1后面的代码：

private void button1_Click(object sender, RoutedEventArgs e)
    {
        dataGrid.ItemsSource = CreateDataTable();
    }

告诉我是否需要更多信息，请帮助我！

Answer 1

您的XAML代码没有绑定到您要显示的属性。使用AutoGenerateColumns =＆＃34; False＆＃34;这是必须的。至少您的类需要为要在DataGrid中显示的属性实现INotifyPropertyChanged接口。您也不应该使用List绑定到ItemsSource，而是使用ObservableCollection。

你XAML看起来应该是这样的：

    <DataGrid AutoGenerateColumns="False" ItemsSource="{Binding MyItemsSource}" Height="200" Name="dataGrid" Width="200">
                                    <DataGrid.Columns>
                                        <DataGridTextColumn Header="Name" Binding="{Binding Name}" />
                                        <DataGridCheckBoxColumn Header="Visible" Binding="{Binding visible}" />
                                        <DataGridTextColumn Header="Header" Binding="{Binding Header}" />
                                    </DataGrid.Columns>
                                </DataGrid>

背后的代码：

    public class DataGridStructure : INotifyPropertyChanged
{

    public event PropertyChangedEventHandler PropertyChanged;
    protected void OnPropertyChanged(string name)
    {
        PropertyChangedEventHandler handler = PropertyChanged;

        if (handler != null)
        {
            handler(this, new PropertyChangedEventArgs(name));
        }
    }

    private bool _visible = false;
    public bool visible { 
        get{ return _visible; }
        set{ 
            _visible = value;
            set{ OnPropertyChanged("visible");
        }
    }

    private string _nameField = string.Empty;
    public bool NameField { 
        get{ return _nameField; }
        set{ 
            _nameField = value;
            set{ OnPropertyChanged("NameField");
        }
    }

    private string _headerText = string.Empty;
    public bool HeaderText { 
        get{ return _headerText; }
        set{ 
            _headerText = value;
            set{ OnPropertyChanged("HeaderText");
        }
    }        
}

public void CreateDataTable()
{
     MyItemsSource.Add(new DataGridStructure() {HeaderText="text1", NameField="name1", visible=true});       
}

private void button1_Click(object sender, RoutedEventArgs e)
{
    DataContext = this;
}

 private ObservableCollection<DataGridStructure> _dataGridStructure = new ObservableCollection<DataGridStructure>();
 public ObservableCollection<DataGridStructure> MyItemsSource{get{ return _dataGridStructure; }}

Answer 2

好吧，你必须为你手动定义的每一列启用autogeneratecolumns或设置Bindings。

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