c# - ObservableCollection にバインドされている場合に DataGrid に空白行が表示される

Question

I have a simple DataGrid which I am binding to a ObservableCollection and its producing black small lines in the Grid with no Data Visible. I am using ObservableCollection as I have the collection being built in RunTime using Reflection.

I am doing something like this XAML

   <DataGrid ItemsSource="{Binding Data}" />

C#

public ObservableCollection<object> Data
{ 
        get { return _Data; }
        set { 
            this._deals = value;
            this.NotifyPropertyChanged("Deals");
            }
 }
 public Run()
 {
        this.Data = CreateData(typeof(MyRecordClass))   //'MyRecordClass' needs to be passed at runtime
  }


public ObservableCollection<Object> CreateData(Type RecordType)
{
   ObservableCollection<Object> data = new ObservableCollection<object>();  
   var record = Activator.CreateInstance(RecordType);
    // Logic to load the record with Data 
   data.Add(record);
   return data;
}

Is there a way in which I can make the DataGrid read an ObservableCollection without specifying the ColumnNames or create a ObservableCollection object in the CreateData function ?

score 1 · Accepted Answer

コレクションには public properties が必要なので、データグリッドは列をコレクションにバインドできます。Object のコレクションタイプを使用すると、バインディング用のプロパティがないため、空の行が表示されます。

ここにあなたのための例があります：

public partial class MainWindow : Window { public ObservableCollection dataSource;

    public MainWindow()
    {
        InitializeComponent();

        this.dataSource = new ObservableCollection<SomeDataSource>();

        this.dataSource.Add(new SomeDataSource { Field = "123" });
        this.dataSource.Add(new SomeDataSource { Field = "1234" });
        this.dataSource.Add(new SomeDataSource { Field = "12345" });

        this.dataGrid1.ItemsSource = this.dataSource;
    }
}

public class SomeDataSource
{
    public string Field {get;set;}
}



 <DataGrid AutoGenerateColumns="False" Height="253" HorizontalAlignment="Left" Margin="27,24,0,0" Name="dataGrid1" VerticalAlignment="Top" Width="448">
            <DataGrid.Columns>
                <DataGridTextColumn Header="First" Binding="{Binding Path=Field, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" />
            </DataGrid.Columns>
 </DataGrid>

c# - ObservableCollection にバインドされている場合に DataGrid に空白行が表示される

Open specific page of a pdf in iFrame on iPad

1 に答える 1

Open specific page of a pdf in iFrame on iPad

1 に答える 1

Related

Reference