将 Datagrid 绑定到 observablecollection 不会仅显示数据行答案

【问题标题】：Binding Datagrid to observablecollection wont display data only rows将 Datagrid 绑定到 observablecollection 不会仅显示数据行
【发布时间】：2012-11-10 18:41:35
【问题描述】：

我在执行以下操作时遇到了一些麻烦：

我正在创建一个像这样的 ObservableCollection：

ObservableCollection<OverViewItems> ocOrderData = new ObservableCollection<OverViewItems>();

OrderViewItems 类如下所示：

    public class OverViewItems
    {
        public string OrderNo;
        public int Pieces;
        public string SenderName;
        public string ReceiverName;
        public string ReceiverAddress;
        public string ReceiverZip;
        public string ReceiverCity;
        public DateTime DelDate;
    }

然后我用一些示例数据（在本例中为两行）填充它，如下所示：

            ocOrderData.Add(new OverViewItems
            {
                OrderNo = "TEST",
                Pieces = 1,
                SenderName = "TEST SENDER",
                ReceiverName = "TEST RECEIVER",
                ReceiverAddress = "TEST ADDRESS",
                ReceiverZip = "TEST ZIP",
                ReceiverCity = "TEST CITY",
                DelDate = DateTime.Now,
            });

            ocOrderData.Add(new OverViewItems
            {
                OrderNo = "TEST 2",
                Pieces = 1,
                SenderName = "TEST SENDER 2",
                ReceiverName = "TEST RECEIVER 2",
                ReceiverAddress = "TEST ADDRESS 2",
                ReceiverZip = "TEST ZIP 2",
                ReceiverCity = "TEST CITY 2",
                DelDate = DateTime.Now,
            });

并尝试将其绑定到这样的 WPF Datagrid：

dataGrid1.ItemsSource = ocOrderData;

Datagrid 的 XAML 如下所示：

        <DataGrid 
        AutoGenerateColumns="True" 
        Height="200" 
        HorizontalAlignment="Left" 
        Margin="23,172,0,0" 
        Name="dataGrid1" 
        VerticalAlignment="Top" 
        Width="1084" 
        />

现在，数据网格可以显示两行，但是没有数据，没有列，除了有两行的空白数据网格之外什么都没有。为什么是这样？我做错了什么？

感谢任何帮助。 :)

【问题讨论】：

标签： wpf .net-4.0 wpfdatagrid observablecollection

【解决方案1】：

您必须使用 OverViewItems 类中的属性而不是简单的公共字段。
这样做应该会使 DataGrid 正确地创建列。

public class OverViewItems
{
    public string OrderNo { get; set; }
    public int Pieces { get; set; }
    public string SenderName { get; set; }
    public string ReceiverName { get; set; }
    public string ReceiverAddress { get; set; }
    public string ReceiverZip { get; set; }
    public string ReceiverCity { get; set; }
    public DateTime DelDate { get; set; }
}

【讨论】：

【解决方案2】：

您可以只绑定到公共属性而不是字段。

public class OverViewItems
{
    public string OrderNo {get;set};
    public int Pieces {get;set};
    public string SenderName {get;set};
    public string ReceiverName {get;set};
    public string ReceiverAddress {get;set};
    public string ReceiverZip {get;set};
    public string ReceiverCity {get;set};
    public DateTime DelDate {get;set};
}

【讨论】：