DataGrid列XAML

Question

我使用DataGrid来显示数据库表中的项目,我使用的是EF CodeFirst,因此数据库查询会自动生成一个对象.

这是我的XAML:

<DataGrid Name="details" Margin="0,20,0,0" ItemsSource="{Binding}">
</DataGrid>

这是它背后的代码:

data = new DbLayer();
        int cardNumId = (from dataCardNum in data.creditCards
                         where dataCardNum.creditCardNumber == cardNum
                         select dataCardNum.Id).First();
        debits =new ObservableCollection<Debit>(( from billings in data.charges
                   where billings.creditCardNumber.Id == cardNumId
                   select billings).ToList());
        DataContext = debits;

这解决了用我的数据库中的所有信息填充我的DataGrid.唯一的问题是我有两列我不想显示.我试图创建一个dataTemplate,它将使用我想要的列生成网格,但是当我将它绑定到datacontext时,它没有显示任何信息.

这是我的dataTemplate:

<DataTemplate x:Key="debitShow" DataType="DataTemplate:MonthBill.Debit">
        <DataGrid>
            <DataGrid.Columns>
                <DataGridTextColumn Header="amount" Binding="{Binding amount}"/>
                <DataGridTextColumn Header="charge date" Binding="{Binding chargeDate}"/>
                <DataGridCheckBoxColumn Header="charged" Binding="{Binding charged}"/>
                <DataGridTextColumn Header="store name" Binding="{Binding storeName}"/>
                <DataGridTextColumn Header="purchase date" Binding="{Binding debitDate}"/>
                <DataGridTextColumn Header="description" Binding="{Binding description}"/>
            </DataGrid.Columns>
        </DataGrid>
    </DataTemplate>

窗口xaml:

借方类(密钥属性用于创建代码优先数据库):

class Debit
{        
    [Key]
    public int Id { get; set; }
    public int amount { get; set; }
    public string storeName { get; set; }
    public DateTime debitDate { get; set; }
    public DateTime chargeDate { get; set; }
    public string description { get; set; }
    public creditCard creditCardNumber { get; set; }
    public bool charged { get; set; }
}

有任何想法吗？

Answer 1

如果您的目标是在没有您不需要的两列的情况下显示您的数据,我建议采用更简单的方法,即明确指定网格的列:

<DataGrid  ItemsSource="{Binding}" AutoGenerateColumns="False">
        <DataGrid.Columns>
            <DataGridTextColumn Header="amount" Binding="{Binding amount}"/>
            <DataGridTextColumn Header="charge date" Binding="{Binding chargeDate}"/>
            <DataGridCheckBoxColumn Header="charged" Binding="{Binding charged}"/>
            <DataGridTextColumn Header="store name" Binding="{Binding storeName}"/>
            <DataGridTextColumn Header="purchase date" Binding="{Binding debitDate}"/>
            <DataGridTextColumn Header="description" Binding="{Binding description}"/>
        </DataGrid.Columns>
    </DataGrid>

注意该AutoGenerateColumns="False" 属性.

如果我想控制单元格的渲染方式,我只会使用数据模板.如果您对默认演示文稿感到满意,我认为您不需要模板.