目前我正在研究
WPF应用程序(使用MVVM),其中我在DataGridView中显示数据.
<DataGrid RowHeaderWidth="0" ItemsSource="{Binding PartsList,UpdateSourceTrigger=PropertyChanged}" AutoGenerateColumns="False">
<DataGrid.Columns>
<DataGridTextColumn Header="Item Name" IsReadOnly="True" Width="*" Binding="{Binding ProductName}"></DataGridTextColumn>
<DataGridTextColumn Header="Model Name" IsReadOnly="True" Width="*" Binding="{Binding CarModelName}"></DataGridTextColumn>
<DataGridTextColumn Header="Company Name" IsReadOnly="True" Width="*" Binding="{Binding CompanName}"></DataGridTextColumn>
<DataGridTextColumn Header="Price" IsReadOnly="True" Width="*" Binding="{Binding Rate}">
</DataGrid.Columns>
</DataGrid>
这里PartsList是实体Part的ObservableCollection.
现在我想将自定义列添加到显示折扣的DataGrid和显示净金额的另一列.我怎样才能做到这一点？
请提出一个好主意,因为我需要处理成千上万的记录,因此性能对我来说非常重要.
先感谢您.
解决方法
尝试在DataGrid的Loaded事件上添加列：
private void DataGrid_Loaded_1(object sender,RoutedEventArgs e)
{
dataGrid.Columns.Add((DataGridTextColumn)this.Resources["discountColumn"]);
dataGrid.Columns.Add((DataGridTextColumn)this.Resources["NetAmountColumn"]);
//Alternatively you can create columns in .cs like
dataGrid.Columns.Add(new DataGridTextColumn() { Header = "Dicount",Binding = new Binding("discount") });
dataGrid.Columns.Add(new DataGridTextColumn() { Header = "Net Amount",Binding = new Binding("NetAmount") });
}
<Window.Resources>
<DataGridTextColumn x:Key="discountColumn" Header="discount" IsReadOnly="True" Width="*" Binding="{Binding discount}"/>
<DataGridTextColumn x:Key="NetAmountColumn" Header="Net Amount" IsReadOnly="True" Width="*" Binding="{Binding NetAmount}"/>
</Window.Resources>
<DataGrid RowHeaderWidth="0" x:Name="dataGrid" Loaded="DataGrid_Loaded_1" />