C# 在WPF数据网格中进行计算

我有一个自定义类型的集合，该集合已插入到数据网格中。datagrid显示该类型的各种属性，但我想在datagrid中包含一些“动态”列，它们是对其他列的计算

例如，这里是我的datagrid：

<DataGrid Margin="5, 15" Background="White" ItemsSource="{Binding StandardTrades}" SelectedItem="{Binding SelectedStandardTrade}" CanUserSortColumns="True" CanUserAddRows="False" AutoGenerateColumns="False" materialDesign:DataGridAssist.CellPadding="13 20 8 8" materialDesign:DataGridAssist.ColumnHeaderPadding="8">
    <DataGrid.Columns>
        <DataGridTextColumn IsReadOnly="true" Binding="{Binding TradeDate, StringFormat={}{0:dd/MM/yyyy}}" Header="Trade Date" EditingElementStyle="{StaticResource MaterialDesignDataGridTextColumnEditingStyle}" />
        <DataGridTextColumn IsReadOnly="true" Header="Client" Binding="{Binding Exchange.Client.Name}" />
        <DataGridTextColumn IsReadOnly="true" Header="Clearer" Binding="{Binding Exchange.Clearer.Name}" />
        <DataGridTextColumn IsReadOnly="true" Header="Exchange" Binding="{Binding Exchange.ExchangeCode}" />
        <DataGridTextColumn IsReadOnly="true" Header="CCY" Binding="{Binding Exchange.Currency.Code}" />
        <DataGridTextColumn IsReadOnly="true" Header="B/S" Binding="{Binding BOrS}" />
        <DataGridTextColumn IsReadOnly="true" Header="Product" Binding="{Binding Product}" />
        <DataGridTextColumn IsReadOnly="true" Header="Volume" Binding="{Binding Volume}" />
        <DataGridTextColumn IsReadOnly="true" Header="Maturity" Binding="{Binding Maturity}" />
        <DataGridTextColumn IsReadOnly="true" Header="Reference" Binding="{Binding Reference}" />
        <DataGridTextColumn IsReadOnly="true" Header="Price" Binding="{Binding Price}" />
        <DataGridTextColumn IsReadOnly="true" Header="Rate" Binding="{Binding Exchange.Rate}" />
        <DataGridTextColumn IsReadOnly="true" Header="Commission total" Binding="{Binding Exchange.Rate * Exchange.Volume}" />
    </DataGrid.Columns>
</DataGrid>

<DataGridTextColumn IsReadOnly="true" Header="Commission total">
    <DataGridTextColumn.Binding>
        <MultiBinding Converter="{StaticResource AddConvertor}">
            <Binding Path="Volume" />
            <Binding Path="Exchange.Rate" />
        </MultiBinding>
    </DataGridTextColumn.Binding>
</DataGridTextColumn>

如您所见，在最后一列中，我想生成一个输出，用于计算速率*体积

我该怎么做呢？我不知道如何使用转换器之前，所以如果我需要使用这个可以有人告诉我如何，请

---

非常感谢

好的，谢谢Greg向我展示了多绑定转换器，我直到今天才看到它们

这就是我找到解决办法的原因

我创建了一个新的转换器类：

public class AddConverter : IMultiValueConverter
{
    public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
    {
        decimal result = int.Parse(values[0].ToString()) * decimal.Parse(values[1].ToString());
        return result.ToString(CultureInfo.InvariantCulture);
    }

    public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture)
    {
        throw new NotImplementedException();
    }
}

Convert方法将第一个参数作为int，第二个参数作为十进制，以计算总佣金

然后，我将其插入我的XAML代码中，确保首先将转换器作为资源包含到我的类中：

<UserControl.Resources>
    <converters:AddConverter x:Key="AddConvertor"/>
</UserControl.Resources>

最后，在datagrid中实现这一点：

<DataGrid Margin="5, 15" Background="White" ItemsSource="{Binding StandardTrades}" SelectedItem="{Binding SelectedStandardTrade}" CanUserSortColumns="True" CanUserAddRows="False" AutoGenerateColumns="False" materialDesign:DataGridAssist.CellPadding="13 20 8 8" materialDesign:DataGridAssist.ColumnHeaderPadding="8">
    <DataGrid.Columns>
        <DataGridTextColumn IsReadOnly="true" Binding="{Binding TradeDate, StringFormat={}{0:dd/MM/yyyy}}" Header="Trade Date" EditingElementStyle="{StaticResource MaterialDesignDataGridTextColumnEditingStyle}" />
        <DataGridTextColumn IsReadOnly="true" Header="Client" Binding="{Binding Exchange.Client.Name}" />
        <DataGridTextColumn IsReadOnly="true" Header="Clearer" Binding="{Binding Exchange.Clearer.Name}" />
        <DataGridTextColumn IsReadOnly="true" Header="Exchange" Binding="{Binding Exchange.ExchangeCode}" />
        <DataGridTextColumn IsReadOnly="true" Header="CCY" Binding="{Binding Exchange.Currency.Code}" />
        <DataGridTextColumn IsReadOnly="true" Header="B/S" Binding="{Binding BOrS}" />
        <DataGridTextColumn IsReadOnly="true" Header="Product" Binding="{Binding Product}" />
        <DataGridTextColumn IsReadOnly="true" Header="Volume" Binding="{Binding Volume}" />
        <DataGridTextColumn IsReadOnly="true" Header="Maturity" Binding="{Binding Maturity}" />
        <DataGridTextColumn IsReadOnly="true" Header="Reference" Binding="{Binding Reference}" />
        <DataGridTextColumn IsReadOnly="true" Header="Price" Binding="{Binding Price}" />
        <DataGridTextColumn IsReadOnly="true" Header="Rate" Binding="{Binding Exchange.Rate}" />
        <DataGridTextColumn IsReadOnly="true" Header="Commission total" Binding="{Binding Exchange.Rate * Exchange.Volume}" />
    </DataGrid.Columns>
</DataGrid>

<DataGridTextColumn IsReadOnly="true" Header="Commission total">
    <DataGridTextColumn.Binding>
        <MultiBinding Converter="{StaticResource AddConvertor}">
            <Binding Path="Volume" />
            <Binding Path="Exchange.Rate" />
        </MultiBinding>
    </DataGridTextColumn.Binding>
</DataGridTextColumn>

---

Google类似于“多绑定转换器wpf”。这是应该让你开始的。谢谢你的帮助，我发布了我的解决方案。