c# - 如何创建带有复选框并绑定(bind)到数据源的 DatagridTemplateColumn？

Question

如果我忽略了什么，请提前致歉 - 我仍然发现自己在使用 Xaml 而不是 Windows 窗体。

我正在尝试将数据源绑定(bind)到其中一列是复选框的 DataGrid。我原来的解决方案对此效果很好，但需要用户双击复选框:

<Window x:Class="ExecBoxInvoices.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="MainWindow" Height="507" Width="676">
<Grid Margin="0,0,0,51">
    <DataGrid x:Name="InvoiceDG" HorizontalAlignment="Left" Height="165" Margin="134,251,0,0" VerticalAlignment="Top" Width="400" ItemsSource="{Binding}" AutoGenerateColumns="False">
        <DataGrid.Columns>
            <DataGridCheckBoxColumn Header="Generate" Binding="{Binding Generate}" Width="80"/>
            <DataGridTextColumn Header="Table_Number" Binding="{Binding Table_Number}" Width="120"/>
            <DataGridTextColumn Header="Transaction_Date" Binding="{Binding Transaction_Date}" Width="175"/>
            <DataGridTextColumn Header="Transaction_ID" Visibility="Hidden" Binding="{Binding Transaction_ID}"/>
        </DataGrid.Columns>
    </DataGrid>
</Grid>

单击复选框的新解决方案如下所示，但不起作用(错误显示在Binding="{Binding Generate}"):

<Window x:Class="ExecBoxInvoices.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="MainWindow" Height="507" Width="676">
<Grid Margin="0,0,0,51">
    <DataGrid x:Name="InvoiceDG" HorizontalAlignment="Left" Height="165" Margin="134,251,0,0" VerticalAlignment="Top" Width="400" ItemsSource="{Binding}" AutoGenerateColumns="False">
        <DataGrid.Columns>
            <DataGridTemplateColumn Header="Generate" Width="60" Binding="{Binding Generate}">
                <DataGridTemplateColumn.CellTemplate>
                    <DataTemplate>
                        <CheckBox IsChecked="{Binding Path=IsSelected, UpdateSourceTrigger=PropertyChanged}"/>
                    </DataTemplate>
                </DataGridTemplateColumn.CellTemplate>
            </DataGridTemplateColumn>
            <DataGridTextColumn Header="Table_Number" Binding="{Binding Table_Number}" Width="120"/>
            <DataGridTextColumn Header="Transaction_Date" Binding="{Binding Transaction_Date}" Width="175"/>
            <DataGridTextColumn Header="Transaction_ID" Visibility="Hidden" Binding="{Binding Transaction_ID}"/>
        </DataGrid.Columns>
    </DataGrid>
</Grid>

供引用，用于设置源的代码是:

InvoiceDG.ItemsSource = recordCollection;

其中 recordCollection 是一个列表:

class InvoiceRow
{
    public bool Generate { get; set; }
    public string Table_Number { get; set; }
    public string Transaction_Date { get; set; }
    public string Transaction_ID { get; set; }

    public InvoiceRow(bool generate, string table_Number, string transaction_Date, string transaction_ID)
    {
        this.Generate = generate;
        this.Table_Number = table_Number;
        this.Transaction_Date = transaction_Date;
        this.Transaction_ID = transaction_ID;
    }
}

Answer 1

试试这个:

<DataGridTemplateColumn Header="Generate" Width="60">
     <DataGridTemplateColumn.CellTemplate>
           <DataTemplate>
                <CheckBox IsChecked="{Binding Generate, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" />
           </DataTemplate>
     </DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>