Question

我有以下数据网格：

<DataGrid x:Name="dataGridOrderItems" Margin="4,10,2,70"
VerticalGridLinesBrush="LightGray"  HorizontalGridLinesBrush="LightGray" AlternatingRowBackground="Beige"  AlternationCount="2" 
SelectionMode="Single" SelectionUnit="FullRow" 
AutoGenerateColumns="False" IsReadOnly="False" SelectionChanged="dataGridOrderItems_SelectionChanged">
    <DataGrid.Columns>
        <DataGridTextColumn Header="Resource Id" Binding="{Binding ResourceId}" />
        <DataGridTextColumn Header="Resource Name" Binding="{Binding DisplayTitle}" />
        <DataGridTextColumn Header="Quantity" Binding="{Binding Quantity}" />
        <DataGridTextColumn Header="Type" Binding="{Binding ResourceType}"/>
        <DataGridTextColumn Header="Order Date" Binding="{Binding OrderDate, StringFormat=\{0:d\}}" />
        <DataGridTemplateColumn Header="Select" CellTemplate="{StaticResource template}"/>
    </DataGrid.Columns>
    <DataGrid.ContextMenu>
        <ContextMenu >
            <MenuItem Header="Select All" Click="SelectAllDatagridOrderItems"  />
        </ContextMenu>
    </DataGrid.ContextMenu>
</DataGrid>

绑定到以下数据源：

public class CustomerOrdersEntity
{
    public int ResourceId { get; set; }
    public string DisplayTitle { get; set; }

    public int Quantity { get; set; }

    public string ResourceType { get; set; }

    public int OrderId { get; set; }

    public string OrderDate { get; set; }
    public bool IsChecked { get; set; }
}

我尝试使用以下方法实现选择所有项目：

public void SelectAllDatagridOrderItems(object sender, RoutedEventArgs e)
{
    if (dataGridOrderItems.ItemsSource == null)
    {
        MessageBox.Show(
            "No resources are currently loaded! Please select a customer to continue.",
            "No resources loaded",
            MessageBoxButton.OK,
            MessageBoxImage.Asterisk);

        return;
    }

    dataGridOrderItems.SelectAll();
}

然而，这会引发以下异常：

未处理的类型＆＃39; System.NotSupportedException＆＃39;发生了在PresentationFramework.dll
中

我该如何处理？我想迭代itemsource并将IsChecked更新为每行true，但这看起来似乎不必要了，我确信必须有一个更简单的解决方案，我错过了？

选择WPF数据网格中的所有项目都抛出System.NotSupportedException

0 个答案: