在Xamdatarrid中自动扩展分层数据行

Question

我有一个Xamdatagrid有分层数据。我想显示所有这些自动消耗的记录。所以用户不必点击每个记录的+图标。

Answer 1

您可以像这样处理XamDataGrid的InitializeRecord事件（或覆盖OnInitializeRecord）：

    void grid_InitializeRecord(object sender, Infragistics.Windows.DataPresenter.Events.InitializeRecordEventArgs e)
    {
        grid.ExecuteCommand(DataPresenterCommands.ToggleRecordIsExpanded, e.Record);
    }

还有DataPresenterCommands.ExpandRecord，它扩展了网格的ActiveRecord。

Answer 2

上述答案很好，但对于那些喜欢将其视为明确行为的人来说，还有另一种观点：

public class AutoExpandXamDataGridRecordBehavior : Behavior<XamDataGrid>
{
    protected override void OnAttached()
    {
        if (AssociatedObject is XamDataGrid grid)
        {
            grid.InitializeRecord += OnInitializeRecord;
        }
    }


    protected override void OnDetaching()
    {
        if (AssociatedObject is XamDataGrid grid)
        {
            grid.InitializeRecord -= OnInitializeRecord;
        }
    }


    private void OnInitializeRecord(object sender, InitializeRecordEventArgs e)
    {
        ((XamDataGrid)sender).ExecuteCommand(DataPresenterCommands.ToggleRecordIsExpanded, e.Record);
    }
}