本文整理汇总了C#中DataGrid.ProcessDownKey方法的典型用法代码示例。如果您正苦于以下问题：C# DataGrid.ProcessDownKey方法的具体用法？C# DataGrid.ProcessDownKey怎么用？C# DataGrid.ProcessDownKey使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类DataGrid的用法示例。
在下文中一共展示了DataGrid.ProcessDownKey方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: ItemsSource
//.........这里部分代码省略.........
});
this.EnqueueYieldThread();
this.EnqueueCallback(delegate
{
Assert.AreEqual(pcv1, control.ItemsSource);
Assert.AreEqual(pcv1[0], control.SelectedItem, "First item was not selected when setting ItemsSource to an ICollectionView");
Assert.AreEqual(0, control.SelectedIndex, "First item was not selected when setting ItemsSource to an ICollectionView");
Assert.AreEqual(0, control.CurrentColumnIndex, "The first cell should be current by default");
Assert.AreEqual(control.Columns[0], control.CurrentColumn, "The first cell should be current by default");
Assert.AreEqual(3, this._counter, "SelectionChanged should have been raised");
Assert.IsNotNull(this._selectionChangedEventArgs, "SelectionChanged should have been raised");
Assert.IsNotNull(this._selectionChangedEventArgs.AddedItems);
Assert.AreEqual(1, this._selectionChangedEventArgs.AddedItems.Count, "A single item should have been added");
Assert.AreEqual(pcv1[0], this._selectionChangedEventArgs.AddedItems[0], "A single item should have been added");
Assert.IsNotNull(this._selectionChangedEventArgs.RemovedItems);
Assert.AreEqual(1, this._selectionChangedEventArgs.RemovedItems.Count, "A single item should have been removed");
Assert.AreEqual(data3[3], this._selectionChangedEventArgs.RemovedItems[0], "A single item should have been removed");
pcv2.MoveCurrentToPosition(1);
control.ItemsSource = pcv2;
});
this.EnqueueYieldThread();
this.EnqueueCallback(delegate
{
Assert.AreEqual(pcv2, control.ItemsSource);
Assert.AreEqual(pcv2[1], control.SelectedItem, "CollectionView.CurrentItem was not selected by default");
Assert.AreEqual(1, control.SelectedIndex, "CollectionView.CurrentItem was not selected by default");
Assert.AreEqual(0, control.CurrentColumnIndex, "The first cell should be current by default");
Assert.AreEqual(control.Columns[0], control.CurrentColumn, "The first cell should be current by default");
Assert.AreEqual(4, this._counter, "SelectionChanged should have been raised");
Assert.IsNotNull(this._selectionChangedEventArgs, "SelectionChanged should have been raised");
Assert.IsNotNull(this._selectionChangedEventArgs.AddedItems);
Assert.AreEqual(1, this._selectionChangedEventArgs.AddedItems.Count, "A single item should have been added");
Assert.AreEqual(pcv2[1], this._selectionChangedEventArgs.AddedItems[0], "A single item should have been added");
Assert.IsNotNull(this._selectionChangedEventArgs.RemovedItems);
Assert.AreEqual(1, this._selectionChangedEventArgs.RemovedItems.Count, "A single item should have been removed");
Assert.AreEqual(pcv1[0], this._selectionChangedEventArgs.RemovedItems[0], "A single item should have been removed");
pcv3.MoveCurrentToPosition(-1);
control.ItemsSource = pcv3;
});
this.EnqueueYieldThread();
this.EnqueueCallback(delegate
{
Assert.AreEqual(pcv3, control.ItemsSource);
Assert.IsNull(control.SelectedItem, "No items should be selected if CollectionView.CurrentItem is null");
Assert.AreEqual(-1, control.SelectedIndex, "No items should be selected if CollectionView.CurrentItem is null");
Assert.AreEqual(-1, control.CurrentColumnIndex, "There should be no current cell if CollectionView.CurrentItem is null");
Assert.IsNull(control.CurrentColumn, "There should be no current cell if CollectionView.CurrentItem is null");
Assert.AreEqual(5, this._counter, "SelectionChanged should have been raised");
Assert.IsNotNull(this._selectionChangedEventArgs, "SelectionChanged should have been raised");
Assert.IsNotNull(this._selectionChangedEventArgs.AddedItems);
Assert.AreEqual(0, this._selectionChangedEventArgs.AddedItems.Count, "No items should have been added");
Assert.IsNotNull(this._selectionChangedEventArgs.RemovedItems);
Assert.AreEqual(1, this._selectionChangedEventArgs.RemovedItems.Count, "A single item should have been removed");
Assert.AreEqual(pcv2[1], this._selectionChangedEventArgs.RemovedItems[0], "A single item should have been removed");
control.ProcessDownKey();
});
this.EnqueueYieldThread();
this.EnqueueCallback(delegate
{
Assert.AreEqual(pcv3[0], control.SelectedItem, "The first item should be selected after pressing the down key");
Assert.AreEqual(0, control.SelectedIndex, "The first item should be selected after pressing the down key");
Assert.AreEqual(0, control.CurrentColumnIndex, "The first cell should be current after pressing the down key");
Assert.AreEqual(control.Columns[0], control.CurrentColumn, "The first cell should be current after pressing the down key");
Assert.AreEqual(6, this._counter, "SelectionChanged should have been raised");
Assert.IsNotNull(this._selectionChangedEventArgs, "SelectionChanged should have been raised");
Assert.IsNotNull(this._selectionChangedEventArgs.AddedItems);
Assert.AreEqual(1, this._selectionChangedEventArgs.AddedItems.Count, "A single item should have been added");
Assert.AreEqual(pcv3[0], this._selectionChangedEventArgs.AddedItems[0], "A single item should have been added");
Assert.IsNotNull(this._selectionChangedEventArgs.RemovedItems);
Assert.AreEqual(0, this._selectionChangedEventArgs.RemovedItems.Count, "No items should have been removed");
});
}
// Verify dependency property callback
if (hasSideEffects)
{
MethodInfo methodInfo = typeof(DataGrid).GetMethod("OnItemsSourcePropertyChanged", BindingFlags.Static | BindingFlags.NonPublic);
Assert.IsNotNull(methodInfo, "Expected DataGrid.ItemsSource to have static, non-public side-effect callback 'OnItemsSourcePropertyChanged'.");
//
}
else
{
MethodInfo methodInfo = typeof(DataGrid).GetMethod("OnItemsSourcePropertyChanged", BindingFlags.Static | BindingFlags.NonPublic);
Assert.IsNull(methodInfo, "Expected DataGrid.ItemsSource NOT to have static side-effect callback 'OnItemsSourcePropertyChanged'.");
}
this.EnqueueTestComplete();
}