public void TreeViewItemContainerTransitionTest()
{
RunOnUIThread.Execute(() =>
{
TreeView treeView = new TreeView();
treeView.Loaded += (object sender, RoutedEventArgs e) =>
{
var transition = (TransitionCollection)XamlReader.Load(
@"<TransitionCollection xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation'>
<ContentThemeTransition />
</TransitionCollection>");
treeView.ItemContainerTransitions = transition;
var node = new TreeViewNode();
treeView.RootNodes.Add(node);
var listControl = FindVisualChildByName(treeView, "ListControl") as TreeViewList;
var treeViewItem = listControl.ContainerFromItem(node) as TreeViewItem;
Verify.AreEqual(treeViewItem.ContentTransitions, transition);
};
});
}
public void VerifyVisualTree()
{
TreeView treeView = null;
RunOnUIThread.Execute(() =>
{
treeView = new TreeView()
{
Width = 400, Height = 400
};
var node1 = new TreeViewNode()
{
Content = "Node1"
};
treeView.RootNodes.Add(node1);
});
TestUtilities.SetAsVisualTreeRoot(treeView);
VisualTreeTestHelper.VerifyVisualTree(root: treeView, verificationFileNamePrefix: "TreeView");
}
public void TreeViewItemTemplateTest()
{
RunOnUIThread.Execute(() =>
{
TreeView treeView = new TreeView();
treeView.Loaded += (object sender, RoutedEventArgs e) =>
{
var dataTemplate = (DataTemplate)XamlReader.Load(
@"<DataTemplate xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation'>
<TextBlock Text='TreeViewItemTemplate'/>
</DataTemplate>");
treeView.ItemTemplate = dataTemplate;
var node = new TreeViewNode();
treeView.RootNodes.Add(node);
var listControl = FindVisualChildByName(treeView, "ListControl") as TreeViewList;
var treeViewItem = listControl.ContainerFromItem(node) as TreeViewItem;
Verify.AreEqual(treeViewItem.ContentTemplate, dataTemplate);
};
});
}
private void GetRootNodeChildrenOrder(TreeView tree)
{
StringBuilder sb = new StringBuilder();
Stack <TreeViewNode> pendingNodes = new Stack <TreeViewNode>();
pendingNodes.Push(tree.RootNodes[0]);
while (pendingNodes.Count > 0)
{
var currentNode = pendingNodes.Pop();
var children = currentNode.Children;
var size = children.Count;
for (int i = 0; i < size; i++)
{
pendingNodes.Push(currentNode.Children[size - 1 - i]);
}
sb.Append(GetNodeContent(currentNode) + " | ");
}
Results.Text = sb.ToString();
}
private string GetRootNodeChildrenOrder(TreeView tree)
{
List <string> result = new List <string>();
Stack <TreeViewNode> pendingNodes = new Stack <TreeViewNode>();
pendingNodes.Push(tree.RootNodes[0]);
while (pendingNodes.Count > 0)
{
var currentNode = pendingNodes.Pop();
var size = currentNode.Children.Count;
for (int i = 0; i < size; i++)
{
pendingNodes.Push(currentNode.Children[size - 1 - i]);
}
result.Add(GetNodeContent(currentNode));
}
return(string.Join(" | ", result));
}
public void TreeViewItemContainerStyleTest()
{
RunOnUIThread.Execute(() =>
{
TreeView treeView = new TreeView();
treeView.Loaded += (object sender, RoutedEventArgs e) =>
{
var style = (Style)XamlReader.Load(
@"<Style xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation'>
<Setter Property='Background' Value='Green'/>
</Style>");
treeView.ItemContainerStyle = style;
var node = new TreeViewNode();
treeView.RootNodes.Add(node);
var listControl = FindVisualChildByName(treeView, "ListControl") as TreeViewList;
var treeViewItem = listControl.ContainerFromItem(node) as TreeViewItem;
Verify.AreEqual(treeViewItem.Style, style);
};
});
}
public void TreeViewBackgroundTest()
{
RunOnUIThread.Execute(() =>
{
var treeView = new TreeView();
Content = treeView;
Content.UpdateLayout();
var treeViewList = VisualTreeUtils.FindVisualChildByName(treeView, "ListControl") as TreeViewList;
// Make sure the TreeViewList does not already have the background color we are using for this test.
bool testCondition = treeViewList.Background is SolidColorBrush brush && brush.Color == Colors.Green;
Verify.IsFalse(testCondition, "The default TreeView background color should not match the test color used.");
// Check if the Background API affects the TreeView control.
treeView.Background = new SolidColorBrush(Colors.Green);
Content.UpdateLayout();
testCondition = treeViewList.Background is SolidColorBrush brush2 && brush2.Color == Colors.Green;
Verify.IsTrue(testCondition, "The TreeView background UI should have matched the specified test color.");
});
}
private String GetRootNodeChildrenOrder(TreeView tree)
{
StringBuilder sb = new StringBuilder();
Stack <TreeViewNode> pendingNodes = new Stack <TreeViewNode>();
pendingNodes.Push(tree.RootNodes[0]);
while (pendingNodes.Count > 0)
{
var currentNode = pendingNodes.Pop();
var size = currentNode.Children.Count;
for (int i = 0; i < size; i++)
{
pendingNodes.Push(currentNode.Children[size - 1 - i]);
}
if (sb.Length > 0)
{
sb.Append(" | ");
}
sb.Append(GetNodeContent(currentNode));
}
return(sb.ToString());
}
private void TestTreeView_Expanding(TreeView sender, TreeViewExpandingEventArgs args)
{
var loadingNode = args.Node;
if (loadingNode == _virtualizedNode)
{
loadingNode.Children.Add(new TreeViewNode()
{
Content = "Loaded: 1"
});
loadingNode.Children.Add(new TreeViewNode()
{
Content = "Loaded: 2"
});
loadingNode.Children.Add(new TreeViewNode()
{
Content = "Loaded: 3"
});
loadingNode.HasUnrealizedChildren = false;
Results.Text = "Loaded";
}
}
private string GetSelection(TreeView tree)
{
int count = tree.SelectedNodes.Count;
if (count != tree.SelectedItems.Count)
{
return("SelectedNodes.Count != SelectedItems.Count");
}
List <string> result = new List <string>();
for (int i = 0; i < count; i++)
{
// Make sure selectedNodes and SelectedItems are in sync
var node = tree.SelectedNodes[i];
var item = IsInContentMode() ? node.Content : node;
if (item != tree.SelectedItems[i])
{
return("$SelectedNodes[{i}] != SelectedItems[{i}]");
}
result.Add(GetNodeContent(node));
}
result.Sort();
// Verify SelectedItem and SelectedNode for single selection
if (tree.SelectionMode == TreeViewSelectionMode.Single && result.Count > 0)
{
if (tree.SelectedItem != tree.SelectedItems[0] || tree.SelectedNode != tree.SelectedNodes[0])
{
return("SelectedItem!=SelectedItems[0] || SelectedNode!=SelectedNodes[0]");
}
}
return(result.Count > 0 ? "Selected: " + string.Join(", ", result) : "Nothing selected");
}
public void TreeViewItemsSourceUpdateTest()
{
var treeView = new TreeView();
var items = CreateTreeViewItemsSource();
treeView.ItemsSource = items;
// Insert
var newItem = new TreeViewItemSource()
{
Content = "newItem"
};
items.Add(newItem);
Verify.AreEqual(treeView.RootNodes.Count, 3);
var itemFromNode = treeView.RootNodes[2].Content as TreeViewItemSource;
Verify.AreEqual(newItem.Content, itemFromNode.Content);
// Remove
items.Remove(newItem);
Verify.AreEqual(treeView.RootNodes.Count, 2);
// Replace
var item3 = new TreeViewItemSource()
{
Content = "3"
};
items[1] = item3;
itemFromNode = treeView.RootNodes[1].Content as TreeViewItemSource;
Verify.AreEqual(item3.Content, itemFromNode.Content);
// Clear
items.Clear();
Verify.AreEqual(treeView.RootNodes.Count, 0);
}
private void GetCheckBoxStates(TreeView tree)
{
StringBuilder sb = new StringBuilder();
Stack <TreeViewNode> pendingNodes = new Stack <TreeViewNode>();
pendingNodes.Push(tree.RootNodes[0]);
while (pendingNodes.Count > 0)
{
var currentNode = pendingNodes.Pop();
var children = currentNode.Children;
var size = children.Count;
for (int i = 0; i < size; i++)
{
pendingNodes.Push(currentNode.Children[size - 1 - i]);
}
var treeViewItem = tree.ContainerFromNode(currentNode) as TreeViewItem;
var checkBox = FindVisualChildByName(treeViewItem, "MultiSelectCheckBox") as CheckBox;
if (checkBox.IsChecked == true)
{
// selected
sb.Append("s|");
}
else if (checkBox.IsChecked == false)
{
// unselected
sb.Append("u|");
}
else
{
// partial selected
sb.Append("p|");
}
}
Results.Text = sb.ToString();
}
private void SetAutomationIdForNodes(TreeView tree)
{
var listControl = FindVisualChildByName(this.TestTreeView, "ListControl") as TreeViewList;
Stack <TreeViewNode> pendingNodes = new Stack <TreeViewNode>();
foreach (var node in tree.RootNodes)
{
pendingNodes.Push(node);
}
while (pendingNodes.Count > 0)
{
var currentNode = pendingNodes.Pop();
foreach (var child in currentNode.Children)
{
pendingNodes.Push(child);
}
var container = tree.ContainerFromNode(currentNode);
if (container != null)
{
AutomationProperties.SetAutomationId(container as DependencyObject, GetNodeContent(currentNode));
}
}
}
private String GetSelection(TreeView tree)
{
String result = "";
if (TestTreeView.SelectionMode == TreeViewSelectionMode.Single)
{
var listControl = FindVisualChildByName(tree, "ListControl") as TreeViewList;
if (IsInContentMode())
{
result = "ItemSelected:" + ((TreeViewItemSource)listControl.SelectedItem).Content;
}
else
{
result = "ItemSelected:" + ((TreeViewNode)listControl.SelectedItem).Content.ToString();
}
}
else if (TestTreeView.SelectionMode == TreeViewSelectionMode.Multiple)
{
var items = tree.SelectedNodes;
int count = items.Count;
result = "Num. Selected: " + count;
}
return(result);
}
private void ContentModeTestTreeView_Expanding(TreeView sender, TreeViewExpandingEventArgs args)
{
var loadingItem = args.Item as TreeViewItemSource;
var count = TestTreeViewItemsSource[0].Children.Count;
if (loadingItem == TestTreeViewItemsSource[0].Children[count - 1])
{
loadingItem.Children.Add(new TreeViewItemSource()
{
Content = "Loaded: 1"
});
loadingItem.Children.Add(new TreeViewItemSource()
{
Content = "Loaded: 2"
});
loadingItem.Children.Add(new TreeViewItemSource()
{
Content = "Loaded: 3"
});
loadingItem.HasUnrealizedChildren = false;
Results.Text = "Loaded";
}
}
public void TreeViewUpdateTest()
{
TreeView treeView = null;
TreeViewList listControl = null;
TreeViewNode treeViewNode1 = null;
TreeViewNode treeViewNode2 = null;
TreeViewNode treeViewNode3 = null;
TreeViewNode treeViewNode4 = null;
TreeViewNode treeViewNode5 = null;
var loadedWaiter = new ManualResetEvent(false);
RunOnUIThread.Execute(() =>
{
treeViewNode1 = new TreeViewNode();
treeViewNode2 = new TreeViewNode();
treeViewNode3 = new TreeViewNode();
treeViewNode4 = new TreeViewNode();
treeViewNode5 = new TreeViewNode();
treeViewNode1.Children.Add(treeViewNode2);
treeViewNode1.Children.Add(treeViewNode3);
treeViewNode1.Children.Add(treeViewNode4);
treeViewNode1.Children.Add(treeViewNode5);
treeView = new TreeView();
treeView.Loaded += (object sender, RoutedEventArgs e) =>
{
listControl = FindVisualChildByName(treeView, "ListControl") as TreeViewList;
loadedWaiter.Set();
};
MUXControlsTestApp.App.TestContentRoot = treeView;
});
Verify.IsTrue(loadedWaiter.WaitOne(TimeSpan.FromMinutes(1)), "Check if Loaded was successfully raised");
RunOnUIThread.Execute(() =>
{
treeView.RootNodes.Add(treeViewNode1);
Verify.AreEqual(listControl.Items.Count, 1);
treeView.Expand(treeViewNode1);
Verify.AreEqual(listControl.Items.Count, 5);
treeViewNode1.Children.RemoveAt(2);
Verify.AreEqual(listControl.Items.Count, 4);
Verify.AreEqual(listControl.Items[0], treeViewNode1);
Verify.AreEqual(listControl.Items[1], treeViewNode2);
Verify.AreEqual(listControl.Items[2], treeViewNode3);
Verify.AreEqual(listControl.Items[3], treeViewNode5);
treeViewNode1.Children.Insert(1, treeViewNode4);
Verify.AreEqual(listControl.Items.Count, 5);
Verify.AreEqual(listControl.Items[0], treeViewNode1);
Verify.AreEqual(listControl.Items[1], treeViewNode2);
Verify.AreEqual(listControl.Items[2], treeViewNode4);
Verify.AreEqual(listControl.Items[3], treeViewNode3);
Verify.AreEqual(listControl.Items[4], treeViewNode5);
treeViewNode1.Children.Clear();
Verify.AreEqual(listControl.Items.Count, 1);
Verify.AreEqual(listControl.Items[0], treeViewNode1);
// Put things back
MUXControlsTestApp.App.TestContentRoot = null;
});
}
public void TreeViewClearAndSetAtTest()
{
TreeView treeView = null;
TreeViewList listControl = null;
var loadedWaiter = new ManualResetEvent(false);
RunOnUIThread.Execute(() =>
{
treeView = new TreeView();
treeView.Loaded += (object sender, RoutedEventArgs e) =>
{
listControl = FindVisualChildByName(treeView, "ListControl") as TreeViewList;
loadedWaiter.Set();
};
MUXControlsTestApp.App.TestContentRoot = treeView;
});
Verify.IsTrue(loadedWaiter.WaitOne(TimeSpan.FromMinutes(1)), "Check if Loaded was successfully raised");
RunOnUIThread.Execute(() =>
{
// Verify TreeViewNode::SetAt
TreeViewNode setAtChildCheckNode = new TreeViewNode()
{
Content = "Set At Child"
};
TreeViewNode setAtRootCheckNode = new TreeViewNode()
{
Content = "Set At Root"
};
TreeViewNode child1 = new TreeViewNode()
{
Content = "Child 1"
};
child1.Children.Add(new TreeViewNode()
{
Content = "Child 1:1"
});
TreeViewNode child2 = new TreeViewNode()
{
Content = "Child 2"
};
child2.Children.Add(new TreeViewNode()
{
Content = "Child 2:1"
});
child2.Children.Add(new TreeViewNode()
{
Content = "Child 2:2"
});
treeView.RootNodes.Add(child1);
child1.IsExpanded = true;
treeView.RootNodes.Add(child2);
Verify.AreEqual(listControl.Items.Count, 3);
// SetAt node under child node which is not expanded
child2.Children[1] = setAtChildCheckNode;
Verify.AreEqual(listControl.Items.Count, 3);
// SetAt node under root node and child2 is expanded
treeView.RootNodes[0] = setAtRootCheckNode;
child2.IsExpanded = true;
Verify.AreEqual(listControl.Items.Count, 4);
// Verify RootNode.Clear
treeView.RootNodes.Clear();
Verify.AreEqual(listControl.Items.Count, 0);
// test clear without any child node
treeView.RootNodes.Clear();
Verify.AreEqual(listControl.Items.Count, 0);
// Put things back
MUXControlsTestApp.App.TestContentRoot = null;
});
}
public async Task TreeViewSelectionChangedMultipleMode()
{
// input data:
// - 1
// - 11
// - 12
// - 13
// - 2
// - 21
// - 3
TreeView treeView = null;
TreeViewNode node1 = null;
TreeViewNode node11 = null;
TreeViewNode node12 = null;
TreeViewNode node13 = null;
TreeViewNode node2 = null;
TreeViewNode node21 = null;
TreeViewNode node3 = null;
TreeViewSelectionChangedEventArgs selectionChangedEventArgs = null;
await RunOnUIThread.ExecuteAsync(() =>
{
treeView = new TreeView {
SelectionMode = TreeViewSelectionMode.Multiple
};
treeView.SelectionChanged += (s, e) => selectionChangedEventArgs = e;
node1 = new TreeViewNode {
Content = "1", IsExpanded = true
};
node11 = new TreeViewNode {
Content = "11"
};
node12 = new TreeViewNode {
Content = "12"
};
node13 = new TreeViewNode {
Content = "13"
};
node1.Children.Add(node11);
node1.Children.Add(node12);
node1.Children.Add(node13);
node2 = new TreeViewNode {
Content = "2", IsExpanded = true
};
node21 = new TreeViewNode {
Content = "21"
};
node2.Children.Add(node21);
node3 = new TreeViewNode {
Content = "3"
};
treeView.RootNodes.Add(node1);
treeView.RootNodes.Add(node2);
treeView.RootNodes.Add(node3);
TestServices.WindowHelper.WindowContent = treeView;
});
await TestServices.WindowHelper.WaitForIdle();
await RunOnUIThread.ExecuteAsync(() =>
{
var tvi1 = (TreeViewItem)treeView.ContainerFromItem(node1);
var tvi11 = (TreeViewItem)treeView.ContainerFromItem(node11);
var tvi12 = (TreeViewItem)treeView.ContainerFromItem(node12);
var tvi13 = (TreeViewItem)treeView.ContainerFromItem(node13);
var tvi2 = (TreeViewItem)treeView.ContainerFromItem(node2);
var tvi21 = (TreeViewItem)treeView.ContainerFromItem(node21);
var tvi3 = (TreeViewItem)treeView.ContainerFromItem(node3);
// - 1 selected
// - 11 selected
// - 12 selected
// - 13 selected
// - 2
// - 21
// - 3
tvi1.IsSelected = true;
Verify.IsNotNull(selectionChangedEventArgs);
Verify.AreEqual(4, selectionChangedEventArgs.AddedItems.Count);
Verify.IsTrue(selectionChangedEventArgs.AddedItems.Contains(node1));
Verify.IsTrue(selectionChangedEventArgs.AddedItems.Contains(node11));
Verify.IsTrue(selectionChangedEventArgs.AddedItems.Contains(node12));
Verify.IsTrue(selectionChangedEventArgs.AddedItems.Contains(node13));
Verify.AreEqual(0, selectionChangedEventArgs.RemovedItems.Count);
selectionChangedEventArgs = null;
// - 1 selected
// - 11
// - 12 selected
// - 13 selected
// - 2
// - 21
// - 3
tvi11.IsSelected = true;
tvi11.IsSelected = false;
Verify.IsNotNull(selectionChangedEventArgs);
Verify.AreEqual(0, selectionChangedEventArgs.AddedItems.Count);
Verify.AreEqual(1, selectionChangedEventArgs.RemovedItems.Count);
Verify.IsTrue(selectionChangedEventArgs.RemovedItems.Contains(node11));
selectionChangedEventArgs = null;
// - 1 selected
// - 11 selected
// - 12 selected
// - 13 selected
// - 2 selected
// - 21 selected
// - 3 selected
treeView.SelectAll();
Verify.IsNotNull(selectionChangedEventArgs);
var items = selectionChangedEventArgs.AddedItems.ToList();
Verify.AreEqual(7, selectionChangedEventArgs.AddedItems.Count);
Verify.IsTrue(selectionChangedEventArgs.AddedItems.Contains(node1));
Verify.IsTrue(selectionChangedEventArgs.AddedItems.Contains(node11));
Verify.IsTrue(selectionChangedEventArgs.AddedItems.Contains(node12));
Verify.IsTrue(selectionChangedEventArgs.AddedItems.Contains(node13));
Verify.IsTrue(selectionChangedEventArgs.AddedItems.Contains(node2));
Verify.IsTrue(selectionChangedEventArgs.AddedItems.Contains(node21));
Verify.IsTrue(selectionChangedEventArgs.AddedItems.Contains(node3));
Verify.AreEqual(0, selectionChangedEventArgs.RemovedItems.Count);
});
}
public async Task TreeViewSelectionChangedSingleMode()
{
TreeView treeView = null;
TreeViewSelectionChangedEventArgs selectionChangedEventArgs = null;
await RunOnUIThread.ExecuteAsync(() =>
{
// input data:
// - 1
// - 2
// - 3
treeView = new TreeView {
SelectionMode = TreeViewSelectionMode.Single
};
treeView.SelectionChanged += (s, e1) => selectionChangedEventArgs = e1;
var collection = new ObservableCollection <int> {
1, 2, 3
};
treeView.ItemsSource = collection;
TestServices.WindowHelper.WindowContent = treeView;
});
await TestServices.WindowHelper.WaitForIdle();
await RunOnUIThread.ExecuteAsync(() =>
{
var tvi1 = (TreeViewItem)treeView.ContainerFromItem(1);
var tvi2 = (TreeViewItem)treeView.ContainerFromItem(2);
tvi1.IsSelected = true;
Verify.IsNotNull(selectionChangedEventArgs);
Verify.AreEqual(1, selectionChangedEventArgs.AddedItems.Count);
Verify.IsTrue(selectionChangedEventArgs.AddedItems.Contains(1));
Verify.AreEqual(0, selectionChangedEventArgs.RemovedItems.Count);
selectionChangedEventArgs = null;
tvi2.IsSelected = true;
Verify.IsNotNull(selectionChangedEventArgs);
Verify.AreEqual(1, selectionChangedEventArgs.AddedItems.Count);
Verify.IsTrue(selectionChangedEventArgs.AddedItems.Contains(2));
Verify.AreEqual(1, selectionChangedEventArgs.RemovedItems.Count);
Verify.IsTrue(selectionChangedEventArgs.RemovedItems.Contains(1));
selectionChangedEventArgs = null;
tvi2.IsSelected = false;
Verify.IsNotNull(selectionChangedEventArgs);
Verify.AreEqual(0, selectionChangedEventArgs.AddedItems.Count);
Verify.AreEqual(1, selectionChangedEventArgs.RemovedItems.Count);
Verify.IsTrue(selectionChangedEventArgs.RemovedItems.Contains(2));
selectionChangedEventArgs = null;
tvi1.IsSelected = true;
Verify.IsNotNull(selectionChangedEventArgs);
Verify.AreEqual(1, selectionChangedEventArgs.AddedItems.Count);
Verify.IsTrue(selectionChangedEventArgs.AddedItems.Contains(1));
Verify.AreEqual(0, selectionChangedEventArgs.RemovedItems.Count);
selectionChangedEventArgs = null;
treeView.ItemsSource = null;
Verify.IsNotNull(selectionChangedEventArgs);
Verify.AreEqual(0, selectionChangedEventArgs.AddedItems.Count);
Verify.AreEqual(1, selectionChangedEventArgs.RemovedItems.Count);
Verify.IsTrue(selectionChangedEventArgs.RemovedItems.Contains(1));
});
}
public async Task TreeViewClearAndSetAtTest()
{
TreeView treeView = null;
await RunOnUIThread.ExecuteAsync(() =>
{
treeView = new TreeView();
TestServices.WindowHelper.WindowContent = treeView;
});
await TestServices.WindowHelper.WaitForIdle();
await RunOnUIThread.ExecuteAsync(() =>
{
var listControl = FindVisualChildByName(treeView, "ListControl") as TreeViewList;
// Verify TreeViewNode::SetAt
TreeViewNode setAtChildCheckNode = new TreeViewNode()
{
Content = "Set At Child"
};
TreeViewNode setAtRootCheckNode = new TreeViewNode()
{
Content = "Set At Root"
};
TreeViewNode child1 = new TreeViewNode()
{
Content = "Child 1"
};
child1.Children.Add(new TreeViewNode()
{
Content = "Child 1:1"
});
TreeViewNode child2 = new TreeViewNode()
{
Content = "Child 2"
};
child2.Children.Add(new TreeViewNode()
{
Content = "Child 2:1"
});
child2.Children.Add(new TreeViewNode()
{
Content = "Child 2:2"
});
treeView.RootNodes.Add(child1);
child1.IsExpanded = true;
treeView.RootNodes.Add(child2);
Verify.AreEqual(listControl.GetItems()?.Count(), 3);
// SetAt node under child node which is not expanded
child2.Children[1] = setAtChildCheckNode;
Verify.AreEqual(listControl.GetItems()?.Count(), 3);
// SetAt node under root node and child2 is expanded
treeView.RootNodes[0] = setAtRootCheckNode;
child2.IsExpanded = true;
Verify.AreEqual(listControl.GetItems()?.Count(), 4);
// Verify RootNode.Clear
treeView.RootNodes.Clear();
Verify.AreEqual(listControl.GetItems()?.Count(), 0);
// test clear without any child node
treeView.RootNodes.Clear();
Verify.AreEqual(listControl.GetItems()?.Count(), 0);
});
await TestServices.WindowHelper.WaitForIdle();
}
/// <summary>
/// Private method to do the work of UNselecting all treeview nodes.
/// </summary>
private void DeselectAllNodes(TreeView treeView)
{
treeView.SelectedNodes.Clear();
}
private void treeView_DragItemsCompleted(Microsoft.UI.Xaml.Controls.TreeView sender, Microsoft.UI.Xaml.Controls.TreeViewDragItemsCompletedEventArgs args)
{
ViewModel.FixNodes();
}
private void DragItemsCompletedForApiTest(TreeView sender, TreeViewDragItemsCompletedEventArgs args)
{
Results.Text += "->DragItemsCompleted:" + GetDraggedItemsNames(args.Items);
}
private void propTreeView_SelectionChanged(Microsoft.UI.Xaml.Controls.TreeView sender, Microsoft.UI.Xaml.Controls.TreeViewSelectionChangedEventArgs args)
{
UpdateSelection();
}
public void TreeViewClearAndSetAtTest()
{
RunOnUIThread.Execute(() =>
{
var treeView = new TreeView();
Content = treeView;
Content.UpdateLayout();
var listControl = FindVisualChildByName(treeView, "ListControl") as TreeViewList;
// Verify TreeViewNode::SetAt
TreeViewNode setAtChildCheckNode = new TreeViewNode()
{
Content = "Set At Child"
};
TreeViewNode setAtRootCheckNode = new TreeViewNode()
{
Content = "Set At Root"
};
TreeViewNode child1 = new TreeViewNode()
{
Content = "Child 1"
};
child1.Children.Add(new TreeViewNode()
{
Content = "Child 1:1"
});
TreeViewNode child2 = new TreeViewNode()
{
Content = "Child 2"
};
child2.Children.Add(new TreeViewNode()
{
Content = "Child 2:1"
});
child2.Children.Add(new TreeViewNode()
{
Content = "Child 2:2"
});
treeView.RootNodes.Add(child1);
child1.IsExpanded = true;
treeView.RootNodes.Add(child2);
Verify.AreEqual(listControl.Items.Count, 3);
// SetAt node under child node which is not expanded
child2.Children[1] = setAtChildCheckNode;
Verify.AreEqual(listControl.Items.Count, 3);
// SetAt node under root node and child2 is expanded
treeView.RootNodes[0] = setAtRootCheckNode;
child2.IsExpanded = true;
Verify.AreEqual(listControl.Items.Count, 4);
// Verify RootNode.Clear
treeView.RootNodes.Clear();
Verify.AreEqual(listControl.Items.Count, 0);
// test clear without any child node
treeView.RootNodes.Clear();
Verify.AreEqual(listControl.Items.Count, 0);
});
}
private void DragItemsStartingForApiTest(TreeView sender, TreeViewDragItemsStartingEventArgs args)
{
Results.Text = "DragItemsStarting:" + GetDraggedItemsNames(args.Items);
}
public void TreeViewSelectionChangedSingleMode()
{
RunOnUIThread.Execute(() =>
{
// input data:
// - 1
// - 2
// - 3
TreeViewSelectionChangedEventArgs selectionChangedEventArgs = null;
var treeView = new TreeView {
SelectionMode = TreeViewSelectionMode.Single
};
treeView.SelectionChanged += (s, e1) => selectionChangedEventArgs = e1;
var collection = new ObservableCollection <int> {
1, 2, 3
};
treeView.ItemsSource = collection;
Content = treeView;
Content.UpdateLayout();
var tvi1 = (TreeViewItem)treeView.ContainerFromItem(1);
var tvi2 = (TreeViewItem)treeView.ContainerFromItem(2);
tvi1.IsSelected = true;
Verify.IsNotNull(selectionChangedEventArgs);
Verify.AreEqual(1, selectionChangedEventArgs.AddedItems.Count);
Verify.IsTrue(selectionChangedEventArgs.AddedItems.Contains(1));
Verify.AreEqual(0, selectionChangedEventArgs.RemovedItems.Count);
selectionChangedEventArgs = null;
tvi2.IsSelected = true;
Verify.IsNotNull(selectionChangedEventArgs);
Verify.AreEqual(1, selectionChangedEventArgs.AddedItems.Count);
Verify.IsTrue(selectionChangedEventArgs.AddedItems.Contains(2));
Verify.AreEqual(1, selectionChangedEventArgs.RemovedItems.Count);
Verify.IsTrue(selectionChangedEventArgs.RemovedItems.Contains(1));
selectionChangedEventArgs = null;
tvi2.IsSelected = false;
Verify.IsNotNull(selectionChangedEventArgs);
Verify.AreEqual(0, selectionChangedEventArgs.AddedItems.Count);
Verify.AreEqual(1, selectionChangedEventArgs.RemovedItems.Count);
Verify.IsTrue(selectionChangedEventArgs.RemovedItems.Contains(2));
selectionChangedEventArgs = null;
tvi1.IsSelected = true;
Verify.IsNotNull(selectionChangedEventArgs);
Verify.AreEqual(1, selectionChangedEventArgs.AddedItems.Count);
Verify.IsTrue(selectionChangedEventArgs.AddedItems.Contains(1));
Verify.AreEqual(0, selectionChangedEventArgs.RemovedItems.Count);
selectionChangedEventArgs = null;
treeView.ItemsSource = null;
Verify.IsNotNull(selectionChangedEventArgs);
Verify.AreEqual(0, selectionChangedEventArgs.AddedItems.Count);
Verify.AreEqual(1, selectionChangedEventArgs.RemovedItems.Count);
Verify.IsTrue(selectionChangedEventArgs.RemovedItems.Contains(1));
});
}
public void TreeViewSelectionChangedMultipleMode()
{
RunOnUIThread.Execute(() =>
{
// input data:
// - 1
// - 11
// - 12
// - 13
// - 2
// - 21
// - 3
TreeViewSelectionChangedEventArgs selectionChangedEventArgs = null;
var treeView = new TreeView {
SelectionMode = TreeViewSelectionMode.Multiple
};
treeView.SelectionChanged += (s, e) => selectionChangedEventArgs = e;
var node1 = new TreeViewNode {
Content = "1", IsExpanded = true
};
var node11 = new TreeViewNode {
Content = "11"
};
var node12 = new TreeViewNode {
Content = "12"
};
var node13 = new TreeViewNode {
Content = "13"
};
node1.Children.Add(node11);
node1.Children.Add(node12);
node1.Children.Add(node13);
var node2 = new TreeViewNode {
Content = "2", IsExpanded = true
};
var node21 = new TreeViewNode {
Content = "21"
};
node2.Children.Add(node21);
var node3 = new TreeViewNode {
Content = "3"
};
treeView.RootNodes.Add(node1);
treeView.RootNodes.Add(node2);
treeView.RootNodes.Add(node3);
Content = treeView;
Content.UpdateLayout();
var tvi1 = (TreeViewItem)treeView.ContainerFromItem(node1);
var tvi11 = (TreeViewItem)treeView.ContainerFromItem(node11);
var tvi12 = (TreeViewItem)treeView.ContainerFromItem(node12);
var tvi13 = (TreeViewItem)treeView.ContainerFromItem(node13);
var tvi2 = (TreeViewItem)treeView.ContainerFromItem(node2);
var tvi21 = (TreeViewItem)treeView.ContainerFromItem(node21);
var tvi3 = (TreeViewItem)treeView.ContainerFromItem(node3);
// - 1 selected
// - 11 selected
// - 12 selected
// - 13 selected
// - 2
// - 21
// - 3
tvi1.IsSelected = true;
Verify.IsNotNull(selectionChangedEventArgs);
Verify.AreEqual(4, selectionChangedEventArgs.AddedItems.Count);
Verify.IsTrue(selectionChangedEventArgs.AddedItems.Contains(node1));
Verify.IsTrue(selectionChangedEventArgs.AddedItems.Contains(node11));
Verify.IsTrue(selectionChangedEventArgs.AddedItems.Contains(node12));
Verify.IsTrue(selectionChangedEventArgs.AddedItems.Contains(node13));
Verify.AreEqual(0, selectionChangedEventArgs.RemovedItems.Count);
selectionChangedEventArgs = null;
// - 1 selected
// - 11
// - 12 selected
// - 13 selected
// - 2
// - 21
// - 3
tvi11.IsSelected = true;
tvi11.IsSelected = false;
Verify.IsNotNull(selectionChangedEventArgs);
Verify.AreEqual(0, selectionChangedEventArgs.AddedItems.Count);
Verify.AreEqual(1, selectionChangedEventArgs.RemovedItems.Count);
Verify.IsTrue(selectionChangedEventArgs.RemovedItems.Contains(node11));
selectionChangedEventArgs = null;
// - 1 selected
// - 11 selected
// - 12 selected
// - 13 selected
// - 2 selected
// - 21 selected
// - 3 selected
treeView.SelectAll();
Verify.IsNotNull(selectionChangedEventArgs);
var items = selectionChangedEventArgs.AddedItems.ToList();
Verify.AreEqual(7, selectionChangedEventArgs.AddedItems.Count);
Verify.IsTrue(selectionChangedEventArgs.AddedItems.Contains(node1));
Verify.IsTrue(selectionChangedEventArgs.AddedItems.Contains(node11));
Verify.IsTrue(selectionChangedEventArgs.AddedItems.Contains(node12));
Verify.IsTrue(selectionChangedEventArgs.AddedItems.Contains(node13));
Verify.IsTrue(selectionChangedEventArgs.AddedItems.Contains(node2));
Verify.IsTrue(selectionChangedEventArgs.AddedItems.Contains(node21));
Verify.IsTrue(selectionChangedEventArgs.AddedItems.Contains(node3));
Verify.AreEqual(0, selectionChangedEventArgs.RemovedItems.Count);
});
}
public RxTreeViewEvents(TreeView data) : base(data)
{
_data = data;
}
