public int GetItemsCount(TreeViewList listControl)
{
#if !WINDOWS_UWP
return(listControl.GetItems().Count());
#else
return(listControl.Items.Count);
#endif
}
public void VerifyClearingNodeWithNoChildren()
{
TreeView treeView = null;
TreeViewList listControl = null;
TreeViewNode treeViewNode1 = null;
var loadedWaiter = new ManualResetEvent(false);
RunOnUIThread.Execute(() =>
{
treeViewNode1 = new TreeViewNode();
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);
var children = (treeViewNode1.Children as IObservableVector <TreeViewNode>);
children.VectorChanged += (vector, args) =>
{
if (((IVectorChangedEventArgs)args).CollectionChange == CollectionChange.Reset)
{
// should not reset if there are not children items
throw new InvalidOperationException();
}
};
Verify.AreEqual(listControl.Items.Count, 1);
// this should no-op and not crash
treeViewNode1.Children.Clear();
// Put things back
MUXControlsTestApp.App.TestContentRoot = null;
});
}
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;
});
}
/// <summary>
/// Initializes a new instance of the TreeViewListAutomationPeer class.
/// </summary>
/// <param name="owner">The TreeViewList control instance to create the peer for.</param>
public TreeViewListAutomationPeer(TreeViewList owner) : base(owner)
{
}
