private static ObservableCollection <TreeViewNode> ProcessXamlItemGroups(XamlItemGroup xamlItemGroups)
{
var rootNodes = new ObservableCollection <TreeViewNode>();
foreach (var xamlItemGroup in xamlItemGroups.Children.OrderBy(xig => xig.Name))
{
var label = new Label
{
VerticalOptions = LayoutOptions.Center,
TextColor = Color.Black
};
label.SetBinding(Label.TextProperty, "Name");
var groupTreeViewNode = TreeViewHelper.CreateTreeViewNode(xamlItemGroup, label, false);
rootNodes.Add(groupTreeViewNode);
groupTreeViewNode.Children = ProcessXamlItemGroups(xamlItemGroup);
foreach (var xamlItem in xamlItemGroup.XamlItems)
{
TreeViewHelper.CreateXamlItem(groupTreeViewNode.Children, xamlItem);
}
}
return(rootNodes);
}
public XamlItemGroup GroupData(IList <AccountingModel> accountingOptions)
{
var accountings = accountingOptions.OrderBy(x => x.ParentId);
var accountingGroup = new XamlItemGroup();
foreach (var dept in accountings)
{
var itemGroup = new XamlItemGroup
{
Name = dept.Name,
GroupId = dept.Number
};
if (dept.ParentId <= 0)
{
accountingGroup.Children.Add(itemGroup);
}
else
{
XamlItemGroup parentGroup = null;
foreach (var group in accountingGroup.Children)
{
parentGroup = FindParent(group, dept);
if (parentGroup != null)
{
if (parentGroup.Children.Count == 0)
{
var item = new XamlItem
{
ItemId = dept.Number,
ParentId = dept.ParentId,
Key = dept.Name,
SelectedCommand = ReactiveCommand.Create <XamlItem>(r =>
{
if (r == null)
{
return;
}
//r.Selected = r.Selected;
return;
})
};
parentGroup.XamlItems.Add(item);
}
else
{
parentGroup.Children.Add(itemGroup);
break;
}
}
}
}
}
return(accountingGroup);
}
public static void ProcessXamlItems(TreeViewNode node, XamlItemGroup xamlItemGroup)
{
var children = new ObservableCollection <TreeViewNode>();
foreach (var xamlItem in xamlItemGroup.XamlItems.OrderBy(xi => xi.Key))
{
CreateXamlItem(children, xamlItem);
}
node.Children = children;
}
public static XamlItemGroup GroupData()
{
var company = GetCompany();
var departments = GetDepartments().OrderBy(x => x.ParentDepartmentId);
var employees = GetEmployees();
var companyGroup = new XamlItemGroup();
companyGroup.Name = company.CompanyName;
foreach (var dept in departments)
{
var itemGroup = new XamlItemGroup();
itemGroup.Name = dept.DepartmentName;
itemGroup.GroupId = dept.DepartmentId;
// Employees first
var employeesDepartment = employees.Where(x => x.DepartmentId == dept.DepartmentId);
foreach (var emp in employeesDepartment)
{
var item = new XamlItem();
item.ItemId = emp.EmployeeId;
item.Key = emp.EmployeeName;
itemGroup.XamlItems.Add(item);
}
// Departments now
if (dept.ParentDepartmentId == -1)
{
companyGroup.Children.Add(itemGroup);
}
else
{
XamlItemGroup parentGroup = null;
foreach (var group in companyGroup.Children)
{
parentGroup = FindParentDepartment(group, dept);
if (parentGroup != null)
{
parentGroup.Children.Add(itemGroup);
break;
}
}
}
}
return(companyGroup);
}
/// <summary>
/// 递归结构
/// </summary>
/// <param name="xamlItemGroups"></param>
/// <returns></returns>
private static ObservableCollection <TreeViewNode> ProcessXamlItemGroups(XamlItemGroup xamlItemGroups)
{
var rootNodes = new ObservableCollection <TreeViewNode>();
foreach (var xamlItemGroup in xamlItemGroups.Children.OrderBy(xig => xig.Name))
{
var label = new Label
{
VerticalOptions = LayoutOptions.Center,
TextColor = Color.Black,
Text = xamlItemGroup.Name
};
label.SetBinding(Label.TextProperty, "Name");
label.GestureRecognizers.Add(new TapGestureRecognizer
{
Command = new Command(() =>
{
//
})
});
var checkBox = new CheckBox()
{
Margin = new Thickness(10, 5, 10, 0),
HorizontalOptions = LayoutOptions.EndAndExpand,
VerticalOptions = LayoutOptions.CenterAndExpand,
IsVisible = false
};
checkBox.SetBinding(CheckBox.IsCheckedProperty, "Selected", mode: BindingMode.TwoWay);
var groupTreeViewNode = CreateTreeViewNode(xamlItemGroup, label, checkBox, false);
rootNodes.Add(groupTreeViewNode);
//添加Children
groupTreeViewNode.Children = ProcessXamlItemGroups(xamlItemGroup);
foreach (var xamlItem in xamlItemGroup.XamlItems)
{
CreateXamlItem(groupTreeViewNode.Children, xamlItem);
}
}
return(rootNodes);
}
public XamlItemGroup FindParent(XamlItemGroup group, AccountingModel account)
{
if (group.GroupId == account.ParentId)
{
return(group);
}
if (group.Children != null)
{
foreach (var currentGroup in group.Children)
{
var search = FindParent(currentGroup, account);
if (search != null)
{
return(search);
}
}
}
return(null);
}
private static XamlItemGroup FindParentDepartment(XamlItemGroup group, Department department)
{
if (group.GroupId == department.ParentDepartmentId)
{
return(group);
}
if (group.Children != null)
{
foreach (var currentGroup in group.Children)
{
var search = FindParentDepartment(currentGroup, department);
if (search != null)
{
return(search);
}
}
}
return(null);
}
private static ObservableCollection <TreeViewNode> ProcessXamlItemGroups(XamlItemGroup xamlItemGroups, Boolean isRoot)
{
var rootNodes = new ObservableCollection <TreeViewNode>();
Stopwatch sw1 = new Stopwatch();
Stopwatch sw2 = new Stopwatch();
Stopwatch sw3 = new Stopwatch();
Stopwatch sw4 = new Stopwatch();
Stopwatch swTotal = new Stopwatch();
swTotal.Start();
foreach (var xamlItemGroup in xamlItemGroups.Children.OrderBy(xig => xig.Name))
{
sw1.Start();
var label = new Label
{
VerticalOptions = LayoutOptions.Center,
TextColor = Color.Black
};
label.SetBinding(Label.TextProperty, "Name");
sw1.Stop();
//创建当前分类节点
sw2.Start();
var groupTreeViewNode = CreateTreeViewNode(xamlItemGroup, label, false);
rootNodes.Add(groupTreeViewNode);
sw2.Stop();
//创建当前分类节点下的子分类节点,递归调用
sw3.Start();
groupTreeViewNode.Children = ProcessXamlItemGroups(xamlItemGroup, false);
sw3.Stop();
//创建当前分类下的普通节点(不可展开的，非分类节点)， 循环调用
sw4.Start();
foreach (var xamlItem in xamlItemGroup.XamlItems)
{
CreateXamlItem(groupTreeViewNode.Children, xamlItem);
}
sw4.Stop();
}
swTotal.Stop();
if (isRoot)
{
Console.WriteLine("sw1 cost: {0} ms", sw1.ElapsedMilliseconds);
Console.WriteLine("sw2 cost: {0} ms", sw2.ElapsedMilliseconds);
Console.WriteLine("sw3 cost: {0} ms", sw3.ElapsedMilliseconds);
Console.WriteLine("sw4 cost: {0} ms", sw4.ElapsedMilliseconds);
Console.WriteLine("total cost: {0} ms", swTotal.ElapsedMilliseconds);
}
return(rootNodes);
}
