前台
后台
在wpf中实现treeview的功能，可能看到很多分享的都是简单的绑定，仅此记录自己完成的功能。
前台
<TreeView x:Name="chapterTree" Grid.Column="0" SelectedItemChanged="chapterTree_SelectedItemChanged" PreviewMouseRightButtonDown="chapterTree_PreviewMouseRightButtonDown" FontSize="14" ItemsSource="{Binding Path=Nodes}" >
<TreeView.ContextMenu>
<ContextMenu>
<MenuItem Header="保存" Name="btnAlterData" Click="btnAlterData_Click" />
<MenuItem Header="新增兄弟节点" Name="btnSaveData" Click="btnSaveData_Click"/>
<MenuItem Header="新增子节点" Name="btnSaveSonData" Click="btnSaveSonData_Click"/>
<MenuItem Header="删除" Name="btnDdeleteData" Click="btnDdeleteData_Click"/>
<MenuItem Header="上移一位" Name="btnUp" Click="btnUp_Click"/>
<MenuItem Header="下移一位" Name="btnDown" Click="btnDown_Click"/>
</ContextMenu>
</TreeView.ContextMenu>
<TreeView.ItemTemplate>
<HierarchicalDataTemplate DataType="{x:Type c:OrderModel}" ItemsSource="{Binding Path=ChildNodes}">
<Label Content="{Binding Path=OrderName}"/>
</HierarchicalDataTemplate>
</TreeView.ItemTemplate>
</TreeView>
后台
CommandModel cm;
public Command()
{
InitializeComponent();
cm = new CommandModel();
chapterTree.ItemsSource = cm.Nodes;
}
新建了CommandModel页面用来绑定数据（从数据库提取的数据，转换成了list）
public event PropertyChangedEventHandler PropertyChanged;
private ObservableCollection<OrderModel> nodes = new ObservableCollection<OrderModel>();
public ObservableCollection<OrderModel> Nodes
{
get { return nodes; }
set
{
nodes = value;
if (PropertyChanged != null)
PropertyChanged(this, new PropertyChangedEventArgs("Nodes"));
}
}
public CommandModel()
{
Initiate();
}
private void Initiate()
{
using (SQLiteConnection con = new SQLiteConnection(MainWindow.sb.ToString()))
{
DataTable table = new DataTable("MyTable");
var reader = con.ExecuteReader("SELECT * FROM OrderData Order by OrderID");
table.Load(reader);
ObservableCollection<OrderModel> _nodes = new ObservableCollection<OrderModel>();
_nodes = ConvertToList(table);
//ShowTreeView();
Nodes = getChildNodes(0, _nodes);
}
}
private ObservableCollection<OrderModel> getChildNodes(long parentID, ObservableCollection<OrderModel> nodes)
{
List<OrderModel> a = new List<OrderModel>(nodes.Where(x => x.ParentID == parentID).ToList());
ObservableCollection<OrderModel> mainNodes =new ObservableCollection<OrderModel>(a);
List<OrderModel> b = new List<OrderModel>(nodes.Where(x => x.ParentID != parentID).ToList());
ObservableCollection<OrderModel> otherNodes =new ObservableCollection<OrderModel>(b);
foreach (OrderModel node in mainNodes)
node.ChildNodes = getChildNodes(node.ID, otherNodes);
return mainNodes;
}
#region datatable转list
/// <summary>
/// datatable转list
/// </summary>
/// <param name="dt"></param>
/// <returns></returns>
public static ObservableCollection<OrderModel> ConvertToList(DataTable dt)
{
// 定义集合
ObservableCollection<OrderModel> ts = new ObservableCollection<OrderModel>();
// 获得此模型的类型
Type type = typeof(OrderModel);
//定义一个临时变量
string tempName = string.Empty;
//遍历DataTable中所有的数据行
foreach (DataRow dr in dt.Rows)
{
OrderModel t = new OrderModel();
// 获得此模型的公共属性
PropertyInfo[] propertys = t.GetType().GetProperties();
//遍历该对象的所有属性
foreach (PropertyInfo pi in propertys)
{
tempName = pi.Name;//将属性名称赋值给临时变量
//检查DataTable是否包含此列（列名==对象的属性名）
if (dt.Columns.Contains(tempName))
{
// 判断此属性是否有Setter
if (!pi.CanWrite) continue;//该属性不可写，直接跳出
//取值
object value = dr[tempName];
//如果非空，则赋给对象的属性
if (value != DBNull.Value)
pi.SetValue(t, value, null);
}
}
//对象添加到泛型集合中
ts.Add(t);
}
return ts;
}
#endregion
model页面的列中需要添加
public ObservableCollection<OrderModel> ChildNodes { get; set; }
public OrderModel()
{
ChildNodes = new ObservableCollection<OrderModel>();
}
以上就是c# WPF中的TreeView使用详解的详细内容，更多关于c# WPF中的TreeView的资料请关注软件开发网其它相关文章！