WPF下递归生成树形数据绑定到TreeView上
最终效果图：（用于学习类的效果 图片丑了点，看官莫怪）
新建窗体 然后在前端适当位置插入如下代码：
<TreeView x:Name="departmentTree" Height="500" Width="500">
<TreeView.ItemTemplate>
<HierarchicalDataTemplate ItemsSource="{Binding Nodes}">
<StackPanel>
<TextBlock VerticalAlignment="Center" FontSize="14" Text="{Binding deptName}" Margin="2,0,0,0"></TextBlock>
</StackPanel>
</HierarchicalDataTemplate>
</TreeView.ItemTemplate>
</TreeView>
后端代码：
public class DepartmentModel
{
public List<DepartmentModel> Nodes { get; set; }
public DepartmentModel()
{
this.Nodes = new List<DepartmentModel>();
this.ParentId = 0;//主节点的父id默认为0
}
public int id { get; set; }//id
public string deptName { get; set; }//部门名称
public int ParentId { get; set; }//父类id
}
public partial class TestWin : Window
{
public TestWin()
{
InitializeComponent();
this.departmentTree.ItemsSource = getTrees(0, getDepts());//数据绑定
}
/// <summary>
/// 获取部门列表--测试
/// </summary>
/// <returns></returns>
public List<DepartmentModel> getDepts() {
List<DepartmentModel> dplst = new List<DepartmentModel>(){
new DepartmentModel(){id=1,deptName="主部门1",ParentId=0},
new DepartmentModel(){id=2,deptName="主部门2",ParentId=0},
new DepartmentModel(){id=3,deptName="主部门1_1",ParentId=1},
new DepartmentModel(){id=4,deptName="主部门1_2",ParentId=1},
new DepartmentModel(){id=5,deptName="主部门1_3",ParentId=1},
new DepartmentModel(){id=6,deptName="主部门1_4",ParentId=1},
new DepartmentModel(){id=7,deptName="主部门1_5",ParentId=1},
new DepartmentModel(){id=8,deptName="主部门2_1",ParentId=2},
new DepartmentModel(){id=9,deptName="主部门2_2",ParentId=2},
new DepartmentModel(){id=10,deptName="主部门2_3",ParentId=2},
new DepartmentModel(){id=11,deptName="主部门2_4",ParentId=2},
new DepartmentModel(){id=12,deptName="主部门1_1_1",ParentId=3},
new DepartmentModel(){id=13,deptName="主部门1_1_2",ParentId=3},
new DepartmentModel(){id=14,deptName="主部门1_2_1",ParentId=4},
new DepartmentModel(){id=15,deptName="主部门1_1_1_1",ParentId=12}
};
return dplst;
}
/// <summary>
/// 递归生成树形数据
/// </summary>
/// <param name="delst"></param>
/// <returns></returns>
public List<DepartmentModel> getTrees(int parentid, List<DepartmentModel> nodes)
{
List<DepartmentModel> mainNodes = nodes.Where(x => x.ParentId == parentid).ToList<DepartmentModel>();
List<DepartmentModel> otherNodes = nodes.Where(x => x.ParentId != parentid).ToList<DepartmentModel>();
foreach (DepartmentModel dpt in mainNodes)
{
dpt.Nodes = getTrees(dpt.id,otherNodes);
}
return mainNodes;
}
}
上述主要代码为【递归生成树形数据】方法
最终效果图：（用于学习类的效果 图片丑了点，看官莫怪）
新建窗体 然后在前端适当位置插入如下代码：
<TreeView x:Name="departmentTree" Height="500" Width="500">
<TreeView.ItemTemplate>
<HierarchicalDataTemplate ItemsSource="{Binding Nodes}">
<StackPanel>
<TextBlock VerticalAlignment="Center" FontSize="14" Text="{Binding deptName}" Margin="2,0,0,0"></TextBlock>
</StackPanel>
</HierarchicalDataTemplate>
</TreeView.ItemTemplate>
</TreeView>
后端代码：
public class DepartmentModel
{
public List<DepartmentModel> Nodes { get; set; }
public DepartmentModel()
{
this.Nodes = new List<DepartmentModel>();
this.ParentId = 0;//主节点的父id默认为0
}
public int id { get; set; }//id
public string deptName { get; set; }//部门名称
public int ParentId { get; set; }//父类id
}
public partial class TestWin : Window
{
public TestWin()
{
InitializeComponent();
this.departmentTree.ItemsSource = getTrees(0, getDepts());//数据绑定
}
/// <summary>
/// 获取部门列表--测试
/// </summary>
/// <returns></returns>
public List<DepartmentModel> getDepts() {
List<DepartmentModel> dplst = new List<DepartmentModel>(){
new DepartmentModel(){id=1,deptName="主部门1",ParentId=0},
new DepartmentModel(){id=2,deptName="主部门2",ParentId=0},
new DepartmentModel(){id=3,deptName="主部门1_1",ParentId=1},
new DepartmentModel(){id=4,deptName="主部门1_2",ParentId=1},
new DepartmentModel(){id=5,deptName="主部门1_3",ParentId=1},
new DepartmentModel(){id=6,deptName="主部门1_4",ParentId=1},
new DepartmentModel(){id=7,deptName="主部门1_5",ParentId=1},
new DepartmentModel(){id=8,deptName="主部门2_1",ParentId=2},
new DepartmentModel(){id=9,deptName="主部门2_2",ParentId=2},
new DepartmentModel(){id=10,deptName="主部门2_3",ParentId=2},
new DepartmentModel(){id=11,deptName="主部门2_4",ParentId=2},
new DepartmentModel(){id=12,deptName="主部门1_1_1",ParentId=3},
new DepartmentModel(){id=13,deptName="主部门1_1_2",ParentId=3},
new DepartmentModel(){id=14,deptName="主部门1_2_1",ParentId=4},
new DepartmentModel(){id=15,deptName="主部门1_1_1_1",ParentId=12}
};
return dplst;
}
/// <summary>
/// 递归生成树形数据
/// </summary>
/// <param name="delst"></param>
/// <returns></returns>
public List<DepartmentModel> getTrees(int parentid, List<DepartmentModel> nodes)
{
List<DepartmentModel> mainNodes = nodes.Where(x => x.ParentId == parentid).ToList<DepartmentModel>();
List<DepartmentModel> otherNodes = nodes.Where(x => x.ParentId != parentid).ToList<DepartmentModel>();
foreach (DepartmentModel dpt in mainNodes)
{
dpt.Nodes = getTrees(dpt.id,otherNodes);
}
return mainNodes;
}
}
上述主要代码为【递归生成树形数据】方法