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我正在使用 ObjectListView.Official.2.9.1.nupkg
http://objectlistview.sourceforge.net/cs/index.html

如何将第三级孙子添加到 TreeListView（在“CHILD_1_1”内并使其可扩展）？

public partial class DocumentLink : Form
{
    // embedded class
    class Node
    {
        public string Name { get; private set; }
        public string Column1 { get; private set; }
        public string Column2 { get; private set; }
        public string Column3 { get; private set; }
        public List<Node> Children { get; private set; }
        public Node(string name, string col1, string col2, string col3)
        {
            this.Name = name;
            this.Column1 = col1;
            this.Column2 = col2;
            this.Column3 = col3;
            this.Children = new List<Node>();
        }
    }

    // private fields
    private List<Node> data;
    private BrightIdeasSoftware.TreeListView treeListView;

    public DocumentLink()
    {
        InitializeComponent();
        AddTree();
        InitializeData();
        FillTree();
    }

    // private methods
    private void FillTree()
    {
        // set the delegate that the tree uses to know if a node is expandable
        this.treeListView.CanExpandGetter = x => (x as Node).Children.Count > 0;
        // set the delegate that the tree uses to know the children of a node
        this.treeListView.ChildrenGetter = x => (x as Node).Children;

        // create the tree columns and set the delegates to print the desired object proerty
        var nameCol = new BrightIdeasSoftware.OLVColumn("Name", "Name");
        nameCol.AspectGetter = x => (x as Node).Name;

        var col1 = new BrightIdeasSoftware.OLVColumn("Column1", "Column1");
        col1.AspectGetter = x => (x as Node).Column1;

        var col2 = new BrightIdeasSoftware.OLVColumn("Column2", "Column2");
        col2.AspectGetter = x => (x as Node).Column2;

        var col3 = new BrightIdeasSoftware.OLVColumn("Column3", "Column3");
        col3.AspectGetter = x => (x as Node).Column3;

        // add the columns to the tree
        this.treeListView.Columns.Add(nameCol);
        this.treeListView.Columns.Add(col1);
        this.treeListView.Columns.Add(col2);
        this.treeListView.Columns.Add(col3);

        // set the tree roots
        this.treeListView.Roots = data;
    }

    private void InitializeData()
    {
        // create fake nodes
        var parent1 = new Node("PARENT1", "-", "-", "-");
        parent1.Children.Add(new Node("CHILD_1_1", "A", "X", "1"));
        parent1.Children.Add(new Node("CHILD_1_2", "A", "Y", "2"));
        parent1.Children.Add(new Node("CHILD_1_3", "A", "Z", "3"));

        var parent2 = new Node("PARENT2", "-", "-", "-");
        parent2.Children.Add(new Node("CHILD_2_1", "B", "W", "7"));
        parent2.Children.Add(new Node("CHILD_2_2", "B", "Z", "8"));
        parent2.Children.Add(new Node("CHILD_2_3", "B", "J", "9"));

        var parent3 = new Node("PARENT3", "-", "-", "-");
        parent3.Children.Add(new Node("CHILD_3_1", "C", "R", "10"));
        parent3.Children.Add(new Node("CHILD_3_2", "C", "T", "12"));
        parent3.Children.Add(new Node("CHILD_3_3", "C", "H", "14"));

        data = new List<Node> { parent1, parent2, parent3 };
    }

    private void AddTree()
    {
        treeListView = new BrightIdeasSoftware.TreeListView();
        treeListView.Dock = DockStyle.Fill;
        this.Controls.Add(treeListView);
    }
}

现在我只能添加第二级，如图所示。 其他使用这个 Nuget 包，我可以只使用 System.Windows.Forms.ListView 吗？ *带有列的 TreeView 列表。
在此处输入图像描述


4

1 回答 1

1

您应该能够以将第一个孩子添加到第一个父母的相同方式执行此操作。
创建节点的实例，然后将其添加到父节点，并向其添加其他节点...应该是这样的：

private void InitializeData()
{
    // create fake nodes
    var parent1 = new Node("PARENT1", "-", "-", "-");
    var child1 = new Node("CHILD_1_1", "A", "X", "1");
    parent1.Children.Add(child1);
    var childChild1 = new Node("CHILD_1_1_CHILD", "T", "R", "45");
    child1.Children.Add(childChild1);
    parent1.Children.Add(new Node("CHILD_1_2", "A", "Y", "2"));
    parent1.Children.Add(new Node("CHILD_1_3", "A", "Z", "3"));

    var parent2 = new Node("PARENT2", "-", "-", "-");
    parent2.Children.Add(new Node("CHILD_2_1", "B", "W", "7"));
    parent2.Children.Add(new Node("CHILD_2_2", "B", "Z", "8"));
    parent2.Children.Add(new Node("CHILD_2_3", "B", "J", "9"));

    var parent3 = new Node("PARENT3", "-", "-", "-");
    parent3.Children.Add(new Node("CHILD_3_1", "C", "R", "10"));
    parent3.Children.Add(new Node("CHILD_3_2", "C", "T", "12"));
    parent3.Children.Add(new Node("CHILD_3_3", "C", "H", "14"));

    data = new List<Node> { parent1, parent2, parent3 };
}
于 2022-03-03T09:36:27.910 回答