显然这个问题很老,但我无法找到这个问题的任何答案,所以我想我会尝试为某人节省一些未来的挫败感。
要显示多列,首先将 UseColumns 属性更改为 true。
然后将所需的列添加到 Columns 集合属性。
接下来使用 NodeControls 集合属性创建将显示的数据类型的列表,以及它们应该如何格式化(复选框、文本框等)。确保设置 1)DataPropertyName(稍后会用到),2)ParentColumn(显示 treeView 中的哪一列应该显示数据。最后,创建一个继承自 Node 类的新类,并添加一个 public与每个 NodeControl 同名的属性。然后在添加节点时,使用具有正确值的新类。
private class ColumnNode: Node
{
public string NodeControl1=""; // This sould make the DataPropertyName specified in the Node Collection.
public string NodeControl2 = "";
public string NodeControl3 = "";
public ColumnNode(string nodeControl1, string nodeControl2, int nodeControl3)
{
NodeControl1 = nodeControl1;
NodeControl2 = nodeControl2;
NodeControl3 = nodeControl3.ToString();
}
}
然后在添加 TreeModel _model = new TreeModel();
_treeViewAdv.Model = _model;
_treeViewAdv.BeginUpdate();
for (int i = 0; i < 20; i++)
{
Node parentNode = new ColumnNode("root" + i, "",0);
_model.Nodes.Add(parentNode);
for (int n = 0; n < 2; n++)
{
Node childNode = new ColumnNode("child" + n,"Further Information",1);
parentNode.Nodes.Add(childNode);
}
}
_treeViewAdv.EndUpdate();
作为参考,本例中 treeViewAdv 的设计器代码如下所示:
private Aga.Controls.Tree.TreeViewAdv _treeViewAdv;
private Aga.Controls.Tree.TreeColumn Column1;
private Aga.Controls.Tree.TreeColumn Column2;
private Aga.Controls.Tree.TreeColumn Column3;
private Aga.Controls.Tree.NodeControls.NodeTextBox NodeControl1;
private Aga.Controls.Tree.NodeControls.NodeTextBox NodeControl2;
private Aga.Controls.Tree.NodeControls.NodeTextBox NodeControl3;
private InitializeComponent()
{
// Left out all other initialization, since this was long enough already.
this.treeViewAdvPrint = new Aga.Controls.Tree.TreeViewAdv();
this.Column1 = new Aga.Controls.Tree.TreeColumn();
this.Column2 = new Aga.Controls.Tree.TreeColumn();
this.Column3 = new Aga.Controls.Tree.TreeColumn();
this.NodeControl1 = new Aga.Controls.Tree.NodeControls.NodeTextBox();
this.NodeControl2 = new Aga.Controls.Tree.NodeControls.NodeTextBox();
this.NodeControl3= new Aga.Controls.Tree.NodeControls.NodeTextBox();
//
// _treeViewAdv
//
this._treeViewAdv.BackColor = System.Drawing.SystemColors.Window;
this._treeViewAdv.Columns.Add(this.Column1);
this._treeViewAdv.Columns.Add(this.Column2);
this._treeViewAdv.Columns.Add(this.Column3);
this._treeViewAdv.DefaultToolTipProvider = null;
this._treeViewAdv.DragDropMarkColor = System.Drawing.Color.Black;
this._treeViewAdv.GridLineStyle = ((Aga.Controls.Tree.GridLineStyle)((Aga.Controls.Tree.GridLineStyle.Horizontal | Aga.Controls.Tree.GridLineStyle.Vertical)));
this._treeViewAdv.LineColor = System.Drawing.SystemColors.ControlDark;
this._treeViewAdv.Location = new System.Drawing.Point(12, 12);
this._treeViewAdv.Model = null;
this._treeViewAdv.Name = "_treeViewAdv";
this._treeViewAdv.NodeControls.Add(NodeControl1);
this._treeViewAdv.NodeControls.Add(NodeControl2);
this._treeViewAdv.NodeControls.Add(NodeControl3);
this._treeViewAdv.SelectedNode = null;
this._treeViewAdv.Size = new System.Drawing.Size(443, 356);
this._treeViewAdv.TabIndex = 6;
this._treeViewAdv.Text = "_treeViewAdv";
this._treeViewAdv.UseColumns = true;
//
// Column1
//
this.Column1.Header = "Column 1";
this.Column1.SortOrder = System.Windows.Forms.SortOrder.None;
this.Column1.TooltipText = null;
this.Column1.Width = 290;
//
// Column3
//
this.Column3.Header = "Column 3";
this.Column3.SortOrder = System.Windows.Forms.SortOrder.None;
this.Column3.TextAlign = System.Windows.Forms.HorizontalAlignment.Center;
this.Column3.TooltipText = null;
//
// Column2
//
this.Column2.Header = "Column 2";
this.Column2.SortOrder = System.Windows.Forms.SortOrder.None;
this.Column2.TextAlign = System.Windows.Forms.HorizontalAlignment.Center;
this.Column2.TooltipText = null;
this.Column2.Width = 91;
//
// NodeControl1
//
this.NodeControl1.DataPropertyName = "NodeControl1";
this.NodeControl1.IncrementalSearchEnabled = true;
this.NodeControl1.LeftMargin = 3;
this.NodeControl1.ParentColumn = this.Column1;
//
// NodeControl2
//
this.NodeControl2.DataPropertyName = "NodeControl2";
this.NodeControl2.IncrementalSearchEnabled = true;
this.NodeControl2.LeftMargin = 3;
this.NodeControl2.ParentColumn = this.Column2;
//
// NodeControl3
//
this.NodeControl3.DataPropertyName = "NodeControl3";
this.NodeControl3.IncrementalSearchEnabled = true;
this.NodeControl3.LeftMargin = 3;
this.NodeControl3.ParentColumn = this.Column3;
}