如何使用winforms在多列模式下将项目添加到TreeViewAdv中
我正在玩这个控件,名为TreeViewAdv。我已经添加了控件并添加了一些列,试图了解它是如何工作的。但直到现在,当我添加项目到控件时,我所得到的都是空节点。随控件提供的示例一点都不清楚,当我试图弄清楚数据如何添加到它时,它只是让我头疼。无论如何,这是我迄今为止所做的,我希望有人能指导我走向正确的方向。如何使用winforms在多列模式下将项目添加到TreeViewAdv中
TreeModel _model = new TreeModel();
treeViewAdv1.Model = _model;
treeViewAdv1.BeginUpdate();
for (int i = 0; i < 20; i++)
{
Node parentNode = new Node("root" + i);
_model.Nodes.Add(parentNode);
for (int n = 0; n < 2; n++)
{
Node childNode = new MyNode("child" + n);
parentNode.Nodes.Add(childNode);
}
}
treeViewAdv1.EndUpdate();
无论如何,所有我得到的是空的节点,我真的无法弄清楚如何将数据添加到其他列...任何帮助,将不胜感激......
您需要首先实例化您的列,然后将它们附加到TreeView。毕竟在同一个单元索引的所有列中添加新的单元格。 希望能帮到
为防万一你还在为这个问题而努力,或者其他任何人都遇到同样的问题:空节点的解决方案是将一个视图组件分配给树。
TreeViewAdv使用MVC,它需要你分配一个视图,尽管这在示例项目中并不明显。 TreeViewAdv源代码中的NodeControls文件夹下的NodeTextBox类是您可以使用的查看器之一。你需要像这样添加到您的形式,并将其连接到树控件通过其DataPropertyName属性:
this._tBox.DataPropertyName = "Text";
其中_tBox是NodeTextBox实例。毋庸置疑,我已经花了数小时弄清楚了这一点。希望它可以帮助别人。
似乎使用这个梦幻般的控制进入的价格是几个小时,头几个小时,抓挠挫折。
这就是你需要做什么:
private void Form1_Load(object sender, EventArgs e)
{
TreeModel _model = new TreeModel();
treeViewAdv1.Model = _model;
treeViewAdv1.BeginUpdate();
for (int i = 0; i < 20; i++)
{
Node parentNode = new Node("root" + i);
_model.Nodes.Add(parentNode);
for (int n = 0; n < 2; n++)
{
Node childNode = new Node("child" + n);
parentNode.Nodes.Add(childNode);
}
}
NodeTextBox ntb = new NodeTextBox();
ntb.DataPropertyName = "Text";
this.treeViewAdv1.NodeControls.Add(ntb);
treeViewAdv1.EndUpdate();
}
显然这个问题是旧的,但我无法找到这个问题的任何答案,所以我想我会尽量节约一些未来的无奈。
要获得多列显示,首先将UseColumns属性更改为true。
然后将所需的柱添加到Columns集合属性中。
接下来使用NodeControls集合属性创建将要显示的数据类型列表,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中的哪一列应显示数据) 最后,创建一个从Node类继承的新类,并添加一个。使用相同的名称,因为每个NodeControl公共属性,则添加节点时,使用新的类正确的值
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();
}
}
然后加入 的TreeModel _model =新的TreeModel()时;
_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;
}
你能举个例子吗?我真的不知道如何做到这一点 – SolidSnake 2012-04-09 12:52:53