Hi there,
I have some difficulties to use editors in an ultra tree. I would like to create a tree just like the PropertyGrid, so I would like to have different data type in the cells (String, Integer, Boolean, Color, Font etc..)
I succedded with the string, the font, the combo but I have problems with the colorpicker (I have the color but it's not editable) and also with the CheckEditor (I can't check/uncheck)
Remark: If I set DataType=typeof(Color) for a colum it works well. But since I want to have different type in the cells I can't do that.
Thanks for your help.
Here is my sample code:
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using System;using System.Drawing;using System.Windows.Forms;using Infragistics.Win;using Infragistics.Win.UltraWinTree;using Infragistics.Win.UltraWinEditors;
namespace InfragisticEditors{ public partial class Form1 : Form { private UltraTreeNodeColumn _colName; private UltraTreeNodeColumn _colValue;
public Form1() { InitializeComponent();
InitTree(); }
private void InitTree() { // Clear nodes: this.ultraTree1.Nodes.Clear();
// set outlook view style: this.ultraTree1.ViewStyle = ViewStyle.OutlookExpress; this.ultraTree1.Indent = 10;
// Editable cells: this.ultraTree1.Override.CellClickAction = CellClickAction.EditCell; // Only allow one node to be selected at a time this.ultraTree1.Override.SelectionType = SelectType.Single;
// Use single-pixel borders of 'Control' color for the cells this.ultraTree1.ColumnSettings.BorderStyleCell = UIElementBorderStyle.Solid; this.ultraTree1.ColumnSettings.CellAppearance.BorderColor = SystemColors.Control;
// Hide the headers: this.ultraTree1.ColumnSettings.LabelPosition = NodeLayoutLabelPosition.None;
// Add colums: UltraTreeColumnSet rootColumnSet = this.ultraTree1.ColumnSettings.RootColumnSet; _colName = rootColumnSet.Columns.Add("Name"); _colName.DataType = typeof(string); _colName.LayoutInfo.PreferredCellSize = new Size(this.ultraTree1.Width / 2, 0);
_colValue = rootColumnSet.Columns.Add("Value"); _colValue.DataType = typeof(object); _colValue.LayoutInfo.PreferredCellSize = new Size(this.ultraTree1.Width / 2, 0); _colValue.AllowCellEdit = AllowCellEdit.Full; }
private void Form1_Load(object sender, EventArgs e) { // Add a text node: String str = "Hello world"; UltraTreeNode node1 = this.ultraTree1.Nodes.Add(null, ""); node1.SetCellValue(_colName, "String"); node1.SetCellValue(_colValue, str);
// Add a color: Color color = Color.FromArgb(255, 0, 0); UltraTreeNode node2 = this.ultraTree1.Nodes.Add(null, ""); node2.Cells[_colValue].Editor = new ColorPickerEditor(); node2.SetCellValue(_colName, "Color"); node2.SetCellValue(_colValue, color);
// Add a combo UltraComboEditor editorControl = new UltraComboEditor(); UltraTreeNode node3 = this.ultraTree1.Nodes.Add(null, ""); editorControl.Items.Add("True"); editorControl.Items.Add("False"); editorControl.DropDownStyle = DropDownStyle.DropDownList; node3.Cells[_colValue].EditorControl = editorControl; node3.SetCellValue(_colName, "Combobox"); node3.SetCellValue(_colValue, false);
// Add a checkbox: UltraTreeNode node4 = this.ultraTree1.Nodes.Add(null, ""); node4.Cells[_colValue].Editor = new CheckEditor(); node4.SetCellValue(_colName, "Checkbox"); node4.SetCellValue(_colValue, false);
// Add a collection UltraTreeNode node5 = this.ultraTree1.Nodes.Add(null, ""); EditorWithText textEditor = new EditorWithText(); node5.Cells[_colValue].Editor = textEditor; EditorButton editorButton = new EditorButton("ellipsis"); editorButton.Text = "..."; //editorButton.Click += new Infragistics.Win.UltraWinEditors.EditorButtonEventHandler(editorButton_Click); textEditor.ButtonsRight.Add(editorButton); node5.Cells[_colValue].AllowEdit = AllowCellEdit.ReadOnly; node5.SetCellValue(_colName, "Button"); node5.SetCellValue(_colValue, "(Collection)");
// Add a font: Font font = new Font("Arial", 14.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0))); UltraTreeNode node6 = this.ultraTree1.Nodes.Add(null, ""); node6.Cells[_colValue].Editor = new FontNameEditor(); node6.SetCellValue(_colName, "Font"); node6.SetCellValue(_colValue, font); } }}
I believe the problem is that the ColorPickerEditor and CheckEditor do not support editing of type object. If you use a DataFilter (see the property of the same name exposed by those editors), you can work around this, although you would then have to implement the IEditorDataFilter interface to make the conversions.
Hi thanks for your response. I started to look at the IEditorDataFilter and when I use the code in my first post and I modify like this (for the Color picker):
node2.Cells[_colValue].Editor = new ColorPickerEditor(); node2.Cells[_colValue].Editor.DataFilter = new ColorPickerEditorFilter();
And I created a class like this:
class ColorPickerEditorFilter : Infragistics.Win.IEditorDataFilter { object Infragistics.Win.IEditorDataFilter.Convert(Infragistics.Win.EditorDataFilterConvertArgs args) { return null; } }
As you can see the Convert method returns null and it works !! I can use the Color picker in my cell, edit it etc.. And the same for the check box.
It's a strange behaviour, isn't it ?
Thanks anyway :)
Actuall, what happens is that merely assigning an impelmentation to the DataFilter property lifts the restriction; we have to make the assumption that the implmenetaiton is going to work, so we automatically return true from the editor's CanEditType method when wesee that the DataFilter property is set.
I could be mistaken, but I think unconditionally returning null might prevent a value from ever getting back to the cell.
Thank you Mike and team for replying so quickly.
I tried so many ways before but could not succeed; now finally it is working, I am happy to see my particular node(s) getting bold in tree.
Hi,
The problem with this code is that you are walking up to the control. To change the appearance of a single node, you need to use the properties of that node.
nodeAtPoint.Override.NodeAppearance.FontData.Bold = Infragistics.Win.DefaultableBoolean.True;
I have similar problem. I want to make a particular node of tree as bold (or say of different color).
I have tried some thing below but this code is reflecting on the whole tree. All nodes become bold.
I only want my nodeAtPoint text to get bold.
//UltraTreeNode nodeAtPoint;
// try1:
//nodeAtPoint.UIElement.Control.Font = new Font("Arial", 20.0f, FontStyle.Bold);
//try 2:
//nodeAtPoint.Control.Font = new Font("Arial", 20.0f, FontStyle.Bold);
e.g in below UltraTree only B node is bold.
-A
-- B
----C
-D