Using WinComboEditor as an embedded editor control in WinTree

Harminder posted over 16 years ago

I have a DropDownList combo box loaded with 10 items. I have assigned this to teh WinTree.Override.EditorControl. Everything work fine and Editor control shows properly. However, when an item is selected in the combo box, events such as ValueChanged, SelectionChanged do not fire. The problem is that I want to do different things based on the SelectionIndex. However, it is always 0.

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Dmitry posted over 15 years ago in reply to Brian Fallon

Thank you. My mistake.
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Offline Brian Fallon posted over 15 years ago in reply to Dmitry

doreshk said:
What do you mean by “not the controls”?
I mean that you should not handle the UltraComboEditor control's events, you need to handle the events of the EditorWithCombo embeddable editor that the UltraComboEditor control provides to the cell from which the dropdown appears. Your original post and this one would seem to indicate that you are handling the UltraComboEditor control's events, and not those of the editor. The post of Feb.1, 2008 demonstrates how to do this with a code example - the events being handled therein are the events of the EditorWithCombo embeddable editor, not those of the UltraComboEditor control.

doreshk said:
what could cause ValueChanged and SelectionChanged not to fire when different item is picked in editor, but changing SelectedIndex from code fires these events
The UltraComboEditor control does not know or care that it is providing an editor to an UltraTree cell, so when its SelectedIndex property is changed programmatically, it fires its own ValueChanged/TextChanged/SelectedIndexChanged events. When an item is selected from the dropdown that appears under a cell, the UltraComboEditor control is not involved in the interaction, so its events do not fire, only those of the embeddable editor do.
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Dmitry posted over 15 years ago in reply to Brian Fallon

Obviously I've read that post - I was replying to it. And yes, I’m handling events of editor. What do you mean by “not the controls”?

My question is what could cause ValueChanged and SelectionChanged not to fire when different item is picked in editor, but changing SelectedIndex from code fires these events? Any properties of the UltraTree?

UltraComboEditor ultraComboEditor = null;
private void FillEditor(UltraTreeNode folderNode)
{
ultraComboEditor = new UltraComboEditor();ultraComboEditor.ValueChanged += new EventHandler(this.ultraComboEditor_ValueChanged);ultraComboEditor.SelectionChanged += new EventHandler(this.ultraComboEditor_SelectionChanged);ultraComboEditor.Items.Add(“item1”,”item1”);folderNode.Override.LabelEdit = DefaultableBoolean.True;folderNode.Override.UseEditor = DefaultableBoolean.True;folderNode.AllowCellEdit = AllowCellEdit.Full;folderNode.Cells["somepage"].EditorControl = ultraComboEditor;folderNode.Override.CellClickAction = CellClickAction.ActivateCell;}
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Offline Brian Fallon posted over 15 years ago in reply to Dmitry

Please read the post from Feb. 1, 2008. To summarize, you need to handle the events of the editor embedded within the tree, not the control's. That post demonstrates how to do that.
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Dmitry posted over 15 years ago in reply to Brian Fallon

Hi,

I'm also using UltraComboEditor inside one of Cells on UltraTreeNode.

I hook UltraComboEditors events ValueChanged and SelectionChanged. I can get these to fire only by changing SelectedIndex from code:

editor.SelectedIndex = x ;

They do not fire if different item is picked in GUI.

Could you please advise?

Thank you.

P.S. Using version 7.1
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