Drag & drop between 2 treeviews

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   I need help for the drag & drop operation between two CodeJock treeviews. 

In the OLEDragDrop-event  the target treeview receives something. But I'm not able to convert this to a TreeViewNode. Please see the code. Is it necessary to do something in the OLEDragOver-Event? A sample would be great.

private void SourceTreeView_OLEStartDrag(object sender, AxXtremeSuiteControls._DTreeViewEvents_OLEStartDragEvent e)
{
    e.allowedEffects = 1; // Copy

    // ------------------------------------------------------------------------------------------------------------------------------------------
    // Is it necessary to use the SetData-method?
    // ------------------------------------------------------------------------------------------------------------------------------------------
    //XtremeSuiteControls.TreeViewNode node = SourceTreeView1.SelectedItem;
    //e.data.Clear();
    //e.data.SetData(node,???Format???);
}

private void TargetTreeView_OLEDragDrop(object sender, AxXtremeSuiteControls._DTreeViewEvents_OLEDragDropEvent e)
{
    XtremeSuiteControls.TreeViewNode newnode = (XtremeSuiteControls.TreeViewNode)e.data;
    // ------------------------------------------------------------------------------------------------------------------------------------------
    // newnode is always null
    // type of e.data is XtremeSuiteControls.DataObject {System.__ComObject} and the value is {System.__ComObject}. 
    // How can I convert this to a TreeViewNode?
    // What's to do with the e.effect-value? This value is alwasy 7.
    // ------------------------------------------------------------------------------------------------------------------------------------------
}

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iamgtd Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 25 February 2009 Status: Offline Points: 131	Post Options Post Reply Quote iamgtd Report Post Thanks(0) Quote Reply Topic: Drag & drop between 2 treeviews Posted: 28 October 2009 at 6:14am
	I need help for the drag & drop operation between two CodeJock treeviews. In the OLEDragDrop-event the target treeview receives something. But I'm not able to convert this to a TreeViewNode. Please see the code. Is it necessary to do something in the OLEDragOver-Event? A sample would be great. private void SourceTreeView_OLEStartDrag(object sender, AxXtremeSuiteControls._DTreeViewEvents_OLEStartDragEvent e) { e.allowedEffects = 1; // Copy // ------------------------------------------------------------------------------------------------------------------------------------------ // Is it necessary to use the SetData-method? // ------------------------------------------------------------------------------------------------------------------------------------------ //XtremeSuiteControls.TreeViewNode node = SourceTreeView1.SelectedItem; //e.data.Clear(); //e.data.SetData(node,???Format???); } private void TargetTreeView_OLEDragDrop(object sender, AxXtremeSuiteControls._DTreeViewEvents_OLEDragDropEvent e) { XtremeSuiteControls.TreeViewNode newnode = (XtremeSuiteControls.TreeViewNode)e.data; // ------------------------------------------------------------------------------------------------------------------------------------------ // newnode is always null // type of e.data is XtremeSuiteControls.DataObject {System.__ComObject} and the value is {System.__ComObject}. // How can I convert this to a TreeViewNode? // What's to do with the e.effect-value? This value is alwasy 7. // ------------------------------------------------------------------------------------------------------------------------------------------ }
	--------- OS: Win 10 64 bit Codejock Version 22.1 ActiveX MS Visual Studio 2022 - C# ---------