Why nodecheckbox is not responding user click?

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C++/CLI

Hi,

I'm using an aga.controls.treeviewadv component. I haven' t used it before. I have added a NodeCheckBox to the treeView nodeControls, but the check box is not selected when clicking. I set the NodeCheckBox control DataPropertyName to the name of System.Windows.Forms.CheckState property on the node object, but it is not working. Could you please tell me why the check box is not responding the user click?

What I have tried:

Here is the node class where the property is defined:

public ref class AgaTreeFeatureNode : public Aga::Controls::Tree::Node
{
public:
AgaTreeFeatureNode(System::String^ text) : Aga::Controls::Tree::Node(text)
{
this->Description = text;
}

property System::Windows::Forms::CheckState^ Checked;
};

And then in designer I set the NodeCheckBox DataPropertyName to "Checked".

this->nodeCheckBox1->DataPropertyName = L"Checked";