Why the CTreeCtrl disable[solved]

[yu jian]

When user click the item of the CListCtrl, I create a CTreeCtrl dynamicly to let use the data, but the CTreeCtrl is disabled, I do not know why. Is there anyone know why it is.

[Lost User]

yu-jian wrote:

but the CTreeCtrl is disabled, I do not know why. Is there anyone know why it is.

Without seeing some of your code we cannot even begin to guess what may be happening.

One of these days I'm going to think of a really clever signature.

[chaau]

At least show us the code you use to create the Tree Control

[yu jian]

Sorry

	CPoint point;
	GetCursorPos(&point);
	this->ScreenToClient(&point);
	CRect  rect;
	rect.top = point.y;
	rect.left = point.x;
	rect.right = rect.left + 200;
	rect.bottom = rect.top  + 300;
	
	CComboBox\* pComboBox = new CComboBox();
	pComboBox->Create(WS\_VISIBLE, rect, this, NULL);
	pComboBox->ShowWindow(SW\_SHOW);

	CDeviceInfoArray  arrDeviceInfo;
              ...

	 	for(int i = 0; i < arrDeviceInfo.GetCount(); ++i)
	 	{
	 		CString  strDevice;
	 		strDevice.Format("%d", arrDeviceInfo\[i\]);
	 
	 		pComboBox->AddString(strDevice);
	 	}

[David Crow]

Is your CTreeCtrl being disguised as a CComboBox? :confused:

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[yu jian]

Firstly, I use the CTreeCtrl, but failed, then I use the CComboBox, but also failed, too. I thought that it's the same problem.

[Lost User]

please show your CTreeListCtrl creation code. without seeing code how we can predict issue? ;)

[Lost User]

I don't know what this has to do with a tree control, but your Create() call is missing some windows styles (specifically WS_CHILD), and your control does not have an id. See the documentation[^] for more details.

One of these days I'm going to think of a really clever signature.