https://bugzilla.novell.com/show_bug.cgi?id=363367
Summary: TreeView plus/minus box fails with owner drawn
checkboxes
Product: Mono: Class Libraries
Version: 1.2.6
Platform: PC
OS/Version: Windows XP
Status: NEW
Severity: Normal
Priority: P5 - None
Component: Windows.Forms
AssignedTo: [email protected]
ReportedBy: [EMAIL PROTECTED]
QAContact: [email protected]
CC: [EMAIL PROTECTED]
Found By: ---
If you have an owner drawn checkbox the plus minus is treated as if it is where
the checkbox is located.
To reproduce:
1. Create a TreeView
2. Set CheckBoxes = false
3. Create an ImageList with 2 images
4. Set TreeView.StateImageList to the ImageList created above
5. Create some nodes with children and set the StateImageIndex to 0 for each of
them
6. Run
7. Click on a plus/minus box next to a node.
(NOTE: see bug 363353 if the above setup causes an exception in Mono.)
Actual Result:
Clicking on plus/minus does nothing. However click the checkbox does
expand/collapse the tree.
Expectant Result:
Clicking on plus/minus expands/collapses tree. Click checkbox won't do anything
unless coded explicitly to do so.
Observation:
It is just detecting the plus/minus box at the wrong location. See the code
below from TreeView:
private bool IsPlusMinusArea (TreeNode node, int x)
{
...
int l = node.Bounds.Left + 5;
if (show_root_lines || node.Parent != null)
l -= indent;
if (ImageList != null)
l -= ImageList.ImageSize.Width + 3;
*see here: >>>>> if (checkboxes)
l -= 19;
return (x > l && x < l + 8);
}
*maybe should be "if (checkboxes || StateImageList !=null)
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