View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0005116 | JEDI VCL | 00 JVCL Components | public | 2010-01-19 12:23 | 2010-10-08 14:52 |
| Reporter | dff | Assigned To | obones | ||
| Priority | normal | Severity | major | Reproducibility | always |
| Status | resolved | Resolution | not fixable | ||
| Product Version | 3.35 | ||||
| Target Version | Fixed in Version | ||||
| Summary | 0005116: TJvCheckTreeView.OnToggling - AllowChange parameter | ||||
| Description | Regardless of value assigned to the AllowChange parameter in TJvCheckTreeView.OnToggling check box's state is always changed after clicking. I suppose that the state should remain unchanged if the value was false (like in example below). I have tried with up-to-date snapshot http://jvcl.sf.net/daily/, it's the same. Example: procedure TFrmMain.JvCheckTreeViewOnToggling(Sender: TObject; Node: TTreeNode; var AllowChange: Boolean); begin AllowChange := false; end; | ||||
| Tags | No tags attached. | ||||
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I've tracked this issue more carefully: when AllowChange is set to false, the state of check box remains unchanged and OnNodeCheckedChange event isn't fired, but the visual representation of check box changes as if its state has. This is very misleading - the look of component doesn't match its state. |
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Please provide the zipped sources of a sample application showing this |
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I have the same problem - I have used: procedure TForm1.JvCheckTreeView1Toggling(Sender: TObject; Node: TTreeNode; var AllowChange: Boolean); begin AllowChange:=false; end; procedure TForm1.JvCheckTreeView1Changing(Sender: TObject; Node: TTreeNode; var AllowChange: Boolean); begin AllowChange:=false; end; But user still can check/uncheck check boxes. I will attach an example. |
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2010-03-22 16:08
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CheckTreeViewError.zip (380,768 bytes) |
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OnChanging is for preventing changing the active node, it has nothing to do with the check/uncheck state change |
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For this to work, you must use the cbsJVCL style AND a state image image list. If you don't, the checkbox state is managed by the operating system and we have no control over it. |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2010-01-19 12:23 | dff | New Issue | |
| 2010-01-19 12:51 | dff | Note Added: 0017138 | |
| 2010-03-08 15:23 | obones | Note Added: 0017238 | |
| 2010-03-08 15:23 | obones | Status | new => feedback |
| 2010-03-22 16:07 | vandrovnik | Note Added: 0017316 | |
| 2010-03-22 16:08 | vandrovnik | File Added: CheckTreeViewError.zip | |
| 2010-10-08 14:47 | obones | Note Added: 0017769 | |
| 2010-10-08 14:52 | obones | Note Added: 0017770 | |
| 2010-10-08 14:52 | obones | Status | feedback => resolved |
| 2010-10-08 14:52 | obones | Resolution | open => not fixable |
| 2010-10-08 14:52 | obones | Assigned To | => obones |
