8768 :: Resolve Addrange issue after sorting. - #11300
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elachlan
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@RutulPatel8 - please investigate test failures and take a look at another PR in TreeNodesCollection area that might be addressing this regression as well |
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| treeView.Nodes.Add(child1); | ||
| treeView.Nodes.Add(child2); | ||
| treeView.Nodes.Add(child3); | ||
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After the nodes are added you can verify that they are not sorted. And after you sort them, you can verify that they are sorted
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As far as I understand, this issue repros only when AddRange is called from the Load event handler, or after the control was created, i.e. when AddRange is called after the native TreeView had been initialized, please include that in this test.
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The approach to this fix seems correct, but this fix causes failures in TreeView tests, please investigate them. Also this kind on a change requires an opt-in switch, like the one @elachlan added here - https://github.com/dotnet/winforms/pull/10493/files
Consider TreeNodeCollectionAddRangeRespectsSortOrder as an Opt-out switch name. Sorting is a logically expected behavior, thus making it an Opt-out.
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| _owner.Nodes.FixedIndex = _owner._childNodes.Count; | ||
| if (tv is not null && !tv.Sorted) |
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| if (tv is not null && !tv.Sorted) | |
| if (tv is null || !tv.Sorted) |
This is the reason of the test failures
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Let me correct it.
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@RutulPatel8 I am sorry. I was trying to fix the conflict but I messed up 🤣 I created a new pr here 11423 |
4 participants
Fixes #8768
Proposed changes
if tree is already sorted then we don't want to set fixed Index value. due to these reason It is misbehave.
Customer Impact
Regression?
Risk
Before
When the user adds a value to the treenode list and sorts it using treeview.sort(), it works fine. Subsequently, when the user adds individual trees through the add event, it functions as expected and sorts the entire tree automatically. However, if the user adds multiple values through AddRange, it does not work as expected.
After
I've fixed the sorting issue we discussed earlier, and now everything is working smoothly. When users add values individually or use treeview.sort(), the sorting works fine. Even when they add multiple values at once using AddRange, the sorting behaves as expected.
Test methodology
Test environment(s)
Microsoft Reviewers: Open in CodeFlow