Grid visualization error with hidden header
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- Java
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Description
Vaadin Framework version: 8.2.0
The error occurs when a data provider is added to the grid after it are displayed in the application. The conditions must be the following:
- Put visible header to false
- Make a setExpandRatio to the columns and leave at least one without expanding it
- No setting a data provider
- After it is displayed on the web add the data provider
If you refresh de page, the error are resolve.
This is the example code to be examined. bug-grid.zip
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the attached bug-grid.zip example and reproduce the error using the listed Grid conditions: a hidden header, partial column expansion, and a data provider added after display. Done means adding the data provider no longer causes the grid visualization error and does not require a page refresh.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java
- Domain
- frontend
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100