CODEWITHSUNDEEP
vaadin8
rmuller
rmuller

Reputation: 12859

How to filter items in a Vaadin 8 Treegrid?

I want to filter the items in a Vaadin 8 TreeGrid based on a (user provided) search phrase and a back-end based (lazy loading) HierarchicalDataProvider.

I cannot find any references / examples how to realize the filtering part of this solution. I am looking for the correct way of doing this.

Upvotes: 1

Views: 1759

Answers (1)

Steffen Harbich
Steffen Harbich

Reputation: 2749

Basically your HierarchicalDataProvider must support this. See the docs. For the built-in InMemoryHierarchicalDataProvider a setFilter method is provided. For your own hierarchical data provider you could take the filter part of the HierarchicalQuery into account when implementing fetchChildren and the corresponding count method.

Upvotes: 2

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