Multiple Filter for Grid

Vaadin 6 / 7 / 8
1

Hello everyone,
I have two filters for a Grid. One is for name, one is for assignee field. When I type something in the textfields, it returns the correct result but when i clear the textfield or remove some letter from it , it doesn’t refresh itselfs. It contunies the filter the result.

For exapmle

Name Assignee
ABCDEF John
ABCDEF Jane

When I enter abc to name filter it returns both of the rows, then I enter john to assignee filter and it just returns the first raw. But when I clear the both filters, it doesnt return the second raw.

Here is my code;
TextField tfName = new TextField();
tfName.addValueChangeListener(event → {
dataProvider.refreshAll();
((InMemoryDataProvider) dataProvider).addFilter(task → {
if (event.getValue().equals(“”) || event.getValue() == null) {
return true;
}
String name = task.getName();
String nameLower = name == null ? “” : name.toLowerCase(Locale.ENGLISH);
String filterLower = event.getValue().toLowerCase(Locale.ENGLISH);
return nameLower.contains(filterLower);
});

    });
    filterRow.getCell("taskName").setComponent(tfName);

    TextField tfAssignee = new TextField();
    tfAssignee.addValueChangeListener(event -> {
        dataProvider.refreshAll();
        ((InMemoryDataProvider<Task>) dataProvider).addFilter(task -> {
            if (event.getValue().equals("") || event.getValue() == null) {
                return true;
            }
            String assignee = "";
            if (task.getAssignedUser() != null) {
                assignee = task.getAssignedUser().getFirstName() + " " + task.getAssignedUser().getLastName();
            }
            String nameLower = assignee == null ? "" : assignee.toLowerCase(Locale.ENGLISH);
            String filterLower = event.getValue().toLowerCase(Locale.ENGLISH);
            return nameLower.contains(filterLower);
        });

    });
    filterRow.getCell("taskAssignee").setComponent(tfAssignee);

Any idea how can solve this problem? Thanks in advance.

2

Instead of using addFilter, you should use setFilter, because addFilter will keep the old filters, that’s why the grid wasn’t refreshed.

3

yes, check all the fields from a single method is the way to go

4

But then it would not be multiple filter anymore. I actually solved this problem by using a filter() function that I implemented, I am checking all the fields from there.

     if (tfName.getValue() != null && !tfName.equals("")) {

        String name = task.getName();
        String nameLower = name == null ? "" : name.toLowerCase(Locale.ENGLISH);
        String filterLower = tfName.getValue().toLowerCase(Locale.ENGLISH);
        result = nameLower.contains(filterLower);
        if (result == false) {
            return result;
        }
    }
    if (tfAssignee.getValue() != null && !tfAssignee.equals("")) {

        String assignee = "";
        if (task.getAssignedUser() != null) {
            assignee = task.getAssignedUser().getFirstName() + " " + task.getAssignedUser().getLastName();
        }
        String assigneeLower = assignee == null ? "" : assignee.toLowerCase(Locale.ENGLISH);
        String filterLower = tfAssignee.getValue().toLowerCase(Locale.ENGLISH);
        result = assigneeLower.contains(filterLower);
        if (result == false) {
            return result;
        }
    }