CODEWITHSUNDEEP
treeviewkendo-ui
Will
Will

Reputation: 420

Update Treeview dataSource on drag and drop?

I'll keep the question below, but if anybody else has this problem the issue was a bug in kendo and has been fixed in the most recent version. So the solution is to update to the latest kendo release.

I've been trying to find a good way of listing all of the nodes in a kendo-ui treeview, and have managed to put together a pretty solid way of doing so. First I define the dataSource, for the sake of simplicity let's say:

data = [
    {text:element1, items:[
        {text:element2},
        {text:element3}]},
    {text:element4}]

Then, I set the data source as an observableHierarchy:

my_treeview.setDataSource(kendo.observableHierarchy(data));

When I want to access the list of nodes, I can get a JSON object with:

my_treeview.dataSource.data().toJSON();

This works well; it produces a correct, properly-formatted JSON object. If I call JSON.stringify on the above, I get:

[{"text":"element1","items":[{"text":"element2","items":[]},{"text":"element3","items":[]}]},{"text":"element4","items":[]}]

However, when I enable drag and drop on my tree and drag an element into a different parent, it disappears from the json output. For example, if I drag element3 into element4, the json object returned is:

[{"text":"element1","items":[{"text":"element2","items":[]}]},{"text":"element4","items":[]}]

Which is the equivalent of:

data = [
    {text:element1, items:[
        {text:element2}]}
    {text:element4}]

The table's display remains correct, however, with element 3 appearing to be a child of element4. So my question is, how can I get the dataSource to update properly with drag & drop?

Upvotes: 0

Views: 1691

Answers (1)

Will
Will

Reputation: 420

If anybody else has this problem, the issue was a bug in kendo which has been fixed in the most recent version. So the solution is to update to the latest kendo release.

Upvotes: 2

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