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DropSources

configuration

Array of id strings which determines the ListBoxes that can drag and drop their items to the current ListBox. The dropSources option describes a one way relationship. If you want a two-way connection, then set the dropSources option on both widgets.

You have to set the draggable option to all source ListBox widgets that are described in dropSources.

dropSources

Array

<select id="listBoxA">
    <option>ItemA1</option>
    <option>ItemA2</option>
</select>
<select id="listBoxB">
    <option>ItemB1</option>
    <option>ItemB2</option>
</select>

<script>
    $("#listBoxA").kendoListBox({
        draggable: true
    });

    $("#listBoxB").kendoListBox({
        dropSources: [ "listBoxA" ]
    });
</script>