extjs/build/examples/classic/tree/custom-drop-logic.html

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   7     <title>Tree Custom Drop Logic Example</title>
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  17 <body>
  18     <h1>Custom Tree Drop Logic</h1>
  19     <p>This example shows how to apply custom logic to valid dropping on nodes</p>
  20     <p>
  21     <ul>
  22         <li>Child 1 can be dropped on both nodes.</li>
  23         <li>Child 2 can be dropped only on the first node.</li>
  24         <li>Child 3 can be dropped only on the second node.</li>
  25         <li>Child 4 cannot be dropped on either node.</li>
  26     </ul>
  27     </p>
  28     <p>The js is not minified so it is readable. See <a href="custom-drop-logic.js">custom-drop-logic.js</a>.</p>
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