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+---
+title: onCanSelectNode
+name: options-oncanselectnode
+---
+
+You can set a function to override if a node can be selected. The function gets a node as parameter, and must return true or false.
+
+For this to work, the option 'selectable' must be 'true'.
+
+{% highlight js %}
+// Example: nodes with children cannot be selected
+$('#tree1').tree({
+ data: data,
+ selectable: true
+ onCanSelectNode: function(node) {
+ if (node.children.length == 0) {
+ // Nodes without children can be selected
+ return true;
+ }
+ else {
+ // Nodes with children cannot be selected
+ return false;
+ }
+ }
+});
+{% endhighlight %}