How to enable multiple select option in dhtmlx tree?

Suite and Optimus Suite 5
#1
  1. how to enable multiple select option in dhtmlx tree?



    2.

    I have created a DHTMLX Tree with checkbox, how to select a node when a checkbox is checked?



    i didnot see any method like setSelectedItem()… i have tried focusItem(itemid) it didnot worked



    3.

    How to associate a control key with the tree?



    4.

    I have serialised the tree to json file, and is modified the json file adding check=“1” for a particular node, but it didnot reflected in the tree. i.e. the node checkbox is not checked in the tree.





#2


>> how to enable multiple select option in dhtmlx tree?


tree.enableMultiselection(true)


In PRO edition only


>> I have created a DHTMLX Tree with checkbox, how to select a node when a checkbox is checked?


There is selectItem method:


tree.attachEvent(“onCheck”,function(id,state){


if(state) tree.selectItem(id)


return true


})


>> How to associate a control key with the tree?


If keyboard navigation isn’t enabled, tree doesn’t set key press event handlers.


You should use own method in this case.


>> I have serialised the tree to json file, and is modified the json file adding check=“1” for a particular node, but it didnot reflected in the tree. i.e. the node checkbox is not checked in the tree


Check state can be set as follows:


{…,item:[{id:“item id”,text:“item text”,checked:“1”}],…}