Question

while renaming a node in jstree, I wanted to validate for special characters in renaming, and if found , I wanted to alert user, and roll back to the old name.

for that I have added

• rename context menu
• after that I did bind with node_rename and rename event
• in binding I check for event.type === node_rename
• I am able to validate special characters of new name as I get new name in data.args[1]
• but before my alert comes, rename is already taken place, and I dont find a way to undo that.

Any help is appreciated.

Answer 1

Instead of binding rename_node, I needed to bind to rename.jstree, and then needed to use rollback of action.

Here the bind event code.

if(type === 'rename')
{
        var new_Name = data.rslt.new_name;
        var iChars = "!@#$%^&*()+=[]\\\';,/{}.-_|\":<>?";
        for (var i = 0; i < new_Name.length; i++) 
        {
            if (iChars.indexOf(new_Name.charAt(i)) != -1) 
            {
                alert ("Special characters are not allowed.");
                $.jstree.rollback(data.rlbk);
            }
        }
 }