Collapsing Elements in the Structure View

Once you can access an element's object, you can affect how it is displayed in the structure view.

By updating the walkTree() function with a single line of code, your script can collapse, as is the case here, or uncollapse elements in the tree.

function walkTree(elem, count) {
    var child, name;

    name = getElementName(elem);
    elem.ElementIsCollapsed = true; // collapse element
    Console(count + ":  " + name);
    child = elem.FirstChildElement; //get first child if any
    while (child.ObjectValid()) {
        count = count + 1; //upate element count
        count = walkTree(child, count); //traverse subtree with child root
        child = child.NextSiblingElement; //get the siblings
    }
    return count;
 }

Just be sure to redisplay the document when you are done to make your changes visible to the user.

doc.Redisplay();

Before the script was run, the structure view appears as follows:

After the running the script, it appears as shown here:



Just to verify that all elements in the tree were collapsed, I manually uncollapsed the root element to reveal that the script works as expected.