Control JavaScript with Ribbon Button

Question

my aim is to add a Ribbon Button which is opening a printing dialog for a selected file in a document library. I already added the Button with SP Designer and linked it with a html file which is calling the js.

The function printFile is called by the Ribbon.

function printFile() {
    try{
        //throws error
        ExecuteOrDelayUntilScriptLoaded(start, "sp.js");
    }catch(e){
        alert(e.message);
    }
}

function start() {
    var ctx = SP.ClientContext.get_current();
    var items = SP.ListOperation.Selection.getSelectedItems(ctx);
    var selectedItem = '';
    var itemURL;
    for (index in items) {
        //only for testing
        alert(items[index].id);
        alert(items[index].displayName);
        printDocument(items[index].file);
    }
}

When running i got this error:

The value of the property "ExecuteOrDelayUntilScriptLoaded" is null or undefined, not a Function object

Any idea to solve this error?

Answer 1

Change

ExecuteOrDelayUntilScriptLoaded(start, "sp.js");

with

SP.SOD.executeOrDelayUntilScriptLoaded(start, "sp.js");

Reference: http://msdn.microsoft.com/en-us/library/ff411788(v=office.14).aspx

Answer 2

can you please try This link .

Please update if working as I am also facing same challenge.
My developement: using VS 2010 add ribbon button as a feature and call Javascript. refer This Link

Thanks.