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  1. PO
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    <p>It seems that you forgot to add a callback element to your handler...</p> <pre><code>addCallbackElement(name); </code></pre> <p>regards, Serge</p> <p>EDIT : Hi Joe, I'm also working on something like this... I thought it could be interesting to show what I have so far... not finished yet ;-) I paste the whole thing so you can esily test it:</p> <pre><code>function onOpen() { var ss = SpreadsheetApp.getActiveSpreadsheet(); var menuEntries = [ {name: "Doclist UI", functionName: "doclistUI"}, ]; ss.addMenu("Utilities", menuEntries);// } // function doclistUI(){ var folderlist = new Array(); var folders=DocsList.getFolders() for(ff=0;ff&lt;folders.length;++ff){ folderlist.push(folders[ff].getName()); } var app = UiApp.createApplication().setHeight(260).setWidth(700).setStyleAttribute('background', 'beige') .setStyleAttribute("position", "relative").setStyleAttribute("left", "10").setStyleAttribute("top", "12px"); app.setTitle("Doclist UI"); var panel = app.createVerticalPanel() var hpanel = app.createHorizontalPanel(); var hpanel2 = app.createHorizontalPanel(); var Flist= app.createListBox(false).setName("Flb").setId("Flb").setVisibleItemCount(4).setWidth("180"); var Dlist= app.createListBox(false).setName("Dlb").setId("Dlb").setVisibleItemCount(8).setWidth("280"); var Flab=app.createLabel('Folder List').setWidth("80"); var Dlab=app.createLabel('Document List').setWidth("100"); var spacer=app.createLabel(' ').setWidth("30"); var spacer2=app.createLabel(' ').setWidth("15"); // Flist.addItem('Choose a folder'); for(ff=0;ff&lt;folderlist.length;++ff){ Flist.addItem(folderlist[ff]); } var anchor = app.createAnchor('open ', "www.google.com").setId('anchor').setVisible(false); hpanel.add(Flab).add(Flist).add(spacer).add(Dlab).add(Dlist) var docname = app.createLabel().setId('doc').setSize("360", "40"); hpanel2.add(anchor).add(spacer2).add(docname); var dwnld = app.createButton("Download").setId("dwnld"); panel.add(hpanel).add(hpanel2).add(dwnld); // var FHandler = app.createServerHandler("click"); Flist.addChangeHandler(FHandler) FHandler.addCallbackElement(hpanel); // var DHandler = app.createServerHandler("showlab"); Dlist.addChangeHandler(DHandler); DHandler.addCallbackElement(hpanel); // var keyHandler = app.createServerHandler("download"); dwnld.addClickHandler(keyHandler) keyHandler.addCallbackElement(panel); // app.add(panel); var doc = SpreadsheetApp.getActive(); doc.show(app); } // function click(e){ var app = UiApp.getActiveApplication(); var Dlist = app.getElementById("Dlb"); var label = app.getElementById('doc') var folderName = e.parameter.Flb if (folderName=='Choose a folder'){Dlist.clear();label.setText(" ");return app} var doclist=new Array(); doclist=DocsList.getFolder(folderName).getFiles(0,2000) if(doclist.length==0){Dlist.clear();Dlist.addItem(' No files');return app} var names = new Array(); for (nn=0;nn&lt;doclist.length;++nn){ names.push([doclist[nn].getName(),doclist[nn].getId()]); } names.sort(); Dlist.clear(); for(dd=0;dd&lt;names.length;++dd){ Dlist.addItem(names[dd][0]+" (doc Nr:"+dd+")"); } return app ;// update UI } // function showlab(e){ var app = UiApp.getActiveApplication(); var label = app.getElementById('doc') var link = app.getElementById('anchor') var Dlist = app.getElementById("Dlb"); var folderName = e.parameter.Flb var docname = e.parameter.Dlb var doclist=new Array(); Logger.log(doclist.length) doclist=DocsList.getFolder(folderName).getFiles(0,2000) if(doclist.length==0){return app} var names = new Array(); for (nn=0;nn&lt;doclist.length;++nn){ names.push([doclist[nn].getName(),doclist[nn].getId()]); } names.sort(); var filename = e.parameter.Dlb var ID= Number(filename.substring(filename.lastIndexOf(":")+1).replace(")","")); var docN = docname.substr(0,docname.lastIndexOf("(")) label.setText(docN).setEnabled(false).setStyleAttribute('fontSize', '15') link.setVisible(true).setHref("https://docs.google.com/spreadsheet/ccc?key="+names[ID][1]+"#gid=0"); return app ;// update UI } // function download(e){ // this part not implemented yet :-/ var app = UiApp.getActiveApplication(); var Dlist = app.getElementById("Dlb"); var folderName = e.parameter.Flb var doclist=new Array(); doclist=DocsList.getFolder(folderName).getFiles(0,2000) var names = new Array(); for (nn=0;nn&lt;doclist.length;++nn){ names.push([doclist[nn].getName(),doclist[nn].getId()]); } names.sort(); // var filename = e.parameter.Dlb var ID= Number(filename.substring(filename.lastIndexOf(":")+1).replace(")","")); Browser.msgBox(names[ID][1]) return app ;// update UI } //eof </code></pre>
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    1. PODocsListDialog examples
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    1. USSerge insas
    1. USSerge insas
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    1. COI think this is not required for the DocsListDialog
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      1. USHenrique G. Abreu
    2. COHi Serge, nice to see you over here :) The code that Waqar showed does indeed return the values I needed. However, the code above is being called from this code: `var MyFileBtnhandler = app.createServerClickHandler('doclistdialog').addCallbackElement(lbavailSheets);` with lbavailSheets an element on the parent page. Should there be something different as a CallBackelement? I don't see how to get the value I want back to the parent for processing.
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      1. USJoe Foley
    3. CONote : the script I just posted shows only spreadsheets, as I said, it's a 'work in progress' ;-)
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      1. USSerge insas
 

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