Illustrator Script: help needed – value of "edittext" (entered text) not returning

Hi jduncan,

thank you so much for your great answers!

Q1: Yesssss! This did the job! (it's always the small things 😉

Q2: worked perfectly. I did choose the double click one as well.

BTW(!) Is it possible to double click the whole line in the list instead of only on the characters?

Q3: Thanks! Thats what I thought as well.

Here's the final Script. I rewrote the whole dialog box part, added an input cleaner, encoding converter and alerts to show some steps:

#target illustrator

if (app.documents.length > 0) {
    
    
////// first things first and basic checks

    var docRef = app.activeDocument,
        title = "my Window",
        myDataBase = [
            ["DE","EN","FR"],
            ["eins","zwei","drei"],
            ["one","two","three"],
            ["un","deux","trois"]
            ];    
    
    var myLanguages;
    var myL_array = [];

    
// main Script
    createSelectBox(myDataBase);
alert("myL_array: "+myL_array);
alert("myL_array.length: "+myL_array.length);
alert("myL_array[0]: "+myL_array[0]);


    
} else {
    alert(enCoding("Bitte öffnen Sie eine Datei um das Script zu benutzen."));
}


// create dialog box
function createSelectBox(thisDataBase) {

// ====== DIALOG WINDOW
    
    var dialog = new Window("dialog"); 
        dialog.text = "Sprachen kombinieren"; 
        dialog.orientation = "column"; 
        dialog.alignChildren = ["left","top"]; 
        dialog.spacing = 12; 
        dialog.margins = 16; 

// ====== SECTION 1
    
    var panel1 = dialog.add("panel", undefined, undefined, {name: "panel1"});
        panel1.text = "Daten"; 
        panel1.orientation = "column"; 
        panel1.alignChildren = ["left","top"]; 
        panel1.spacing = 10; 
        panel1.margins = 16; 

    var statictext1 = panel1.add("statictext", undefined, undefined, {name: "statictext1", multiline: true}); 
        statictext1.text = enCoding("Folgende Sprachen sind in dieser Datei enthalten:"); 
        statictext1.preferredSize.width = 400;

    var listbox1_array = [];
    for (var i = 0; i < thisDataBase.length; i++) {
        var thisLanguage = thisDataBase[0][i];
        listbox1_array.push(thisLanguage); //// add language to list
    }    
    var listbox1 = panel1.add("listbox", undefined, undefined, {name: "listbox1", items: listbox1_array, numberOfColumns: 2}); 
        listbox1.preferredSize.width = 400; 
        listbox1.preferredSize.height = 150;
        // works anytime a listbox selection is double-clicked
        listbox1.onDoubleClick = function () {
          if (!this.selection) return;
            if (edittext1.text.length == 0){
                edittext1.text = edittext1.text + this.selection.text;
            }else{
                edittext1.text = edittext1.text + "," + this.selection.text;
            }
        }

// ====== SECTION 2
    
    var panel2 = dialog.add("panel", undefined, undefined, {name: "panel2"}); 
        panel2.text = "Sprachenauswahl"; 
        panel2.orientation = "column"; 
        panel2.alignChildren = ["left","top"]; 
        panel2.spacing = 10; 
        panel2.margins = 16; 

    var statictext2 = panel2.add("group", undefined , {name: "statictext2"}); 
        statictext2.getText = function() { var t=[]; for ( var n=0; n<statictext2.children.length; n++ ) { var text = statictext2.children[n].text || ''; if ( text === '' ) text = ' '; t.push( text ); } return t.join('\n'); }; 
        statictext2.preferredSize.width = 400; 
        statictext2.orientation = "column"; 
        statictext2.alignChildren = ["left","center"]; 
        statictext2.spacing = 0; 

        statictext2.add("statictext", undefined, enCoding("Bitte alle benötigten Sprachen (mit Komma getrennt) in")); 
        statictext2.add("statictext", undefined, enCoding("gewünschter Reihenfolge hier eingeben (Beispiel: DE,EN,FR):")); 

    var edittext1 = panel2.add('edittext {properties: {name: "edittext1"}}'); 
        edittext1.helpTip = enCoding("Bitte kommagetrennt und ohne Leerzeichen eingeben!\nBeispiel: DE,EN,FR"); 
        edittext1.preferredSize.width = 400;
        //dialog.onShow = function () { edittext1.active = true; } //// callback just in case active does not to work as expected
        edittext1.active = true;

// ====== BUTTON GROUP
    
    var group1 = dialog.add("group", undefined, {name: "group1"}); 
        group1.orientation = "row"; 
        group1.alignChildren = ["left","center"]; 
        group1.spacing = 12; 
        group1.margins = 0; 
        group1.alignment = ["right","top"]; 

    var buttonOK = group1.add("button", undefined, undefined, {name: "buttonOK"}); 
        buttonOK.text = "OK";
        buttonOK.onClick = function() { 
            myLanguages = edittext1.text;
            if (myLanguages != '' && myLanguages.length >= 2){
                dialog.close();
                createFinalText();
            }else{
                alert(enCoding("Es muss mindestens ein (1) zweistelliger Sprachcode eingegeben werden!"));
            }
        }

    var buttonCancel = group1.add("button", undefined, undefined, {name: "buttonCancel"}); 
        buttonCancel.text = "Abbrechen";
        buttonCancel.onClick = function() { dialog.close(); }

    dialog.show();
}

function createFinalText() {
    alert("myLanguages(before): "+myLanguages);
    cleanMyInput(myLanguages);
    alert("myLanguages(after): "+myLanguages);
}

function cleanMyInput(myData) {
    myData = myData.replace(/\s+/g, '').replace(";", ",").replace(".", ",").replace("/", ","); //// replace common separaters
    myL_array = myData.split(','); //// split by character to array
}

////// basic functions


// convert any umlaut
function enCoding(s) {
	s = s.replace(/ä/g, '\u00E4'); 
	s = s.replace(/Ä/g, '\u00C4'); 
	s = s.replace(/ö/g, '\u00F6'); 
	s = s.replace(/Ö/g, '\u004F'); 
	s = s.replace(/ü/g, '\u00FC'); 
	s = s.replace(/Ü/g, '\u0055'); 
	s = s.replace(/©/g, '\u00A9');	 
	return s;	 
}