Is there a way of doing something for every item in an array?  I thought there was something called "foreach" that does this...  then again, I don't really know.

For example:

js code:

---

var Test = new Array("test1", "test2", "test3");
var TestDesc = new Array("This is Test 1.", "This is Test 2.", "This is Test 3.");

var TestWnd = MsgPlus.CreateWnd("Windows.xml", "WndTest", 0);

foreach (Test)
{
    TestWnd.LstView_AddItem("LstTest", Test);
    TestWnd.LstView_SetItemText("LstTest", 0, 1, TestDesc)
}

---

You mean something like:

JScript code:

---

for(var i = 0; i < MyArray.length; i++) {
    <code_goes_here>
}

---

JScript code:

---

/* CLASS Item([string] ID: the ID you stored in the Test array,
[string] Desc: the description you stored in the TestDesc array);*/
var Item = function(ID,Desc) {
    return {
        "ID":    ID,
        "Desc":    Desc
}

// Array of Item instances.
var MyArray = [
    new Item(
        "test 1",
        "This is test 1"),
    new Item(
        "test 2",
        "This is test 2"),
    new Item(
        "test N",
        "This is test N")
]

// Assume window is loaded and is assigned to WndTest;
for(var i = 0; i < MyArray.length; i++) {
    with(WndTest) {
        LstView_AddItem("ListViewID",MyArray[i].ID);
        LstView_SetItemText("ListViewID",i,1,MyArray[i].Desc);
    }
}

---

js code:

---

for (var s in test){
    Debug.Trace(test[s]);
}

---

[offtopic] LOL 3-minute intervals [/offtopic]

for...in is also a solution, but more used for Objects.

EDIT::

Looking at Whiz' code again, adding an Array to a list-view won;t work too well.

Umm...  I can't seem to get that to work - I just get an error saying "Expected }".

Basically, I have a main (editor) window, like this:

js code:

---

var WndWriterEditor = MsgPlus.CreateWnd("Windows.xml", "WndWriterEditor", 0);

---

js code:

---

var WndWriterAddItem = MsgPlus.CreateWnd("Windows.xml", "WndWriterAddItem", 0);

---

js code:

---

var WndID = WndWriterAddItem.GetControlText("EdtID");
var WndTitle = WndWriterAddItem.GetControlText("EdtTitle");
var WndDesc = WndWriterAddItem.GetControlText("EdtDesc");

---

js code:

---

WndWriterEditor.LstView_AddItem("LstWindows", WndID);
WndWriterEditor.LstView_SetItemText("LstWindows", 0, 1, WndTitle);
WndWriterEditor.LstView_SetItemText("LstWindows", 0, 2, WndDesc);

---

js code:

---

WndWriterEditor.LstView_GetSelectedState("LstWindows", 0);

---

quote:

---

Originally posted by Spunky

js code:

---

for (var s in test){
    Debug.Trace(test[s]);
}

---

EDIT: foreach is used in PHP

---

Jscript code:

---

for (var enumerator = new Enumerator(myCollection) ; !enumerator.atEnd(); enumerator.moveNext()) {
    // code
}

---

quote:

---

for...in is also a solution, but more used for Objects.

---

Actually, I think I get that bit now.

But I still have 2 questions:

1) I know that you can check if a particular ListViewControl entry is selected, using "LstView_GetSelectedState()", but can you get it so it checks the entire list, and returns the identifier of the selected item, rather than true or false for one entry?  Or would that have to use the "for (s in test)" thing as well?

2) How can you add another item to an array, without having to use "variable[n]"?  Can you do something like "variable += 'value'"?

Question 2: myArray.push(ItemVar); whereas ItemVar can be anything (even an array)

Question 1: No, there is not a method to retrieve the current selection. You can, however, do this:

JScript code:

---

var SelectedItem = -1;

function OnWndTestEvent_LstViewClicked(PlusWnd,ControlId,ItemIdx) {
    if(ControlId == "vLstTest") {
        SelectedItem = ItemIdx;
        <do_other_stuff>
    }
}

---

• OnWindowIdEvent_LstViewClicked();
  
• OnWindowIdEvent_LstViewDblClicked();
  
• OnWindowIdEvent_LstViewRightClicked();

js code:

---

var WndID = new Array();
var WndTitle = new Array();
var WndDesc = new Array();

function OnWndWriterAddItemEvent_CtrlClicked(objWnd, strControlId)
{
    switch (strControlId)
    {
        case "BtnAdd":
            WndID.push(objWnd.GetControlText("EdtID");
            WndTitle.push(objWnd.GetControlText("EdtTitle");
            WndDesc.push(objWnd.GetControlText("EdtDesc");
            break;
    }
}

---

Short answer: yes.

So, if ".push" adds an item (I'm assuming to the end of the list), how can you remove an item from an array?

I just looked on a JavaScript site, and it says that ".splice" can be used.  Does this work in Messenger Plus! Live?

Yep. MyArray.splice(index) is what you'll need to do.

Thanks! 

Google... http://www.w3schools.com/jsref/jsref_obj_array.asp

quote:

---

Originally posted by SmokingCookie
Question 1: No, there is not a method to retrieve the current selection. You can, however, do this:

JScript code:

---

var SelectedItem = -1;

function OnWndTestEvent_LstViewClicked(PlusWnd,ControlId,ItemIdx) {
    if(ControlId == "vLstTest") {
        SelectedItem = ItemIdx;
        <do_other_stuff>
    }
}

---

Make sure though that you catch all selection-related events and set SelectedItem accordingly. They are:

• OnWindowIdEvent_LstViewClicked();
  
• OnWindowIdEvent_LstViewDblClicked();
  
• OnWindowIdEvent_LstViewRightClicked();

A value of -1 means that no item is currently selected. That means, for example, there is only one item in the list-view control, and you click below that item.

Also, make sure to set SelectedItem back to -1 when the window is destroyed.

---

JScript code:

---

var LVM_FIRST    = 0x1000;
var LVM_GETNEXTITEM = LVM_FIRST + 12;
var LVNI_SELECTED = 0x2;

var SelectedItem = PlusWnd.SendControlMessage('vLstTest', LVM_GETNEXTITEM, -1, LVNI_SELECTED);

---

Great!    Thanks, everyone!