Dynamically add options to an Option Set using JavaScript

Multi Select Lookup Cross Browser CRM 2011 Update Rollup 12

We have created a multiselect lookup in crossbrowser in crm 2011.You have to create a hidden field(Single Line of Text) to store multiselect lookup values
You have to replace name of fields with your fields name.
Following Script help You.


function onLoad() {

    document.getElementById("lookupname")._behaviors[0].set_lookupStyle("multi");
  
    var data = new Array();
     // hidden field storing multi lookupvalue
    var store = Xrm.Page.getAttribute("hiddenfieldname").getValue();

    if (store != null) {
        data = store.split(";");

        var typename = "lookupentityname";

        var arr = new Array();
        var i = 0;
        var j = 0;

        for (i = 0; i < ((data.length - 1) / 2); i++) {

            arr[i] = new Object();

            arr[i].name = data[j];

            arr[i].id = data[j + 1];
            arr[i].typename = typename;

            j++;
            j = j + 1;


        }

        document.getElementById("lookupname")._behaviors[0].set_dataValue(arr)
       

    }

}
function Onsave() {

     var value = document.getElementById("lookupname")._behaviors[0].get_dataValue();



    var s;
    var temp = "";
    if (value != null) {
        for (s = 0; s < value.length; s++) {

            var temp2 = "";

            temp2 = value[s].name + ";" + value[s].id + ";";
            temp = temp + "" + temp2;

        }

    }
   
    Xrm.Page.getAttribute("hiddenfieldname").setValue(temp);
    Xrm.Page.getAttribute("hiddenfieldname").setSubmitMode("always");
    Xrm.Page.getAttribute("lookupname").setValue(null);
    document.getElementById("lookupname")._behaviors[0].set_lookupStyle("single");
}

 

Regards

Crm Blog 2011 Team