How to set lookup field using javascript in Dynamics CRM

 In Microsoft CRM such huge numbers of individuals have numerous issues with retriving information from the Lookup field . 

Presently in this post I will offer how to retrive Lookup information and set the qualities into fields. 

Here in the fundamental things is field sensible names 

, it's case delicate we will duplicate the specific sensible name and glue into the code appropriately. In Lookup field getting information we will follow slight distinction legitimate name 

$select=lvt_address,lvt_email,lvt_phone,_lvt_contactofferlookup_value") 

If it's not too much trouble check it the above We are getting ordinary field without looking we use "lvt_address", " lvt_email" and so forth. Presently we will getting query field esteem is comparative yet slight contrast we use "_lvt_contactofferlookup_value". 

Presently we have araised one uncertainty as a primary concern right how we will take those intelligent field names. We don't trouble on that since framework is produced consequently when we make fields in CRM structures.

JavaScript webapi :

function RetrieveLookupRecord() {
    debugger;
    try {
        var offerGuid = null, nextLine = "\n";
      
        offerGuid = Xrm.Page.getAttribute("lvt_offerlookup").getValue();

        if (offerGuid != null && offerGuid != "") {

            Xrm.WebApi.retrieveRecord("lvt_offer", offerGuid[0].id, "$select=lvt_address,lvt_email,lvt_phone,_lvt_contactofferlookup_value")
            .then(function (data) {
                retrieveContactSuccess(data);
            },
             function (error) {
                 Xrm.Utility.alertDialog(error.message);
             });
        }
    } catch (e) {

        Xrm.Utility.alertDialog(e.message);
    }


    ///retrieve success
    function retrieveContactSuccess(data) {

        try {
            //get the values 

            //string
            var Address = data["lvt_address"];
            var Email = data["lvt_email"];
            var Phone = data["lvt_phone"];
            var retrivedvalue = data["_lvt_contactofferlookup_value"];
            var retrivedvalueformatted = data["_lvt_contactofferlookup_value@OData.Community.Display.V1.FormattedValue"];
            var retrivedvalueentityType = data["_lvt_contactofferlookup_value@Microsoft.Dynamics.CRM.lookuplogicalname"];
            if (retrivedvalue != null) {
                var value = new Array();
                value[0] = new Object();
                value[0].id = retrivedvalue;
                value[0].name = retrivedvalueformatted;
                value[0].entityType = retrivedvalueentityType;
            }
            
            Xrm.Page.getAttribute('lvt_address').setValue(Address);
            Xrm.Page.getAttribute('lvt_email').setValue(Email);
            Xrm.Page.getAttribute('lvt_phone').setValue(Phone);
            Xrm.Page.getAttribute("lvt_contactlookup").setValue(value);
            }
        catch (e) {
            Xrm.Utility.alertDialog(e.message);
        }
}
}