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Tuesday 20 November 2012

Add Multiple Entities to "Look for" optionset in Lookup Field in crm 2011 Using Javascript

If you create custom lookup in CRM, this lookup is oriented only for one entity.
I want to add possibility to select from some entities in one lookup.

I have custom lookup "originatingleadid". This lookup is oriented on Lead entity. I want to select from views of three different entities: Lead, Contact, User.

For this I've done some customization in opportunity entity, I've created three hidden text fields:
new_type - to save lookup type
new_guid - to save lookup guid
new_name - to save lookup name.
That is all customization.

I've developed three javascript function:

1. function to handle OnChange event on lookup.


function onchange()
{
var originatingLeadValue = Xrm.Page.getAttribute("originatingleadid").getValue();
if (IsNull(originatingLeadValue) || originatingLeadValue[0].type == "4")
{
// Lookup is null or there is a Lead, need to clear hidden fields. To clear one of them will be enough, we will be check this field during onload.
Xrm.Page.getAttribute("new_guid").setValue(null);
}
else
{
// Lookup contains Contact or User, so need to store lookup properties to our hidden fields.
Xrm.Page.getAttribute("new_type").setValue(originatingLeadValue[0].type);
Xrm.Page.getAttribute("new_guid").setValue(originatingLeadValue[0].id);
Xrm.Page.getAttribute("new_name").setValue(originatingLeadValue[0].name);
}
}

2. function to handle OnSave event on Opportuniry Form.

function onsave()
{
var originatingLeadValue = Xrm.Page.getAttribute("originatingleadid").getValue();
if (!IsNull(originatingLeadValue) && originatingLeadValue[0].type != '4')
{
Xrm.Page.getAttribute("originatingleadid").setValue(null);
}
}
 3. function to handle OnLoad event on Opportunity Form.

function onload()
{
lookuptypeIcons = '/_imgs/ico_16_2.gif:/_imgs/ico_16_4.gif:/_imgs/ico_16_8.gif';
lookuptypenames = 'contact:2:Contact,lead:4:Lead,systemuser:8:User';
lookuptypes = '2,4,8';
var savedId = Xrm.Page.getAttribute("new_guid").getValue();
var savedType = Xrm.Page.getAttribute("new_type").getValue();
var savedName = Xrm.Page.getAttribute("new_name").getValue();
var savedEntityName = savedType == "8" ? "systemuser" : "contact";
document.getElementById("originatingleadid").setAttribute("lookuptypes", lookuptypes);
document.getElementById("originatingleadid").setAttribute("lookuptypenames", lookuptypenames);
document.getElementById("originatingleadid").setAttribute("lookuptypeIcons", lookuptypeIcons);
document.getElementById("originatingleadid").setAttribute("defaulttype", "4"); // default type - Lead entity
var originatingLeadValue = Xrm.Page.getAttribute("originatingleadid").getValue();
if (IsNull(originatingLeadValue) && !IsNull(savedId))
{
var value = new Array();
value[0] = new Object();
value[0].displayClass = "ms-crm-Lookup-Item";
value[0].keyValues = new Object();
value[0].values = new Object();
value[0].onclick = "openlui()";
value[0].id = savedId;
value[0].entityType = savedEntityName;
value[0].typename = savedEntityName;
value[0].name = savedName;
value[0].type = savedType;
Xrm.Page.getAttribute("originatingleadid").setValue(value);
}
}
So, now you can select from  three different entity in one lookup :-)
Custom Lookup view