Create a custom Dialog Lookup Records For an Entities on button click.

One feature of Dialogs is the ability to prompt the user for a record to interact with i.e. prompt for a lookup response.

This blog fulfil the Requirement Like we have a custom Button on the Form/Ribbon and onclick of this button i need to create a lookup for an Entity which looks similar to CRM Lookup.

Here is the code which i have used to get the solution.

var url = "/_controls/lookup/lookupsingle.aspx?objecttypes=" + objectTypeCode;

var DialogOptions = new Xrm.DialogOptions();

DialogOptions.width = 500;

 DialogOptions.height = 300;

Xrm.Internal.openDialog(Mscrm.CrmUri.create(url).toString(), DialogOptions, null, null, returnDialogResponse);

objectTypeCode:- You Need to provide a objectTypecode value of the Entity on which Entity the lookup is going to be created But I Recommend to get the "objectTypecode" dynamically by passing Schema Name of the Entity because when the solution is Export/Import then this Entity objectTypeCode may differ from different Machine.

Here i am providing a method which help you to get the objectTypeCode of an Entity by passing the Schema Name of an Entity.

 function getEntityObjectTypeCodeByName(entitySchemaName) {

            try {

                var lookupService = new window.parent.RemoteCommand("LookupService",                                           "RetrieveTypeCode");

                lookupService.SetParameter("entityName", entityName);

                var result = lookupService.Execute();

                if (result.Success && typeof result.ReturnValue == "number") {

                    return result.ReturnValue;

                } else {

                    return null;

                }

            } 

          catch (e) {

                alert("Error getting ETC by Name – " + e.description);

            }

        }

Hope this will be Helpful in your CRM custom development.