Dynamics CRM 4.0: Copy Redarding Drop Down List value to Subject Field

Hi Experts,

I know I have to add an onchange value to the regardingobjectid field in order to get it to auto populate the Subject field for me. I am trying to get the subject field to auto populate the exact value or string which appears on the regardingobjectid field.

Example: If I choose an Account 'ABC Pty Ltd' in the regarding list of the Phone Call Activity form I would like it to write 'ABC Pty Ltd in the subject field automatically. It will save our guys having to re-write the Regarding field into the subject field.

I have tried: 'crmForm.all.subject.DataValue' = 'crmForm.all.regardingobjectid.DataValue';

but I received an error. The  complete code for the solution would be great as I don't have alot of javascript skills.

Many Thanks.
Who is Participating?
crm_infoConnect With a Mentor Commented:
Oops - try using

crmForm.all.subject.DataValue = crmForm.all.regardingobjectid.DataValue[0].name + ":";

(replacing the & with a +)
Getting a value out of a lookup field is not quite as simple as getting the value out of another field on a form.  The full code (possibly requiring some name changes) is below.
crmForm.all.subject.DataValue = crmForm.all.regardingobjectid.DataValue[0].name;

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logicsolutionsAuthor Commented:
WOW. Exactly what I needed. Just for the iceing on the cake how do I get it to add a colun (:) symbol on the end. i.e. If ABC Pty Ltd is selected from the list it will automatically put 'ABC Pty Ltd:' in the subject field.

Many Thanks CRM info.
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crmForm.all.subject.DataValue = crmForm.all.regardingobjectid.DataValue[0].name & ":";
logicsolutionsAuthor Commented:
Hi CRM info,

It says 'The Control only accepts strings or nulls as an input' after using the following:

crmForm.all.subject.DataValue = crmForm.all.regardingobjectid.DataValue[0].name & ":";

Big Thanks,
logicsolutionsAuthor Commented:
Perfect Solution. God bless your work.
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