Microsoft Dynamics CRM Javascript Access to Form Elements

Here's how to access each control on your forms using Javascript. Using this information you can add very useful functionality to CRM's front end.

There are a couple of ways to do this, you can choose which ever suits your situation best...

Currently displayed entitie's GUID:

        crmForm.ObjectId

To access a control on the form:

    crmForm.all.[attributename]

    // OR

    document.getElementById("[attributename]")

Hide/show attribute(set to visible or invisible):

    //Hide it

    crmForm.all.[attributename].style.display = "none";

    //Show it

    crmForm.all.[attributename].style.display = "inline";

Enable/disable attribute:

   //Disable

   crmForm.all.[attributename].Disabled = true;

   //Enable

   crmForm.all.[attributename].Disabled = false;

Does control/attribute contain any data?

   if (crmForm.all.[attributename] != null)

       //Contains some data

Control's value(this is the current on screen value. ie, may not have been saved yet):

   crmForm.all.[attributename].DataValue

   // OR

   crmForm.all.[attributename].value

   // OR if its a checkbox

   crmForm.all.[attributename].Checked = [true false=""]

   // OR if its a lookup

     //Descriptive name for the selected item

     crmForm.all.[attributename].DataValue.name

     //GUID value of the selected item

     crmForm.all.[attributename].DataValue.id

     //Type of entity selected in the lookup(1=Account, 2=Contact...)

     crmForm.all.[attributename].DataValue.type

     //Descriptive name for the selected entity type

     crmForm.all.[attributename].DataValue.typename