Get Field Object / Value Using Field Name via Eval Function

Mindwatering Incorporated

Author: Tripp W Black

Created: 01/10/2006 at 12:58 PM

Category:
Notes Developer Tips
JavaScript

Issue:
The form has a field that contains the name of a field. You want to get the field name and then get the field itself to write a new value to it.

Solution:

var thisfrm;
var openfrm;
var openerSendTo;

// setup forms for this dialog and the form in the originating/parent window
thisfrm = document._FormName;
openerform = window.opener.document._FormName;

// setup working variables
openerSendTo = eval('openerfrm' + thisfrm.tmpSendToFld.value); // tmpSendToFld contains name of field to load

... do some code ...

// update opener SendTo field
openerSendTo.value = thisfrm.tmpSendTo.value

// optionally refresh based on new value
// window.opener._doClick('$Refresh', this, '_self', '#RefreshKW_' + openerSendTo.name)

// close this dialog
self.close();

Second Solution:
Using a hidden flag field, get from that field, the name of a second field.
Using the name get the second field. Looping through [elements] on form isn't an option.

Solution:
Use the Eval. See code sample below.

f=documents.forms[0];
var vfldnm = f.FlagFld.value;
if(vfldnm !="") {
var vfld = eval('f.' + vfldnm);
... do reset of code here ... ;
}

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