Can you post the code of your UI   action here.

Hi Abhinay

function create() {

var short_text = g_form.getValue("description");

var sysId = typeof rowSysId == 'undefined' ? gel('sys_uniqueValue').value : rowSysId;

var gDialog = new GlideDialogWindow("add_ci_dialogs");

gDialog.setTitle("Create New CI");

gDialog.setSize(500,400);

gDialog.setPreference('sysparm_sysID', sysId);

gDialog.setPreference('sysparm_table', "change_task");

gDialog.setPreference("short_text", short_text);

  g_form.save();

  gDialog.render();

}

whatever is entered in fields of ui page, i was adding to show in desc but then that also removes what is saved earlier.

Can i not have both of them together also?

What type of UI action is it? List choice button?

Form button

So are you trying to set the description field on this form from GlideDialogWindow? Can you elaborate?