dialogClass not working on Agent Workspace UI Action

[CA5]

We have a UI action on Incident table which open a dialog window when button is clicked but this button is not working on Agent Workspace.

var sysId = typeof rowSysId == 'undefined' || rowSysId == null ?
gel('sys_uniqueValue').value : rowSysId;
var dialogClass = GlideModal ? GlideModal : GlideDialogWindow;
var dialog = new dialogClass('Open Dialog');
dialog.setTitle(getMessage('Please provide notes'));
dialog.setPreference('sysparm_sys_id', sysId);
dialog.setPreference('sysparm_ok_button_name', getMessage('Notes'));
dialog.render();

Please help.

[Ankur Bawiskar]

@CA5 

you need to use g_modal.showFrame()

check this

How to use UI Actions in Workspaces 

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