Show objects and models in dialog

Maybe this could help you:

Dialogs.showDialog(new myDialog(), Constants.DIALOG_TYPE_ACTION, "Just a test")

function myDialog(){
   
    this.getPages = function()
    {
        var iDialogTemplate1 = Dialogs.createNewDialogTemplate(600, 300, "First page");
       
        iDialogTemplate1.PushButton(15, 20, 150, 30, "Select Models", "btn1");
        iDialogTemplate1.PushButton(15, 80, 150, 30, "Select Objects", "btn2");
       
        return [iDialogTemplate1];
    }
   
   this.btn1_pressed = function(){
       var userModel = Context.BrowseArisItems("Select an model", "Select an model to edit (...) .", Constants.CID_MODEL);  
        // Do Something
   }
   
   this.btn2_pressed = function(){
        var userObject = Context.BrowseArisItems("Select an object", "Select an object to edit (...) .", Constants.CID_OBJDEF);   
        
        // Do Something
    }  
}

If the user should only see one database you can use this code:

var userModel = Context.BrowseArisItems("Select a model", "Select a model for XYZ", Context.getSelectedDatabases()[0], Constants.CID_MODEL);

I hope this is what you looking for..