C# Starting on a certain page when using CreateDocument ()

Hello. I'm having a problem with my report concerning the CreateDocument() command. My code is as follows:

 private void lbShowHide_PreviewClick(object sender, PreviewMouseEventArgs e)
        {
            // Obtain the category's ID stored in the label's Tag property. 
            int index = (int)e.Brick.Value;

            // Determine whether the current category's details are shown. 
            bool showDetail = ShouldShowDetail(index);

            // Toggle the visibility of the category's details. 
            if (showDetail)
            {
                expandedValues.Remove(index);
                this.DetailReport1.Visible = true;
                this.DetailReport.Visible = false;
                this.GroupHeader2.Visible = true;
                this.GroupHeader1.Visible = false;
            }
            else
            {
                expandedValues.Add(index);
                this.DetailReport.Visible = true;
                this.DetailReport1.Visible = false;
                this.GroupHeader1.Visible = true;
                this.GroupHeader2.Visible = false;
            }

            // Re-create a document to apply the changes. 
            CreateDocument();
        }

If the user was on page 2 and they toggled the show/hide, the CreateDocument() re-creates the document with the changes but it starts back on page 1. Is there a way to come back to the page that the click event took place (In this case page 2)?