Bug 130068 [Regression]Report Parameter window doesn't pop up when preview a report with parameter.
Description: Report Parameter window doesn't pop up when preview a report with parameter. Steps to reproduce: 1. New a report parameter without default value. 2. Drag it to Layout. 3. Click Preview in Layout. Expected result: Window pops up for value input. Actual result: Some required parameter values are not set or set to incompatible data type.
UI/org.eclipse.birt.report.designer.ui.preview/src/org/eclipse/birt/report/designer/ui/preview/editors/ReportPreviewFormPage.java
/*************************************************************************************
 * Copyright (c) 2004 Actuate Corporation and others.
 * All rights reserved. This program and the accompanying materials 
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors:
 *     Actuate Corporation - Initial implementation.
 ************************************************************************************/
package org.eclipse.birt.report.designer.ui.preview.editors;
import org.eclipse.birt.report.designer.ui.editors.IReportEditorPage;
import org.eclipse.birt.report.designer.ui.editors.IReportProvider;
import org.eclipse.gef.ui.actions.ActionRegistry;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.ui.IEditorInput;
import org.eclipse.ui.forms.IManagedForm;
import org.eclipse.ui.forms.editor.FormEditor;
/**
 * Preview page.
 */
public class ReportPreviewFormPage extends ReportPreviewEditor implements