Bug 192362 Propertiy Editor will not refresh when use Page->MasterPage->Simple MasterPage to go to Master Page tab [05]
Description: Propertiy Editor will not refresh when use Page->MasterPage->Simple MasterPage to go to Master Page tab. Build number: 2.2.0.v20070613-1211 Steps to reproduce: 1. Open a report. 2. Use top menu Page->Master Page->Simple Master Page. Expected result: Change to MasterPage tab and Property Editor refreshed. Actual result: Change to MasterPage tab and Property Editor did not refresh. Error log: N/A
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/util/UIUtil.java
* @param trim
	 *            specify if the string needs to be trimmed
	 * @return the string, or null for an empty string
	 */
	public static String convertToModelString( String string, boolean trim )
	{
		if ( string == null )
		{
			return null;
		}
		if ( trim )
		{
			string = string.trim( );
		}
		if ( string.length( ) == 0 )
		{
			string = null;
		}
		return string;
	}
	/**
	 * Returns the width hint for the given control.
	 * 
	 * @param wHint
	 *            the width hint
	 * @param c
	 *            the control
	 * 
	 * @return the width hint
	 */