Bug 136941 Del key has no effect in XML Source
Using BIRT 2.1RC0 build. To reproduce: Open or create a report design. Choose the XML Source tab. Select some text. Press the Del key. Expected: The selected text is deleted. Actual: Nothing happens.
UI/org.eclipse.birt.report.designer.ui.editors/src/org/eclipse/birt/report/designer/ui/editors/MultiPageReportEditor.java
}
		return isNewPageValid;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ui.forms.editor.FormEditor#editorDirtyStateChanged()
	 */
	public void editorDirtyStateChanged( )
	{
		super.editorDirtyStateChanged( );
		markPageStale( );
	}
	private void markPageStale( )
	{
		
		IFormPage currentPage = getActivePageInstance( );
		if ( !( currentPage instanceof IReportEditorPage ) )
		{
			return;
		}