Bug 209126 DataException throws out when set highlight condition in sub-report[0302]
Description: Set highlight condition in sub-report, when "select value..." in the highlight dialog, DataException throws out. Build version:2.3.0.v20071108-0800 Steps to reproduce: 1.Get the attached report design file, which contains a sub-report. 2.Select the inner table, and then go to "highlight" tab in the property editor view to set a highlight rule. When click "select value...", DataException throws out. Error: The expression's value can not be retrieved. An error happened in data type conversion. Can not convert the value of org.eclipse.birt.data.engine.script.DataExceptionMocker@79c17b to Integer type.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/HighlightRuleBuilder.java
}
					if ( isLinethroughChanged )
					{
						handle.setTextLineThrough( lingthroughValue );
					}
				}
			}
		}
		catch ( Exception e )
		{
			WidgetUtil.processError( getShell( ), e );
		}
		super.okPressed( );
	}
	private void editValue( Object control )
	{
		String initValue = null;
		if ( control instanceof Text )
		{
			initValue = ( (Text) control ).getText( );
		}
		else if ( control instanceof Combo )
		{
			initValue = ( (Combo) control ).getText( );
		}
		else if ( control instanceof ExpressionValue )
		{
			initValue = ( (ExpressionValue) control ).getText( );
		}
		ExpressionBuilder expressionBuilder = new ExpressionBuilder( getShell( ),