void setContext(ITypeDescriptorContext context)
{
_metaConnection = context.Instance as MetaConnection;
_metaEnum = context.Instance as MetaEnum;
_metaTable = context.Instance as MetaTable;
_metaColumn = context.Instance as MetaColumn;
_metaJoin = context.Instance as MetaJoin;
_reportView = context.Instance as ReportView;
_reportOutput = context.Instance as ReportOutput;
_reportSchedule = context.Instance as ReportSchedule;
_parameter = context.Instance as Parameter;
_security = context.Instance as SealSecurity;
_emailDevice = context.Instance as OutputEmailDevice;
}