When set to true, the XmlReader throws an XmlException when any DTD content is encountered. Do not enable DTD processing if you are concerned about Denial of Service issues or if you are dealing with untrusted sources. If you have DTD processing enabled, you can use the XmlSecureResolver to restrict the resources that the XmlReader can access. You can also design your application so that the XML processing is memory and time constrained. For example, configure time-out limits in your ASP.NET application. This property is obsolete.
Beyond knowing the techniques, a competent welder must also be familiar with the tools of the trade, and in our Pennsylvania and Ohio-area welding schoolâs program, you certainly will be. Once you finish our welding schoolâs courses and enter the job field, you can expect to regularly encounter tools like:
The disadvantage to SMAW is that the slag must be chipped off of the weld after it cools, and can sometimes infiltrate the weld causing weakness. GMAW. GMAW stands for gas metal arc welding. This is also commonly referred to as metal inert gas welding, or MIG welding. In GMAW the electrode is a roll of wire which the welder feeds out of a âgunâ to the work piece. You control the speed of the wire, so you can make long welds without stopping to replace a rod.