Confusion over Static class and Static method!
Hi Group,
I have a little confusion over the use of static class in C#.
I have a static method in my static class. This method reads an xml and returns a collection of objects.
This collection of objects can be different for different users.
This method uses some non-static variables which are local to this method.
Following is my static class:
public static class ResponseXmlParser
{
public static Hashtable GetProductInfoList()
{
XmlTextReader xmlTextReader;
bool isScheduleElement = false;
bool isResultItem = false;
ProductInfo productInfo= new ProductInfo();
Hashtable productInfoList = new Hashtable();
try
{
//Create an instance of the XMLTextReader.
//MaterialSearchResponse.xml is different for different users.
xmlTextReader = new XmlTextReader("MaterialSearchResponse.xml");
// Process the XML file.
while (xmlTextReader.Read())
{
if(productInfo == null)
productInfo = new ProductInfo();
if (xmlTextReader.NodeType == XmlNodeType.Element)
{
if (xmlTextReader.Name == "CHECK_SCHEDULE_EX")
isScheduleElement = true;
if (xmlTextReader.Name.Equals("CHECK_ITEM_OUT"))
isResultItem = true;
if (!isScheduleElement && isResultItem)
{
switch (xmlTextReader.Name)
{
case "ITM_NUMBER":
if (!xmlTextReader.IsEmptyElement)
productInfo.ItemNumber = xmlTextReader.ReadElementContentAsInt();
break;
...
...
..
case "REQ_QTY":
if (!xmlTextReader.IsEmptyElement)
productInfo.RequestedQuantity = xmlTextReader.ReadElementContentAsInt();
if (productInfo != null)
productInfoList.Add(productInfo.IPC, productInfo);
productInfo = null;
break;
}
}
}
}//END OF WHILE
}
catch (XmlException ex){}
catch (Exception ex){}
finally
{
if (xmlTextReader!= null)
xmlTextReader.Close();
}
return productInfoList;
}
}
My doubts are:
1. Does a non-static local variable of static methods works fine in multi-user environment (Web Application) where method is expected to return different results?
2. Is there any other performance a benefit using the static methods except the non-requirement of creation of object of class in which method resides?
Thanks,
Anup Daware