Proper use of constructor ?

Seems like this is the purpose of the data constructor related to the structure.  Is there a way to call the constructor to clear out the existing record? Can I dispose of the current variable and use the NEW to create a new record each time.  Seems like a lot of code to keep clearing out each variable.  It also requires me to modify my code in two places when I add a field.  I am importing 20 tables, each having up to 30 fields.  I do not want to abuse memory resources and would like to optimize my code.

 

Thanks in advance for any suggestions.  My pseudo code is below, but it lost the indents. I left some out for brevity, but you can get the general idea.

private void importServiceCallTypeOfWorkMaster(string filename)

{
string lastID = null;
string nodename = null;
XmlTextReader reader = new XmlTextReader(filename);
ServiceCallTypeOfWorkMaster sctwm = new ServiceCallTypeOfWorkMaster();

while (reader.Read())
{
switch (reader.NodeType)
{
case XmlNodeType.Element:
nodename = reader.Name;
break;
case XmlNodeType.Text:
switch (nodename)
{
case "TypeOfWorkID":
writeRecordtoSQL(sctwm);

case "TypeOfWorkCode":
sctwm.TypeOfWorkCode = reader.Value;
break;
case "TypeOfWorkDescription":
sctwm.TypeOfWorkDescription = reader.Value;
break;

}

break;

case XmlNodeType.EndElement:
nodename = null;
break;

}

}

}

public class ServiceCallTypeOfWorkMaster
{
private string typeOfWorkID;
private string typeOfWorkCode;
private string typeOfWorkDescription;

public ServiceCallTypeOfWorkMaster()

{
typeOfWorkID = "";
typeOfWorkCode = "";
typeOfWorkDescription = "";
}

public string TypeOfWorkID
{ get

{
return typeOfWorkID;
}

set
{
typeOfWorkID = value;
}
}

public string TypeOfWorkCode
{
get
{
return typeOfWorkCode;
}
set
{
typeOfWorkCode = value;
}

}

public string TypeOfWorkDescription
{
get
{
return typeOfWorkDescription;
}
set
{
typeOfWorkDescription = value;
}
}
}