How to mass insert/update in linq to sql?
- by chobo2
Hi
How can I do these 2 scenarios.
Currently I am doing something like this
public class Repository
{
private LinqtoSqlContext dbcontext = new LinqtoSqlContext();
public void Update()
{
// find record
// update record
// save record ( dbcontext.submitChanges()
}
public void Insert()
{
// make a database table object ( ie ProductTable t = new ProductTable() { productname
="something"}
// insert record ( dbcontext.ProductTable.insertOnSubmit())
// dbcontext.submitChanges();
}
}
So now I am trying to load an XML file what has tons of records. First I validate the records one at a time. I then want to insert them into the database but instead of doing submitChanges() after each record I want to do a mass submit at the end.
So I have something like this
public class Repository
{
private LinqtoSqlContext dbcontext = new LinqtoSqlContext();
public void Update()
{
// find record
// update record
}
public void Insert()
{
// make a database table object ( ie ProductTable t = new ProductTable() { productname
="something"}
// insert record ( dbcontext.ProductTable.insertOnSubmit())
}
public void SaveToDb()
{
dbcontext.submitChanges();
}
}
Then in my service layer I would do like
for(int i = 0; i < 100; i++)
{
validate();
if(valid == true)
{
update();
insert()
}
}
SaveToDb();
So pretend my for loop is has a count for all the record found in the xml file. I first validate it. If valid then I have to update a table before I insert the record. I then insert the record.
After that I want to save everything in one go.
I am not sure if I can do a mass save when updating of if that has to be after every time or what.
But I thought it would work for sure for the insert one.
Nothing seems to crash and I am not sure how to check if the records are being added to the dbcontext.
