Hi How can I use transaction with typed dataset? Let's say I've a record table and record detail table and I've to save one in the record table and all the details in the record detail table. How can I use ? I found transaction can be used with untyped dataset but I don't see it with typed dataset. Can someone tell me how I should do?
Kevin
There's a nice article (and code) at CodeProject on how to extend the typed dataset to enable transactions without having them get promoted to a distributed transaction when using the TransactionScope.
Summary: Use the transaction scope with a method added on the partial class to modify the underlying SqlCommand objects to take part in the same transaction.
using (SqlTransaction transaction = connection.BeginTransaction())
{
// These methods will update all relevant command objects’ transaction property
adapter1.EnlistTransaction(transaction);
adapter2.EnlistTransaction(transaction);
adapter1.Update(table1);
adapter2.Update(table2);
transaction.Commit();
}
Code example for adapter from reference:
public partial class [TableAdapterName]
{
public void EnlistTransaction(System.Data.SqlClient.SqlTransaction transaction)
{
System.Data.SqlClient.SqlTransaction _transaction;
if (this._transaction != null)
{
throw new System.InvalidOperationException
("This adapter has already been enlisted in a transaction");
}
else
{
this._transaction = transaction;
Adapter.UpdateCommand.Transaction = _transaction;
Adapter.InsertCommand.Transaction = _transaction;
Adapter.DeleteCommand.Transaction = _transaction;
}
}
}
I don't recommend using transactionscope, since it's difficult for handling code refactor since you can wrap a huge amount of code, this is how I recommend:
This answer it's different because it's adding the transaction for all commands and not only for persistence
Extend your partial Adapter class:
partial class YourTableAdapter
{
public SqlTransaction Transaction
{
set
{
if (this.CommandCollection != null)
{
for (int i = 0; i < this.CommandCollection.Length; i++)
{
this.CommandCollection[i].Connection = value.Connection;
this.CommandCollection[i].Transaction = value;
}
}
this.Connection = value.Connection;
this._adapter.AplicaTransaction(value);
}
}
}
Extension method:
namespace System
{
public static class DALSqlExtension
{
public static void AplicaTransaction(this SqlDataAdapter _adapter, SqlTransaction transaction)
{
if (_adapter == null)
{
return;
}
if (_adapter.InsertCommand != null)
{
_adapter.InsertCommand.Transaction = transaction;
_adapter.InsertCommand.Connection = transaction.Connection;
}
if (_adapter.UpdateCommand != null)
{
_adapter.UpdateCommand.Transaction = transaction;
_adapter.UpdateCommand.Connection = transaction.Connection;
}
if (_adapter.DeleteCommand != null)
{
_adapter.DeleteCommand.Transaction = transaction;
_adapter.DeleteCommand.Connection = transaction.Connection;
}
if (_adapter.SelectCommand != null)
{
_adapter.SelectCommand.Transaction = transaction;
_adapter.SelectCommand.Connection = transaction.Connection;
}
}
}
}
You can use TransactionScope and call both the updates within the scope of the TransactionScope object.
Please see the example provided in this link. TransactionScope .
An more close example is provided here .
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