/// <summary>
/// 批量更新
/// </summary>
/// <param name="entityList"></param>
/// <returns></returns>
public virtual bool BatchUpdate_Entitys(List <T> entityList)
{
//使用事务进行批量数据更新
using (DbTrans trans = db.BeginTrans())
{
try
{
DbBatch batch = trans.BeginBatch(entityList.Count);
entityList.ForEach(item =>
{
item.Attach();
batch.Save(item);
});
batch.Process();
trans.Commit();
return(true);
}
catch
{
trans.Rollback();
return(false);
}
}
}
internal DbTrans(DbProvider dbProvider, IsolationLevel isolationLevel)
{
this.dbConnection = dbProvider.CreateConnection();
this.dbConnection.Open();
this.dbTransaction = dbConnection.BeginTransaction(isolationLevel);
this.dbProvider = dbProvider;
this.dbBatch = new DbBatch(dbProvider, this);
}
/// <summary>
/// 以BbConnection方式实例化一个事务
/// </summary>
/// <param name="dbProvider"></param>
/// <param name="dbConnection"></param>
internal DbTrans(DbProvider dbProvider, DbConnection dbConnection)
{
this.dbConnection = dbConnection;
if (this.dbConnection.State != ConnectionState.Open)
{
this.dbConnection.Open();
}
this.dbProvider = dbProvider;
this.dbBatch = new DbBatch(dbProvider, this);
}
internal DbTrans(DbProvider dbProvider, bool useTrans)
{
if (useTrans)
{
this.dbConnection = dbProvider.CreateConnection();
this.dbConnection.Open();
this.dbTransaction = dbConnection.BeginTransaction();
}
this.dbProvider = dbProvider;
this.dbBatch = new DbBatch(dbProvider, this);
}