public int ExecuteUpdate <T>(SqlConnection conn, IList <T> objs, SqlTransaction tran) where T : IdentityObj
{
InitDbTypeMap();
if (objs.Count == 0)
{
return(0);
}
T t = objs[0];
SqlDataAdapter sd = new SqlDataAdapter();
CreateSql createsql = new CreateUpdateSql();
sd.InsertCommand = new SqlCommand(createsql.Create <T>(t), conn, tran);
sd.UpdateCommand = new SqlCommand(createsql.Create <T>(t), conn, tran);
DataTable dt = new DataTable();
Dictionary <TableField, PropertyInfo> fields = t.GetRelation();
foreach (var field in fields)
{
dt.Columns.Add(field.Key.Name, field.Value.PropertyType);//.Add(new SqlParameter(string.Format("@{0}", item.Key.Name), item.Value.GetValue(obj)));
//.Add(string.Format("@{0}", field.Key.Name), field.Value.PropertyType,16);
//sd.UpdateCommand.Parameters.Add(string.Format("@{0}", field.Key.Name), dbtypeMap[field.Value.PropertyType]);
//sd.InsertCommand.Parameters.Add(string.Format("@{0}", field.Key.Name), dbtypeMap[field.Value.PropertyType]);
}
dt.Columns.Add(t.GetTableKey(), typeof(object));
dt.PrimaryKey = new DataColumn[] { dt.Columns[t.GetTableKey()] };
//sd.UpdateCommand.Parameters.Add(string.Format("@{0}", t.GetTableKey()), dbtypeMap[typeof(object)]);
//sd.InsertCommand.Parameters.Add(string.Format("@{0}", t.GetTableKey()), dbtypeMap[typeof(object)]);
//sd.UpdateCommand.Parameters.Add(new SqlParameter(string.Format("@{0}", t.GetTableKey()),typeof(object)));
foreach (T obj in objs)
{
DataRow dr = dt.NewRow();
foreach (var item in fields)
{
dr[item.Key.Name] = item.Value.GetValue(obj);
}
dr[t.GetTableKey()] = obj.ID;
dt.Rows.Add(dr);
}
//sd.UpdateCommand.UpdatedRowSource = UpdateRowSource.None;
sd.Update(dt);
//using (BulkOperation bulk = new BulkOperation(conn))
//{
// bulk.Transaction = tran;
// bulk.BatchSize = 300;
// bulk.DestinationTableName = t.GetTable();
// bulk.BulkUpdate(dt);
//}
return(objs.Count);
}
public int ExecuteUpdate <T>(SqlConnection conn, T obj, SqlTransaction tran) where T : IdentityObj
{
CreateSql createsql = new CreateUpdateSql();
List <SqlParameter> sqlParams = new List <SqlParameter>();
Dictionary <TableField, PropertyInfo> fields = obj.GetRelation();
foreach (var item in fields)
{
sqlParams.Add(new SqlParameter(string.Format("@{0}", item.Key.Name), SqlNull(item.Value.GetValue(obj))));
}
SqlCommand cmd = conn.CreateCommand();
cmd = conn.CreateCommand();
cmd.Transaction = tran;
cmd.Parameters.AddRange(sqlParams.ToArray());
for (int i = 0; i < cmd.Parameters.Count; i++)
{
cmd.Parameters[i].IsNullable = true;
}
cmd.CommandType = CommandType.Text;
cmd.CommandText = createsql.Create <T>(obj);
int result = cmd.ExecuteNonQuery();
cmd.Dispose();
return(result);
}