EntitySpace 这个是很早期的ORM框架，最近发现这个破解的也都不能用了。有谁知道能用的，联系我。
1. where带几个条件的
query.Where(query.ProductTempStatus.Equal((int)tempStatus) | query.ProductStatus.Equal((int)status));
query.Where(query.ProductTempStatus.Equal((int)tempStatus) && query.ProductStatus.Equal((int)status));
2. 批量更新的：
public bool UpdateProductTempStatusBatch(List<int> productIds,ProductTempStatus status)
{
try
{
AwhProducts product = new AwhProducts();
AwhProductsCollection products = new AwhProductsCollection();
AwhProductsQuery query = new AwhProductsQuery();
query.Where(query.ProductID.In(productIds));
products.Load(query);
foreach (var item in products)
{
item.ProductTempStatus = (int)status;
}
products.Save();
return true;
}
catch (Exception ex)
{
return false;
}
}
3. 使用事务
//MYSQL的事务语句无效
using (esTransactionScope scope = new esTransactionScope())
{
...
...
product.Save();
brand.Save();
scope.Complete();
}
其它事务的用法：
using (esTransactionScope noTrans = new esTransactionScope(esTransactionScopeOption.Suppress))
using (esTransactionScope rootTrans2 = new esTransactionScope(esTransactionScopeOption.RequiresNew))
查看这里：
http://www.entityspaces.net/blog/CategoryView,category,Transactions.aspx
4.人工执行SQL语句
esUtility util = new esUtility();
int count = (int)util.ExecuteScalar(esQueryType.Text, "Select Count(*) From Employees");