.net 实体事务不工作
我用下面的代码尝试了实体事务,但不幸的是它是 不适用于事务回滚。请帮帮我.net 实体事务不工作,.net,entity-framework,ado.net-entity-data-model,.net,Entity Framework,Ado.net Entity Data Model,我用下面的代码尝试了实体事务,但不幸的是它是 不适用于事务回滚。请帮帮我 public void AddAGMDate() { DbTransaction Transaction = null; using (EntityConnection DatabaseConnection = new EntityConnection("name=Insta_SAEntities")) { try
public void AddAGMDate()
{
DbTransaction Transaction = null;
using (EntityConnection DatabaseConnection = new EntityConnection("name=Insta_SAEntities"))
{
try
{
if (DatabaseConnection.State == ConnectionState.Closed)
DatabaseConnection.Open();//open connection
var CurrentContext = new Insta_SAEntities(DatabaseConnection);
Transaction = CurrentContext.Connection.BeginTransaction();//begin transaction
TR_AGMDatesEntityObject objAGMDates = new TR_AGMDatesEntityObject();
objAGMDates.ClientID = Convert.ToInt64(ddlClientName.SelectedValue);
objAGMDates.AGMDate = Convert.ToDateTime(txtAGMDate.Text.Trim());
objAGMDates.CreatedBy = 0;
objAGMDates.CreatedDate = Convert.ToDateTime(System.DateTime.Now);
objAGMDates.UpdatedBy = 0;
objAGMDates.UpdatedDate = Convert.ToDateTime(System.DateTime.Now);
int result = AGMDatesBL.AddAGMDate(objAGMDates);
if (true)
{
int n1 = 10, n2 = 0;
int res = n1 / n2;//Error, want transaction to rollback (for taesting)
}
Transaction.Commit();//commit transaction
if (result == 1)
{
ScriptManager.RegisterClientScriptBlock(Page, GetType(), "script", "alert('AGM Date Successfully entered ');" +
"window.location.href='ManageAGMDate.aspx';", true);
}
else if (result == 2)
{
txtAGMDate.Text = "";
ScriptManager.RegisterClientScriptBlock(Page, GetType(), "script", "alert('AGM Date Already Exist!');", true);
}
else if (result == 0)
{
ScriptManager.RegisterClientScriptBlock(Page, GetType(), "script", "alert('Unable to Add AGM Date!');" +
"window.location.href='ManageAGMDate.aspx';", true);
}
}
catch (Exception ex)
{
Transaction.Rollback();//rollback transaction
if (log.IsErrorEnabled) log.Error(string.Format("{0} ,Page URL={1}, Method Name={2} ,Error={3}", _LogMsgAdd, Request.Url.AbsoluteUri, MethodInfo.GetCurrentMethod().DeclaringType.FullName + "." + MethodInfo.GetCurrentMethod().Name, ex.Message.ToString()));
Session["error"] = ex.Message.ToString();
Response.Redirect("~/Common/Errors/ErrorPageWM.aspx?ShB=Y", false);
}
finally
{
if (DatabaseConnection != null)
{
if (DatabaseConnection.State == ConnectionState.Open)
DatabaseConnection.Close();
}
}
}你试过用**来代替吗?(这是在.NET中处理事务的常用方式)
例如
好的。。因此,如果在TransactionScope()
块中不执行Commit()
,那么它将自动执行RollBack()
;否则,您可以使用transactionScope.rollback()强制回滚代码>。。像
if (true)
{
int n1 = 10, n2 = 0;
int res = n1 / n2;
transactionScope.RollBack();
}
else
{
transactionScope.Commit();
}
嗯
****年轻玩家的陷阱**:在System.Transactions.dll
中可以找到此事务代码。。因此,请确保添加该程序集
我看不到您使用多个数据库/服务器,甚至一个表。因此,您不需要额外的事务对象。英孚负责这件事。因此,将对象添加到objectset。然后在try-catch块中执行SaveChanges()。即使您有多个实体,它也会将其全部保存或不保存。(对于EF4)我不知道如果使用存储过程会发生什么
if (true)
{
int n1 = 10, n2 = 0;
int res = n1 / n2;
transactionScope.RollBack();
}
else
{
transactionScope.Commit();
}