嗨，伙计，我已经看到了这个错误代码：执行命令定义时发生错误。有关详细信息，请参阅内部异常。在将我的文本搜索到数据库时..
private bool IsValidRegisterNewAcct(string acctname, string dispname, string email, string password)
{
var crypto = new SimpleCrypto.PBKDF2();
bool IsValid = false;
IsValidErrorMessage = "";
IsValidErrorMessageInt = 0;
string Newacctname = crypto.Compute(acctname.ToString());
//try
//{
using (var db = new MainDbContext())
{
//db.Connection.Open();
var user = db.user.FirstOrDefault(u => u.AcctNameSalt == Newacctname);
//var user = db.osoa_user.FirstOrDefault(u => u.Email == email);
if (user != null)
{
IsValid = false;
//db.Connection.Close();
IsValidErrorMessage = "Account Name already Exist!";
}
else
{
var InsertNewAcctName = db.osoa_user.CreateObject();
InsertNewAcctName.UserId = Convert.ToString( Guid.NewGuid());
InsertNewAcctName.AcctName = acctname;
InsertNewAcctName.AcctNameSalt = crypto.Compute(acctname);
InsertNewAcctName.DisplayName = dispname;
InsertNewAcctName.Email = email;
InsertNewAcctName.EmailSalt = crypto.Compute(email);
InsertNewAcctName.Password = crypto.Compute(password);
InsertNewAcctName.PasswordSalt = crypto.Salt;
InsertNewAcctName.UserLevel = 2;
db.user.AddObject(InsertNewAcctName);
db.SaveChanges();
//db.Connection.Close();
IsValid = true;
}
}
/*
}
catch (Exception e)
{
IsValidErrorMessageInt = 1;
IsValidErrorMessage = e.Message + ". Pls. contact your Administrator.";
IsValid = false;
}
*/
return IsValid;
}
并且错误指向此代码：
var user = db.user.FirstOrDefault(u => u.AcctNameSalt == Newacctname);
更新关于内部异常。我不知道是否给您正确的..我尝试使用此代码：
try
{
}
catch (Exception e)
{
IsValidErrorMessageInt = 1;
IsValidErrorMessage = e.InnerException + ". Pls. contact your Administrator.";
IsValid = false;
}
MySql.Data.MySqlClient.MySqlException (0x80004005)：MySql.Data.MySqlClient.MySqlStream.ReadPacket() 的 MySql.Data.MySqlClient.NativeDriver.GetResult 的“字段列表”中的未知列“Extent1.DateCreated”（Int32& 影响行，Int64&在 MySql.Data.MySqlClient.Driver.NextResult(Int32 statementId, Boolean force) 在 MySql.Data.MySqlClient.MySqlDataReader.NextResult( ）在 MySql.Data.MySqlClient.MySqlCommand.ExecuteReader（CommandBehavior 行为）在 MySql.Data.Entity.EFMySqlCommand.ExecuteDbDataReader（CommandBehavior 行为）在 System.Data.Common.DbCommand.ExecuteReader（CommandBehavior 行为）在 System.Data.EntityClient。 EntityCommandDefinition.ExecuteStoreCommands(EntityCommand entityCommand,命令行为行为）