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我在下面的代码中更新了system.dbnull错误。某些值在数据库中为空,并在更新时返回null。我相信我应该设置默认值为null,因此它会停止返回dbnull错误,但我不确定如何/在哪里做到这一点。来自'system.dbnull'错误的转换无效
const string sql =
@"UPDATE DoctorFacility SET PVId = @PVId,
Type = @Type,
Inactive = @Inactive,
Prefix = @Prefix,
First = @First,
Middle = @Middle,
Last = @Last,
Suffix = @Suffix,
OrgName = @OrgName,
OrgType = @OrgType,
ListName = @ListName,
Address1 = @Address1,
Address2 = @Address2,
City = @City,
State = @State,
Zip = @Zip,
Country = @Country,
Phone1 = @Phone1,
Phone1Type = @Phone1Type,
Phone2 = @Phone2,
Phone2Type = @Phone2Type,
EmailAddress = @EmailAddress,
PlaceOfServiceMId = @PlaceOfSErviceMId,
UPIN = @Upin,
SpecialtyMId = @SpecialtyMId,
DotId = @DotId,
NPI = @NPI,
CreatedBy = @CreatedBy,
LastModifiedBy = @LastModifiedBy
WHERE DotId = @DotId";
using (SqlDataAccessor dataAccessor = DataAccessorFactory.GetDataAccessor(Connection))
{
string user = UserNameFactory.GetUsername();
DaParameters parameters = new DaParameters(dataAccessor);
parameters.Add("@PVId", DateTimeHash(DateTime.Now));
parameters.Add("@Type", (int)provider.ProviderType);
parameters.Add("@Inactive", provider.Inactive);
parameters.Add("@Prefix", provider.Prefix, DbType.AnsiString, 10);
parameters.Add("@First", provider.FirstName, DbType.AnsiString, 35);
parameters.Add("@Middle", provider.MiddleName, DbType.AnsiString, 30);
parameters.Add("@Last", provider.LastName, DbType.AnsiString, 60);
parameters.Add("@Suffix", provider.Suffix, DbType.AnsiString, 20);
parameters.Add("@OrgName", provider.OrgName, DbType.AnsiString, 60);
parameters.Add("@OrgType", provider.OrgType, DbType.AnsiString, 3);
parameters.Add("@ListName", provider.ListName, DbType.AnsiString, 160);
parameters.Add("@Address1", provider.Address1, DbType.AnsiString, 50);
parameters.Add("@Address2", provider.Address2, DbType.AnsiString, 50);
parameters.Add("@City", provider.City, DbType.AnsiString, 30);
parameters.Add("@State", provider.State, DbType.AnsiString, 3);
parameters.Add("@Zip", provider.Zip, DbType.AnsiString, 10);
parameters.Add("@Country", provider.Country, DbType.AnsiString, 30);
parameters.Add("@Phone1", provider.Phone1, DbType.AnsiString, 15);
parameters.Add("@Phone1Type", provider.Phone1Type, DbType.AnsiString, 25);
parameters.Add("@Phone2", provider.Phone2, DbType.AnsiString, 15);
parameters.Add("@Phone2Type", provider.Phone2Type, DbType.AnsiString, 25);
parameters.Add("@EmailAddress", provider.EmailAddress, DbType.AnsiString, 255);
parameters.Add("@PlaceOfServiceMId", provider.PlaceOfServiceMID);
parameters.Add("@UPIN", provider.UPIN, DbType.AnsiString, 50);
parameters.Add("@SpecialtyMId", provider.SpecialtyMID);
parameters.Add("@DotId", provider.DotID, DbType.AnsiString, 15);
parameters.Add("@NPI", provider.NPI, DbType.AnsiString, 80);
parameters.Add("@CreatedBy", user, DbType.AnsiString);
parameters.Add("@LastModifiedBy", user, DbType.AnsiString);
return dataAccessor.ExecuteIdentityInsert<Provider>(sql, parameters);
}
}
你能提供你的错误的确切措辞?乍一看,我不清楚这有什么问题。 我很好奇你为什么使用一个名为ExecuteIdentityInsert的命令来执行更新。也许你对'dataAccessor'有错误的方法?该方法的名称意味着它将用一个明确的标识值将一个'Provider'插入数据库。 –
请提供即将到来的完整例外消息。并且现在在IDE中有非常好的事情 - **调试器** –
如果您觉得答案可以解决问题,请单击绿色复选标记将其标记为“接受”。这有助于将注意力集中在仍然没有答案的旧版SO上。如果我的答案没有解决您的问题,我很乐意提供帮助。 – FolksymAndrew