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我在第一页有两个注册页面，我插入了必填字段，然后我使用用户 ID 更新了一些其他详细信息...用户 ID 是数据库中的一个身份列，所以我的更新存储了过程

  ALTER procedure [dbo].[sp_update]

(@id int,@FormFiledBy varchar (50),@MaritalStatus varchar (50),@Height varchar (50),
@Religion varchar (50),@Caste varchar (100),
 @MotherTongue varchar(50),@Education varchar (100),@Occupation varchar(50),
 @CountryofResidence varchar (50),@EducationDetails varchar (100),@AnnualIncome varchar(50),
@CountryOfBirth varchar(50),@BirthPlace varchar(50),@TimeOfBirth nchar(10),@StarSign varchar (100),
@Gothram varchar (50),@Rassi varchar(50),@HavinChildren varchar(10),@PhysicalStatus varchar (100))

as
begin

update Profile_Master
 set FormFiledBy=@FormFiledBy,MaritalStatus=@MaritalStatus,Height=@Height,
Religion=@Religion,Caste=@Caste,MotherTongue=@MotherTongue,
Education=@Education,Occupation=@Occupation,CountryofResidence=@CountryofResidence,EducationDetails=@EducationDetails,
AnnualIncome=@AnnualIncome,CountryOfBirth=@CountryOfBirth,BirthPlace=@BirthPlace,TimeOfBirth=@TimeOfBirth,
StarSign=@StarSign,Gothram=@Gothram,Rassi=@Rassi,HavinChildren=@HavinChildren,PhysicalStatus=@PhysicalStatus

where UserId=@id
return
end

在我的 DAL

 public static int update(ProfileMasterBLL profileMasterBLL)
    {
        string userid = ProfileMasterDAL.GetUserIdByEmailID(profileMasterBLL.EmailID);

        SqlConnection conn = Generic.DBConnection.OpenConnection();
        try
        {
            SqlCommand cmdd = new SqlCommand("sp_update", conn);
            cmdd.CommandType = CommandType.StoredProcedure;
            cmdd.Parameters.AddWithValue("@FormFiledBy", profileMasterBLL.FormFiledBy);
            cmdd.Parameters.AddWithValue("@MaritalStatus", profileMasterBLL.MaritalStatus);
            cmdd.Parameters.AddWithValue("@Height", profileMasterBLL.Height);
            cmdd.Parameters.AddWithValue("@Religion", profileMasterBLL.Religion);
            cmdd.Parameters.AddWithValue("@Caste", profileMasterBLL.Caste);
            cmdd.Parameters.AddWithValue("@Education", profileMasterBLL.Education);
            cmdd.Parameters.AddWithValue("@Occupation", profileMasterBLL.Occupation);
            cmdd.Parameters.AddWithValue("@CountryofResidence", profileMasterBLL.CountryofResidence);
            cmdd.Parameters.AddWithValue("@EducationDetails", profileMasterBLL.EducationDetails);
            cmdd.Parameters.AddWithValue("@CountryOfBirth", profileMasterBLL.CountryOfBirth);
            cmdd.Parameters.AddWithValue("@BirthPlace", profileMasterBLL.BirthPlace);

在我的用户界面中

protected void Button1_Click(object sender, EventArgs e)
    {
        // Get User ID from DAL
        int chk = 0;
        if (Session["EmailID"] != null)
        {
            emailID = Session["EmailID"].ToString();
        }
        ProfileMasterBLL prfbll = new ProfileMasterBLL();
        string userid = ProfileMasterDAL.GetUserIdByEmailID(emailID);

我可以在这里获取用户 ID，但在此之后

     chk = ProfileMasterDAL.update(prfbll);

在这里断点跳转到更新方法，我将 emailid 设为 null，所以我的 userid 也为 null 对此有什么帮助吗？

在我的 BAL

public class ProfileMasterBLL
{
    public int UserId { get; set; }
    public string FormFiledBy { get; set; }
    public string FirstName { get; set; }
    public string LastName { get; set; }
    public string Gender { get; set; }
    public string MaritalStatus { get; set; }
    public string HavinChildren { get; set; }
    public string EmailID { get; set; }
 }

在我的第一页中，我正在捕获会话值

  Session["EmailID"] = TextBox8.Text;
4

2 回答 2

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尝试声明字符串emailID，使其在(Session["EmailID"] != null)大括号之后仍然在范围内：

protected void Button1_Click(object sender, EventArgs e)
   {
       // Get User ID from DAL
       int chk = 0;

       string emailID = ""; 

       if (Session["EmailID"] != null)
       {
           emailID = Session["EmailID"].ToString();
       }
       ProfileMasterBLL prfbll = new ProfileMasterBLL();
       string userid = ProfileMasterDAL.GetUserIdByEmailID(emailID);
于 2012-08-13T19:15:31.843 回答
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尝试检查空字符串。此外，您的 UserId 在某些时候是一个字符串，而不是一个 int，您在哪里转换和处理转换错误。在进行数据库调用之前尝试 int.TryParse()。

于 2012-08-13T19:07:46.517 回答