Question

大家好，我在asp.net项目中遇到了这个问题。 “System.FormatException：无法识别的Guid格式。在System.Guid.GuidResult.SetFailure（ParseFailureKind失败，String failureMessageID，Object failureMessageFormatArgument，String failureArgumentName，Exception innerException）在System.Guid.TryParseGuid（String g，GuidStyles标志，GuidResult＆amp;结果）在System.Guid..ctor（String g） at HumanResources.cs中的UserAuthentication.HumanResources.ViewAllJobs（）：第105行“

HumanResource.cs的代码和存储过程如下第一个是HumanResource代码，第二个是存储过程

       public static List<HumanResources> ViewAllJobs()
    {
        SqlConnection conn = new       SqlConnection(ConfigurationManager.ConnectionStrings["DefaultConnection"].ConnectionString);
        SqlCommand cmd = new SqlCommand("spHumanResourcesViewAllJobs", conn);
        cmd.CommandType = CommandType.StoredProcedure;
        List<HumanResources> jobs = new List<HumanResources>();
        try
        {
            conn.Open();
            SqlDataReader rdr = cmd.ExecuteReader();
            while (rdr.Read())
            {
                HumanResources hr = new HumanResources();
                hr.jobTitle = rdr["JobTitle"].ToString();

               Guid guid = new Guid(rdr["Guid"].ToString());
                hr.guid = guid;
                jobs.Add(hr);
            }
        }
        catch (Exception ex)
        {
            throw new Exception(ex.ToString());
        }
        finally
        {
            cmd.Dispose();
            conn.Close();
        }
        return jobs;
    }


             Store Procedure:
                 CREATE PROCEDURE spHumanResourcesViewAllJobs 
         AS
           BEGIN

SET NOCOUNT ON;


SELECT Guid,JobTitle
FROM HR
WHERE Active=1

END GO

Answer 1

错误在这一行：

Guid guid = new Guid(rdr["Guid"].ToString());

您可以在代码中放置一个保护子句，以便在没有有效guid时添加hr个对象：

Guid guid;
if (Guid.TryParse(rdr["Guid"].ToString(), out guid))
{
    hr.guid = guid;
    jobs.Add(hr);
}

asp.net中无法识别的Guid格式错误？

1 个答案: