sql错误没有被抛回调用者

Question

我是这个论坛的新手,但请耐心等待.我有一个ac #Windows表单,上面有两个复选框.一个叫chkThrowError,另一个叫chkDivideError,都是未选中的.这些控件纯粹用于控制存储过程的执行.我有一个带有以下代码的命令Button:

private void cmdError_Click(object sender, EventArgs e)
    {
        int ThrowError = 0;
        int DividByZero = 0;
        if (chkThrowError.Checked)
        {
            ThrowError = 1;
        }
        if (chkDivideError.Checked)
        {
            DividByZero = 1;
        }
        try
        {
            clsBBFinances.TestError(ThrowError,DividByZero);
            MessageBox.Show("Everything is Hunkey Dorey");

        }
        catch (Exception Ex)
        {
            MessageBox.Show(Ex.Message);
        }
    }

clsBBFinances是我的Business Object,TestError例程如下:

public static void TestError(int ThrowError, int ThrowDivideError)
    {
        System.Data.SqlClient.SqlDataReader objRs = null;
        string strsql = "";
        bool Success = true;
        string ErrMsg = "";
        int intCount = 0;
        try
        {
            strsql = strsql + "Exec ";
            strsql = strsql + "TestError " + ThrowError.ToString() + " , " + ThrowDivideError.ToString();
            objRs = clsBBFinances.TheDatabase.ExecuteReadOnly(strsql);
            while (objRs.Read())
            {
                intCount++;
                object xxx = objRs[0];

            }
            Success = true;
            ErrMsg = "";
            //intCount = objRs.RecordsAffected;



        }
        catch (Exception ex)
        {
            ErrMsg = ex.Message;
            intCount = 0;
            Success = false;
            throw ex;
        }
        finally
        {
            if (objRs != null)
            {
                if (!objRs.IsClosed)
                {
                    objRs.Close();
                }
            }
        }

    }

请假设语法正确并且我有一个有效的SQL连接(sql2008(R2))

这基本上调用以下存储过程:

Create PROCEDURE TestError 
(@ThrowError int=0
 ,@ThrowDivideError int= 0
 )
AS
BEGIN

SET NOCOUNT ON;
Declare @x int
Declare @y int

Declare @ErrorNumber int
Declare @ErrorMessage varchar(2000)
Declare @ErrorSeverity int
Declare @ErrorState int
Begin Try

    If isnull(@ThrowError,0) <>   0
    Begin
            RaisError ('Forced Error Raised',16,1)
            Return
    End
    If isnull(@ThrowDivideError,0) <>0
    Begin
          set @x = 5
          Set @y =0
          Select @x/@y as z
    End

End Try
Begin catch
    Select @ErrorNumber = Error_Number()
           ,@ErrorMessage = 'Test Error ' + Error_message()
           ,@Errorseverity= Error_Severity()
           ,@ErrorState = Error_State()

    RaisError (@Errormessage, @ErrorSeverity, @ErrorState)
    --THROW 51000, @Errormessage, @ErrorState;
    Return

End Catch
Select * from   information_Schema.tables





END
GO

基本上,我提出了一个错误,取决于传入的参数..如果我的第一个参数是非零,我提出一个自定义错误,如果第一个是0和第二个非零然后我执行除以零生成我系统错误.如果Both都为零,我会从Information_Schema.tables中进行简单的选择,只是为了完成它.存储过程的目的是调用MY错误和系统错误.

当我调用该过程并且我的第一个参数设置为1时,我的自定义错误被引发,该错误通过SQl catch块并随后被捕获在c#中的catch块中.

但是,当我在第二个参数设置为1的情况下执行它时,除以零错误将被捕获在SQL catch块中,但它不会被c#中的catch块捕获.代码继续,好像没有发生错误.

我希望能够发现第二个错误..有谁知道如何.请随意粘贴上面的代码并亲自尝试.

强制错误我收到消息Test Error Forced Error Raised.

除以零我得到的信息Everything is Hunkey Dorey,并非如此.

需要帮助

Answer 1

您正在使用SqlDataReader,它一次只读取一个结果集.例外情况发生在第二个结果集中.因此,您必须使用NextResult()将阅读器移动到第二个结果集.然后你点了例外......

        var connection = new SqlConnection("Data Source=xxx;Initial Catalog=Test;User Id=xxx;Password=xxx");
        connection.Open();

        try
        {
            SqlCommand command = new SqlCommand();
            command.Connection = connection;
            command.CommandType = CommandType.StoredProcedure;
            command.CommandText = "TestError";
            command.Parameters.AddWithValue("@ThrowDivideError", 1);
            var reader = command.ExecuteReader(CommandBehavior.CloseConnection);
            reader.Read();
            reader.NextResult();
        }
        catch (Exception ex)
        {
            Console.WriteLine(ex.Message);
        }

        Console.ReadLine();