带有输入和输出参数的存储过程，以及select语句，不绑定到datagridview

Question

这是我的存储过程：

    CREATE PROCEDURE [dbo].[GetDailyRecon]
    @DT DATE,
    @ReviewedBy VARCHAR(20) OUTPUT,
    @ApprovedBy VARCHAR(20) OUTPUT

AS
BEGIN

SET NOCOUNT ON;

SELECT
    'Account 23851 Balance' AS 'Description', AccountBalance AS 'Amount'

    FROM
        ReconRecords

    WHERE RecordDate = @DT

UNION ALL

SELECT
    'Total Outstanding' AS 'Description', Outstanding

    FROM
        ReconRecords

    WHERE RecordDate = @DT

UNION ALL

SELECT
    'Future Dated Outstanding' AS 'Description', FutureOutstanding

    FROM
        ReconRecords

    WHERE RecordDate = @DT

UNION ALL

SELECT
    'Pension Check Run Prior To Deposit' AS 'Description', -PensionRun

    FROM
        ReconRecords

    WHERE RecordDate = @DT

UNION ALL

SELECT
    'Flex Batch' AS 'Description', -FlexBatch

    FROM
        ReconRecords

    WHERE RecordDate = @DT

UNION ALL

SELECT
    'TRS' AS 'Description', TRS

    FROM
        ReconRecords

    WHERE RecordDate = @DT

UNION ALL

SELECT
    'Flex Pay Percentage Checks' AS 'Description', FlexPercentage

    FROM
        ReconRecords

    WHERE RecordDate = @DT

UNION ALL

SELECT
    Description, Amount

    FROM
        ManualRecords

    WHERE
        RecordDate = @DT

UNION ALL

SELECT
    'Total' AS 'Description',
    (SELECT AccountBalance + 
            Outstanding + 
            FutureOutstanding +  
            PensionRun + 
            FlexBatch + 
            TRS +
            FlexPercentage

        FROM ReconRecords WHERE RecordDate = @DT) +

    (SELECT ISNULL(SUM(Amount),0) FROM ManualRecords WHERE RecordDate = @DT) AS 'Amount'

SELECT @ReviewedBy = ReviewedBy FROM ReconRecords WHERE RecordDate = @DT
SELECT @ApprovedBy = ApprovedBy FROM ReconRecords WHERE RecordDate = @DT

END



GO

这是我的c＃代码

private void Form1_Load(object sender, EventArgs e)
    {
        string connStr = "Data Source=servername;Initial Catalog=CheckRecon;Integrated Security=True";
        SqlConnection conn = new SqlConnection(connStr);
        SqlCommand cmd = new SqlCommand("GetDailyRecon", conn);
        cmd.CommandType = CommandType.StoredProcedure;
        SqlParameter DT = cmd.Parameters.Add("@DT", SqlDbType.Date);
        SqlParameter ReviewedBy = cmd.Parameters.Add("@ReviewedBy", SqlDbType.VarChar);
        SqlParameter ApprovedBy = cmd.Parameters.Add("@ApprovedBy", SqlDbType.VarChar);
        DT.Direction = ParameterDirection.Input;
        ReviewedBy.Direction = ParameterDirection.Output;
        ApprovedBy.Direction = ParameterDirection.Output;
        DT.Value = new DateTime(2015, 7, 17);
        SqlDataAdapter da = new SqlDataAdapter(cmd);
        DataTable dt = new DataTable();
        da.Fill(dt);
        dataGridView1.DataSource = dt;



    }

当我运行应用程序时，表单打开并且datagridview为空，不会抛出任何错误。我希望datagridview用过程中的select语句的结果填充，在表单上将有单独的文本框，用于显示reviewby和approvedby输出参数。提前感谢您提供的任何帮助。