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我已经使用 MS-Sql 中的存储过程来插入特定页面，它工作正常，但我还需要其他页面相同的存储过程，它发现我的错误。

protected void btnsubmitt_Click(object sender, EventArgs e)
{
    ArrayList arParameters = ReturnParameter();
    DataSet dsInsertProfile = objadmin.GetGridData(arParameters,                    objconstant.sSP_INSERT_PROFILE);

    if (int.Parse(dsInsertProfile.Tables[0].Rows[0].ItemArray[0].ToString()) == 0)
    {
        pnlProfile.Visible = false;
        pnlThank.Visible = true;
        lblThank.Text = "Your profile have been successfully saved.";
    }

    else
    {
        lblThank.Text = "Your profile is not saved, please try again later.";
    }

}
public ArrayList ReturnParameter()
{
    Int64 email = Convert.ToInt64(txtemail.Text.ToString());
    ArrayList arSample = new ArrayList();
    Object[] c_email_id = new Object[3] { "@strEmailID", "varchar", email};
     arSample.Add(c_email_id);
     return arSample;
}
  public DataSet GetGridData(ArrayList dbArray, string sSpName)
    {
        DataSet dsDataSet = new DataSet();
        dsDataSet = datamanager.GetGridData(dbArray, sSpName);
        return dsDataSet;
    }
    public static DataSet GetGridData(ArrayList dbArray, string sSpName)
    {
        DataSet dsDataSet = new DataSet();
        SqlConnection cn = createConnection();
        SqlCommand cmd = new SqlCommand();
        cmd.CommandType = CommandType.StoredProcedure;
        cmd.CommandText = sSpName;

        object objPrMtrName;
        object objSqlType;
        object objPrMtrVal;
        int i;
        for (i = 0; i < dbArray.Count; i++)
        {
            objPrMtrName = ((object[])(dbArray[i]))[0];
            objSqlType = ((object[])(dbArray[i]))[1];
            objPrMtrVal = ((object[])(dbArray[i]))[2];
            cmd.Parameters.Add(objPrMtrName.ToString(), GetSqlDataType(objSqlType.ToString())).Value = objPrMtrVal;
        }
        cmd.Connection = cn;
        try
        {
            SqlDataAdapter adp = new SqlDataAdapter(cmd);
            adp.Fill(dsDataSet);
            return dsDataSet;
        }
        catch (Exception ex)
        {
            throw ex;
        }
        finally
        {
            cn.Close();
            cn.Dispose();
        }
    }

我的商店程序

ALTER Procedure [dbo].[spInsert_profile]
(  @strEmailID varchar(200)

)
 AS
BEGIN
    DECLARE @intEmail INT
SET @intEmail = (SELECT COUNT(*) FROM gdt_Users WHERE [c_email_id]=@strEmailID)        
IF @intEmail = 0
 BEGIN

       Insert into gdt_Users([c_email_id],[d_modified_dttm],[d_created_dttm])values(@strEmailID,GETDATE(),GETDATE())

 SELECT @intEmail
  END
ELSE
    BEGIN
        SELECT @intEmail

    END
END

在这里，我遇到了一个问题。它抛出了一个异常

ERROR: Failed to convert parameter value from string to Int64

所以，我添加了这段代码

Int64 email = Convert.ToInt64(txtemail.Text.ToString());

在数组列表returnparameter()方法中。然后，它抛出了那个异常

ERROR: Input string was not in correct format

我该如何解决这个问题？你能帮助我吗？

4

2 回答 2

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在您的代码中，我只能在一个地方找到 Convert.ToInt64

Int64 email = Convert.ToInt64(txtemail.Text.ToString());

您不会将有效数字传递给 Convert.ToInt64( 因为txtemail将有字符串而不是数字。您应该在 txtemail 中提供一个数字或使用正确的文本框将字符串转换为 int64。

请记住 Convert.ToInt64( 仅当字符串为数字时才将字符串转换为数字。

于 2012-11-02T07:52:21.290 回答
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您的存储过程期望varchar(200)其String长度等于 200，因此电子邮件应该是字符串而不是数字。例如 yourname@someemail.com 是一个字符串。我只是好奇，是什么让你想到的是int64。它应该是

string email = txtemail.Text;

您在此处的代码表明email应该使用字符串"varchar"

string email = txtemail.Text; //change your code to this
ArrayList arSample = new ArrayList();
Object[] c_email_id = new Object[3] { "@strEmailID", "varchar", email};
于 2012-11-02T08:48:30.950 回答