我知道这个问题已被多次提出,而且我已经阅读了很多答案,但我无法弄清楚出了什么问题。已经好几个小时了。任何帮助都会受到赞赏。我只是试图在ASP页面中调用存储过程,我无法正确添加参数,获得它不在集合中的异常。
我修改了我的proc,如下所示,试图简化并解决问题。
ALTER PROCEDURE [dbo].[up_validateUserWithClinicCount]
@HTID INT = 0,
@ValidUserID INT OUTPUT,
@MultiClinicFlag INT OUTPUT
AS
DECLARE @vClinicCount INT = null
DECLARE @vUserValid INT = null
BEGIN
SET @ValidUserID = 2
SET @MultiClinicFlag = 1
END;
和C#代码
String connectionString = System.Configuration.ConfigurationManager.ConnectionStrings["PC3PaymentConnection"].ConnectionString;
using (SqlConnection connection = new SqlConnection(connectionString))
{
connection.Open();
using (SqlCommand cmd = new SqlCommand("up_validateUserWithClinicCount", connection))
{
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@HTID", htId);
SqlParameter uidOut = new SqlParameter("@ValidUserID", SqlDbType.Int);
uidOut.Size = 4;
uidOut.Direction = ParameterDirection.Output;
cmd.Parameters.Add(uidOut);
SqlParameter pMultiClinics = new SqlParameter();
pMultiClinics.ParameterName = "@MultiClinicFlag";
pMultiClinics.SqlDbType = SqlDbType.Int;
pMultiClinics.Direction = ParameterDirection.Output;
cmd.Parameters.Add(pMultiClinics);
try
{
cmd.ExecuteNonQuery();
//--> Error points to the next line, and I have tried to use int.parse rather than convert also, with the same error -- parameter not in collection
MultiClinics = Convert.ToInt16(cmd.Parameters["pMultiClinics"].Value);
PC3User = Convert.ToInt16(uidOut.Value.ToString());
}
catch (SqlException sqlEx)
{
LbMsg.ForeColor = System.Drawing.Color.Red;
LbMsg.Text = sqlEx.Message;
}
}
}
谢谢,如果你能看到我错过的东西。
答案 0 :(得分:2)
您已经拥有参数的对象引用,您无需从参数集合中获取它。另外,sql整数是32位。
MultiClinics = (int)pMultiClinics.Value;
要从参数集合中检索,请使用您提供的ParameterName:
MultiClinics = (int)cmd.Parameters["@MultiClinicFlag"].Value;