过程或函数在通知 c# 时指定了太多参数

本文关键字：太多 参数 函数 通知 过程 | 更新日期: 2023-09-27 18:37:07

SqlCommand cmmd = new SqlCommand("INSERT into Vows(MemberID, VowAmount, VowDate, Description) Values (@MemberID, @vowAmount, @vowDate, @vowDesc)", con);
SqlCommand storedprocedure = new SqlCommand("UPDATEINCOME", con);
storedprocedure.CommandType = CommandType.StoredProcedure;
storedprocedure.Parameters.Add(new SqlParameter("@IncomeDate", SqlDbType.Date)).Value = vowdateTime.Text;
SqlCommand insertStoredProcedure = new SqlCommand("InsertIncomeDate", con);
insertStoredProcedure.CommandType = CommandType.StoredProcedure;
insertStoredProcedure.Parameters.Add(new SqlParameter("@IncomeDate", SqlDbType.Date)).Value = vowdateTime.Text;
insertStoredProcedure.Parameters.Add("@IncomeDate", SqlDbType.Date).Direction = ParameterDirection.Input;
insertStoredProcedure.Parameters.Add("@IncomeDate", SqlDbType.Date).Direction = ParameterDirection.Input;

这是我的代码，我收到错误：

过程或函数指定的参数过多

cmmd.Parameters.AddWithValue("@MemberID", vowMemID.Text);
cmmd.Parameters.AddWithValue("@vowAmount", vowAmount.Text);
cmmd.Parameters.AddWithValue("@vowDate", vowdateTime.Text);
cmmd.Parameters.AddWithValue("@vowDesc", vowDescBox.Text);
cmmd.ExecuteNonQuery();                   
insertStoredProcedure.ExecuteNonQuery();  // error occurs here
insertStoredProcedure.Parameters.Clear();
storedprocedure.ExecuteNonQuery();    // and here
storedprocedure.Parameters.Clear();

这些是存储过程：

ALTER PROCEDURE [dbo].[UPDATEINCOME] 
    (@IncomeDate date, @VowAmount money) 
AS
    Declare @TitheAmount money
    Declare @OfferingAmount money
    Declare @IncomeTotal money
    IF NOT EXISTS (Select VowDate from Vows where VowDate = @IncomeDate)
    BEGIN
        set @VowAmount = '0'
    END
    ELSE 
    BEGIN
        set @VowAmount = (Select VowAmount from Vows where VowDate = @IncomeDate)
    END
    IF NOT EXISTS (Select OfferingDate from Offering where OfferingDate = @IncomeDate)
    BEGIN
        set @OfferingAmount = '0'
    END
    ELSE 
    BEGIN
       set @OfferingAmount = (Select OfferingAmount from Offering where OfferingDate = @IncomeDate)
    END
    IF NOT EXISTS (Select TitheDate from Tithe where TitheDate = @IncomeDate)
    BEGIN
        set @TitheAmount = '0'
    END
    ELSE
    BEGIN
       Set @TitheAmount = (Select TitheAmount from Tithe where TitheDate = @IncomeDate)
    END
    Set @IncomeTotal = @TitheAmount + @VowAmount + @OfferingAmount
    UPDATE IncomeReport 
    SET Amount = @IncomeTotal 
    WHERE IncDATE = @IncomeDate

UPDATEINCOME存储过程更新IncomeReport表。它将此处指定为IncomeDate的特定日期的所有金额相加，并将总计插入IncomeReports。

同时，INsertDate存储过程检查IncomeReport表是否具有"cmmd"命令打算在其下插入金额的日期。如果没有，它也插入从IncomeDate获取的日期。然后，这允许UPDATEINCOME将金额插入到日期@IncomeDate的表中。

过程或函数在通知 c# 时指定了太多参数

您正在添加两个@IncomeDate参数。不要那样做;p

storeproc.Parameters.Add(new SqlParameter("@IncomeDate", SqlDbType.Date)).Value = vowdateTime.Text;
...
storeproc.Parameters.Add("@IncomeDate", SqlDbType.Date).Direction = ParameterDirection.Input;

并且（正如斯里拉姆在评论中指出的那样）：

storedprocedure.Parameters.Add(new SqlParameter("@IncomeDate", SqlDbType.Date)).Value = vowdateTime.Text;
...
storedprocedure.Parameters.Add("@IncomeDate", SqlDbType.Date).Direction = ParameterDirection.Input;

如果需要，您可以捕获Parameters.Add的结果：

var p = storeproc.Parameters.Add(new SqlParameter("@IncomeDate", SqlDbType.Date));
p.Value = vowdateTime.Text;
p.Direction = ParameterDirection.Input;

但无论如何Input是默认设置。

不过，坦率地说，你让这很难。我在这里强烈推荐像"dapper"这样的工具：

DateTime when = ...
decimal amount = ...
connection.Execute("UPDATEINCOME",
    new { IncomeDate = when, VowAmount = amount },
    commandType: CommandType.StoredProcedure);

工作完成。

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