類型「System.ArgumentException」的例外，在System.Data.dll中發生，但在用戶代碼中沒有處理

它進一步指出，過程或函數spAddOrganization預計但未提供類型「System.ArgumentException」的例外，在System.Data.dll中發生，但在用戶代碼中沒有處理

IEnumerable<OrganizationalDetails> OrganizationalDetails 
{ 
    get 
    { 
     string connectionString = ConfigurationManager.ConnectionStrings["OnlineDBContext"].ToString(); 
     List<OrganizationalDetails> organization = new List<OrganizationalDetails>(); 

     using (SqlConnection con = new SqlConnection(connectionString)) 
     { 
      SqlCommand cmd = new SqlCommand("spAddOrganization", con); 
      cmd.CommandType = CommandType.StoredProcedure;` 
      con.Open(); 

      SqlDataReader myreader = cmd.ExecuteReader(); 

      while(myreader.Read()) 
      { 
       OrganizationalDetails organize = new OrganizationalDetails(); 
       organize.Organizational_Id = Convert.ToInt32(myreader["Organizational_Id"].ToString()); 
       organize.Organizational_Number = myreader["Organizational_Number"].ToString(); 
       organize.Location = myreader["Location"].ToString(); 
       organize.Organization_Address = myreader["Organizational_Address"].ToString(); 
       organize.TelephoneNo_Org = myreader["TelephoneNo_Org"].ToString(); 
       organize.Organizational_Name = myreader["Organizational_Name"].ToString();`ganizational_Name = myreader["Organizational_Name"].ToString();_Name = myreader["Organizational_Name"].ToString(); 
       organize.Administrator_Name = myreader["Administrator_Name"].ToString(); 
       organization.Add(organize); 
      } 
     } 
     return organization; 
    } 
}

Organizational_Number參數所存儲的程序如下：

ALTER PROCEDURE [dbo].[spAddOrganization] 
    @Organizational_Number nvarchar(50), 
    @Location nvarchar(50), 
    @Organizational_Address nvarchar(50), 
    @TelephoneNo_Org nvarchar(50), 
    @Organizational_Name nvarchar(50), 
    @Administrator_Name nvarchar(50) 
AS 
BEGIN 
    INSERT INTO Organization_Details(Organizational_Number,Location,Organizational_Address,TelephoneNo_Org,Organizational_Name,Administrator_Name) 
    VALUES(@Organizational_Number,@Location,@Organizational_Address,@TelephoneNo_Org,@Organizational_Name,@Administrator_Name) 
END

一切似乎都很完美。我嘗試了谷歌搜索，嘗試但發現不是很容易理解的答案。

來源

2017-02-06 Dexter

的錯誤信息是相當自我explainatory - AddOrganization是插入值，所以它的期待值，「@ Organizational_Number，@位置，@ Organizational_Address，@ TelephoneNo_Org，@ Organizational_Name，@ Administrator_Name「你還沒有提供任何..實際上你似乎認爲它會選擇的東西 - 你必須選擇錯誤的存儲過程 – BugFinder

請格式化您的代碼片斷以可讀的方式和閱讀[如何創建一個最小，完整和可驗證的示例]（http://stackoverflow.com/help/mcve）。 –

您的存儲過程需要參數（您沒有提供）並將它們插入到表中。你的代碼試圖打開一個閱讀器，這意味着你的代碼期望用一個select語句調用一個過程。這有點脫節。 – Theo

因爲你的存儲Procerure有插入條款，你需要傳遞的參數是這樣的：

string connectionString = ConfigurationManager.ConnectionStrings["OnlineDBContext"].ToString(); 

using (SqlConnection con = new SqlConnection(connectionString)) 
{ 

    SqlCommand cmd = new SqlCommand("spAddOrganization", con); 
    con.Open(); 
    cmd.CommandType = CommandType.StoredProcedure; 

    SqlParameter[] parameters = new SqlParameter[] 
    { 
     new SqlParameter("@Organizational_Number", organize.Organizational_Number), 
     new SqlParameter("@Location", organize.Location), 
     new SqlParameter("@Organizational_Address", organize.Organization_Address), 
     new SqlParameter("@TelephoneNo_Org", organize.TelephoneNo_Org), 
     new SqlParameter("@Organizational_Name", organize.Organizational_Name), 
     new SqlParameter("@Administrator_Name", organize.Administrator_Name) 
    }; 
    cmd.Parameters.AddRange(parameters); 
    int retorno = cmd.ExecuteNonQuery(); 
}

來源

2017-02-06 15:13:42

類型「System.ArgumentException」的例外，在System.Data.dll中發生，但在用戶代碼中沒有處理

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