本文實例講述了C#調用存儲過程的方法。分享給大家供大家參考，具體如下：
CREATE PROCEDURE [dbo].[GetNameById] @studentid varchar(8), @studentname nvarchar(50) OUTPUTASBEGIN SELECT @studentname=studentname FROM student WHERE studentid=@studentid if @@Error<>0 RETURN -1 else RETURN 0END
using (SqlConnection conn = new SqlConnection(connStr)){ try { SqlCommand cmd = new SqlCommand("GetNameById", conn); cmd.CommandType = CommandType.StoredProcedure; cmd.Parameters.AddWithValue("@studentid", "09888888"); //給輸入參數賦值 SqlParameter parOutput =cmd.Parameters.Add("@studentname", SqlDbType.NVarChar, 50); //定義輸出參數 parOutput.Direction = ParameterDirection.Output; //參數類型為Output SqlParameter parReturn = new SqlParameter("@return", SqlDbType.Int); parReturn.Direction = ParameterDirection.ReturnValue; //參數類型為ReturnValue cmd.Parameters.Add(parReturn); conn.Open(); cmd.ExecuteNonQuery(); MessageBox.Show(parOutput.Value.ToString()); //顯示輸出參數的值 MessageBox.Show(parReturn.Value.ToString()); //顯示返回值 } catch (System.Exception ex) { MessageBox.Show(ex.Message); }}Create PROCEDURE AddOrderTran @country nvarchar(100), @adds nvarchar(100), @ynames nvarchar(100), @pids nvarchar(100), @cellp nvarchar(100), @cphone nvarchar(100), @amounts nvarchar(100), @cartnumber nvarchar(100)as Declare @id int BEGIN TRANSACTION insert into Orders(Order_Country,Order_Adress,Order_UserName,Order_PostID,Cells,Order_Phone,Total_pay,CartNumber,IsPay) values (@country,@adds,@ynames,@pids,@cellp,@cphone,@amounts,@cartnumber,'0') Select @id=@@identity insert into Orders_Item (OrderNumber,ProductsID,Products_Color,Products_Price,Order_Qty,Item_Total) select @id,Carts_Item.ProductsID,Carts_Item.Products_Color,Carts_Item.Products_Price,Carts_Item.Item_Qty,Carts_Item.Total_Pay from Carts_Item where Carts_Item.CartNumber=@cartnumber delete Carts_Item where CartNumber=@cartnumber IF @@error <> 0 --發生錯誤 BEGIN ROLLBACK TRANSACTION RETURN 0 END ELSE BEGIN COMMIT TRANSACTION RETURN @id --執行成功 END
#region 執行存儲過程SqlParameter[] param = new SqlParameter[]{ new SqlParameter("@country",country), new SqlParameter("@adds",adds), new SqlParameter("@ynames",ynames), new SqlParameter("@pids", pids), new SqlParameter("@cellp",cellp), new SqlParameter("@cphone", cphone), new SqlParameter("@amounts",amounts), new SqlParameter("@cartnumber",cartnumber), new SqlParameter("@return",SqlDbType.Int)};param[8].Direction = ParameterDirection.ReturnValue;MSCL.SqlHelper.RunProcedure("AddOrderTran", param);object obj = param[8].Value; //接受返回值//string connStr = System.Configuration.ConfigurationManager.AppSettings["ConStr"].ToString();//using (SqlConnection conn = new SqlConnection(connStr))//{// conn.Open();// SqlCommand cmd = new SqlCommand("AddOrderTran", conn);// cmd.CommandType = CommandType.StoredProcedure;// SqlParameter para1 = new SqlParameter("@country", country);// para1.Direction = ParameterDirection.Input; //參數方向 為輸入參數// cmd.Parameters.Add(para1);// SqlParameter para2 = new SqlParameter("@adds", adds);// para2.Direction = ParameterDirection.Input;// cmd.Parameters.Add(para2);// SqlParameter para3 = new SqlParameter("@ynames", ynames);// para3.Direction = ParameterDirection.Input;// cmd.Parameters.Add(para3);// SqlParameter para4 = new SqlParameter("@pids", pids);// para4.Direction = ParameterDirection.Input;// cmd.Parameters.Add(para4);// SqlParameter para5 = new SqlParameter("@cellp", cellp);// para5.Direction = ParameterDirection.Input;// cmd.Parameters.Add(para5);// SqlParameter para6 = new SqlParameter("@cphone", cphone);// para6.Direction = ParameterDirection.Input;// cmd.Parameters.Add(para6);// SqlParameter para7 = new SqlParameter("@amounts", amounts);// para7.Direction = ParameterDirection.Input;// cmd.Parameters.Add(para7);// SqlParameter para8 = new SqlParameter("@cartnumber", cartnumber);// para8.Direction = ParameterDirection.Input;// cmd.Parameters.Add(para8);// SqlParameter paraReturn = new SqlParameter("@return", SqlDbType.Int);// paraReturn.Direction = ParameterDirection.ReturnValue; //參數方向 為返回參數// cmd.Parameters.Add(paraReturn);// cmd.ExecuteNonQuery();// object obj = paraReturn;// if (obj.ToString() == "0")// {// //存儲過程執行失敗// }// else// {// //成功// }//}//#endregion本文的數據庫用的是sql server自帶數據Northwind
1.只返回單一記錄集的存儲過程
SqlConnection sqlconn = new SqlConnection(conn);SqlCommand cmd = new SqlCommand();// 設置sql連接cmd.Connection = sqlconn;// 如果執行語句cmd.CommandText = "Categoriestest1";// 指定執行語句為存儲過程cmd.CommandType = CommandType.StoredProcedure;SqlDataAdapter dp = new SqlDataAdapter(cmd);DataSet ds = new DataSet();// 填充datasetdp.Fill(ds);// 以下是顯示效果GridView1.DataSource = ds;GridView1.DataBind();
存儲過程Categoriestest1
CREATE PROCEDURE Categoriestest1 AS select * from Categories GO
2. 沒有輸入輸出的存儲過程
SqlConnection sqlconn = new SqlConnection(conn);SqlCommand cmd = new SqlCommand();cmd.Connection = sqlconn;cmd.CommandText = "Categoriestest2";cmd.CommandType = CommandType.StoredProcedure;sqlconn.Open();// 執行并顯示影響行數Label1.Text = cmd.ExecuteNonQuery().ToString();sqlconn.Close();
存儲過程Categoriestest2
CREATE PROCEDURE Categoriestest2 AS insert into dbo.Categories (CategoryName,[Description],[Picture]) values ('test1','test1',null) GO3. 有返回值的存儲過程
SqlConnection sqlconn = new SqlConnection(conn);SqlCommand cmd = new SqlCommand();cmd.Connection = sqlconn;cmd.CommandText = "Categoriestest3";cmd.CommandType = CommandType.StoredProcedure;// 創建參數IDataParameter[] parameters = { new SqlParameter("rval", SqlDbType.Int,4) };// 將參數類型設置為 返回值類型parameters[0].Direction = ParameterDirection.ReturnValue;// 添加參數cmd.Parameters.Add(parameters[0]);sqlconn.Open();// 執行存儲過程并返回影響的行數Label1.Text = cmd.ExecuteNonQuery().ToString();sqlconn.Close();// 顯示影響的行數和返回值Label1.Text += "-" + parameters[0].Value.ToString() ;存儲過程Categoriestest3
CREATE PROCEDURE Categoriestest3 AS insert into dbo.Categories (CategoryName,[Description],[Picture]) values ('test1','test1',null)return @@rowcount GO4. 有輸入參數和輸出參數的存儲過程
SqlConnection sqlconn = new SqlConnection(conn);SqlCommand cmd = new SqlCommand();cmd.Connection = sqlconn;cmd.CommandText = "Categoriestest4";cmd.CommandType = CommandType.StoredProcedure;// 創建參數IDataParameter[] parameters = { new SqlParameter("@Id", SqlDbType.Int,4) , new SqlParameter("@CategoryName", SqlDbType.NVarChar,15) , };// 設置參數類型parameters[0].Direction = ParameterDirection.Output; // 設置為輸出參數parameters[1].Value = "testCategoryName";// 添加參數cmd.Parameters.Add(parameters[0]);cmd.Parameters.Add(parameters[1]);sqlconn.Open();// 執行存儲過程并返回影響的行數Label1.Text = cmd.ExecuteNonQuery().ToString();sqlconn.Close();// 顯示影響的行數和輸出參數Label1.Text += "-" + parameters[0].Value.ToString() ;存儲過程Categoriestest4
CREATE PROCEDURE Categoriestest4 @id int output, @CategoryName nvarchar(15) AS insert into dbo.Categories (CategoryName,[Description],[Picture]) values (@CategoryName,'test1',null)set @id = @@IDENTITY GO
5. 同時具有返回值、輸入參數、輸出參數的存儲過程
SqlConnection sqlconn = new SqlConnection(conn);SqlCommand cmd = new SqlCommand();cmd.Connection = sqlconn;cmd.CommandText = "Categoriestest5";cmd.CommandType = CommandType.StoredProcedure;// 創建參數IDataParameter[] parameters = { new SqlParameter("@Id", SqlDbType.Int,4) , new SqlParameter("@CategoryName", SqlDbType.NVarChar,15) , new SqlParameter("rval", SqlDbType.Int,4) };// 設置參數類型parameters[0].Direction = ParameterDirection.Output; // 設置為輸出參數parameters[1].Value = "testCategoryName"; // 給輸入參數賦值parameters[2].Direction = ParameterDirection.ReturnValue; // 設置為返回值// 添加參數cmd.Parameters.Add(parameters[0]);cmd.Parameters.Add(parameters[1]);cmd.Parameters.Add(parameters[2]);sqlconn.Open();// 執行存儲過程并返回影響的行數Label1.Text = cmd.ExecuteNonQuery().ToString();sqlconn.Close();// 顯示影響的行數，輸出參數和返回值Label1.Text += "-" + parameters[0].Value.ToString() + "-" + parameters[2].Value.ToString();存儲過程Categoriestest5
CREATE PROCEDURE Categoriestest5 @id int output, @CategoryName nvarchar(15) AS insert into dbo.Categories (CategoryName,[Description],[Picture]) values (@CategoryName,'test1',null)set @id = @@IDENTITYreturn @@rowcount GO
6. 同時返回參數和記錄集的存儲過程
SqlConnection sqlconn = new SqlConnection(conn);SqlCommand cmd = new SqlCommand();cmd.Connection = sqlconn;cmd.CommandText = "Categoriestest6";cmd.CommandType = CommandType.StoredProcedure;// 創建參數IDataParameter[] parameters = { new SqlParameter("@Id", SqlDbType.Int,4) , new SqlParameter("@CategoryName", SqlDbType.NVarChar,15) , new SqlParameter("rval", SqlDbType.Int,4) // 返回值 };// 設置參數類型parameters[0].Direction = ParameterDirection.Output; // 設置為輸出參數parameters[1].Value = "testCategoryName"; // 給輸入參數賦值parameters[2].Direction = ParameterDirection.ReturnValue; // 設置為返回值// 添加參數cmd.Parameters.Add(parameters[0]);cmd.Parameters.Add(parameters[1]);cmd.Parameters.Add(parameters[2]);SqlDataAdapter dp = new SqlDataAdapter(cmd);DataSet ds = new DataSet();// 填充datasetdp.Fill(ds);// 顯示結果集GridView1.DataSource = ds.Tables[0];GridView1.DataBind();Label1.Text = "";// 顯示輸出參數和返回值Label1.Text += parameters[0].Value.ToString() + "-" + parameters[2].Value.ToString();存儲過程Categoriestest6
CREATE PROCEDURE Categoriestest6 @id int output, @CategoryName nvarchar(15) AS insert into dbo.Categories (CategoryName,[Description],[Picture]) values (@CategoryName,'test1',null)set @id = @@IDENTITY select * from Categoriesreturn @@rowcount GO
7. 返回多個記錄集的存儲過程
SqlConnection sqlconn = new SqlConnection(conn);SqlCommand cmd = new SqlCommand();cmd.Connection = sqlconn;cmd.CommandText = "Categoriestest7";cmd.CommandType = CommandType.StoredProcedure;SqlDataAdapter dp = new SqlDataAdapter(cmd);DataSet ds = new DataSet();// 填充datasetdp.Fill(ds);// 顯示結果集1GridView1.DataSource = ds.Tables[0];GridView1.DataBind();// 顯示結果集2GridView2.DataSource = ds.Tables[1];GridView2.DataBind();
存儲過程Categoriestest7
CREATE PROCEDURE Categoriestest7 AS select * from Categories select * from Categories GO
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