.net调用存储过程详细介绍

 string cOnn= ConfigurationManager.ConnectionStrings["NorthwindConnectionString"].ConnectionString;
 

    
       
   
 

      SqlConnection sqlcOnn= new SqlConnection(conn);
        SqlCommand cmd = new SqlCommand();
        // 设置sql连接
        cmd.COnnection= sqlconn;
        // 如果执行语句
        cmd.CommandText = "Categoriestest1";
        // 指定执行语句为存储过程
        cmd.CommandType = CommandType.StoredProcedure;

        SqlDataAdapter dp = new SqlDataAdapter(cmd);
        DataSet ds = new DataSet();
        // 填充dataset
        dp.Fill(ds);
        // 以下是显示效果
        GridView1.DataSource = ds;
        GridView1.DataBind();
 

 CREATE PROCEDURE Categoriestest1
AS
select *
from  Categories
GO
 

       SqlConnection sqlcOnn= new SqlConnection(conn);
        SqlCommand cmd = new SqlCommand();

        cmd.COnnection= sqlconn;
        cmd.CommandText = "Categoriestest2";
        cmd.CommandType = CommandType.StoredProcedure;
        sqlconn.Open();
        // 执行并显示影响行数
        Label1.Text = cmd.ExecuteNonQuery().ToString();
        sqlconn.Close();

CREATE PROCEDURE Categoriestest2  AS
insert into dbo.Categories
(CategoryName,[Description],[Picture])
values ('test1','test1',null)
GO

SqlConnection sqlcOnn= new SqlConnection(conn);
        SqlCommand cmd = new SqlCommand();
        cmd.COnnection= sqlconn;
        cmd.CommandText = "Categoriestest3";
        cmd.CommandType = CommandType.StoredProcedure;
        // 创建参数
        IDataParameter[] parameters = {
                new SqlParameter("rval", SqlDbType.Int,4)
            };
        // 将参数类型设置为 返回值类型
        parameters[0].Direction = ParameterDirection.ReturnValue;
        // 添加参数
        cmd.Parameters.Add(parameters[0]);

        sqlconn.Open();
        // 执行存储过程并返回影响的行数
        Label1.Text = cmd.ExecuteNonQuery().ToString();
        sqlconn.Close();
        // 显示影响的行数和返回值
        Label1.Text += "-" + parameters[0].Value.ToString() ;

CREATE PROCEDURE Categoriestest3
AS
insert into dbo.Categories
(CategoryName,[Description],[Picture])
values ('test1','test1',null)
return @@rowcount
GO

SqlConnection sqlcOnn= new SqlConnection(conn);
        SqlCommand cmd = new SqlCommand();
        cmd.COnnection= sqlconn;
        cmd.CommandText = "Categoriestest4";
        cmd.CommandType = CommandType.StoredProcedure;
        // 创建参数
        IDataParameter[] parameters = {
                new SqlParameter("@Id", SqlDbType.Int,4) ,
                new SqlParameter("@CategoryName", SqlDbType.NVarChar,15) ,
            };
        // 设置参数类型
        parameters[0].Direction = ParameterDirection.Output;  // 设置为输出参数
        parameters[1].Value = "testCategoryName";
        // 添加参数
        cmd.Parameters.Add(parameters[0]);
        cmd.Parameters.Add(parameters[1]);

        sqlconn.Open();
        // 执行存储过程并返回影响的行数
        Label1.Text = cmd.ExecuteNonQuery().ToString();
        sqlconn.Close();
        // 显示影响的行数和输出参数
        Label1.Text += "-" + parameters[0].Value.ToString() ;

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

SqlConnection sqlcOnn= new SqlConnection(conn);
        SqlCommand cmd = new SqlCommand();
        cmd.COnnection= sqlconn;
        cmd.CommandText = "Categoriestest5";
        cmd.CommandType = CommandType.StoredProcedure;
        // 创建参数
        IDataParameter[] parameters = {
                new SqlParameter("@Id", SqlDbType.Int,4) ,
                new SqlParameter("@CategoryName", SqlDbType.NVarChar,15) ,
                new SqlParameter("rval", SqlDbType.Int,4)
            };
        // 设置参数类型
        parameters[0].Direction = ParameterDirection.Output;       // 设置为输出参数
        parameters[1].Value = "testCategoryName";                  // 给输入参数赋值
        parameters[2].Direction = ParameterDirection.ReturnValue;  // 设置为返回值
        // 添加参数
        cmd.Parameters.Add(parameters[0]);
        cmd.Parameters.Add(parameters[1]);
        cmd.Parameters.Add(parameters[2]);

        sqlconn.Open();
        // 执行存储过程并返回影响的行数
        Label1.Text = cmd.ExecuteNonQuery().ToString();
        sqlconn.Close();
        // 显示影响的行数，输出参数和返回值
        Label1.Text += "-" + parameters[0].Value.ToString() + "-" + parameters[2].Value.ToString();

CREATE PROCEDURE Categoriestest5
@id int output,
@CategoryName nvarchar(15)
AS
insert into dbo.Categories
(CategoryName,[Description],[Picture])
values (@CategoryName,'test1',null)
set  @id = @@IDENTITY
return @@rowcount
GO

        SqlConnection sqlcOnn= new SqlConnection(conn);
        SqlCommand cmd = new SqlCommand();
        cmd.COnnection= sqlconn;
        cmd.CommandText = "Categoriestest6";
        cmd.CommandType = CommandType.StoredProcedure;
        // 创建参数
        IDataParameter[] parameters = {
                new SqlParameter("@Id", SqlDbType.Int,4) ,
                new SqlParameter("@CategoryName", SqlDbType.NVarChar,15) ,
                new SqlParameter("rval", SqlDbType.Int,4)                   // 返回值
            };
        // 设置参数类型
        parameters[0].Direction = ParameterDirection.Output;        // 设置为输出参数
        parameters[1].Value = "testCategoryName";                   // 给输入参数赋值
        parameters[2].Direction = ParameterDirection.ReturnValue;   // 设置为返回值
        // 添加参数
        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dataset
        dp.Fill(ds);
        // 显示结果集
        GridView1.DataSource = ds.Tables[0];
        GridView1.DataBind();

        Label1.Text = "";
        // 显示输出参数和返回值
        Label1.Text +=  parameters[0].Value.ToString() + "-" + parameters[2].Value.ToString();

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 Categories
return @@rowcount
GO

      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dataset
        dp.Fill(ds);
        // 显示结果集1
        GridView1.DataSource = ds.Tables[0];
        GridView1.DataBind();
        // 显示结果集2
        GridView2.DataSource = ds.Tables[1];
        GridView2.DataBind();
 

 CREATE PROCEDURE Categoriestest7
AS
select * from Categories
select * from Categories
GO