.NET 调用存储过程详解

SqlConnection conn = new SqlConnection(ConStr);

SqlCommand cmd = new SqlCommand();

cmd.Connection = conn;

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();

dp.Fill(ds);

GridView1.DataSource = ds;

GridView1.DataBind();

CREATE PROCEDURE Categoriestest1

AS

select *

from  Categories

GO

SqlConnection conn = new SqlConnection(ConStr);

SqlCommand cmd = new SqlCommand();

cmd.Connection = conn ;

cmd.CommandText = "Categoriestest2";

cmd.CommandType = CommandType.StoredProcedure;

conn.Open();

Label1.Text = cmd.ExecuteNonQuery().ToString();

conn.Close();

CREATE PROCEDURE Categoriestest2  AS

insert into dbo.Categories

(CategoryName,[Description],[Picture])

values ('test1','test1',null)

GO

SqlConnection conn = new SqlConnection(ConStr);

SqlCommand cmd = new SqlCommand();

cmd.Connection = conn;

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]);

conn.Open();

// 执行存储过程并返回影响的行数

Label1.Text = cmd.ExecuteNonQuery().ToString();

conn.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 conn = new SqlConnection(ConStr);

SqlCommand cmd = new SqlCommand();

cmd.Connection = conn;

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]);

conn.Open();

// 执行存储过程并返回影响的行数

Label1.Text = cmd.ExecuteNonQuery().ToString();

conn.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 conn = new SqlConnection(ConStr);

SqlCommand cmd = new SqlCommand();

cmd.Connection = conn;

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]);

conn.Open();

// 执行存储过程并返回影响的行数

Label1.Text = cmd.ExecuteNonQuery().ToString();

conn.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 conn = new SqlConnection(ConStr);

SqlCommand cmd = new SqlCommand();

cmd.Connection = conn;

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();

dp.Fill(ds);

GridView1.DataSource = ds.Tables[0];

GridView1.DataBind();

Label1.Text = string.Empty;

// 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 conn = new SqlConnection(ConStr);

SqlCommand cmd = new SqlCommand();

cmd.Connection = conn;

cmd.CommandText = "Categoriestest7";

cmd.CommandType = CommandType.StoredProcedure;

SqlDataAdapter dp = new SqlDataAdapter(cmd);

DataSet ds = new DataSet();

dp.Fill(ds); 

GridView1.DataSource = ds.Tables[0];

GridView1.DataBind();

GridView2.DataSource = ds.Tables[1];

GridView2.DataBind();

CREATE PROCEDURE Categoriestest7

AS

select *from Categories

select *from Categories

GO