C#使用存储过程访问数据库

假设在数据库里面有一个名为 news 的数据表，添加一条记录的存储过程如下：

CREATE PROCEDURE AddNews   

@id int,   

@title nvarchar(200),   

@content nvarchar(4000),   

@publishtime datetime,   

@replies int

AS   

insert news (id,title,content,publishtime,replies)   values   (@id,@title,@content,@publishtime,@replies)

访问数据库的代码如下：

string source =  "server=169.254.0.1;" +  "user id=softgroup;" +  "password=1234;" +  "database=newsdb";
string source=  "server=169.254.0.1;" +    "integrated security=SSPI;" +   "database=sstinews";
SqlConnection conn = new SqlConnection(source);
conn.Open();     

SqlCommand cmd=new SqlCommand("AddNews",conn);       

cmd.CommandType = CommandType.StoredProcedure;       

cmd.Parameters.Add(new SqlParameter("@id", SqlDbType.Int, 4));       

cmd.Parameters.Add(new SqlParameter("@title", SqlDbType.NVarChar, 200));      

cmd.Parameters.Add(new SqlParameter("@content", SqlDbType.NVarChar,4000));      

cmd.Parameters.Add(new SqlParameter("@publishtime", SqlDbType.DateTime, 8));      

cmd.Parameters.Add(new SqlParameter("@replies", SqlDbType.Int, 4));      

cmd.UpdatedRowSource=UpdateRowSource.None;
cmd.Parameters["@id"].Value=art.ID;       

cmd.Parameters["@title"].Value=art.Title;       

cmd.Parameters["@content"].Value=art.Content;       

cmd.Parameters["@publishtime"].Value=art.PublishTime;       

cmd.Parameters["@replies"].Value=art.Replies;       

cmd.ExecuteNonQuery();       

conn.Close();