当用户注册表单的时候,需要返回用户注册后的ID,这时候用存储过程的Output很方便。
后台代码:
public partial class _Default : System.Web.UI.Page
{
string SqlConnectionString = "Server=(local);Initial Catalog=dbtest;Integrated Security=True";
protected void Page_Load(object sender, EventArgs e)
{
}
protected void btnSubmit_Click(object sender, EventArgs e)
{
SqlConnection con = new SqlConnection(SqlConnectionString);
using (SqlCommand com = new SqlCommand())
{
try
{
con.Open();
com.Connection = con;
com.CommandType = CommandType.StoredProcedure;
com.CommandText = "add_users";
com.Parameters.Add("@User_Name", SqlDbType.VarChar, 20);
com.Parameters["@User_Name"].Value = this.txtUser.Text;
com.Parameters.Add("@Pass_word", SqlDbType.VarChar, 20).Value = this.txtPwd.Text;
com.Parameters.Add("@Id", SqlDbType.Int, 4).Direction = ParameterDirection.Output;
com.ExecuteNonQuery();
this.lblTip.Text = com.Parameters[2].Value.ToString();
con.Close();
}
catch { }
}
}
}
{
string SqlConnectionString = "Server=(local);Initial Catalog=dbtest;Integrated Security=True";
protected void Page_Load(object sender, EventArgs e)
{
}
protected void btnSubmit_Click(object sender, EventArgs e)
{
SqlConnection con = new SqlConnection(SqlConnectionString);
using (SqlCommand com = new SqlCommand())
{
try
{
con.Open();
com.Connection = con;
com.CommandType = CommandType.StoredProcedure;
com.CommandText = "add_users";
com.Parameters.Add("@User_Name", SqlDbType.VarChar, 20);
com.Parameters["@User_Name"].Value = this.txtUser.Text;
com.Parameters.Add("@Pass_word", SqlDbType.VarChar, 20).Value = this.txtPwd.Text;
com.Parameters.Add("@Id", SqlDbType.Int, 4).Direction = ParameterDirection.Output;
com.ExecuteNonQuery();
this.lblTip.Text = com.Parameters[2].Value.ToString();
con.Close();
}
catch { }
}
}
}
存储过程代码:(数据库就三个字段UID、UserName、Password)
CREATE proc [dbo].[add_Users]
(@User_Name varchar(20),@Pass_word varchar(50),@Id int output)
as
insert into info(UserName,Password) values(@User_name,@Pass_word)
select @Id=max(UID) from info
(@User_Name varchar(20),@Pass_word varchar(50),@Id int output)
as
insert into info(UserName,Password) values(@User_name,@Pass_word)
select @Id=max(UID) from info
完整程序下载:下载