asp.net实现调用带有输出参数的存储过程实例

<script type="text/javascript">
 $(document).ready(function(){
 $('#change_image').click(function(){ $('#imgAuthenCode').attr('src','CheckCode.aspx?'+Math.random());});
 $("#accounts").bind("blur",function(){
 $.ajax({
 url:"checkusername.aspx",
 type:"post",
 datatype:"html",
 data:{user_name:$("#accounts").val()},
 success:function(msg){$("#tip_accounts").html(msg);}
 });});
 });
</script>

protected void Page_Load(object sender, EventArgs e)
{
 Entity.User us = new Entity.User();
 us.User_name = Request.Params["user_name"].ToString();
 if (us.User_CheckName())
 {
 Response.Write("<font color=red>用户名已经存在，请尝试其它用户名！</font>");
 }
 else
 {
 Response.Write("<font color=black>用户名可以使用！</font>");
 }
}

public bool User_CheckName()
{
 try
 {
 string[,] sArray = new string[2, 2];
 sArray[0, 0] = "@user_name";
 sArray[1, 0] = "@r_id";
 sArray[0, 1] = User_name;
 sArray[1, 1] = null;
 Factory.SqlModel sm = new Factory.SqlModel();
 Id = sm.Proc_Return_R_ID("User_CheckName", sArray);
 if (Id > 0)
 {
 return true;
 }
 else
 {
 return false;
 }
 }
 catch (Exception e)
 {
 Log lg = new Log();
 lg.ExceptionError(e);
 return false;
 }
}

public int Proc_Return_R_ID(string proc_name, string[,] sArray)
{
 try
 {
 if (sArray.GetLength(0) >= 1)
 {
 DataBase db = new DataBase();
 SqlParameter[] sqlpar = new SqlParameter[sArray.GetLength(0)];//加入返回值
 for (int i = 0; i < sArray.GetLength(0); i++)
 {
 sqlpar[i] = new SqlParameter(sArray[i, 0], sArray[i, 1]);
 }
 sqlpar[sArray.GetLength(0) - 1].Direction = ParameterDirection.Output;
 sqlpar[sArray.GetLength(0) - 1].SqlDbType = SqlDbType.Int;
 return db.Proc_Return_R_ID(proc_name, sqlpar);
 }
 else
 {
 return 0;
 }
 }
 catch
 {
 return 0;
 }
}

public int Proc_Return_R_ID(string proc_name, params SqlParameter[] cmdParms)
{
 try
 {
 OpenConnection();
 if (cmdParms != null)
 {
 foreach (SqlParameter parameter in cmdParms)
 {
 if ((parameter.Direction == ParameterDirection.InputOutput || parameter.Direction == ParameterDirection.Input) && (parameter.Value == null))
 {
 parameter.Value = DBNull.Value;
 }
 BaseSqlCommand.Parameters.Add(parameter);
 }
 BaseSqlCommand.CommandType = CommandType.StoredProcedure;
 BaseSqlCommand.CommandText = proc_name;
 BaseSqlCommand.ExecuteNonQuery();
 return (int)BaseSqlCommand.Parameters["@r_id"].Value;
 }
 else
 {
 return 0;
 }
 }
 catch
 {
 return 0;
 }
 finally
 {
 BaseSqlCommand.Parameters.Clear();
 CloseConnection();
 }
}