怎么样使用asp.net调用带有输出参数的存储？
本文实例讲述了asp.net实现调用带有输出参数的存储过程。分享给大家供大家参考，具体如下：
前台jqurey
<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>
aspx文件：
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>");
}
}
user类
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;
}
}
sqlmodel 类 一定要设置输出参数的类型 及长度 否则出现 错误
String[1]: the Size property has an invalid size of 0.
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;
}
}
DATABASE.cs 类
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();
}
}
希望本文所述对大家asp.net程序设计有所帮助。
本文地址：http://www.45fan.com/bcdm/43236.html