存储过程:
create proc proc_GetUserID
@UserName nvarchar(50),@ID int output
as
begin
set @ID = (select ID from UserAccount where UserName = @UserName)
end
@UserName nvarchar(50),@ID int output
as
begin
set @ID = (select ID from UserAccount where UserName = @UserName)
end
C#代码:
private void GetUserID(string userName)
{
SqlParameter[] paras = new SqlParameter[2];
paras[0] = new SqlParameter("@UserName", userName);
paras[1] = new SqlParameter("@ID",SqlDbType.Int);
paras[1].Direction = ParameterDirection.Output;
object o = DataAccess.ExcuteNonQuery_Proc_Output("proc_GetUserID", paras, "@ID");
if (o == null || o.ToString() == "")
{
this.Label1.Text = "没有这个用户名";
}
else
{
this.Label1.Text = o.ToString();
}
}
{
SqlParameter[] paras = new SqlParameter[2];
paras[0] = new SqlParameter("@UserName", userName);
paras[1] = new SqlParameter("@ID",SqlDbType.Int);
paras[1].Direction = ParameterDirection.Output;
object o = DataAccess.ExcuteNonQuery_Proc_Output("proc_GetUserID", paras, "@ID");
if (o == null || o.ToString() == "")
{
this.Label1.Text = "没有这个用户名";
}
else
{
this.Label1.Text = o.ToString();
}
}
public class DataAccess
{
public static object ExcuteNonQuery_Proc_Output(string procName, SqlParameter[] parameters,string outName)
{
SqlConnection conn = GetConnection();
SqlCommand cmd = new SqlCommand();
cmd.Connection = conn;
cmd.CommandType = CommandType.StoredProcedure;
cmd.CommandText = procName;
for (int i = 0; i < parameters.Length; i++)
{
cmd.Parameters.Add(parameters[i]);
}
conn.Open();
int n = cmd.ExecuteNonQuery();
object o = cmd.Parameters[outName].Value;
conn.Close();
return o;
}
}
{
public static object ExcuteNonQuery_Proc_Output(string procName, SqlParameter[] parameters,string outName)
{
SqlConnection conn = GetConnection();
SqlCommand cmd = new SqlCommand();
cmd.Connection = conn;
cmd.CommandType = CommandType.StoredProcedure;
cmd.CommandText = procName;
for (int i = 0; i < parameters.Length; i++)
{
cmd.Parameters.Add(parameters[i]);
}
conn.Open();
int n = cmd.ExecuteNonQuery();
object o = cmd.Parameters[outName].Value;
conn.Close();
return o;
}
}