Comments by mhamad zarif (Top 160 by date)

I am surprised that we can use new with abstract also ! but logically i dont see it good, since and abstract method has no code and it should be overridden logically but it seems that the logic of abstract method is not well applied in the syntax that c# is giving. I think that it should generate an error when using new with abstract method. What is your opinion ?

thank you. I always try to search the internet and come out with results by myself but sometimes i need the help of experts to make sure that what i deduced was correct.

In your answer you said that i should override both virtual and abstract, so if yes what do they differ from each other ?. Also i am so much confused about hiding, so cant i hide a virtual method ? or i just hide a normal method that is neither virtual nor abstract ?

Reason for my vote of 5
I always use what you mentioned. my 5.

yeah

Reason for my vote of 1
not good

please can you tell me how to do this ?

Reason for my vote of 1
An old tip.

Reason for my vote of 5
i agree.

it seems that you can know what is my problem.So please can you tell me what is my mistake ?

hey man.This is vb.net and not c#.In vb.net we use only sing equal for comparison.I think that you should read a little bit more about programming in vb.net.

I wish to see your code since this is working for me

Thanks for the help.But in session state in web.config i did not specify time so by default it should take 20 minutes.Is not that true ?

Thanks that was great answer.So roles are what users can access when logged in or not.While profiles is only for logged in users right ?

what do you mean by this ?

Hi,i pasted my code up so i hope that you check it please.Thanks in advance.

Please check the code.I pasted up.Thanks in advance.

This is my code:

in Html:
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>

<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="asp" %>





<title>Untitled Page



<asp:toolkitscriptmanager id="ScriptManager2" runat="server" enablepartialrendering="true">
<services>
<asp:servicereference path="DataService.asmx">







And in webservice :

using System;
using System.Collections;
using System.Linq;
using System.Web;
using System.Web.Services;
using System.Web.Services.Protocols;
using System.Xml.Linq;
using System.Data;
using System.Collections.Generic;

[WebService(Namespace = "http://temf.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[System.Web.Script.Services.ScriptService]
public class DataService : System.Web.Services.WebService {

public static IList<string> _cityList;
public DataService () {

//InitializeComponent();
}

[WebMethod]
public string[] GetCities(string prefixText, int count)
{

//Gets the city list
IList<string> cityList = GetCityData();

//using linq to select the cities based on the prefix text
var result = from city in cityList.AsEnumerable()
where city.ToUpper().StartsWith(prefixText.ToUpper())
select city;
//return the result as a string[] by taking only the top n
return result.Take(count).ToArray<string>();
}
private IList<string> GetCityData()
{
if (_cityList == null)
{
CreateCityList();
}

return _cityList;
}
private static void CreateCityList()
{
_cityList = new List<string>();
_cityList.Add("Boston");
_cityList.Add("NewYork");
_cityList.Add("California");
_cityList.Add("New Jersey");
_cityList.Add("Denver");
_cityList.Add("Detroit");
_cityList.Add("Idaho");
_cityList.Add("Ohio");
_cityList.Add("Los Angeles");
_cityList.Add("Las Vegas");
_cityList.Add("Philadelphia");
_cityList.Add("Phoenix");
_cityList.Add("San Antonio");
_cityList.Add("San Diego");
_cityList.Add("Dallas");
_cityList.Add("San Jose");
_cityList.Add("San Francisco");
_cityList.Add("Columbus");
_cityList.Add("Seattle");
_cityList.Add("Washington");
_cityList.Add("Oklahoma City")

Dear Ahsan ,

Thanks for your kind help.But this link is not being opened.

Regards.

I did not expect this offense on me about indentation and tagging and the spaces and capital letters , i read this in the rules down "If a tip/trick is poorly phrased then either ask for clarification, ignore it, or edit the tip/trick and fix the problem. Insults are not welcome." but i am sure now that rules are not applied here .

Thanks for your kind words all . But can any one tell me how SQL injection can work here ?

I want to ask you what do you mean by SQL injection and how my way allows this and why you are checking if datatypes and size matches in the table . ?

Reason for my vote of 5
Secured way