Re: Detecting a 3G connection in Windows 7 and 8 in a desktop application - C# Discussion Boards

Re: How to reference .net DLL present in other folder

26-Dec-12 9:13

KASR1 wrote:
i shound not put many assembly in GAC

Why not?

KASR126-Dec-12 16:25

KASR1

26-Dec-12 16:25

Even i am concerned about that, but i was asked to find other possible options to make the dll to refer its dependent dlls. I am interested to know whether it can be achieved via config file.

Usage of Google API in windows application

ukraju24-Dec-12 1:05

ukraju

24-Dec-12 1:05

Hi, I want to get the latitude and longitude for a given address using google apis. Is it possible to do this in the windows based application?If possible how to do this?

Re: Usage of Google API in windows application

David C# Hobbyist.24-Dec-12 2:25

David C# Hobbyist.

24-Dec-12 2:25

I haven't used it before but here is a link [^] To the api.

Frazzle the name say's it all

Always code as if the guy who ends up maintaining your code will be a violent psychopath who knows where you live.
John F. Woods

Re: Usage of Google API in windows application

Sajeesh Payolam24-Dec-12 20:28

Sajeesh Payolam

24-Dec-12 20:28

I think google earth api can be used in .NET applications.You have to embed the required javascript functions in the HTML behind
a webBrowser object and then call the functions using the
webBrowser.Document.InvokeScript method.

Detecting a 3G connection in Windows 7 and 8 in a desktop application

REDSERPENT724-Dec-12 1:04

REDSERPENT7

24-Dec-12 1:04

Hi
I am in the process of developing a cloud backup software. The application is a desktop application developed using C#.

I need to add an option to stop/pause the backup if the computer was connected to a 3G network to save cost for the user.

I cannot seem to be able to find any example on how this can be achieved, there are some examples for Windows Phone and Windows Store Apps but I cannot find anything that can check if the connection type is a WiFi/Ethernet or 3G the latter is my main concern.

I tried a test application to enumerate the networks:

Console.WriteLine("checking network interfaces\n");

NetworkInterface[] interfaces =  NetworkInterface.GetAllNetworkInterfaces();

foreach (var networkInterface in interfaces)
{
   Console.WriteLine("Interface Detected");
   Console.WriteLine("Description: "+networkInterface.Description);
   Console.WriteLine("ID: " + networkInterface.Id);
   Console.WriteLine("Name: " + networkInterface.Name);
   Console.WriteLine("Interface Type: " + networkInterface.NetworkInterfaceType);
   Console.WriteLine("Operational Status: " + networkInterface.OperationalStatus.ToString());
   Console.WriteLine("Speed: " + networkInterface.Speed.ToString());
   Console.WriteLine("Supports Multicast: " + networkInterface.SupportsMulticast.ToString());
   Console.WriteLine("#########################################################\n");
}

The above code list my 3G connection as PPP which can be either ADSL or 3G. I am not sure if I can differentiate using some other options or APIs

I need a clear way to distinguish between those networks and so far I cannot find a way of doing so.

Can someone please help?

modified 24-Dec-12 7:12am.

Re: Detecting a 3G connection in Windows 7 and 8 in a desktop application

MaulikDusara24-Dec-12 20:44

MaulikDusara

24-Dec-12 20:44

Hi,
Given link may be useful to you.

http://stackoverflow.com/questions/5325627/how-can-i-check-for-3g-wifi-edge-cellular-networks-in-windows-phone-7[^]

Maulik Dusara
Sr. Sofware Engineer

Re: Detecting a 3G connection in Windows 7 and 8 in a desktop application

REDSERPENT729-Dec-12 21:33

REDSERPENT7

29-Dec-12 21:33

Thats for Windows Phone, sadly the solution does not work with desktop applications.

Ipstatus.Success answer twice !!

Alex1971_rm24-Dec-12 0:15

Alex1971_rm

24-Dec-12 0:15

Good morning,
I have a problem with the code below....when I receive answer from my clients, if they are connected, ping class answer twice. The problem is that I have to put the answers in a richtextbox I would avoid to see some double entry !

Thanks in advance !!

foreach (string PC in primaColonnaPc)
               
            {
                
                try
                {
                    Ping x = new Ping();

                    PingReply reply = x.Send(PC);
                    if (reply.Status == IPStatus.Success)
                    {

                         valore = PC + " OK\r";
                          
                          f2.riceviDati = valore; 
                         
                        
                    }
                    else
                     valore =("ATTENZIONE: " + PC + "ERROR\r");
                         f2.riceviDati = valore; 
                }
                catch (Exception)
                {
              valore =("ATTENZIONE:" + PC + ": WS not found\r");
                    f2.riceviDati = valore; 
                }

How do i create an object of partial class in user control

swapnil709022-Dec-12 20:27

swapnil7090

22-Dec-12 20:27

i am creating an asp.net application in which i have UploadImage.aspx page and user control
how would i create an object of Partial class UploadImage.cs in usercontrol.cs

Thanks for any help you might be able to provide with this problem, Smile | :)

Re: How do i create an object of partial class in user control

nainakarri22-Dec-12 22:03

nainakarri

22-Dec-12 22:03

Hi
Write the below in usercontrol
UploadImage objname = new UploadImage()

Regards
Naina

Naina

error i declaring null arrays

tashee22-Dec-12 5:22

tashee

22-Dec-12 5:22

Hello,

I have declared a null array but when i try to use this array to store my values, it gives me an error as "use of unassigned local variable".
I donno whats wrong.
here is my code

double[] strPLatitude;
if (dr.HasRows)
{
while (dr.Read())
{
strPLatitude[i] = Convert.ToDouble(dr["latitude"].ToString());
i++;
}
}

Richard MacCutchan22-Dec-12 6:40

Richard MacCutchan

22-Dec-12 6:40

You must allocate some space to it before you can store anything in it. Something like:

if (dr.HasRows)
{
    strPLatitude = new double[N]; // where N is the number of items to be stored.
    while (dr.Read())
    {

You are also incrementing the variable i; are you sure you initialised it somewhere?

One of these days I'm going to think of a really clever signature.

tashee22-Dec-12 7:39

tashee

22-Dec-12 7:39

Yes i have initialized variable i

And data in my database table would increase with time. hence it's not possible to allocate a space to the array, since i don't know how much records exist in my table

PIEBALDconsult22-Dec-12 8:11

22-Dec-12 8:11

Then use a List or something. We tend not to use arrays in C#.

harold aptroot24-Dec-12 0:52

harold aptroot

24-Dec-12 0:52

Actually, you do know what's wrong: you're using an unassigned local variable. It will even tell you that strPLatitude is the culprit.
How to fix? Assign something to it, obviously. Most C# compile errors are easy like that.

You wanted a null array? Then make a null array: double[] strPLatitude = null;

That doesn't make the code work, I grant you, but it fixes this problem.

However, this:

tashee wrote:
declared a null array but when i try to use this array to store my values

Reveals a deeper problem. You can't use something that doesn't exist. Like Richard wrote, "You must allocate some space to it before you can store anything in it". Your reply to him seems to imply you didn't really get it.

This is like saying "I have a place where a bookshelf should go but there isn't one there yet, why do things go wrong when I try to store books in it?"

Don't use something that doesn't exist. You need an actual bookshelf, not just a place where a bookshelf could go.

PIEBALDconsult suggest you use a List, you should probably do that. Be sure to Add[^] the items to the list, don't try to stuff them into positions that do not exist.

Working with data base

columbos1492722-Dec-12 4:26

columbos14927

22-Dec-12 4:26

Hello,
Im doing a big final project that manages a dive shop.
This application will have data base.
What im looking for is some example of solution that works with data base(connect to DB , SQL , Query) that i can take and modify it for my needs.

Thanks.

PIEBALDconsult22-Dec-12 5:07

22-Dec-12 5:07

I can offer you some insight into creating a Data Access Layer.
DatabaseAccessor[^]
There are many similar articles on here.

SledgeHammer0122-Dec-12 9:38

SledgeHammer01

22-Dec-12 9:38

I understand that article is from 2007, but I'd completely disregard it. It was completely bad practice even "back then". Definitely is horrible practice today. Use a proper data access layer like EF, nHibernate, etc. At the very least, if you use barebones ADO.NET, you should not write queries in the C# code like that. Completely vulnerable to a script kiddie who knows SQL injection.

PIEBALDconsult22-Dec-12 12:58

22-Dec-12 12:58

SledgeHammer01 wrote:
Completely vulnerable to a script kiddie who knows SQL injection

Bullshit -- it fully and easily supports parameters so there's no reason a developer has to leave himself open to that.

SledgeHammer01 wrote:
EF, nHibernate, etc

And what do you think they do in the background? Exactly the same things I do. Everything has to go through a command and connection eventually; I cut out the middle man. Additionally, those tools may not support whatever database the OP has to use, whereas there is probably an ADO.net connector for it.

jschell22-Dec-12 14:05

jschell

22-Dec-12 14:05

SledgeHammer01 wrote:
It was completely bad practice even "back then".

Nonsense.

SledgeHammer01 wrote:
you should not write queries in the C# code like that. Completely vulnerable to a script kiddie who knows SQL injection.

You and I must have completely different definitions of SQL injection then.

I don't see anything in there that suggests anything at all like that.

Simon_Whale23-Dec-12 0:05

Simon_Whale

23-Dec-12 0:05

Most of the ORM providers are bult upon ADO.NET.

but personally I dont think there is anything wrong with using ADO.NET, SQL Injection is only possible when there is a lack of parameterised queries.

Lobster Thermidor aux crevettes with a Mornay sauce, served in a Provençale manner with shallots and aubergines, garnished with truffle pate, brandy and a fried egg on top and Spam - Monty Python Spam Sketch