If statement for length property in C#

Question

In C#, if statement I am capturing the length property and want to apply condition statement for that. But i believe my condition statement is not working. How should I apply condition statement for the given code. length "66" means internet connection is down else its up.

WebClient client = new WebClient();
string value;
try
{
    value = client.DownloadString("http://google.com");
}
catch(WebException ex)
{
    value = (ex. Message);
}
if (value = "66")
{
    Console.WriteLine("Internet connection is down");
}
else
{
    Console.WriteLine("Internet connection is up");
}
Console.WriteLine(value.Length);           
Console.WriteLine("Press any key to continue");
Console.ReadKey(true);

You could change the code to `if (value.Length == "66")`. But even then i would assume that it's not a good idea to rely on the length of an error message (consider f.e. localization). — Tim Schmelter, Oct 08 '12 at 09:09
i just want to internet connection is down so when internet connection is down it always show "Internet explorer cannot display the webpage" this is actually i m check my Load balancer URl. I will get two results only one is empty html string or internet explorer cannot display the page. thanks — Sohail, Oct 08 '12 at 09:21

score 9 · Accepted Answer · answered Oct 08 '12 at 09:07

9

value = "66" is an assignment, not an equality comparison, which would be value == "66".

answered Oct 08 '12 at 09:07

Grant Thomas

44,454
10
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@AdamHouldsworth Actually, yes I would think so. (: – Grant Thomas Oct 08 '12 at 09:09

score 0 · Answer 2 · answered Oct 08 '12 at 09:08

0

if (value = "66") -> if (value == "66")

Must return a boolean

answered Oct 08 '12 at 09:08

Roshana

428
3
15

score 0 · Answer 3 · answered Oct 08 '12 at 09:11

0

if (value = "66")

means, go to the statement, if the assignment of the String "66" to the variable value are successful

Jo need to use "=="

if (value == "66")

= -> assignment == -> equal

answered Oct 08 '12 at 09:11

Thargor

1,862
14
24

score 0 · Answer 4 · edited May 23 '17 at 10:24

0

I am really not sure this is a safe way to detect internet connectivity. When I try this code and pull my network cable out, I get

"The remote name could not be resolved: 'google.com'"

which is 51 characters.

There doesn't seem to be a property on WebClient to detect connectivity, but this post might help.

edited May 23 '17 at 10:24

Community

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1

answered Oct 08 '12 at 11:04

Colin Desmond

4,824
4
46
67

If statement for length property in C#

4 Answers4