- Details
- Written by: Stanko Milosev
- Category: Beginning
- Hits: 4173
If varible is string, then to check if it is null use:
if (containerid.IsNullOrEmpty())
{ containerid = "-1"; }
Or String.IsNullOrEmpty()
Because null is not empty...
- Details
- Written by: Stanko Milosev
- Category: Code snippets
- Hits: 1511
string milosevCom = "http://www.milosev.com";
string doc = "";
using (System.Net.WebClient client = new System.Net.WebClient())
{
doc = client.DownloadString(milosevCom);
}
Console.WriteLine(doc);
Console.ReadKey();
WebClient is from .NET 6 obsolete.
- Details
- Written by: Stanko Milosev
- Category: Code snippets
- Hits: 7399
Here I explained how to install MonoDevelop. As I already explained here, first download Selenium Client & WebDriver Language Bindings, in my case I downloaded this one. You will also need ChromeDriver (this time for linux), in my case I downloaded this one.
If you try to use chromedriver for windows you will receive errors like:
OpenQA.Selenium.WebDriverException: Unexpected error. System.Net.WebException: Error: ConnectFailure (Connection refused) ---> System.Net.Sockets.SocketException: Connection refused
at System.Net.Sockets.Socket.Connect (System.Net.EndPoint remoteEP) [0x000f7] in <filename unknown>:0
at System.Net.WebConnection.Connect (System.Net.HttpWebRequest request) [0x0019b] in <filename unknown>:0
--- End of inner exception stack trace ---
at System.Net.HttpWebRequest.EndGetRequestStream (IAsyncResult asyncResult) [0x00043] in <filename unknown>:0
at System.Net.HttpWebRequest.GetRequestStream () [0x00057] in <filename unknown>:0
at OpenQA.Selenium.Remote.HttpCommandExecutor.Execute (OpenQA.Selenium.Remote.Command commandToExecute)
and:
run-detectors: unable to find an interpreter for /home/stanko/Downloads/SeleniumTest/SeleniumTest/bin/Debug/chromedriver.exe
Also if you in terminal window write something like:
mono chromedriver.exe
Then you will receive error like:
Cannot open assembly 'chromedriver.exe': File does not contain a valid CIL image
That is why we need to use Linux version of chromedriver.
Download and install Chrome.
Open MonoDevelop, start new solution:
choose console project:
After creating project right click on references:
switch to .Net Assembly tab, and add selenium dll's which we downloaded previously.
Now open Program.cs, in using section write:
using OpenQA.Selenium; using OpenQA.Selenium.Chrome;
In main method write something like:
ChromeDriverService service = ChromeDriverService.CreateDefaultService(@"/home/myUserName/projects/SeleniumTest/lib/chromedriver_linux64", "chromedriver");
IWebDriver driver = new ChromeDriver(service);
driver.Navigate ().GoToUrl ("http://www.milosev.com");
Notice line:
ChromeDriverService service = ChromeDriverService.CreateDefaultService(@"/home/myUserName/projects/SeleniumTest/lib/chromedriver_linux64", "chromedriver");
This line we need to tell selenium that we will use Linux chromedriver, otherwise Selenium will always try to load chromedriver.exe (Windows one).
Whole application should look like this:
using System;
using OpenQA.Selenium;
using OpenQA.Selenium.Chrome;
namespace SeleniumTest
{
class MainClass
{
public static void Main (string[] args)
{
ChromeDriverService service = ChromeDriverService.CreateDefaultService(@"/home/myUserName/projects/SeleniumTest/lib/chromedriver_linux64", "chromedriver");
IWebDriver driver = new ChromeDriver(service);
driver.Navigate ().GoToUrl ("http://www.milosev.com");
}
}
}
Of course path "/home/myUserName/projects/SeleniumTest/lib/chromedriver_linux64" change to path where you downloaded your chromedriver.
Example download from here, and don't forget to use http in your URL's otherwise Selenium will not work.