C# web browser constructor

Question

I am trying to add a web browser to an existing C# application, but, having not used C# in about 6 years, I am quite unfamiliar with how it works.

I am trying to add the browser to a partial class (again, something I am not familiar with) using the following code:

public partial class WebBrowser : WebBrowserBase{
    public WebBrowser(){
        ...
    }
    ...
}

However, I am getting a compile error on the constructor that says:

'WebBrowserBase' does not contain a constructor that takes 0 arguments

I Google'd this, and came across the following question on SO: C# Error: Parent does not contain a constructor that takes 0 arguments. I tried doing what was suggested in the answer to this, and changed my code to:

public partial class WebBrowser : WebBrowserBase{
    public WebBrowser(int i) : base(i){
        ...
    }
    ...
}

However, I then get a compile error that says:

'WebBrowserBase' does not contain a constructor that takes 1 arguments

So I'm guessing that this issue isn't to do with the number of arguments in the constructor... Can anyone explain what I'm doing wrong here?

What are you going to use it for? Depending on this I would suggest the use of XAML or a normal webrequest — Tom Droste, Apr 28 '16 at 11:53
Basically, I want to display the current application as it is, inside the web browser, giving the user the option to switch between the application display and a web page display as the application will, in various places, give the user the option to open up a particular web page. I have never used XAML- this is the first time I have come across it, and am not really sure how to use it/ integrate it with code that I will write manually myself... — Noble-Surfer, Apr 28 '16 at 12:15
And what technology stack is the main app done in? As you haven't used XAML? Or are we talking about some proof of concept? — Petr Vávro, Apr 28 '16 at 12:21
I have only just started working on this- I think the GUI as it currently stands has been created using XAML (there are .xaml.cs files in the solution)- the main application is written in C#. So I guess it is best to use XAML to edit the GUI, rather than writing in my own C#? I've never used XAML before, and have generally just written the source for any GUIs I've created myself (mainly Java applications, using the `swing` framework). In that case, I'll Google a XAML tutorial. — Noble-Surfer, Apr 28 '16 at 12:34

score 2 · Answer 1 · answered Apr 28 '16 at 12:15

If you have a look at WebBrowserBase Class it states that:

"This API supports the product infrastructure and is not intended to be used directly from your code."

And it seems that it doesn't have any public constructor - so you can't inherit from it. But if you don't want to create your own WebBrowser control (alter some of it's functionality), you should just use the default System.Windows.Forms.WebBrowser in a XAML View:

<Window x:Class="WpfApplication1.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="MainWindow"
    Width="525"
    Height="350">
    <WebBrowser HorizontalAlignment="Stretch" VerticalAlignment="Stretch"  />
</Window>

score 1 · Answer 2 · answered Apr 28 '16 at 13:42

  In Inheritance,

   If Derived class contains its own constructor which not defined in Base class then this error Occurs
For Example:
 class FirstClass
   {
      public FirstClass(string s) { Console.WriteLine(s); }
   }

class SecondClass : FirstClass
{
    public SecondClass()
    {
        Console.WriteLine("second class");
    }
}

Output: Error:-'myconsole.FirstClass' does not contain a constructor that takes 0 arguments 

To Run without Error:
 class FirstClass
{
    public FirstClass()
    {
        Console.WriteLine("second class");
    }
  public FirstClass(string s) { Console.WriteLine(s); }
}

class SecondClass : FirstClass
{

    public SecondClass()
    {
        Console.WriteLine("second class");
    }
}

C# web browser constructor

2 Answers2