C#

Oscar Andersson wrote:

We want to block the webbrowser from reaching these webpages.

Oscar Andersson wrote:

But i think it is one host file for every user on the computer.

Oscar Andersson wrote:

Does webbrowser like IE, Firefox, Chrome, Opera have a API that i can use for this?

Bastard Programmer from Hell
If you can't read my code, try converting it here[^]

Oscar Andersson wrote:

It will be a product that people install at their computers

Bastard Programmer from Hell
If you can't read my code, try converting it here[^]

private Dictionary<string, int> Pets = new Dictionary<string, int>();

Pets.Add("Ares", 3);
Pets.Add("Mike", 6);

// let's pull out a specific KeyValuePair
string keyToGet = "Ares";

var testKVP = Pets.FirstOrDefault(kvp => kvp.Key == keyToGet);

// if we didn't find that one, quit
if (testKVP.Key == null) return;

// proof #1: that you can't change Key
// testKVP.Key = "AnotherMike";
// fail:
// Property or indexer
// 'System.Collections.Generic.KeyValuePair<string,int>.Key'
// cannot be assigned to -- it is read only

// proof #2: that you can't create
// a new entry with the same Key
// Pets.Add("Ares", 9);
// fail:
// An item with the same key has already been added.

// assume you have a Button, 'button1 on the Form
// assume you have a TextBox, 'textBox1 on the Form
private void Form1_Load(object sender, EventArgs e)
{
    // code you should never write !
    this.Controls.Remove(button1);
    textBox1.Controls.Add(button1);
    button1.Location = new Point(2, 2);

    // yes, the Click Event Handler will work
    button1.Click += button1_Click;
}

private void button1_Click(object sender, EventArgs e)
{
    MessageBox.Show("Monster speaking: 'in the TextBox: A Button'");
}