Question

I have problem when trying to navigate my browser component into my combobox selected value – when the combobox value is changed.

It works fine when I’m doing it like below (but then it isnt fired when combobox2 is changed):

    private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
    {
        string[] filePaths = Directory.GetFiles(sites.paths[comboBox1.SelectedIndex]);

        List<Foo> combo2data = new List<Foo>();

        foreach (string s in filePaths)
        {
            Foo fileInsert = new Foo();
            fileInsert.path = s;
            fileInsert.name = Path.GetFileName(s);
            combo2data.Add(fileInsert);
        }

        comboBox2.DataSource = combo2data;
        comboBox2.ValueMember = "path";
        comboBox2.DisplayMember = "name";         

        this.webBrowser1.Navigate((string)comboBox2.SelectedValue); // THE MOST IMPORTANT LINE : )
    }

But I see an exception (Unable to cast object of type App1.Foo to type System.String), when It’s like that:

    private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
    {
        string[] filePaths = Directory.GetFiles(sites.paths[comboBox1.SelectedIndex]);

        List<Foo> combo2data = new List<Foo>();

        foreach (string s in filePaths)
        {
            Foo fileInsert = new Foo();
            fileInsert.path = s;
            fileInsert.name = Path.GetFileName(s);
            combo2data.Add(fileInsert);
        }

        comboBox2.DataSource = combo2data;
        comboBox2.ValueMember = "path";
        comboBox2.DisplayMember = "name";

    }

    private void comboBox2_SelectedIndexChanged(object sender, EventArgs e)
    {
         this.webBrowser1.Navigate((string)comboBox2.SelectedValue);
    }

Answer 1

I think you should add something like file:/// infront of your path

but there is more you should consider

Links to local files on pages that were retrieved via HTTP(S) are deliberately disabled in Mozilla/Firefox, because they can be a security risk, and have been used in attacks in the past.

http://kb.mozillazine.org/Firefox_:Issues:_Links_to_Local_Pages_Don%27t_Work