C#, WPF - OpenFileDialog does not appear

Question

I have been searching up and down the web and unfortunately never came across an issue quite like mine, so here goes:

My C# WPF application won\'t show me no OpenFil

Answer 1

sometime [staThread] not working, you can try this:

    public void showOpenFileDialog()
    {
        OpenFileDialog im = new OpenFileDialog();
        if (im.ShowDialog() == DialogResult.OK)
        {
            textBox1.Text = im.FileName;
        }
    }


    private void select_button_Click(object sender, EventArgs e)
    {
        Thread newThread = new Thread(new ThreadStart(showOpenFileDialog));
        newThread.SetApartmentState(ApartmentState.STA);
        newThread.Start();
    }