The calling thread cannot access this object because a different thread owns it

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C#

WPF

Hello,

I am explaining what I'm trying to do. On button click I call an event btnSubmit_Click, on that I want to do 2 process at the same time one is calling a function of ThreadLogin and second is moving my ui without to hang it. But in ThreadLogin, I call a function which lie in Helper class which return bool value and take some parameter too. Below is my code :-

My Code Is :-

private void ThreadLogin()
{
    bool status = false;

    Dispatcher.BeginInvoke(
new ThreadStart(() => status = Helper.login(txtName.Text, txtLogin.Text)));

    if (status)
    {
        MessageBox.Show("Login Successfully", "Success");
        btnReset_Click(null, null);
    }
    else
    {
        MessageBox.Show("The Required Data Is Not Correct", "Error");
    }
}

private void btnSubmit_Click(object sender, RoutedEventArgs e)
{
    ThreadStart tsLogin = new ThreadStart(ThreadLogin);
    Thread thLogin = new Thread(tsLogin);

    thLogin.Start();

    loading.Visibility = Visibility.Visible;

}

And I'm getting Error : The calling thread cannot access this object because a different thread owns it on hover txtName.Text and txtLogin.Text
in

Dispatcher.BeginInvoke(
        new ThreadStart(() => status = Helper.login(txtName.Text, txtLogin.Text)));