Can I Show And Hide The Progress Bar Continuously After The Some Specific Time Period (Like Blink)

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C#

i have a progress Bar and set false from their property window and in program dynamically on text change event set progressBar1.Visible = true and againg after thread sleep of 300 again set to false but not working fine


my code

private void textBox1_TextChanged(object sender, EventArgs e)//text change event 
{
    change();
}
void change()
{
progressBar1.Visible = true; // this property is not visibale at the UI .Progress Bar not visible at form
Thread.Sleep(3000);
progressBar1.Visible = false;

}