how to upload image to a circle picurebox in asp.net webform

Question

Good day everyone i want to upload image to a circle picture box in csharp asp.net

 

<img class="profile-user-img img-responsive img-circle" src="admin/dist/img/user4-128x128.jpg" alt="User profile picture">

 

protected void btnupload_Click(object sender, EventArgs e)

{

String path = Path.GetFileName()

path = path.Replace("", "");

String filename = path;

}

 

i want to be able to upload the image not more that circle box , upload and retreive it to the picture box