Hi,
I have added a FileUpload, lable and button control in the aspx page. Below code implemented in the button click and things are working fine as you expected.
protected void Button1_Click(object sender, EventArgs e)
{
Label1.Text = FileUpload1.FileName;
}
Use the FileName property of the fileupload control, where ever you want.
Best Regards
Muthuraja