In my application, i've created a signup form and i need to show an Error Icon whenever an Edit is empty or contain some error. But the image haven't a Name property and therefor i am unable to to call the Hide the image by its name. Therefore i decided to put an image into the panel and hide the panel instead. something like :
if(lenght(edit1.text)=0) then
Panel1.show else Panel1.hide; // this code shows or hide the image
The problem is that the panel's border still appear after setting BorderStyle to bsNone.
How to hide completely the panel's border ?
(Your actual problem most likely can be solved without adding a TPanel, but I still answer your actual question here.)
Set BevelInner and BevelOuter to bvNone.
By the way, your code can be written more elegantly as
Panel1.Visible := Length(Edit1.Text) = 0;