question

I think that radio-buttons usually do not have borders.

To set the borders, try something like this:

 <style>
     .MyRadioButtons
     {
         border-radius: 4pt;
     }
 </style>
 . . .
 <asp:RadioButton ID="RadioButton1" runat="server" CssClass="MyRadioButtons" . . .

The <style> element can be placed before the repeater, to .css file, or any appropriate place. To simplify the HTML, you can move more properties to this style.

Code behind

 Public Class _default3
     Inherits System.Web.UI.Page
    
     Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
         If Not Page.IsPostBack Then
             RadioButtonList1.DataSource = GetSizes()
             RadioButtonList1.DataValueField = "Id"
             RadioButtonList1.DataTextField = "Size"
             RadioButtonList1.DataBind()
         End If
     End Sub
    
     Protected Function GetSizes() As DataTable
         Dim Connectionstring As String = ConfigurationManager.ConnectionStrings("DefaultConnection").ToString()
         Dim Table As New DataTable()
    
    
         Dim queryString As String = "SELECT Id, Size
                                      FROM dbo.SizeLookup"
    
         Using conn As New SqlConnection(Connectionstring)
    
             Dim cmd As New SqlCommand(queryString, conn)
             cmd.CommandType = CommandType.Text
    
             conn.Open()
    
             Using reader As SqlDataReader = cmd.ExecuteReader()
                 Table.Load(reader)
             End Using
         End Using
    
         Return Table
     End Function
    
     Protected Sub Button1_Click(sender As Object, e As EventArgs)
         Label1.Text = "You Selected " & RadioButtonList1.SelectedValue & " " & RadioButtonList1.SelectedItem.Text
     End Sub
 End Class

SQL

 CREATE TABLE dbo.SizeLookup (
     Id                INT PRIMARY KEY IDENTITY(1,1),
     Size            VARCHAR(3),
     [Description]    VARCHAR(256)
 )
    
 INSERT INTO dbo.SizeLookup
 VALUES ('XS', 'Extra Small'),
 ('S', 'Small'),
 ('M', 'Medium'),
 ('L', 'Large'),
 ('XL', 'Extra Large')

You can add a style to a radio button.

Say, I have this listview:

The radio buttons don't look all that great, so I have this style sheet:

And now for the radiobutton list, I set CssClass="rMyChoice"

and now my rb becomes this:

And you can tweak that radio button still. I actually send the text part of the rb some imbedded HTML with in-line (base64) graphics. And now with a similar style sheet like the above? I get this for my rb's:

Each set above is a radio button list. So, in above, we see "issue".

That markup was this:

And code to fill the issues radio button list was this:

RIssues.DataSource =
` Myrst("SELECT ID, IssueImage + Issue AS IssueImage2 FROM Issues ORDER BY ID", My.Settings.WebIssues)
RIssues.DataBind()

And, the above simple markup, 2 lines of database code (database driven for the choices).

And we get this:

So, you can apply quite much any kind of style you want to your radio buttons - that is quite much the magic of what css can do for you. I in fact find that css can quite much achieve anything humans are able to cook up with their brains.

I don't like writing or setting up css - nasty stuff.

but, I for sure LOVE the output - and the results!!!

Note how I am not just limited to feeding the "text" of the radiobutton list JUST text - I am in above feeding the text property of the radiobutton HTML text - with imbedded graphics. So, you not even limited to display of a the default radio button (the css= hides that ).

Regards,
Albert D. Kallal (Access MVP 2003-2017)
Edmonton, Alberta Canada