<table  id="tabShowComments" border="2" cellpadding="0" cellspacing="0" width="940px"  style="height:auto; border:1px dotted black; border-collapse:collapse;"  runat="server">

Change The "border:1px dotted black" to change the color to 'white'?? and or turn off the border. But I need the border="2" to remain.

How do I do both, change the color and/or turn on/off border in vb.net codebehind ??

On page load event:

tabShowComments.BorderColor = System.Drawing.Color.White
tabShowComments.BorderStyle = BorderStyle.None

You must Import System.Drawing.

you can change the border color using following code.

tabShowComments.Style.Add("border-color", "white");

if you want to turn off the border. u can do as following

tabShowComments.Style.Add("border", "none");