Why does Firefox ignore the ASP.NET GridView border property?

By default, ASP.NET GridView comes with border property equal to null. So, you can see the vertical and horizontal lines in GridView. No matter about the browser type, it shows correctly. But if you set the GridView border property to zero (border=”0”), it will behave differently in Microsoft IE and Firefox web browsers. Because, Microsoft IE shows the GridView without borders, but Firefox shows the same GridView with borders even border=”0”. Simply Firefox ignore the ASP.NET GridView border property.

Anyway, if we really want to hide the ASP.NET GridView gridlines inside Firefox web browser, we can do it without playing with CSS. Simply we have to set the GirdView GridLines = “None”. Because, by default GridLInes property comes with “Both” value. So, it shows the horizontal and vertical lines inside the ASP.NET GridView.