Hi,

I am testing the code on page 553 of book "Build your own website in asp.net 4 using C# and vb". I could not understand the following expression,

if (sortExpression == gridSortExpression)

Where "gridSortExpression" is defined?

I am using visual studio express 2012 and not able to execute the code on page 553 and 554. I will appreciate immediate help.