Set Difference Minus Operation with LINQ using Except
If you have morethan two columns to compare in List Object, you need to use Equality Compare Based on Class Objects. The following program compares two list objects and applies Set Minus operation: protected void Page_Load( object sender, EventArgs e) { List< listclass > lst1 = new List < listclass > { new listclass { no = 1, revsion =0, title = "title1" }, new listclass { no = 2, revsion =0, title = "title2" }, ...