Question

Within my datalist, I want to create a separation dividing each ItemTemplate with a new year, when a different year occurs.

I select my data using:

MySqlDataAdapter adapter = new MySqlDataAdapter("SELECT * FROM code_post", dbcon);

And within this field, a date denotes the year it was created. For instance 2011, 2010, 2009.

How can I make a heading of a new year division when a different year occurs?

Answer 1

The way I solved this was by making one trip to the database, and having the code such as

private String previousYear;
public string outputHeader(object y){
  String year = y.ToString();
   if(!previousYear.equals(year)){
      previousYear = year;
      return year;
   }
   return "";
}

and inside the item template i did

<%# outputHeader(Eval("date")) %>

This allows for one trip to the DB, and is far more efficent/flexible than the previously suggest methods