how i select min and max values from dataset

Question

i want to retrive min and max value from dataset and those values use in for loop for display title in panel

    String sql = \"select  title, song_id from up_so         


        

Answer 1

Make use of LINQ:

 var m = ds.Tables["title"].AsEnumerable().Max(x => x.Field<int>("song_id"));
 var k = ds.Tables["title"].AsEnumerable().Min(x => x.Field<int>("song_id"));

Remeber that you have to add System.Data.DataSetExtensions to have DataSet.AsEnumerable() extension :)

Answer 2

To Get MAX And MIN Values from a Dataset

   var maxTwn = mydataset.Tables[0].AsEnumerable().Max(r =>r["TWN"]);
   var minTwn = mydataset.Tables[0].AsEnumerable().Min(r =>r["TWN"]);

Answer 3

With using Linq extension methods:

int minSongId = ds.Tables["title"].AsEnumerable()
                  .Min(r => r.Field<int>("song_id"));
int maxSongId = ds.Tables["title"].AsEnumerable()
                  .Max(r => r.Field<int>("song_id"));

Answer 4

What about using this?

foreach(DataRow row in ds.Tables["title"].AsEnumerable())
{
    ....
}