How to write a LINQ query in asp.net in this sitution

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table_name : game

Column Name : name

name
3test
4test
Aron
Ball

SQL

select name from game where name <'A' order by name

output
3test
4test

how to do in asp.net LINQ

C#

SqlCommand cmd = new SqlCommand("select name from game where name <'A' order by name ", con);
SqlDataAdapter adapBrand = new SqlDataAdapter(cmd);

DataSet dataBrand = new DataSet();

adapBrand.Fill(dataBrand);
pubcon.Close();
dataBrand.Tables[0].TableName = "brandall";

DataView dataView = new DataView();

EnumerableRowCollection<datarow> query;
query = how to write a LINQ query to get record as i get in sqlserver?

dataView = query.AsDataView();

DataList1.DataSource = dataView;
DataList1.DataBind();

Thank you

Posted 5-Oct-15 10:41am

christhuxavier

Updated 10-Oct-15 12:13pm

Maciej Los

v2

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Krunal Rohit · Answer 1 · 2015-10-05T18:51:00

Solution 1

C#

var query  = from g in game
        where g.Name < "A"
        orderby g.Name
        select g;

Hope I got it right ;)

-KR

Posted 5-Oct-15 18:51pm

Krunal Rohit

Maciej Los · Answer 2 · 2015-10-11T00:10:00

Solution 2

Try this:

C#

DataTable dt = new DataTable();

dt.Columns.Add(new DataColumn("name", typeof(string)));
dt.Rows.Add(new Object[]{"3test"});
dt.Rows.Add(new Object[]{"4test"});
dt.Rows.Add(new Object[]{"Aron"});
dt.Rows.Add(new Object[]{"Ball"});

Regex reg = new Regex(@"^\d+");

var result = dt.AsEnumerable()
        .Where(a=>reg.IsMatch(a.Field<string>("name")))
        .OrderBy(a=>a.Field<string>("name"));

//result returns: OrderedEnumerableRowCollection<DataRow>

Returns:

3test
4test

Posted 11-Oct-15 0:10am

Maciej Los

Comments

George Swan 11-Oct-15 10:25am

As an alternative to using Regex you can do something like this
var query =
dt.AsEnumerable()
.Where(dr => string.Compare(dr.Field<string>("name"), "A", StringComparison.Ordinal) < 0)
.OrderBy(dr => dr.Field<string>("name"))
.Select(dr => dr.Field<string>("name"))
.ToList();

Maciej Los 11-Oct-15 11:43am

Nice!
Post it as an answer and i'll promise to upvote it!

George Swan 11-Oct-15 13:09pm

I didn't want to post an alternative solution, Maciej, as you had already done all the hard work. Regards, George.

Maciej Los 11-Oct-15 14:19pm

OK.
Cheers, Maciej