Convert dataset to List(of string)

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How to convert dataset to list(of string)?

Code:

VB

Dim name As String
      name = dsMatter.Tables(0).Rows(0).Item("FirstName")

It tried to change the code to:

VB

Dim name As String
      name = dsMatter.Tables(0).Rows(0).Item("FirstName").Tolist

But is not working.. Can you please help me with this?

Posted 10-Aug-15 4:18am

apr1234

Updated 10-Aug-15 9:51am

Maciej Los

v2

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Comments

F-ES Sitecore 10-Aug-15 10:29am

A dataset has rows and columns, a List<string> only has columns so you'll need to explain what your list is going to look like as there is no one-to-one conversion.

apr1234 10-Aug-15 10:33am

List looks like some what like this
FirstName
--------
Name1

PIEBALDconsult 10-Aug-15 10:51am

If you don't want a DataSet, then don't ask for one. Construct the data in the form you want it in. "Converting" is a cry for help.

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hypermellow · Accepted Answer · 2015-08-10T04:41:00

Solution 1

Hi,

Have a look at an Introduction to LINQ in Visual Basic[^]

Then you can convert to a list of strings, by doing something like this:

VB

Dim sList As List(Of String) = dsMatter.Tables(0).AsEnumerable().[Select](Function(r) r.Field(Of String)("FirstName")).ToList()

... hope it helps.

Posted 10-Aug-15 4:41am

hypermellow

Updated 10-Aug-15 4:49am

v2

Comments

hypermellow 10-Aug-15 10:51am

If you bring everything onto a single line it, the error should resolve.
... I've now updated my solution.

*Edit*
Re: Your error message: Have you imported the System.Linq Namespace?

apr1234 10-Aug-15 11:11am

Got resolved.. I added.. Thanks!

Maciej Los 10-Aug-15 15:53pm

5ed!

hypermellow 11-Aug-15 3:55am

Thank You! :-)