Create List in Linq

[shapper]

Hello,

I want to create a List(Of Tag) where Tag is an object with two
properties: ID and Name
I am creating this list from a CSV string that contains names of many
Tags.
So I create the List, giving to each Tag only its name (the ID remains
empty, as follows:

List<Tag> form = paper.Tags.Split(',').Select(p => new Tag { Name =
p.Trim() }).ToList();

What happens is that if the CSV is empty I still get one Tag in the
list with Name = "".

What am I doing wrong?

Thanks,
Miguel

 

[Martin Honnen]

Hello,

I want to create a List(Of Tag) where Tag is an object with two
properties: ID and Name
I am creating this list from a CSV string that contains names of many
Tags.
So I create the List, giving to each Tag only its name (the ID remains
empty, as follows:

List<Tag> form = paper.Tags.Split(',').Select(p => new Tag { Name =
p.Trim() }).ToList();

What happens is that if the CSV is empty I still get one Tag in the
list with Name = "".

What am I doing wrong?

If you don't want empty strings then you can filter them out:

List<Tag> form = paper.Tags.Split(',').Where(p => p != "").Select(p =>
new Tag { Name =
p.Trim() }).ToList();

 

[Pierre T.]

Hi!

You can use the StringSplitOptions.RemoveEmptyEntries as 2nd paramter to the
Split method.

Regards,

Pierre T.

 

[shapper]

Hi!

You can use the StringSplitOptions.RemoveEmptyEntries as 2nd paramter to the
Split method.

Regards,

Pierre T.

You mean:

List<Tag> form = paper.Tags.Split(new char[] {','},
StringSplitOptions.RemoveEmptyEntries).Select(t => new Tag { Name =
t.Trim() }).ToList();

It didn't work ... I still get one item ... Count = 1 of form list.

Am I doing something wrong?

Thanks,
Miguel

 

[shapper]

Hi!

You can use the StringSplitOptions.RemoveEmptyEntries as 2nd paramter to the
Split method.

Regards,

Pierre T.

My mistake ... both options worked! With StringSplitOptions and using
Where in Linq ... I suppose using StringSplitOptions is better in the
case ... I think ...

Thanks,
Miguel