Parse Array

[shapper]

Hello,

I have the following class ( Level is just a simple enumeration ):

public class Theme {
public Subject Subject { get; set; }
public List<LevelLevel s { get; set; }
public string Note { get; set; }
}

And MyThemes is a List<Theme>

I am filling "public string[] Themes" from a form and getting:

Themes[0] = Economy|Base,Su perior|Note 1
Themes[1] = Math|Base|Note 2

Now I need to fill MyThemes with these values:

for (int i = 0; i < this.Themes.Len gth; i++) {

this.Themes = this.Themes[i].Split(new char[] { '|' },
StringSplitOpti ons.RemoveEmpty Entries).Select (t =new Theme { Subject
= ???, Levels = ???, Note = ??? }).ToList();

}

I am a little bit confused about this.

For each Theme, Theme[i] I split it using "|" and then:
- First value is Subject
- Second value are the Levels in a CSV format (needs to be converted
to a list)
- Third value is the note

Can't I integrate Linq and Split to get this instead of using more
loops?

Thanks,
Miguel

[=?ISO-8859-1?Q?G=F6ran_Andersson?=]

shapper wrote:

Hello,

I have the following class ( Level is just a simple enumeration ):

public class Theme {
public Subject Subject { get; set; }
public List<LevelLevel s { get; set; }
public string Note { get; set; }
}

And MyThemes is a List<Theme>

I am filling "public string[] Themes" from a form and getting:

Themes[0] = Economy|Base,Su perior|Note 1
Themes[1] = Math|Base|Note 2

Now I need to fill MyThemes with these values:

for (int i = 0; i < this.Themes.Len gth; i++) {

this.Themes = this.Themes[i].Split(new char[] { '|' },
StringSplitOpti ons.RemoveEmpty Entries).Select (t =new Theme { Subject
= ???, Levels = ???, Note = ??? }).ToList();

}

I am a little bit confused about this.

For each Theme, Theme[i] I split it using "|" and then:
- First value is Subject
- Second value are the Levels in a CSV format (needs to be converted
to a list)
- Third value is the note

Can't I integrate Linq and Split to get this instead of using more
loops?

Thanks,
Miguel

You can't put a list of Theme objects in a string array. Besides, you
are making a list containing a single object for every iteration of the
list, so you would overwrite the previous item each time.

Make a constructor for the Theme class that takes a string, then you can
use LINQ to create a list of objects from the string array.

Something like:

public class Theme {
public Subject Subject { get; private set; }
public List<LevelLevel s { get; private set; }
public string Note { get; private set; }

public Theme(string data) {
string[] items = data.Split('|') ;
Subject = Enum.Parse(type of(Subject), items[0]);
Levels = new List<Level>();
foreach (string s in items[1].Split(',')) {
Levels.Add(Enum .Parse(typeof(L evel), s));
}
Note = items[2];
}

}

List<Theme= this.Themes.Sel ect(t =new Theme(t)).ToLis t();

--
Göran Andersson
_____
http://www.guffa.com

[shapper]

On Oct 30, 2:30*pm, Göran Andersson <[e-mail] mwrote:

shapper wrote:

Hello,

I have the following class ( Level is just a simple enumeration ):

* public class Theme {
* * public Subject Subject { get; set; }
* * public List<LevelLevel s { get; set; }
* * public string Note { get; set; }
* }

And MyThemes is a List<Theme>

I am filling "public string[] Themes" from a form and getting:

Themes[0] = Economy|Base,Su perior|Note 1
Themes[1] = Math|Base|Note 2

Now I need to fill MyThemes with these values:

* *for (int i = 0; i < this.Themes.Len gth; i++) {

* *this.Themes = this.Themes[i].Split(new char[] { '|' },
StringSplitOpti ons.RemoveEmpty Entries).Select (t =new Theme { Subject
= ???, Levels = ???, Note = ??? }).ToList();

* *}

I am a little bit confused about this.

For each Theme, Theme[i] I split it using "|" and then:
- First value is Subject
- Second value are the Levels in a CSV format (needs to be converted
to a list)
- Third value is the note

Can't I integrate Linq and Split to get this instead of using more
loops?

Thanks,
Miguel

You can't put a list of Theme objects in a string array. Besides, you
are making a list containing a single object for every iteration of the
list, so you would overwrite the previous item each time.

Make a constructor for the Theme class that takes a string, then you can
use LINQ to create a list of objects from the string array.

Something like:

public class Theme {
* * public Subject Subject { get; private set; }
* * public List<LevelLevel s { get; private set; }
* * public string Note { get; private set; }

* * public Theme(string data) {
* * * *string[] items = data.Split('|') ;
* * * *Subject = Enum.Parse(type of(Subject), items[0]);
* * * *Levels = new List<Level>();
* * * *foreach (string s in items[1].Split(',')) {
* * * * * Levels.Add(Enum .Parse(typeof(L evel), s));
* * * *}
* * * *Note = items[2];
* * }

}

List<Theme= this.Themes.Sel ect(t =new Theme(t)).ToLis t();

--
Göran Andersson
_____http://www.guffa.com

Thanks! It worked fine ... just needed some casting:
Subject = (Subject)Enum.P arse(typeof(Sub ject), items[0]);
and
Levels.Add((Lev el)Enum.Parse(t ypeof(Level), s));