How to send parameters from class to winform?

Question

I've found a code that does exactly what I like: View/edit ID3 data for MP3 files

...

class a{
   public ? getContent(){

      string Title = Encoding.Default.GetString(tag.Title);
      string Artist = Encoding.Default.GetString(tag.Artist);
      string Album = Encoding.Default.GetString(tag.Album);
   }
}

class form1{
    button1.click()
    {
        ? = a.getContent
        text1.text = ?.Title;
        text2.Text = ?.Artist;
    }
}

Simucal print the result to the console but I'd like to have a winform that gets this input and puts it in some textboxes. I guess I can do it with arrays but I guess there are better ways to do it in the mvvm way (I know that my question may make no sense but I like to do it the right way)...

Please help :)

score 1 · Answer 1 · answered Jun 03 '11 at 17:50

In this situation, you would simply return a result object containing that data:

public ContentData getContent()
{
     return new ContentData
     {
        Title = "Hello World",
        Artist = "Some Other String"
     };
}

ContentData data = someobject.getContent();

text1.Text = data.Title; 
// etc

You would just make your own type.

score 1 · Accepted Answer · edited Jun 03 '11 at 18:27

Is there some reason you can't use a class to encapsulate that data?

class TagData
{
    public string Title {get; set; }
    public string Artist {get; set; }
    public string Album {get; set; }
}

class a{
   public TagData getContent(){
      return new TagData
      {
          Title = Encoding.Default.GetString(tag.Title),
          Artist = Encoding.Default.GetString(tag.Artist),
          Album = Encoding.Default.GetString(tag.Album)
      };
   }
}

class form1{
    button1.click()
    {
        var tagData = a.getContent
        text1.text = tagData.Title;
        text2.Text = tagData.Artist;
    }
}

Alternatively, if you want to be less 'safe' about it, you could just pack it all into a Dictionary:

class a{
   public Dictionary<string, string> getContent(){
      var tagData = new Dictionary<string, string>();
      tagData["Title"] = Encoding.Default.GetString(tag.Title);
      tagData["Artist"] = Encoding.Default.GetString(tag.Artist);
      tagData["Album"] = Encoding.Default.GetString(tag.Album);
      return tagData;
   }
}

class form1{
    button1.click()
    {
        var tagData = a.getContent();
        text1.Text = tagData["Title"];
        text2.Text = tagData["Artist"];
    }
}

Also, if you are using .NET4, then you could use a Tuple or an ExpandoObject or a dynamic... It would save you the trouble of explicitely defining a `TagData` type. — CodingWithSpike, Jun 03 '11 at 17:55

score 0 · Answer 3 · answered Jun 03 '11 at 17:49

0

Create a class called Tags or something similar with the properties you want. Return an instance of that with the properties set. Winforms doesn't do MVVM very well.

answered Jun 03 '11 at 17:49

Daniel A. White

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How to send parameters from class to winform?

3 Answers3