Create JSon array from code behind file

Question

How can I created arraylist as shown below using asp.net, c#. I can created such array using JsonTextWriter , but don't want to add any other dll as part of my solution.

  [{ "id": "slide-img-1", "client": "nature beauty", "desc": "nature beauty photography" },
  { "id": "slide-img-2", "client": "nature beauty", "desc": "add your description here" },
  { "id": "slide-img-3", "client": "nature beauty", "desc": "add your description here" },
  { "id": "slide-img-4", "client": "nature beauty", "desc": "add your description here" },
  { "id": "slide-img-5", "client": "nature beauty", "desc": "add your description here" },
  { "id": "slide-img-6", "client": "nature beauty", "desc": "add your description here" },
  { "id": "slide-img-7", "client": "nature beauty", "desc": "add your description here"}];

Thanks,

Ashish

score 4 · Answer 1 · edited May 23 '17 at 12:22

4

You can use a JavaScriptSerializer:

Assuming the entity in your array is something like:

public class Entity 
{
  public string id { get; set; }
  public string client { get; set; }
  public string desc {get; set; }

  [ScriptIgnore]
  public string PropertyThatIsIgnored { get;set; }
}

Then it is useable like so:

Entity[] entities = ...;
JavaScriptSerializer serializer = new JavaScriptSerializer();
string json = serializer.Serialize(entities);

Alternatively, if more complex serialization is required, you may consider using a DataContractJsonSerializer, since it allows more extensibility when serializing / deserializing.

edited May 23 '17 at 12:22

Community

1
1

answered Jan 26 '12 at 12:17

Rich O'Kelly

41,274
9
83
114

I have List where I have multiple variables. I want to have id,client and desc only. – ashish.chotalia Jan 26 '12 at 12:28
@ashish.chotalia I have updated my answer to show how a property can be ignored, however if you wish to change property names I'd advise using the `DataContractJsonSerializer`. – Rich O'Kelly Jan 26 '12 at 12:33
Yups, that works. Can you please left me know how can I auto generate id ? – ashish.chotalia Jan 26 '12 at 12:35
@ashish.chotalia please ask a separate SO question for that, a lot more information will be required - at what point you wish to generate the id, how it will be mapped back to your entity etc. – Rich O'Kelly Jan 26 '12 at 12:42

score 2 · Answer 2 · answered Jan 26 '12 at 12:16

2

Use JavaScriptSerializer class that comes with .NET framework.

Have a look here.

var js = new JavaScriptSerializer();
string myJson = js.Serialize(new string[] {"A", "B", "C"});

answered Jan 26 '12 at 12:16

Aliostad

80,612
21
160
208

Create JSon array from code behind file

2 Answers2