[Tips] How to read Json File With C# in easy tutorial

JSON (JavaScript Object Notation) is a lightweight data-interchange format. It is easy for humans to read and write. It is easy for machines to parse and generate. It is based on a subset of the JavaScript Programming Language, Standard ECMA-262 3rd Edition - December 1999.

JSON is a text format that is completely language independent but uses conventions that are familiar to programmers of the C-family of languages, including C, C++, C#, Java, JavaScript, Perl, Python, and many others.

How to use c# read json file

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These properties make JSON an ideal data-interchange language. JSON is built on two structures:

- A collection of name/value pairs. In various languages, this is realized as an object, record, struct, dictionary, hash table, keyed list, or associative array.
- An ordered list of values. In most languages, this is realized as an array, vector, list, or sequence. 

C# is my favorite language, and this will help use do much projects will much uses.
This topic will be help you easy to read JSon file!

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Json Format File:

 {
    
    "1": {
        "result":
        {  
            "ITEM_ID":"CNSK",
            "NAME":"C\u1ea9m nang s\u1ef1 ki\u1ec7n",
            "PRODUCT_CODE":"FS",
            "ID_INGAME":"6,1,5572",
            "TYPE":"1",
            "START_TIME":null,
            "END_TIME":null}
        },
        "0":1
    }
    
    -> json["1"].result.ITEM_ID = "CNSK" ;
    -> json["1"].result.NAME = "Cẩm nang sự kiện";
    -> json["1"].START_TIME = "";
    https://learntechtips.com/mda/api/get_itemsIDbyName?NAME=C%E1%BA%A9m%20
    
    
    

Source Code:

    private clsItem GetInfoItemByName(string name)
    {
        // phải có try catch vì khi trả dữ liệu về json[0]            
        try
        { 
    
           clsItem item = new clsItem();
    
           if (name.ToString() == "")
               return null;
    
           string strURL = 
             "https://learntechtips.com/mda/api/get_itemsIDbyName?NAME=" 
             + name + "&PRODUCT_CODE=FS";
          
          var json = GetJSonFromServer(strURL);                
    
          if (json == null)
              return null;
    
    
          if (json["0"] == 0)
              return null;
    
          item.szItemID = json["1"].result.ITEM_ID;
          item.szName = json["1"].result.NAME;
          item.szIdIngame = json["1"].result.ID_INGAME;
          item.szType = json["1"].result.TYPE;
          item.szStartTime = json["1"].result.START_TIME;
          item.szEndTime = json["1"].result.END_TIME;
          item.szProductCode = json["1"].result.PRODUCT_CODE;
    
          return item;
        } catch (Exception ex)
        {            
          
           return null;
        }
    } 
    
    private dynamic GetJSonFromServer(string strUrl)
    {
        try
        {                
            WebClient wb = new WebClient();             
            var data = wb.DownloadString(strUrl);
    
            var json = System.Web.Helpers.Json.Decode(data);                                
            return json;
        }
        catch (Exception ex)
        {                               
             return null;
         }
    }
    

clsItem Class:

public class clsItem
        {
            private string _szItemID;
            private string _szName;
            private string _szProductCode;
            private string _szidIngame;
            private string _sztype;
            private string _szStartTime;
            private string _szEndTime;
    
            public string szEndTime
            {
                get { return _szEndTime; }
                set { _szEndTime = value; }
            }
    
            public string szStartTime
            {
                get { return _szStartTime; }
                set { _szStartTime = value; }
            }
    
            public string szType
            {
                get { return _sztype; }
                set { _sztype = value; }
            }
    
            public string szIdIngame
            {
                get { return _szidIngame; }
                set { _szidIngame = value; }
            }
    
            public string szProductCode
            {
                get { return _szProductCode; }
                set { _szProductCode = value; }
            }
    
            public string szName
            {
                get { return _szName; }
                set { _szName = value; }
            }
           
            public string szItemID
            {
                get { return _szItemID; }
                set { _szItemID = value; }
            }
        }
    

Thank you for reading this post. I hope you found it helpful and easy to follow. If you have any feedback or questions about How to read Json File With C# in easy tutorial , please share them in the comments below. I would love to hear from you and discuss this topic further

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