How to join and perform an operation between JSON data in C#? -


i'm dealing linq-to-entities, querying 2 different entities. 1 returns data , other returns addvalues, have references both newtonsoft.json , system.data.objets: var query1 returns data , var query2 returns addvalues. debugging can see that:

data = [{"key":"tf","value":221},{"key":"ba","value":108}];  addvalues = [{"key":"tf","value":2},{"key":"ba","value":1.5}];

how obtain new string/object joining "key" , performing operation between values data , addvalues? result of query should calculatedresult.

result = [{"key":"tf","value":221+2},{"key":"ba","value":108+1.5}];  calculatedresult = [{"key":"tf","value":223},{"key":"ba","value":109.5}];

important note: can sure both arrays have same number of items, not ordered key

the following snippet work, assuming each element in data , addvalues has both key , value field.

public class foo {     public string key;     public float value; } class program {     static void main(string[] args)     {         var data = "[{\"key\":\"tf\",\"value\":221},{\"key\":\"ba\",\"value\":108}]";         var addvalue = "[{\"key\":\"tf\",\"value\":2},{\"key\":\"ba\",\"value\":1.5}]";          var obj1 = jsonconvert.deserializeobject<list<foo>>(data);         var obj2 = jsonconvert.deserializeobject<list<foo>>(addvalue);         var new_obj = (from in obj1                        b in obj2                        a.key == b.key                        select new foo { key = a.key, value = a.value + b.value }).tolist();         console.writeline(jsonconvert.serializeobject(new_obj, formatting.indented));      } }

output:

[   {     "key": "tf",     "value": 223.0   },   {     "key": "ba",     "value": 109.5   } ]

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