c# - DataContractJsonSerializer human-readable json -

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• how formatted json in .net using c#? 6 answers

basically dupe of this question 1 notable difference - have use datacontractjsonserializer.

a simple

using (var stream = new memorystream()) {     var serializer = new datacontractjsonserializer(typeof(person));     serializer.writeobject(stream, obj);     ...     return stream.toarray(); } 

produced single line json, e.g. (when saved in file)

...{"blah":"v", "blah2":"v2"}... 

what options make it

... {     "blah":"v",      "blah2":"v2" } ... 

i can think of post-processing... there easier option? e.g. similar formatting xml produced datacontractserializer ?

using (var stream = new memorystream()) {     var serializer = new datacontractjsonserializer(typeof(t));     // "beautify"     using (var writer = new somekindofwriter(stream))         serializer.writeobject(writer, obj);     ...     return stream.toarray(); } 

is there way make such somekindofwriter beautify json when needed?

https://stackoverflow.com/a/38538454/6627992

you may use following standard method getting formatted json

jsonreaderwriterfactory.createjsonwriter(stream stream, encoding encoding, bool ownsstream, bool indent, string indentchars)

only set "indent==true"

try this

    public readonly datacontractjsonserializersettings settings =              new datacontractjsonserializersettings             { usesimpledictionaryformat = true };      public void keep<tvalue>(tvalue item, string path)     {         try         {             using (var stream = file.open(path, filemode.create))             {                 var currentculture = thread.currentthread.currentculture;                 thread.currentthread.currentculture = cultureinfo.invariantculture;                  try                 {                     using (var writer = jsonreaderwriterfactory.createjsonwriter(                         stream, encoding.utf8, true, true, "  "))                     {                         var serializer = new datacontractjsonserializer(type, settings);                         serializer.writeobject(writer, item);                         writer.flush();                     }                 }                 catch (exception exception)                 {                     debug.writeline(exception.tostring());                 }                                 {                     thread.currentthread.currentculture = currentculture;                 }             }         }         catch (exception exception)         {             debug.writeline(exception.tostring());         }     } 

pay attention lines

    var currentculture = thread.currentthread.currentculture;     thread.currentthread.currentculture = cultureinfo.invariantculture;     ....     thread.currentthread.currentculture = currentculture; 

you should use invariantculture avoid exception during deserialization on computers different regional settings. example, invalid format of double or datetime cause them.

for deserializing

    public tvalue revive<tvalue>(string path, params object[] constructorargs)     {         try         {             using (var stream = file.openread(path))             {                 var currentculture = thread.currentthread.currentculture;                 thread.currentthread.currentculture = cultureinfo.invariantculture;                  try                 {                     var serializer = new datacontractjsonserializer(type, settings);                     var item = (tvalue) serializer.readobject(stream);                     if (equals(item, null)) throw new exception();                     return item;                 }                 catch (exception exception)                 {                     debug.writeline(exception.tostring());                     return (tvalue) activator.createinstance(type, constructorargs);                 }                                 {                     thread.currentthread.currentculture = currentculture;                 }             }         }         catch         {             return (tvalue) activator.createinstance(typeof (tvalue), constructorargs);         }     } 

thanks!