>>>>Hi,
>>>>
>>>>I have been Googling on the topic of how to serialize a dataset to JSon, then store it in the local storage and then convert it back to the dataset.
>>>>
>>>>In some posts I see people use JsonConvert() and in some other cases there is a code to "manually' convert dataset to a string. Which method is more efficient, in your opinion? In one thread (on Stackoverflow) the person says that JsonConvert() stores the column name for each column and each row into a string. This seems to be a pretty big waste of storage (given that the local storage is limited).
>>>>What do you think?
>>
>>Firstly I wouldn't try to convert a dataset to Json - use as simple a class as possible. Don't know if you are using EF - that provides an easy way for this.
>>
>>WebApi automatically used NewtonSoft.Json to convert C# objects to Json if that type is requested (or set as the default type). The column name has to be repeated for each property - that's the nature of Json. In practice it's not a problem - still more compact to send over the wire than XML.
>>
>>I'm routinely storing arrays of 200~ objects (each with 10-12 properties) in local storage on the browser under one key. Only problem is that if you want to modify one object you have to load them all, make the change, and re-save - but again I've not found it too process intensive.
>>
>>HTH,
>>Viv
>
>I looked at my code (which I have done years ago) and here is what I have (simplified):
>
>1. Creating SQL Data adapter:
>

> idbAdapter = new SqlDataAdapter(sqlSelectString, connectionString);
>

>
>2. Fill dataset from the data adapter:
>

>DataSet oDataSet = new DataSet();
>objAdapter.Fill(oDataSet);
>

>
>Do you think I can skip step 2 and convert data adapter to JSON?

I am re-reading your message, the paragraph of storing arrays to local storage. Maybe, instead of Filling dataset, I can fill an array? Then store the array to the local storage. (I am just talking to myself :)