How to return JSON object from DataTable of Sql Command in .Net Core 3.1

Question

I want to return a JSON object while getting data from DataTable of Sql Command.

Here is my method:

       private static JSON ExecuteDatatableJSON(SqlCommand sqlCommand, int timeoutInSecs = 30)
       {
        DataTable dt = null;
        JSON json = null;

        try
        {
            dt = ExecuteDatatable(sqlCommand);
        }
        catch(Exception ex)
        {
            throw new Exception(ex.Message + ", Method: " + (new StackFrame().GetMethod().Name), ex);
        }

        json = JsonConvert.SerializeObject(dt); // this is the line causing issue

        return json;
        }

Answer 1

It requires to have DTO class with required number of properties and then loop over the Dto to bind the datatable fields with DTO properties.

here is the example code

    product = new Product
 {
     title = dataTable.Rows[0]["ItemName"].ToString(),
     body_html = dataTable.Rows[0]["BodyHtml"].ToString(),
     vendor = dataTable.Rows[0]["Vendor"].ToString(),
     product_type = dataTable.Rows[0]["ProductType"].ToString(),
     variants = new Variant[1],
     images = new Image[1]
 }