Pass List to KeyValuePair

Question

Hi,

I want to pass the .NET MAUI Contacts and I want to send all the Contacts from device to the remote database I looping through each contact then their emails and phones will kill the performance and will be take time so I was thinking if there is a way to send the entire List of emails and List of phones at once using the KeyValuePair?

var content = new FormUrlEncodedContent(new[]  
{  
    new KeyValuePair<string, List<Phones>>("phones", all_phones),  
    new KeyValuePair<string, List<Emails>>("emails", all_emails),  
});  

Thanks,
Jassim

Answer 1

Hello,

but how can I use StringContent together with my below KeyValuePair?

If you want to use new KeyValuePair<string, string> format. You need to install Newtonsoft.Json nuget package and serialize List<Phones> and List<Emails> to JSON string like following code.

   string PhoneBodyContent= JsonConvert.SerializeObject(all_phones);  
           string EmailsBodyContent = JsonConvert.SerializeObject(all_emails);  
           
           var content = new FormUrlEncodedContent(new[]  
          {  
            new KeyValuePair<string, string>("source_uuid", "source_uuid"),  
             new KeyValuePair<string, string>("emails", PhoneBodyContent),  
             new KeyValuePair<string, string>("emails", EmailsBodyContent),  
        });  

If sever side receive this string. you need to deserialize Json to List<Phones> and List<Emails> like following code.

   List<ContactPhone> d = JsonConvert.DeserializeObject<List<Phones>>(PhoneBodyContent);  

Best Regards,

Leon Lu

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