Pass List to KeyValuePair

Jassim Al Rahma 1,461 Reputation points
2022-10-24T10:03:45.913+00:00

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

.NET MAUI
.NET MAUI
A Microsoft open-source framework for building native device applications spanning mobile, tablet, and desktop.
2,139 questions
C#
C#
An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.
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Accepted answer
  1. Leon Lu (Shanghai Wicresoft Co,.Ltd.) 58,011 Reputation points Microsoft Vendor
    2022-10-26T02:59:54.203+00:00

    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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