Which is the correct way to call WCF service

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C#

EndpointAddress _endpoint = new EndpointAddress("net.tcp://" + szWord_Operation_Ip + "/CalcService");
var channel = new ChannelFactory<Process_Word_Document.ICalcService>(_binding, _endpoint);
  var _client = channel.CreateChannel();
 _client.Update_Document_Properties(szFilePath);

OR

C#

EndpointAddress _endpoint = new EndpointAddress("net.tcp://" + szWord_Operation_Ip + "/CalcService");
using (Process_Word_Document.CalcServiceClient _client = new Process_Word_Document.CalcServiceClient(_binding, _endpoint))
                _client.Update_Document_Properties(szFilePath);

I just want to know the Difference between these calling method
which one should I prefer

What I have tried:

checked https://stackoverflow.com/questions/21884177/best-practice-to-call-wcf-service

Posted 27-May-18 20:53pm

kedar001

Updated 28-May-18 7:23am

v3

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sajeetharan · Answer 1 · 2018-05-28T07:25:00

Second way you mentioned is the prefered way to call a WCF service. You need to create a client first and call the method from the client,

EndpointAddress _endpoint = new EndpointAddress("net.tcp://" + szWord_Operation_Ip + "/CalcService");
using (Process_Word_Document.CalcServiceClient _client = new Process_Word_Document.CalcServiceClient(_binding, _endpoint))
_client.Update_Document_Properties(szFilePath)