private async void Button1_Click(object sender, EventArgs e) { try { using (var client = ServicesFactory.CreateForWebRequest <Test.ITestService>("https://127.0.0.1:5001/api/test")) { client.DisableSSL = true; #if (USAGE1) var test1 = await client.Service.Test("ac"); var test2 = await client.Service.Test2(new Test.TestData() { test = 12 }); #elif (USAGE2) var test1 = await client.Service.Test("ac"); var test2 = await client.Service.Test2(new Test.TestData() { test = 12 }); #endif label1.Text = $"{test1} {test2.test}"; } } catch (Exception ee) { MessageBox.Show(ee.Message); } }