Fix Tezos/Ethereum receive view addresses doubling;

.gitignore

@@ -336,4 +336,4 @@ ASALocalRun/
 .mfractor/
 
 # Local History for Visual Studio
-.localhistory/
+.localhistory/.DS_Store

Atomex.Client.Wpf/Atomex.Client.Wpf.csproj

@@ -315,6 +315,7 @@
     <Compile Include="Common\BitmapExtensions.cs" />
     <Compile Include="Common\DecimalExtensions.cs" />
     <Compile Include="Common\DesignTime.cs" />
+    <Compile Include="Common\DistinctExtensions.cs" />
     <Compile Include="Common\Environment.cs" />
     <Compile Include="Common\Msi\MsiApi.cs" />
     <Compile Include="Common\Msi\MsiPackage.cs" />

Atomex.Client.Wpf/Common/DistinctExtensions.cs

@@ -0,0 +1,21 @@
+using System;
+using System.Collections.Generic;
+
+namespace Atomex.Client.Wpf.Common
+{
+    public static class DistinctExtensions
+    {
+        public static IEnumerable<TSource> DistinctBy<TSource, TKey>
+            (this IEnumerable<TSource> source, Func<TSource, TKey> keySelector)
+        {
+            HashSet<TKey> seenKeys = new HashSet<TKey>();
+            foreach (TSource element in source)
+            {
+                if (seenKeys.Add(keySelector(element)))
+                {
+                    yield return element;
+                }
+            }
+        }
+    }
+}

Atomex.Client.Wpf/ViewModels/ReceiveViewModels/EthereumReceiveViewModel.cs

@@ -38,7 +38,9 @@ public override Currency Currency
                         .GetFreeExternalAddressAsync(_currency.Name)
                         .WaitForResult();
 
-                    var receiveAddresses = activeTokenAddresses.Select(w => new WalletAddressViewModel(w, _currency.Format))
+                    var receiveAddresses = activeTokenAddresses
+                        .DistinctBy(wa => wa.Address)
+                        .Select(w => new WalletAddressViewModel(w, _currency.Format))
                         .Concat(activeAddresses.Select(w => new WalletAddressViewModel(w, _currency.Format)))
                         .ToList();
 

Atomex.Client.Wpf/ViewModels/ReceiveViewModels/TezosReceiveViewModel.cs

@@ -38,7 +38,9 @@ public override Currency Currency
                         .GetFreeExternalAddressAsync(_currency.Name)
                         .WaitForResult();
 
-                    var receiveAddresses = activeTokenAddresses.Select(w => new WalletAddressViewModel(w, _currency.Format))
+                    var receiveAddresses = activeTokenAddresses
+                        .DistinctBy(wa => wa.Address)
+                        .Select(w => new WalletAddressViewModel(w, _currency.Format))
                         .Concat(activeAddresses.Select(w => new WalletAddressViewModel(w, _currency.Format)))
                         .ToList();