diff --git a/shadowsocks-csharp/Controller/Service/OnlineConfigResolver.cs b/shadowsocks-csharp/Controller/Service/OnlineConfigResolver.cs
index 480dc366..fe3e16c1 100644
--- a/shadowsocks-csharp/Controller/Service/OnlineConfigResolver.cs
+++ b/shadowsocks-csharp/Controller/Service/OnlineConfigResolver.cs
@@ -29,7 +29,12 @@ namespace Shadowsocks.Controller.Service
             try
             {
                 string str = await httpClient.GetStringAsync(url);
-                return Get(str);
+                var ret = Get(str);
+                foreach (var item in ret)
+                {
+                    item.group = url;
+                }
+                return ret;
             }
             catch (Exception e)
             {
@@ -62,11 +67,9 @@ namespace Shadowsocks.Controller.Service
         {
             var l = new List<Server>();
             if (o == null) return l;
-            try
-            {
+            if (IsServerObject(o))
                 return new List<Server> { o.ToObject<Server>() };
-            }
-            catch { };
+
             foreach (var kv in o)
             {
                 JToken v = kv.Value;
@@ -87,5 +90,10 @@ namespace Shadowsocks.Controller.Service
                     return SearchJArray(t as JArray);
             }
         }
+
+        private static bool IsServerObject(JObject o)
+        {
+            return new[] { "server", "server_port", "password", "method" }.All(i => o.ContainsKey(i));
+        }
     }
 }
diff --git a/shadowsocks-csharp/Controller/ShadowsocksController.cs b/shadowsocks-csharp/Controller/ShadowsocksController.cs
index 2728b3d0..c2f8e0d4 100644
--- a/shadowsocks-csharp/Controller/ShadowsocksController.cs
+++ b/shadowsocks-csharp/Controller/ShadowsocksController.cs
@@ -698,7 +698,7 @@ namespace Shadowsocks.Controller
                 .Concat(onlineServer)
                 );
             _config.index = _config.configs.IndexOf(selected);
-            Configuration.Save(_config);
+            SaveConfig(_config);
         }
 
         public async Task UpdateAllOnlineConfig()
@@ -714,7 +714,7 @@ namespace Shadowsocks.Controller
                 .Concat(r.SelectMany(s => s))
                 );
             _config.index = _config.configs.IndexOf(selected);
-            Configuration.Save(_config);
+            SaveConfig(_config);
         }
 
         public void SaveOnlineConfigSource(IEnumerable<string> vs)
diff --git a/shadowsocks-csharp/View/OnlineConfigForm.Designer.cs b/shadowsocks-csharp/View/OnlineConfigForm.Designer.cs
index f80e5ba6..f15503ce 100644
--- a/shadowsocks-csharp/View/OnlineConfigForm.Designer.cs
+++ b/shadowsocks-csharp/View/OnlineConfigForm.Designer.cs
@@ -35,8 +35,8 @@
             this.UpdateButton = new System.Windows.Forms.Button();
             this.AddButton = new System.Windows.Forms.Button();
             this.DeleteButton = new System.Windows.Forms.Button();
-            this.UpdateAllButton = new System.Windows.Forms.Button();
             this.OkButton = new System.Windows.Forms.Button();
+            this.UpdateAllButton = new System.Windows.Forms.Button();
             this.CancelButton = new System.Windows.Forms.Button();
             this.tableLayoutPanel1.SuspendLayout();
             this.SuspendLayout();
@@ -77,6 +77,7 @@
             this.UrlListBox.Name = "UrlListBox";
             this.UrlListBox.Size = new System.Drawing.Size(482, 344);
             this.UrlListBox.TabIndex = 0;
+            this.UrlListBox.SelectedIndexChanged += new System.EventHandler(this.UrlListBox_SelectedIndexChanged);
             // 
             // label1
             // 
@@ -110,6 +111,7 @@
             this.UpdateButton.TabIndex = 3;
             this.UpdateButton.Text = "Update";
             this.UpdateButton.UseVisualStyleBackColor = true;
+            this.UpdateButton.Click += new System.EventHandler(this.UpdateButton_Click);
             // 
             // AddButton
             // 
@@ -137,19 +139,7 @@
             this.DeleteButton.TabIndex = 5;
             this.DeleteButton.Text = "Delete";
             this.DeleteButton.UseVisualStyleBackColor = true;
-            // 
-            // UpdateAllButton
-            // 
-            this.UpdateAllButton.Dock = System.Windows.Forms.DockStyle.Fill;
-            this.UpdateAllButton.Location = new System.Drawing.Point(20, 428);
-            this.UpdateAllButton.Margin = new System.Windows.Forms.Padding(20, 5, 20, 5);
-            this.UpdateAllButton.MaximumSize = new System.Drawing.Size(0, 32);
-            this.UpdateAllButton.MinimumSize = new System.Drawing.Size(0, 32);
-            this.UpdateAllButton.Name = "UpdateAllButton";
-            this.UpdateAllButton.Size = new System.Drawing.Size(122, 32);
-            this.UpdateAllButton.TabIndex = 6;
-            this.UpdateAllButton.Text = "Update all";
-            this.UpdateAllButton.UseVisualStyleBackColor = true;
+            this.DeleteButton.Click += new System.EventHandler(this.DeleteButton_Click);
             // 
             // OkButton
             // 
@@ -164,6 +154,20 @@
             this.OkButton.Text = "OK";
             this.OkButton.UseVisualStyleBackColor = true;
             // 
+            // UpdateAllButton
+            // 
+            this.UpdateAllButton.Dock = System.Windows.Forms.DockStyle.Fill;
+            this.UpdateAllButton.Location = new System.Drawing.Point(20, 428);
+            this.UpdateAllButton.Margin = new System.Windows.Forms.Padding(20, 5, 20, 5);
+            this.UpdateAllButton.MaximumSize = new System.Drawing.Size(0, 32);
+            this.UpdateAllButton.MinimumSize = new System.Drawing.Size(0, 32);
+            this.UpdateAllButton.Name = "UpdateAllButton";
+            this.UpdateAllButton.Size = new System.Drawing.Size(122, 32);
+            this.UpdateAllButton.TabIndex = 6;
+            this.UpdateAllButton.Text = "Update all";
+            this.UpdateAllButton.UseVisualStyleBackColor = true;
+            this.UpdateAllButton.Click += new System.EventHandler(this.UpdateAllButton_Click);
+            // 
             // CancelButton
             // 
             this.CancelButton.Dock = System.Windows.Forms.DockStyle.Fill;
diff --git a/shadowsocks-csharp/View/OnlineConfigForm.cs b/shadowsocks-csharp/View/OnlineConfigForm.cs
index 782ef65e..0c23be10 100644
--- a/shadowsocks-csharp/View/OnlineConfigForm.cs
+++ b/shadowsocks-csharp/View/OnlineConfigForm.cs
@@ -39,6 +39,12 @@ namespace Shadowsocks.View
 
             if (idx >= UrlListBox.Items.Count) idx = 0;
             UrlListBox.SelectedIndex = idx;
+            SelectItem();
+        }
+
+        private void SelectItem()
+        {
+            UrlTextBox.Text = (string)UrlListBox.SelectedItem;
         }
 
         private bool ValidateUrl()
@@ -57,10 +63,11 @@ namespace Shadowsocks.View
 
         private bool Commit()
         {
-            if (!ValidateUrl()) return false;
-            
-            UrlListBox.Items[UrlListBox.SelectedIndex] = UrlTextBox.Text;
-            controller.SaveOnlineConfigSource(UrlListBox.Items.OfType<string>().Where(s=>!string.IsNullOrWhiteSpace(s)));
+            if (ValidateUrl())
+            {
+                UrlListBox.Items[UrlListBox.SelectedIndex] = UrlTextBox.Text;
+            }
+            controller.SaveOnlineConfigSource(UrlListBox.Items.OfType<string>().Where(s => !string.IsNullOrWhiteSpace(s)));
             LoadConfig();
             return true;
         }
@@ -72,5 +79,34 @@ namespace Shadowsocks.View
             UrlTextBox.Text = DefaultPrefix;
             UrlListBox.SelectedIndex = UrlListBox.Items.Count - 1;
         }
+
+        private void UpdateButton_Click(object sender, EventArgs e)
+        {
+            // update content, also update online config
+            Commit();
+
+            _ = controller.UpdateOnlineConfig(UrlTextBox.Text);
+        }
+
+        private void UrlListBox_SelectedIndexChanged(object sender, EventArgs e)
+        {
+            if (!UrlListBox.CanSelect)
+            {
+                return;
+            }
+            SelectItem();
+        }
+
+        private void DeleteButton_Click(object sender, EventArgs e)
+        {
+            int idx = UrlListBox.SelectedIndex;
+            UrlListBox.Items.RemoveAt(idx);
+            Commit();
+        }
+
+        private void UpdateAllButton_Click(object sender, EventArgs e)
+        {
+            _ = controller.UpdateAllOnlineConfig();
+        }
     }
 }