diff --git a/Netch/Forms/ServerForm.cs b/Netch/Forms/ServerForm.cs
index bd461800..63142a33 100644
--- a/Netch/Forms/ServerForm.cs
+++ b/Netch/Forms/ServerForm.cs
@@ -32,7 +32,7 @@ namespace Netch.Forms
             _saveActions.Add(PortTextBox, s => Server.Port = ushort.Parse((string) s));
         }
 
-        protected void CreateTextBox(string name, string remark, Func<string, bool> check, Action<object> save, string value, int width = InputBoxWidth)
+        protected void CreateTextBox(string name, string remark, Func<string, bool> check, Action<string> save, string value, int width = InputBoxWidth)
         {
             _controlLines++;
 
@@ -45,7 +45,7 @@ namespace Netch.Forms
                 Text = value
             };
             _checkActions.Add(textBox, check);
-            _saveActions.Add(textBox, save);
+            _saveActions.Add(textBox, o => save.Invoke((string) o));
             ConfigurationGroupBox.Controls.AddRange(
                 new Control[]
                 {
@@ -62,7 +62,7 @@ namespace Netch.Forms
             );
         }
 
-        protected void CreateComboBox(string name, string remark, List<string> values, Func<string, bool> parse, Action<object> save, string value, int width = InputBoxWidth)
+        protected void CreateComboBox(string name, string remark, List<string> values, Func<string, bool> parse, Action<string> save, string value, int width = InputBoxWidth)
         {
             _controlLines++;
 
@@ -79,7 +79,7 @@ namespace Netch.Forms
             comboBox.SelectedIndex = values.IndexOf(value);
             comboBox.DrawItem += Utils.Utils.DrawCenterComboBox;
             _checkActions.Add(comboBox, parse);
-            _saveActions.Add(comboBox, save);
+            _saveActions.Add(comboBox, o => save.Invoke((string) o));
             ConfigurationGroupBox.Controls.AddRange(
                 new Control[]
                 {
@@ -96,7 +96,7 @@ namespace Netch.Forms
             );
         }
 
-        protected void CreateCheckBox(string name, string remark, Action<object> save, bool value)
+        protected void CreateCheckBox(string name, string remark, Action<bool> save, bool value)
         {
             _controlLines++;
 
@@ -108,7 +108,7 @@ namespace Netch.Forms
                 Checked = value,
                 Text = remark
             };
-            _saveActions.Add(checkBox, save);
+            _saveActions.Add(checkBox, o => save.Invoke((bool) o));
             ConfigurationGroupBox.Controls.AddRange(
                 new Control[]
                 {
diff --git a/Netch/Servers/Shadowsocks/Form/ShadowsocksForm.cs b/Netch/Servers/Shadowsocks/Form/ShadowsocksForm.cs
index 20d0ef21..4adbef01 100644
--- a/Netch/Servers/Shadowsocks/Form/ShadowsocksForm.cs
+++ b/Netch/Servers/Shadowsocks/Form/ShadowsocksForm.cs
@@ -12,20 +12,20 @@ namespace Netch.Servers.Shadowsocks.Form
             Server = server;
             CreateTextBox("Password", "Password",
                 s => true,
-                s => server.Password = (string) s,
+                s => server.Password = s,
                 server.Password);
             CreateComboBox("EncryptMethod", "Encrypt Method",
                 SSGlobal.EncryptMethods,
                 s => SSGlobal.EncryptMethods.Contains(s),
-                s => server.EncryptMethod = (string) s,
+                s => server.EncryptMethod = s,
                 server.EncryptMethod);
             CreateTextBox("Plugin", "Plugin",
                 s => true,
-                s => server.Plugin = (string) s,
+                s => server.Plugin = s,
                 server.Plugin);
             CreateTextBox("PluginsOption", "Plugin Options",
                 s => true,
-                s => server.PluginOption = (string) s,
+                s => server.PluginOption = s,
                 server.PluginOption);
         }
     }
diff --git a/Netch/Servers/ShadowsocksR/Form/ShadowsocksRForm.cs b/Netch/Servers/ShadowsocksR/Form/ShadowsocksRForm.cs
index 423969cb..d775fb73 100644
--- a/Netch/Servers/ShadowsocksR/Form/ShadowsocksRForm.cs
+++ b/Netch/Servers/ShadowsocksR/Form/ShadowsocksRForm.cs
@@ -12,30 +12,30 @@ namespace Netch.Servers.ShadowsocksR.Form
             Server = server;
             CreateTextBox("Password", "Password",
                 s => true,
-                s => server.Password = (string) s,
+                s => server.Password = s,
                 server.Password);
             CreateComboBox("EncryptMethod", "Encrypt Method",
                 SSRGlobal.EncryptMethods,
                 s => SSRGlobal.EncryptMethods.Contains(s),
-                s => server.EncryptMethod = (string) s,
+                s => server.EncryptMethod = s,
                 server.EncryptMethod);
             CreateComboBox("Protocol", "Protocol",
                 SSRGlobal.Protocols,
                 s => SSRGlobal.Protocols.Contains(s),
-                s => server.Protocol = (string) s,
+                s => server.Protocol = s,
                 server.Protocol);
             CreateTextBox("ProtocolParam", "Protocol Param",
                 s => true,
-                s => server.ProtocolParam = (string) s,
+                s => server.ProtocolParam = s,
                 server.ProtocolParam);
             CreateComboBox("OBFS", "OBFS",
                 SSRGlobal.OBFSs,
                 s => SSRGlobal.OBFSs.Contains(s),
-                s => server.OBFS = (string) s,
+                s => server.OBFS = s,
                 server.OBFS);
             CreateTextBox("OBFSParam", "OBFS Param",
                 s => true,
-                s => server.OBFSParam = (string) s,
+                s => server.OBFSParam = s,
                 server.OBFSParam);
         }
     }
diff --git a/Netch/Servers/VMess/Form/VMessForm.cs b/Netch/Servers/VMess/Form/VMessForm.cs
index d01e74df..24b39016 100644
--- a/Netch/Servers/VMess/Form/VMessForm.cs
+++ b/Netch/Servers/VMess/Form/VMessForm.cs
@@ -12,50 +12,50 @@ namespace Netch.Servers.VMess.Form
             Server = server;
             CreateTextBox("UserId", "User ID",
                 s => true,
-                s => server.UserID = (string) s,
+                s => server.UserID = s,
                 server.UserID);
             CreateTextBox("AlterId", "Alter ID",
                 s => int.TryParse(s, out _),
-                s => server.AlterID = int.Parse((string) s),
+                s => server.AlterID = int.Parse(s),
                 server.AlterID.ToString(),
                 76);
             CreateComboBox("EncryptMethod", "Encrypt Method",
                 VMessGlobal.EncryptMethods,
                 s => VMessGlobal.EncryptMethods.Contains(s),
-                s => server.EncryptMethod = (string) s,
+                s => server.EncryptMethod = s,
                 server.EncryptMethod);
             CreateComboBox("TransferProtocol", "Transfer Protocol",
                 VMessGlobal.TransferProtocols,
                 s => VMessGlobal.TransferProtocols.Contains(s),
-                s => server.TransferProtocol = (string) s,
+                s => server.TransferProtocol = s,
                 server.TransferProtocol);
             CreateComboBox("FakeType", "Fake Type",
                 VMessGlobal.FakeTypes,
                 s => VMessGlobal.FakeTypes.Contains(s),
-                s => server.FakeType = (string) s,
+                s => server.FakeType = s,
                 server.FakeType);
             CreateTextBox("Host", "Host",
                 s => true,
-                s => server.Host = (string) s,
+                s => server.Host = s,
                 server.Host);
             CreateTextBox("Path", "Path",
                 s => true,
-                s => server.Path = (string) s,
+                s => server.Path = s,
                 server.Path);
             CreateComboBox("QUICSecurity", "QUIC Security",
                 VMessGlobal.QUIC,
                 s => VMessGlobal.QUIC.Contains(s),
-                s => server.QUIC = (string) s,
+                s => server.QUIC = s,
                 server.QUIC);
             CreateTextBox("QUICSecret", "QUIC Secret",
                 s => true,
-                s => server.QUICSecret = (string) s,
+                s => server.QUICSecret = s,
                 server.QUICSecret);
             CreateCheckBox("UseMux", "Use Mux",
-                s => server.UseMux = (bool) s,
+                s => server.UseMux = s,
                 server.UseMux);
             CreateCheckBox("TLSSecure", "TLS Secure",
-                s => server.TLSSecure = (bool) s,
+                s => server.TLSSecure = s,
                 server.TLSSecure);
         }
     }
diff --git a/Test/Tests.cs b/Test/Tests.cs
index 7b0a626d..de036dfe 100644
--- a/Test/Tests.cs
+++ b/Test/Tests.cs
@@ -2,6 +2,8 @@
 using System.Windows.Forms;
 using Netch.Servers.ShadowsocksR.Form;
 using Netch.Servers.ShadowsocksR;
+using Netch.Servers.VMess;
+using Netch.Servers.VMess.Form;
 using Netch.Utils;
 using NUnit.Framework;
 
@@ -15,12 +17,36 @@ namespace Test
         {
             i18N.Load("zh-CN");
 
-            var server = (ShadowsocksR) new SSRUtil().ParseUri(@"ssr://MTI3LjAuMC4xOjEyMzQ6YXV0aF9hZXMxMjhfbWQ1OmFlcy0xMjgtY2ZiOnRsczEuMl90aWNrZXRfYXV0aDpZV0ZoWW1KaS8_b2Jmc3BhcmFtPVluSmxZV3QzWVRFeExtMXZaUSZyZW1hcmtzPTVyV0w2Sy1WNUxpdDVwYUg").First();
-            server.ProtocolParam = "ProtocolParam";
+            var server = ParseVMessUri();
 
             Application.EnableVisualStyles();
             Application.SetCompatibleTextRenderingDefault(false);
-            Application.Run(new ShadowsocksRForm(server));
+            Application.Run(new VMessForm(server));
+        }
+
+        private static ShadowsocksR ParseSSRUri()
+        {
+            return (ShadowsocksR) new SSRUtil().ParseUri(@"ssr://MTI3LjAuMC4xOjEyMzQ6YXV0aF9hZXMxMjhfbWQ1OmFlcy0xMjgtY2ZiOnRsczEuMl90aWNrZXRfYXV0aDpZV0ZoWW1KaS8_b2Jmc3BhcmFtPVluSmxZV3QzWVRFeExtMXZaUSZyZW1hcmtzPTVyV0w2Sy1WNUxpdDVwYUg").First();
+        }
+
+        private static VMess ParseVMessUri()
+        {
+            /*
+{
+"v": "2",
+"ps": "备注别名",
+"add": "111.111.111.111",
+"port": "32000",
+"id": "1386f85e-657b-4d6e-9d56-78badb75e1fd",
+"aid": "100",
+"net": "tcp",
+"type": "none",
+"host": "www.bbb.com",
+"path": "/",
+"tls": "tls"
+} 
+             */
+            return (VMess) new VMessUtil().ParseUri(@"vmess://eyAidiI6ICIyIiwgInBzIjogIuWkh+azqOWIq+WQjSIsICJhZGQiOiAiMTExLjExMS4xMTEuMTExIiwgInBvcnQiOiAiMzIwMDAiLCAiaWQiOiAiMTM4NmY4NWUtNjU3Yi00ZDZlLTlkNTYtNzhiYWRiNzVlMWZkIiwgImFpZCI6ICIxMDAiLCAibmV0IjogInRjcCIsICJ0eXBlIjogIm5vbmUiLCAiaG9zdCI6ICJ3d3cuYmJiLmNvbSIsICJwYXRoIjogIi8iLCAidGxzIjogInRscyIgfQ==").First();
         }
     }
 }
\ No newline at end of file