From c23e688e59ae891d1dc9d7031a37416911ce58d2 Mon Sep 17 00:00:00 2001
From: Ryan Poole <rmp135@gmail.com>
Date: Sat, 24 Feb 2018 15:55:54 +0000
Subject: [PATCH] Global setting for command timeouts.

---
 RPForEachDB/App.config                        | 11 ++++
 RPForEachDB/AppState.cs                       | 36 +++++++++++++
 RPForEachDB/ConnectionManager.xaml            | 36 -------------
 RPForEachDB/MainWindow.xaml                   |  4 +-
 RPForEachDB/MainWindow.xaml.cs                |  9 ++--
 RPForEachDB/Properties/Settings.Designer.cs   | 12 +++++
 RPForEachDB/Properties/Settings.settings      |  3 ++
 RPForEachDB/RPForEachDB.csproj                |  8 +--
 RPForEachDB/SQLTasks.cs                       |  9 ++++
 RPForEachDB/SettingsWindow.xaml               | 53 +++++++++++++++++++
 ...Manager.xaml.cs => SettingsWindow.xaml.cs} | 35 ++++++++++--
 RPForEachDB/StateManager.cs                   | 25 ---------
 12 files changed, 166 insertions(+), 75 deletions(-)
 create mode 100644 RPForEachDB/AppState.cs
 delete mode 100644 RPForEachDB/ConnectionManager.xaml
 create mode 100644 RPForEachDB/SettingsWindow.xaml
 rename RPForEachDB/{ConnectionManager.xaml.cs => SettingsWindow.xaml.cs} (80%)
 delete mode 100644 RPForEachDB/StateManager.cs

diff --git a/RPForEachDB/App.config b/RPForEachDB/App.config
index 786e004..2a16068 100644
--- a/RPForEachDB/App.config
+++ b/RPForEachDB/App.config
@@ -2,6 +2,10 @@
 <configuration>
   <configSections>
     
+  
+      <sectionGroup name="userSettings" type="System.Configuration.UserSettingsGroup, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" >
+          <section name="RPForEachDB.Properties.Settings" type="System.Configuration.ClientSettingsSection, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" allowExeDefinition="MachineToLocalUser" requirePermission="false" />
+      </sectionGroup>
   </configSections>
   <connectionStrings />
   <startup>
@@ -20,4 +24,11 @@
     </roleManager>
   </system.web>
   
+<userSettings>
+        <RPForEachDB.Properties.Settings>
+                <setting name="CommandTimeout" serializeAs="String">
+                        <value>30</value>
+                </setting>
+        </RPForEachDB.Properties.Settings>
+    </userSettings>
 </configuration>
\ No newline at end of file
diff --git a/RPForEachDB/AppState.cs b/RPForEachDB/AppState.cs
new file mode 100644
index 0000000..34184aa
--- /dev/null
+++ b/RPForEachDB/AppState.cs
@@ -0,0 +1,36 @@
+using RPForEachDB.Properties;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace RPForEachDB
+{
+    public interface IAppState
+    {
+        IEnumerable<IServerModel> Servers { get; set; }
+        int CommandTimeout { get; set; }
+        void Save();
+    }
+    public class AppState: IAppState
+    {
+        public IEnumerable<IServerModel> Servers { get; set; }
+        public int CommandTimeout
+        {
+            get => Settings.Default.CommandTimeout;
+            set => Settings.Default.CommandTimeout = value;
+        }
+
+        public AppState()
+        {
+            Servers = Settings.Default.Servers ?? new IServerModel[0];
+        }
+
+        public void Save()
+        {
+            Settings.Default.Servers = Servers.Cast<ServerModel>().ToArray();
+            Settings.Default.Save();
+        }
+    }
+}
diff --git a/RPForEachDB/ConnectionManager.xaml b/RPForEachDB/ConnectionManager.xaml
deleted file mode 100644
index c3b5667..0000000
--- a/RPForEachDB/ConnectionManager.xaml
+++ /dev/null
@@ -1,36 +0,0 @@
-<Window x:Class="RPForEachDB.ConnectionManager"
-        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
-        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
-        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
-        xmlns:local="clr-namespace:RPForEachDB"
-        mc:Ignorable="d"
-        Title="Connection Manager" Height="300" Width="400" ResizeMode="NoResize" WindowStartupLocation="CenterOwner">
-    <Grid>
-        <Grid.ColumnDefinitions>
-            <ColumnDefinition Width="auto"></ColumnDefinition>
-            <ColumnDefinition Width="*"></ColumnDefinition>
-        </Grid.ColumnDefinitions>
-        <ListBox Grid.Column="0" HorizontalAlignment="Left" ScrollViewer.HorizontalScrollBarVisibility="Hidden" BorderThickness="0" VerticalAlignment="Top" Width="100" Height="230" ItemsSource="{Binding Servers}" DisplayMemberPath="Name" SelectedValue="{Binding CurrentModel}" SelectedIndex="{Binding CurrentModelIndex, Mode=OneWay}" />
-        <Label Content="Server" Grid.Column="1" HorizontalAlignment="Left" Margin="10,47,0,0" VerticalAlignment="Top" RenderTransformOrigin="0.547,0.615"/>
-        <TextBox Grid.Column="1" Height="23" Margin="85,19,10,0" TextWrapping="Wrap" VerticalAlignment="Top" Text="{Binding CurrentModel.Name, UpdateSourceTrigger=PropertyChanged}"/>
-        <TextBox Grid.Column="1" Height="23" Margin="85,50,10,0" TextWrapping="Wrap" VerticalAlignment="Top" Text="{Binding CurrentModel.Server, UpdateSourceTrigger=PropertyChanged}"/>
-        <RadioButton GroupName="SecurityMode" IsChecked="{Binding IsWindowsAuthentication, Mode=TwoWay}" Content="Windows" Grid.Column="1" HorizontalAlignment="Left" Margin="85,110,0,0" VerticalAlignment="Top" Checked="OnSecurityModeRadioClick"/>
-        <RadioButton Name="SQLAuthenticationRadio" GroupName="SecurityMode" IsChecked="{Binding IsSQLAuthentication, Mode=TwoWay}" Content="SQL Server" Grid.Column="1" HorizontalAlignment="Left" Margin="85,130,0,0" VerticalAlignment="Top" Checked="OnSecurityModeRadioClick"/>
-        <Grid Name="CredentialsGrid" Grid.Column="1" Margin="10,150,10,35">
-            <Grid.ColumnDefinitions>
-                <ColumnDefinition Width="115*"/>
-            </Grid.ColumnDefinitions>
-            <TextBox Height="23" Margin="68,5,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Text="{Binding CurrentModel.Username, UpdateSourceTrigger=PropertyChanged}"/>
-            <TextBox Name="PasswordField" Height="23" Margin="68,31,0,0" VerticalAlignment="Top" Text="{Binding CurrentModel.Password, UpdateSourceTrigger=PropertyChanged}"/>
-            <Label Content="Username" HorizontalAlignment="Left" VerticalAlignment="Top" Grid.ColumnSpan="2"/>
-            <Label Content="Password" HorizontalAlignment="Left" Margin="0,28,0,0" VerticalAlignment="Top" RenderTransformOrigin="0.517,1.559" Width="63" Grid.ColumnSpan="2"/>
-            <Label Content="Passwords are stored in plain text." TextElement.Foreground="Red" Margin="41,54,0,0" HorizontalContentAlignment="Right" Height="26" VerticalAlignment="Top"/>
-        </Grid>
-        <Label Content="Name" Grid.Column="1" HorizontalAlignment="Left" Margin="10,16,0,0" VerticalAlignment="Top" RenderTransformOrigin="0.547,0.615"/>
-        <Button IsEnabled="{Binding IsDeleteEnabled}" Content="Delete" HorizontalAlignment="Left" Margin="85,236,0,0" Width="80" Grid.Column="1" RenderTransformOrigin="0.468,1.348" Click="OnDeleteBtnClick" Height="20" VerticalAlignment="Top"/>
-        <Button Content="Add New" HorizontalAlignment="Right" Margin="0,236,10,0" Width="80" Click="OnAddNewBtnClick" Height="20" VerticalAlignment="Top"/>
-        <Label Content="Security Mode" Grid.Column="1" HorizontalAlignment="Left" Margin="85,78,0,0" VerticalAlignment="Top"/>
-        <Button Content="Close" Margin="204,236,10,0" Grid.Column="1" RenderTransformOrigin="0.468,1.348" Click="OnCloseBtnClick" Height="20" VerticalAlignment="Top"/>
-    </Grid>
-</Window>
diff --git a/RPForEachDB/MainWindow.xaml b/RPForEachDB/MainWindow.xaml
index ddae7a2..efe91ac 100644
--- a/RPForEachDB/MainWindow.xaml
+++ b/RPForEachDB/MainWindow.xaml
@@ -17,9 +17,9 @@
                 <ColumnDefinition Width="*"></ColumnDefinition>
                 <ColumnDefinition Width="auto"></ColumnDefinition>
             </Grid.ColumnDefinitions>
-            <Button Grid.Column="0" Margin="0,0,5,0" Click="OnManageServersBtnClick">Manage Servers</Button>
+            <Button Grid.Column="0" Margin="0,0,5,0" Padding="5,0,5,0" Click="OnManageServersBtnClick" Content="Settings"/>
             <ComboBox ItemsSource="{Binding Servers}" SelectedValue="{Binding CurrentServer}" DisplayMemberPath="Name" Grid.Column="1"  Margin="0,0,5,0" VerticalAlignment="Top" HorizontalContentAlignment="Stretch" SelectionChanged="ServerComboOnChange" Height="27" />
-            <Button Grid.Column="2" IsEnabled="{Binding IsGetDatabaseEnabled}" Click="OnGetDatabasesBtnClick">Get Databases</Button>
+            <Button Grid.Column="2" Padding="5,0,5,0" IsEnabled="{Binding IsGetDatabaseEnabled}" Click="OnGetDatabasesBtnClick">Get Databases</Button>
         </Grid>
         <Grid Grid.Row="1">
             <Grid.ColumnDefinitions>
diff --git a/RPForEachDB/MainWindow.xaml.cs b/RPForEachDB/MainWindow.xaml.cs
index 4fc4086..42303b1 100644
--- a/RPForEachDB/MainWindow.xaml.cs
+++ b/RPForEachDB/MainWindow.xaml.cs
@@ -4,7 +4,6 @@
 using System.Threading.Tasks;
 using System.Windows;
 using System.Windows.Controls;
-//using Dapper;
 using System.Data.SqlClient;
 using System.ComponentModel;
 using System.IO;
@@ -16,7 +15,7 @@ namespace RPForEachDB
 {
     public partial class MainWindow : Window, INotifyPropertyChanged
     {
-        private readonly StateManager _appState;
+        private readonly IAppState _appState;
         public ObservableCollection<DatabaseGridItem> Databases { get; set; }
         public ObservableCollection<IServerModel> Servers { get; set; }
         private IServerModel _currentServer { get; set; }
@@ -76,8 +75,8 @@ private void NotifyPropertyChanged(string propertyName)
 
         public MainWindow()
         {
-            _sqlTasks = new SQLTasks();
-            _appState = new StateManager();
+            _appState = new AppState();
+            _sqlTasks = new SQLTasks(_appState);
             Servers = new ObservableCollection<IServerModel>(_appState.Servers);
             Databases = new ObservableCollection<DatabaseGridItem>();
             DataContext = this;
@@ -186,7 +185,7 @@ protected override void OnClosing(CancelEventArgs e)
 
         private void OnManageServersBtnClick(object sender, RoutedEventArgs e)
         {
-            new ConnectionManager(_appState)
+            new SettingsWindow(_appState)
             {
                 Owner = this
             }.ShowDialog();
diff --git a/RPForEachDB/Properties/Settings.Designer.cs b/RPForEachDB/Properties/Settings.Designer.cs
index 4d3a71b..1fdf06c 100644
--- a/RPForEachDB/Properties/Settings.Designer.cs
+++ b/RPForEachDB/Properties/Settings.Designer.cs
@@ -33,5 +33,17 @@ public RPForEachDB.ServerModel[] Servers {
                 this["Servers"] = value;
             }
         }
+        
+        [global::System.Configuration.UserScopedSettingAttribute()]
+        [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
+        [global::System.Configuration.DefaultSettingValueAttribute("30")]
+        public int CommandTimeout {
+            get {
+                return ((int)(this["CommandTimeout"]));
+            }
+            set {
+                this["CommandTimeout"] = value;
+            }
+        }
     }
 }
diff --git a/RPForEachDB/Properties/Settings.settings b/RPForEachDB/Properties/Settings.settings
index 0ff9246..29e20f1 100644
--- a/RPForEachDB/Properties/Settings.settings
+++ b/RPForEachDB/Properties/Settings.settings
@@ -5,5 +5,8 @@
     <Setting Name="Servers" Type="RPForEachDB.ServerModel[]" Scope="User">
       <Value Profile="(Default)" />
     </Setting>
+    <Setting Name="CommandTimeout" Type="System.Int32" Scope="User">
+      <Value Profile="(Default)">30</Value>
+    </Setting>
   </Settings>
 </SettingsFile>
\ No newline at end of file
diff --git a/RPForEachDB/RPForEachDB.csproj b/RPForEachDB/RPForEachDB.csproj
index c098b73..c08f419 100644
--- a/RPForEachDB/RPForEachDB.csproj
+++ b/RPForEachDB/RPForEachDB.csproj
@@ -74,8 +74,8 @@
     <Compile Include="ServerModel.cs" />
     <Compile Include="Settings.cs" />
     <Compile Include="SQLTasks.cs" />
-    <Compile Include="StateManager.cs" />
-    <Page Include="ConnectionManager.xaml">
+    <Compile Include="AppState.cs" />
+    <Page Include="SettingsWindow.xaml">
       <SubType>Designer</SubType>
       <Generator>MSBuild:Compile</Generator>
     </Page>
@@ -88,8 +88,8 @@
       <SubType>Code</SubType>
     </Compile>
     <Compile Include="ConnectionFactory.cs" />
-    <Compile Include="ConnectionManager.xaml.cs">
-      <DependentUpon>ConnectionManager.xaml</DependentUpon>
+    <Compile Include="SettingsWindow.xaml.cs">
+      <DependentUpon>SettingsWindow.xaml</DependentUpon>
     </Compile>
     <Compile Include="DatabaseGridItem.cs" />
     <Compile Include="MainWindow.xaml.cs">
diff --git a/RPForEachDB/SQLTasks.cs b/RPForEachDB/SQLTasks.cs
index 752ed15..084ec5f 100644
--- a/RPForEachDB/SQLTasks.cs
+++ b/RPForEachDB/SQLTasks.cs
@@ -9,11 +9,19 @@ namespace RPForEachDB
 {
     public class SQLTasks
     {
+        private readonly IAppState _appState;
+
+        public SQLTasks(IAppState appState)
+        {
+            _appState = appState;
+        }
+
         public IEnumerable<string> GetAllDatabases(IDbConnection connection)
         {
             var command = connection.CreateCommand();
             command.CommandType = CommandType.Text;
             command.CommandText = "SELECT Name FROM master.dbo.sysdatabases WHERE DATABASEPROPERTYEX(Name, 'Status') = 'ONLINE'";
+            command.CommandTimeout = _appState.CommandTimeout;
             using (var reader = command.ExecuteReader())
             {
                 while (reader.Read())
@@ -26,6 +34,7 @@ public void Execute(IDbConnection connection, string commandText)
             var command = connection.CreateCommand();
             command.CommandType = CommandType.Text;
             command.CommandText = commandText;
+            command.CommandTimeout = _appState.CommandTimeout;
             command.ExecuteNonQuery();
         }
     }
diff --git a/RPForEachDB/SettingsWindow.xaml b/RPForEachDB/SettingsWindow.xaml
new file mode 100644
index 0000000..dc57d9a
--- /dev/null
+++ b/RPForEachDB/SettingsWindow.xaml
@@ -0,0 +1,53 @@
+<Window x:Class="RPForEachDB.SettingsWindow"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:RPForEachDB"
+        mc:Ignorable="d"
+        Title="Settings" Height="330" Width="400" ResizeMode="NoResize" WindowStartupLocation="CenterOwner">
+    <Grid>
+        <Grid.ColumnDefinitions>
+            <ColumnDefinition Width="*"></ColumnDefinition>
+        </Grid.ColumnDefinitions>
+        <TabControl Grid.Column="0">
+            <TabItem Header="Servers" Margin="0,-2,-4,0">
+                <Grid>
+                    <Grid.ColumnDefinitions>
+                        <ColumnDefinition Width="auto"></ColumnDefinition>
+                        <ColumnDefinition Width="*"></ColumnDefinition>
+                    </Grid.ColumnDefinitions>
+                    <ListBox Grid.Column="0" HorizontalAlignment="Left" ScrollViewer.HorizontalScrollBarVisibility="Hidden" BorderThickness="0" VerticalAlignment="Top" Width="100" Height="230" ItemsSource="{Binding Servers}" DisplayMemberPath="Name" SelectedValue="{Binding CurrentModel}" SelectedIndex="{Binding CurrentModelIndex, Mode=OneWay}" />
+                    <Label Content="Server" Grid.Column="1" HorizontalAlignment="Left" Margin="10,47,0,0" VerticalAlignment="Top" RenderTransformOrigin="0.547,0.615"/>
+                    <TextBox Grid.Column="1" Height="23" Margin="85,19,10,0" TextWrapping="Wrap" VerticalAlignment="Top" Text="{Binding CurrentModel.Name, UpdateSourceTrigger=PropertyChanged}"/>
+                    <TextBox Grid.Column="1" Height="23" Margin="85,50,10,0" TextWrapping="Wrap" VerticalAlignment="Top" Text="{Binding CurrentModel.Server, UpdateSourceTrigger=PropertyChanged}"/>
+                    <RadioButton GroupName="SecurityMode" IsChecked="{Binding IsWindowsAuthentication, Mode=TwoWay}" Content="Windows" Grid.Column="1" HorizontalAlignment="Left" Margin="85,110,0,0" VerticalAlignment="Top" Checked="OnSecurityModeRadioClick"/>
+                    <RadioButton Name="SQLAuthenticationRadio" GroupName="SecurityMode" IsChecked="{Binding IsSQLAuthentication, Mode=TwoWay}" Content="SQL Server" Grid.Column="1" HorizontalAlignment="Left" Margin="85,130,0,0" VerticalAlignment="Top" Checked="OnSecurityModeRadioClick"/>
+                    <Grid Name="CredentialsGrid" Grid.Column="1" Margin="10,150,10,35">
+                        <Grid.ColumnDefinitions>
+                            <ColumnDefinition Width="115*"/>
+                        </Grid.ColumnDefinitions>
+                        <TextBox Height="23" Margin="68,5,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Text="{Binding CurrentModel.Username, UpdateSourceTrigger=PropertyChanged}"/>
+                        <TextBox Name="PasswordField" Height="23" Margin="68,31,0,0" VerticalAlignment="Top" Text="{Binding CurrentModel.Password, UpdateSourceTrigger=PropertyChanged}"/>
+                        <Label Content="Username" HorizontalAlignment="Left" VerticalAlignment="Top" Grid.ColumnSpan="2"/>
+                        <Label Content="Password" HorizontalAlignment="Left" Margin="0,28,0,0" VerticalAlignment="Top" RenderTransformOrigin="0.517,1.559" Width="63" Grid.ColumnSpan="2"/>
+                        <Label Content="Passwords are stored in plain text." TextElement.Foreground="Red" Margin="41,54,0,0" HorizontalContentAlignment="Right" Height="26" VerticalAlignment="Top"/>
+                    </Grid>
+                    <Label Content="Name" Grid.Column="1" HorizontalAlignment="Left" Margin="10,16,0,0" VerticalAlignment="Top" RenderTransformOrigin="0.547,0.615"/>
+                    <Button IsEnabled="{Binding IsDeleteEnabled}" Content="Delete" HorizontalAlignment="Left" Margin="85,236,0,0" Width="80" Grid.Column="1" RenderTransformOrigin="0.468,1.348" Click="OnDeleteBtnClick" Height="20" VerticalAlignment="Top"/>
+                    <Button Content="Add New" HorizontalAlignment="Right" Margin="0,236,10,0" Width="80" Click="OnAddNewBtnClick" Height="20" VerticalAlignment="Top"/>
+                    <Label Content="Security Mode" Grid.Column="1" HorizontalAlignment="Left" Margin="85,78,0,0" VerticalAlignment="Top"/>
+                    <Button Content="Close" Margin="204,236,10,0" Grid.Column="1" RenderTransformOrigin="0.468,1.348" Click="OnCloseBtnClick" Height="20" VerticalAlignment="Top"/>
+
+                </Grid>
+            </TabItem>
+            <TabItem Header="Global">
+                <Grid>
+                    <TextBox HorizontalAlignment="Left"  Height="23" PreviewTextInput="TextBox_PreviewTextInput" PreviewKeyDown="TextBox_PreviewKeyDown" PreviewMouseWheel="TextBox_PreviewMouseWheel" Margin="127,13,0,0" TextWrapping="Wrap" Text="{Binding CommandTimeout, Mode=TwoWay}" VerticalAlignment="Top" Width="251"/>
+                    <Label Content="Command Timeout" HorizontalAlignment="Left" Margin="10,10,0,0" VerticalAlignment="Top"/>
+                    <Button Content="Close"  Margin="304,236,10,0" Click="OnCloseBtnClick" Height="20" VerticalAlignment="Top"/>
+                </Grid>
+            </TabItem>
+        </TabControl>
+    </Grid>
+</Window>
diff --git a/RPForEachDB/ConnectionManager.xaml.cs b/RPForEachDB/SettingsWindow.xaml.cs
similarity index 80%
rename from RPForEachDB/ConnectionManager.xaml.cs
rename to RPForEachDB/SettingsWindow.xaml.cs
index 0070cc2..63731ba 100644
--- a/RPForEachDB/ConnectionManager.xaml.cs
+++ b/RPForEachDB/SettingsWindow.xaml.cs
@@ -2,9 +2,11 @@
 using System.Collections.Generic;
 using System.Collections.ObjectModel;
 using System.ComponentModel;
+using System.Diagnostics;
 using System.Linq;
 using System.Security;
 using System.Text;
+using System.Text.RegularExpressions;
 using System.Threading.Tasks;
 using System.Windows;
 using System.Windows.Controls;
@@ -17,9 +19,9 @@
 
 namespace RPForEachDB
 {
-    public partial class ConnectionManager : Window, INotifyPropertyChanged
+    public partial class SettingsWindow : Window, INotifyPropertyChanged
     {
-        private readonly StateManager appState;
+        private readonly IAppState appState;
 
         public event PropertyChangedEventHandler PropertyChanged;
 
@@ -55,12 +57,22 @@ public bool IsDeleteEnabled
             }
         }
 
+        public int CommandTimeout
+        {
+            get => appState.CommandTimeout;
+            set
+            {
+                appState.CommandTimeout = value;
+                NotifyPropertyChanged("CommandTimeout");
+            }
+        }
+
         public int CurrentModelIndex
         {
             get => Servers.IndexOf(CurrentModel);
         }
 
-        public ConnectionManager(StateManager appState)
+        public SettingsWindow(IAppState appState)
         {
             this.appState = appState;
             Servers = new ObservableCollection<IServerModel>(appState.Servers);
@@ -147,5 +159,22 @@ protected override void OnClosed(EventArgs e)
             base.OnClosed(e);
             appState.Save();
         }
+
+        private void TextBox_PreviewTextInput(object sender, TextCompositionEventArgs e)
+        {
+            e.Handled = !int.TryParse(e.Text, out var result);
+        }
+
+        private void TextBox_PreviewKeyDown(object sender, KeyEventArgs e)
+        {
+            e.Handled = e.Key == Key.Space;
+        }
+
+        private void TextBox_PreviewMouseWheel(object sender, MouseWheelEventArgs e)
+        {
+            var source = (TextBox)sender;
+            var newValue = int.Parse(source.Text) + (e.Delta < 0 ? -1 : 1);
+            source.Text = Math.Max(newValue, 0).ToString();
+        }
     }
 }
diff --git a/RPForEachDB/StateManager.cs b/RPForEachDB/StateManager.cs
deleted file mode 100644
index 8753601..0000000
--- a/RPForEachDB/StateManager.cs
+++ /dev/null
@@ -1,25 +0,0 @@
-using RPForEachDB.Properties;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-
-namespace RPForEachDB
-{
-    public class StateManager
-    {
-        public IEnumerable<IServerModel> Servers;
-
-        public StateManager()
-        {
-            Servers = Settings.Default.Servers ?? new IServerModel[0];
-        }
-
-        public void Save()
-        {
-            Settings.Default.Servers = Servers.Cast<ServerModel>().ToArray();
-            Settings.Default.Save();
-        }
-    }
-}