Added the possibility to create lists.

ILSpy/AssemblyListManager.cs

@@ -91,16 +91,18 @@ namespace ICSharpCode.ILSpy
 				});
 		}
 
-		public void CreateList(AssemblyList list)
+		public bool CreateList(AssemblyList list)
 		{
 			if (!AssemblyLists.Contains(list.ListName))
 			{
 				AssemblyLists.Add(list.ListName);
 				SaveList(list);
+				return true;
 			}
+			return false;
 		}
 
-		public void DeleteList(string Name)
+		public bool DeleteList(string Name)
 		{
 			if (AssemblyLists.Contains(Name))
 			{
@@ -118,7 +120,9 @@ namespace ICSharpCode.ILSpy
 						if (listElement != null)
 							listElement.Remove();
 					});
+				return true;
 			}
+			return false;
 		}
 	}
 }

ILSpy/CreateListDialog.xaml

@@ -0,0 +1,24 @@
+<Window
+	x:Class="ICSharpCode.ILSpy.CreateListDialog" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:controls="clr-namespace:ICSharpCode.ILSpy.Controls"
+	Title="New list"
+	Style="{DynamicResource DialogWindow}"
+	WindowStartupLocation="CenterOwner"
+	ResizeMode="NoResize"
+	Width="300"
+    Height="150"
+	FocusManager.FocusedElement="{Binding ElementName=listView}">
+    <Grid Margin="12,8">
+        <Grid.RowDefinitions>
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="Auto" />
+        </Grid.RowDefinitions>
+        <StackPanel>
+            <Label>Enter a list name:</Label>
+            <TextBox Margin="8,8" Name="ListName" TextChanged="TextBox_TextChanged"></TextBox>
+        </StackPanel>
+        <StackPanel Grid.Row="2" Orientation="Horizontal" HorizontalAlignment="Right" Margin="8,0">
+            <Button IsDefault="True" Margin="2,0" IsEnabled="False" Name="okButton" Click="OKButton_Click">Create</Button>
+            <Button IsCancel="True" Margin="2,0">Cancel</Button>
+        </StackPanel>
+    </Grid>
+</Window>

ILSpy/CreateListDialog.xaml.cs

@@ -0,0 +1,49 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Navigation;
+using System.Windows.Shapes;
+
+namespace ICSharpCode.ILSpy
+{
+	/// <summary>
+	/// Interaction logic for Create.xaml
+	/// </summary>
+	public partial class CreateListDialog : Window
+	{
+		public CreateListDialog()
+		{
+			InitializeComponent();
+		}
+
+		private void TextBox_TextChanged(object sender, TextChangedEventArgs e)
+		{
+			okButton.IsEnabled = !string.IsNullOrWhiteSpace(ListName.Text);
+		}
+
+		private void OKButton_Click(object sender, RoutedEventArgs e)
+		{
+			if (!string.IsNullOrWhiteSpace(ListName.Text))
+			{
+				this.DialogResult = true;
+			}
+		}
+
+		public string NewListName
+		{
+			get
+			{
+				return ListName.Text;
+			}
+		}
+
+	}
+}

ILSpy/ILSpy.csproj

@@ -108,6 +108,9 @@
     <Compile Include="Commands\ExportCommandAttribute.cs" />
     <Compile Include="Controls\SearchBox.cs" />
     <Compile Include="Controls\SortableGridViewColumn.cs" />
+    <Compile Include="CreateListDialog.xaml.cs">
+      <DependentUpon>CreateListDialog.xaml</DependentUpon>
+    </Compile>
     <Compile Include="Languages\CSharpLanguage.cs" />
     <Compile Include="DecompilationOptions.cs" />
     <Compile Include="ExtensionMethods.cs" />
@@ -268,6 +271,10 @@
     <Page Include="Controls\SearchBoxStyle.xaml">
       <DependentUpon>SearchBox.cs</DependentUpon>
     </Page>
+    <Page Include="CreateListDialog.xaml">
+      <SubType>Designer</SubType>
+      <Generator>MSBuild:Compile</Generator>
+    </Page>
     <Page Include="MainWindow.xaml" />
     <Page Include="OpenFromGacDialog.xaml" />
     <Page Include="OpenListDialog.xaml" />

ILSpy/OpenListDialog.xaml

@@ -5,7 +5,7 @@
 	WindowStartupLocation="CenterOwner"
 	ResizeMode="CanResizeWithGrip"
 	MinWidth="380"
-	MinHeight="150"
+	MinHeight="250"
 	Height="350"
 	Width="380"
 	FocusManager.FocusedElement="{Binding ElementName=listView}">

ILSpy/OpenListDialog.xaml.cs

@@ -55,7 +55,6 @@ namespace ICSharpCode.ILSpy
 		void OKButton_Click(object sender, RoutedEventArgs e)
 		{
 			this.DialogResult = true;
-			Close();
 		}
 
 		public string SelectedListName
@@ -152,12 +151,29 @@ namespace ICSharpCode.ILSpy
 
 		private void CreateButton_Click(object sender, RoutedEventArgs e)
 		{
+			CreateListDialog dlg = new CreateListDialog();
+			dlg.Owner = this;
+			dlg.Closing += (s, args) =>
+			{
+				if (dlg.DialogResult == true)
+				{
+					if (manager.AssemblyLists.Contains(dlg.NewListName))
+					{
+						args.Cancel = true;
+						MessageBox.Show("A list with the same name was found.", null, MessageBoxButton.OK);
+					}
+				}
+			};
+			if (dlg.ShowDialog() == true)
+			{
+				manager.CreateList(new AssemblyList(dlg.NewListName));
+			}
 
 		}
 
 		private void RemoveButton_Click(object sender, RoutedEventArgs e)
 		{
-			if(listView.SelectedItem != null)
+			if (listView.SelectedItem != null)
 				manager.DeleteList(listView.SelectedItem.ToString());
 		}