Connection test working.

Voile.Patchouli/Data/VoileDataException.cs

@@ -0,0 +1,21 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Voile.Common;
+
+namespace Voile.Patchouli.Data
+{
+
+	[Serializable]
+	public class VoileDataException : VoileException
+	{
+		public VoileDataException() { }
+		public VoileDataException(string message) : base(message) { }
+		public VoileDataException(string message, Exception inner) : base(message, inner) { }
+		protected VoileDataException(
+		  System.Runtime.Serialization.SerializationInfo info,
+		  System.Runtime.Serialization.StreamingContext context) : base(info, context) { }
+	}
+}

Voile.Storage.Sqlite/SqliteDataStorage.cs

@@ -0,0 +1,63 @@
+using Microsoft.Data.Sqlite;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Voile.Patchouli.Data;
+
+namespace Voile.Storage.Sqlite
+{
+	internal class SqliteDataStorage : IVoileDataStorage
+	{
+		private readonly SqliteConnectionStringBuilder connectionStringBuilder;
+
+		public SqliteDataStorage(SqliteConnectionStringBuilder connectionStringBuilder) 
+		{
+			this.connectionStringBuilder = connectionStringBuilder;
+		}
+
+		public Exception Ping()
+		{
+			SqliteConnection conn = new SqliteConnection(connectionStringBuilder.ConnectionString);
+			conn.Open();
+
+			bool tableAlreadyExists = false;
+
+			using (SqliteCommand selectMaster = conn.CreateCommand())
+			{
+				selectMaster.CommandText = "SELECT rootpage FROM sqlite_master WHERE name = 'a_connection_test'";
+				SqliteDataReader sqliteDataReader = selectMaster.ExecuteReader();
+				tableAlreadyExists = sqliteDataReader.Read();
+				sqliteDataReader.Close();
+				selectMaster.Dispose();
+			}
+
+			if (!tableAlreadyExists)
+			{
+				using (SqliteCommand createTableCommand = conn.CreateCommand())
+				{
+					createTableCommand.CommandText = "create table a_connection_test\r\n(\r\n    serial    integer                        not null\r\n        constraint a_connection_test_pk\r\n            primary key autoincrement,\r\n    dateadded TEXT default CURRENT_TIMESTAMP not null,\r\n    hostname  TEXT                           not null\r\n);\r\n\r\n";
+					int v = createTableCommand.ExecuteNonQuery();
+				}
+			}
+
+			using (SqliteCommand insertCommand = conn.CreateCommand())
+			{
+				insertCommand.CommandText = "INSERT INTO a_connection_test (hostname) VALUES (@hostname)";
+				insertCommand.Parameters.AddWithValue("@hostname", Environment.MachineName);
+				int v = insertCommand.ExecuteNonQuery();
+				if (v != 1)
+				{
+					insertCommand.Dispose();
+					conn.Dispose();
+					return new VoileDataException("Failed to do a test INSERT");
+				}
+			}
+
+			conn.Close();
+			conn.Dispose();
+			return null;
+		}
+	}
+}

Voile.Storage.Sqlite/SqliteDataStorageFactory.cs

@@ -19,7 +19,18 @@ namespace Voile.Storage.Sqlite
     {
         public IVoileDataStorage CreateDataStorage()
         {
-            throw new NotImplementedException();
+            if (string.IsNullOrEmpty(FilePath) || string.IsNullOrWhiteSpace(FilePath))
+            {
+                throw new ArgumentNullException(String.Format("{0} should not be empty.", nameof(FilePath)));
+            }
+            if (scsb == null)
+            {
+                scsb = new SqliteConnectionStringBuilder();
+                scsb.DataSource = FilePath;
+                scsb.Mode = SqliteOpenMode.ReadWriteCreate;
+                scsb.Pooling = true;
+            }
+			return new SqliteDataStorage(scsb);
         }
 
         [Description("The path to the SQLite database file. If it doesn't exist, it will be created")]

Voile.Storage.Sqlite/Voile.Storage.Sqlite.csproj

@@ -8,6 +8,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.Data.Sqlite.Core" Version="10.0.2" />
+    <PackageReference Include="SQLitePCLRaw.bundle_e_sqlite3" Version="3.0.2" />
   </ItemGroup>
 
   <ItemGroup>

Voile/FirstRunWizard.Designer.cs

@@ -288,7 +288,7 @@
 			// dbSettingsErrorLabel
 			// 
 			dbSettingsErrorLabel.AutoSize = true;
-			dbSettingsErrorLabel.Location = new Point(3, 87);
+			dbSettingsErrorLabel.Location = new Point(3, 79);
 			dbSettingsErrorLabel.Name = "dbSettingsErrorLabel";
 			dbSettingsErrorLabel.Size = new Size(74, 15);
 			dbSettingsErrorLabel.TabIndex = 9;
@@ -306,7 +306,7 @@
 			// 
 			// dbTestButton
 			// 
-			dbTestButton.Location = new Point(252, 70);
+			dbTestButton.Location = new Point(3, 97);
 			dbTestButton.Name = "dbTestButton";
 			dbTestButton.Size = new Size(93, 32);
 			dbTestButton.TabIndex = 2;
@@ -316,9 +316,9 @@
 			// 
 			// dbSettingsPropertyGrid
 			// 
-			dbSettingsPropertyGrid.Location = new Point(3, 108);
+			dbSettingsPropertyGrid.Location = new Point(3, 135);
 			dbSettingsPropertyGrid.Name = "dbSettingsPropertyGrid";
-			dbSettingsPropertyGrid.Size = new Size(342, 273);
+			dbSettingsPropertyGrid.Size = new Size(342, 246);
 			dbSettingsPropertyGrid.TabIndex = 1;
 			// 
 			// label6

Voile/FirstRunWizard.cs

@@ -129,6 +129,7 @@ namespace Voile
 				case 3:
 					loadFileButton.Visible = selectedDataStorage.CanSaveFile.Enable;
 					dbSettingsErrorLabel.Text = "";
+					buttonNext.Enabled = dataStorageConnectionSucessful;
 					if (voileDataStorageFactory == null)
 					{
 						dbSettingsPropertyGrid.SelectedObject = selectedDataStorage.GetPluginInstance();
@@ -224,28 +225,31 @@ namespace Voile
 
 		private void buttonNext_Click(object sender, EventArgs e)
 		{
-			if (currentTabPage == 0)
+			switch (currentTabPage)
 			{
-				//Wir sind auf der Willkommensseite, hier wird ausgewählt ob Anfänger oder Experte.
+				case 0:
-				//Es wird nach der Lizenz gefragt
+					//Wir sind auf der Willkommensseite, hier wird ausgewählt ob Anfänger oder Experte.
-				DisplayTabPage(1);
+					//Es wird nach der Lizenz gefragt
-			}
+					DisplayTabPage(1);
-			else if (currentTabPage == 1)
+					break;
-			{
+				case 1:
-				//Hier soll der Nutzer auswählen ob einfach oder schwierig.
+					//Hier soll der Nutzer auswählen ob einfach oder schwierig.
-				if (beginnerMode)
+					if (beginnerMode)
-				{
+					{
-					//TODO: Automatisch SQLite und Directory Storage auswählen
+						//TODO: Automatisch SQLite und Directory Storage auswählen
-				}
+					}
-				else
+					else
-				{
+					{
-					DisplayTabPage(2);
+						DisplayTabPage(2);
-				}
+					}
-			}
+					break;
-			else if (currentTabPage == 2)
+				case 2:
-			{
+					//Hier soll der Nutzer auswählen, welche DB verwendet werden soll.
-				//Hier soll der Nutzer auswählen, welche DB verwendet werden soll.
+					DisplayTabPage(3);
-				DisplayTabPage(3);
+					break;
+				default:
+					MessageBox.Show(String.Format("Don't know how to proceed from page {0}. This is a bug in Voile, please report it.", currentTabPage), "Voile onboarding", MessageBoxButtons.OK, MessageBoxIcon.Error);
+					break;
 			}
 		}
 
@@ -341,6 +345,7 @@ namespace Voile
 				{
 					dbSettingsErrorLabel.Text = "The selected plugin is not a Data Storage plugin. This is a bug in voile, please report it.";
 					dbTestTrafficLight.Image = Resources.TRFFC10C_1_32x32x4;
+					RefreshView();
 					return;
 				}
 				voileDataStorageFactory = newDs;
@@ -355,6 +360,7 @@ namespace Voile
 			{
 				dbSettingsErrorLabel.Text = ex.Message;
 				dbTestTrafficLight.Image = Resources.TRFFC10C_1_32x32x4;
+				RefreshView();
 				return;
 			}
 
@@ -365,6 +371,7 @@ namespace Voile
 				{
 					dbSettingsErrorLabel.Text = pingResult.Message;
 					dbTestTrafficLight.Image = Resources.TRFFC10C_1_32x32x4;
+					RefreshView();
 					return;
 				}
 			}
@@ -376,8 +383,9 @@ namespace Voile
 			}
 
 			dbSettingsErrorLabel.Text = "Database connection sucessful!";
-			pictureBox2.Image = Resources.TRFFC10A_1_32x32x4;       //grüne Ampel
+			dbTestTrafficLight.Image = Resources.TRFFC10A_1_32x32x4;       //grüne Ampel
 			dataStorageConnectionSucessful = true;
+			RefreshView();
 		}
 
 		private void buttonBack_Click(object sender, EventArgs e)