Elwig: Add LogWindow

Elwig/Helpers/Utils.cs

@@ -539,6 +539,16 @@ namespace Elwig.Helpers {
             }
         }
 
+        public static List<EventLogEntry> GetLogEntries() {
+            using var log = new EventLog {
+                Log = "Application",
+                Source = ".NET Runtime",
+            };
+            return log.Entries.Cast<EventLogEntry>()
+                .Where(e => e.Message.StartsWith("Application: Elwig.exe"))
+                .ToList();
+        }
+
         public static int GetEntityIdetifierForPk(params object?[] primaryKey) {
             var pk = primaryKey.Select(k => k?.GetHashCode() ?? 0).ToArray();
             return ((IStructuralEquatable)pk).GetHashCode(EqualityComparer<int>.Default);

Elwig/Windows/LogWindow.xaml

@@ -0,0 +1,34 @@
+<Window x:Class="Elwig.Windows.LogWindow"
+        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:local="clr-namespace:Elwig.Windows"
+        Title="Fehler-Protokoll - Elwig" Height="600" Width="1000"
+        Loaded="Window_Loaded">
+    <Grid>
+        <Grid.ColumnDefinitions>
+            <ColumnDefinition/>
+            <ColumnDefinition Width="5"/>
+            <ColumnDefinition/>
+        </Grid.ColumnDefinitions>
+
+        <DataGrid x:Name="EventList" AutoGenerateColumns="False" HeadersVisibility="Column" IsReadOnly="True" GridLinesVisibility="None" SelectionMode="Single"
+                  CanUserDeleteRows="False" CanUserResizeRows="False" CanUserAddRows="False"
+                  SelectionChanged="EventList_SelectionChanged"
+                  Margin="10,10,5,10">
+            <DataGrid.Columns>
+                <DataGridTextColumn Header="Ebene" Binding="{Binding Event.EntryType}" Width="60"/>
+                <DataGridTextColumn Header="Zeitpunkt" Binding="{Binding Event.TimeGenerated, StringFormat='{}{0:dd.MM.yyyy HH:mm:ss}'}" Width="120"/>
+                <DataGridTextColumn Header="Gerät" Binding="{Binding Event.MachineName}" Width="120"/>
+                <DataGridTextColumn Header="Fehler" Binding="{Binding ExceptionName}" Width="200"/>
+                <DataGridTextColumn Header="Beschreibung" Binding="{Binding ExceptionMessage}" Width="200"/>
+                <DataGridTextColumn Header="Herkunft" Binding="{Binding Location}" Width="200"/>
+            </DataGrid.Columns>
+        </DataGrid>
+
+        <GridSplitter Grid.Column="1" HorizontalAlignment="Stretch" VerticalAlignment="Stretch"/>
+
+        <TextBox x:Name="EventData" Grid.Column="2" Margin="5,10,10,10" IsReadOnly="True"
+                 HorizontalScrollBarVisibility="Visible" VerticalScrollBarVisibility="Visible"/>
+    </Grid>
+</Window>

Elwig/Windows/LogWindow.xaml.cs

@@ -0,0 +1,44 @@
+using Elwig.Helpers;
+using System.Diagnostics;
+using System.Linq;
+using System.Windows;
+
+namespace Elwig.Windows {
+    public partial class LogWindow : Window {
+
+        public LogWindow() {
+            InitializeComponent();
+            WindowState = WindowState.Maximized;
+        }
+
+        private void Window_Loaded(object sender, RoutedEventArgs evt) {
+            var log = Utils.GetLogEntries();
+            EventList.ItemsSource = log
+                .Select(e => new {
+                    Event = e,
+                    Lines = e.Message.Split('\n').ToArray(),
+                })
+                .Select(e => new {
+                    e.Event,
+                    Exception = e.Lines.FirstOrDefault(l => l.StartsWith("Exception Info: "))?[16..].Trim().Split(':', 2),
+                    Location = e.Lines.FirstOrDefault(l => l.StartsWith("   at Elwig."))?[5..].Trim(),
+                })
+                .Select(e => new {
+                    e.Event,
+                    e.Exception,
+                    ExceptionName = e.Exception?[0].Trim(),
+                    ExceptionMessage = e.Exception?.Length >= 2 ? e.Exception?[1].Trim() : null,
+                    e.Location,
+                })
+                .OrderByDescending(e => e.Event.TimeGenerated)
+                .ToList();
+            EventList.SelectedIndex = 0;
+        }
+
+        private void EventList_SelectionChanged(object sender, RoutedEventArgs evt) {
+            var t = EventList.SelectedItem.GetType();
+            var p = t.GetProperty("Event")!;
+            EventData.Text = ((EventLogEntry)p.GetValue(EventList.SelectedItem)!).Message;
+        }
+    }
+}

Elwig/Windows/MainWindow.xaml

@@ -32,6 +32,7 @@
                 <MenuItem Header="Über"/>
                 <MenuItem x:Name="Menu_Help_Update" Header="Nach Updates suchen" Click="Menu_Help_Update_Click"/>
                 <MenuItem x:Name="Menu_Help_Smtp" Header="E-Mail-Einstellungen testen" Click="Menu_Help_Smtp_Click"/>
+                <MenuItem x:Name="Menu_Help_Log" Header="Fehler-Protokoll anzeigen" Click="Menu_Help_Log_Click"/>
                 <Separator/>
                 <MenuItem x:Name="Menu_Help_Config" Header="Konfigurationsdatei öffnen..." Click="Menu_Help_Config_Click"/>
                 <MenuItem x:Name="Menu_Help_Directory" Header="Konfigurationsspeicherort öffnen..." Click="Menu_Help_Directory_Click"/>

Elwig/Windows/MainWindow.xaml.cs

@@ -90,6 +90,11 @@ namespace Elwig.Windows {
             } catch { }
         }
 
+        private void Menu_Help_Log_Click(object sender, RoutedEventArgs evt) {
+            var w = new LogWindow();
+            w.Show();
+        }
+
         private async void Menu_Scale_SetDateTime_Click(object sender, RoutedEventArgs evt) {
             if (App.CommandScales.Count == 0) {
                 MessageBox.Show("Es sind keine geeigneten Waagen verfügbar!", "Datum und Uhrzeit setzen", MessageBoxButton.OK, MessageBoxImage.Error);