winzer/elwig
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Add QueryWindow

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This commit is contained in:
Lorenz Stechauner
2023-07-14 19:54:12 +02:00
parent 592df9e56d
commit 8c0df674ec
5 changed files with 88 additions and 4 deletions
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4
Elwig/Helpers/AppDbContext.cs
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@ -45,6 +45,8 @@ namespace Elwig.Helpers {
public DateTime SavedLastWriteTime { get; private set; }
public bool HasBackendChanged => SavedLastWriteTime != LastWriteTime;
public static string ConnectionString => $"Data Source=\"{App.Config.DatabaseFile}\"; Foreign Keys=True; Mode=ReadWrite; Cache=Default";
public AppDbContext() {
if (App.Config.DatabaseLog != null) {
try {
@ -62,7 +64,7 @@ namespace Elwig.Helpers {
}
protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder) {
optionsBuilder.UseSqlite($"Data Source=\"{App.Config.DatabaseFile}\"; Foreign Keys=True; Mode=ReadWrite; Cache=Default");
optionsBuilder.UseSqlite(ConnectionString);
optionsBuilder.UseLazyLoadingProxies();
optionsBuilder.LogTo(Log, LogLevel.Information);
base.OnConfiguring(optionsBuilder);

8
Elwig/Windows/MainWindow.xaml
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@ -10,7 +10,7 @@
<Style TargetType="Button">
<Setter Property="FontSize" Value="14"/>
<Setter Property="Padding" Value="9,3"/>
<Setter Property="Height" Value="27"/>
<Setter Property="Height" Value="32"/>
<Setter Property="Width" Value="200"/>
</Style>
</Window.Resources>
@ -47,8 +47,10 @@
<Button x:Name="DeliveryListButton" Content="Lieferungungen" Click="DeliveryListButton_Click" IsEnabled="False"
Margin="50,280,0,0" VerticalAlignment="Top" HorizontalAlignment="Left"/>
<Button x:Name="PdfButton" Content="PDF Erzeugen" Click="PdfButton_Click" Tag="Print"
Margin="50,320,0,0" VerticalAlignment="Top" HorizontalAlignment="Left"/>
Margin="260,160,0,0" VerticalAlignment="Top" HorizontalAlignment="Left"/>
<Button x:Name="TestWindowButton" Content="Test Fenster" Click="TestWindowButton_Click"
Margin="50,360,0,0" VerticalAlignment="Top" HorizontalAlignment="Left"/>
Margin="260,200,0,0" VerticalAlignment="Top" HorizontalAlignment="Left"/>
<Button x:Name="QueryWindowButton" Content="Datenbankabfragen" Click="QueryWindowButton_Click"
Margin="260,240,0,0" VerticalAlignment="Top" HorizontalAlignment="Left"/>
</Grid>
</Window>

5
Elwig/Windows/MainWindow.xaml.cs
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@ -47,5 +47,10 @@ namespace Elwig.Windows {
var w = new TestWindow();
w.Show();
}
private void QueryWindowButton_Click(object sender, RoutedEventArgs evt) {
var w = new QueryWindow();
w.Show();
}
}
}

19
Elwig/Windows/QueryWindow.xaml Normal file
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@ -0,0 +1,19 @@
<Window x:Class="Elwig.Windows.QueryWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="Datenbankabfragen - Elwig" Height="450" Width="800">
<Grid>
<TextBox x:Name="QueryInput" Text="SELECT * FROM v_delivery"
AcceptsReturn="True" VerticalScrollBarVisibility="Visible" TextWrapping="Wrap"
HorizontalAlignment="Stretch" VerticalAlignment="Top" Margin="10,10,120,10" Height="100"
FontFamily="Cascadia Code Light" FontSize="13"/>
<Button x:Name="QueryButton" Content="Abfragen"
HorizontalAlignment="Right" VerticalAlignment="Top" Margin="10,10,10,10"
Click="QueryButton_Click" Height="100" Width="100"
FontSize="14"/>
<DataGrid x:Name="DataList"
AutoGenerateColumns="False" HeadersVisibility="Column" IsReadOnly="True" GridLinesVisibility="None" SelectionMode="Single"
CanUserDeleteRows="False" CanUserResizeRows="False" CanUserAddRows="False"
HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Margin="10,120,10,10"/>
</Grid>
</Window>

56
Elwig/Windows/QueryWindow.xaml.cs Normal file
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@ -0,0 +1,56 @@
using Elwig.Helpers;
using Microsoft.Data.Sqlite;
using System;
using System.Collections.Generic;
using System.Data.Common;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
namespace Elwig.Windows {
public partial class QueryWindow : Window {
public QueryWindow() {
InitializeComponent();
}
private void QueryButton_Click(object sender, RoutedEventArgs evt) {
try {
ExecuteQuery(QueryInput.Text);
} catch (Exception e) {
MessageBox.Show(e.Message, "Fehler beim Ausführen", MessageBoxButton.OK, MessageBoxImage.Error);
}
}
private void ExecuteQuery(string sqlQuery) {
var rows = new List<object[]>();
IList<DbColumn> header;
using (var cnx = new SqliteConnection(AppDbContext.ConnectionString)) {
cnx.Open();
var cmd = cnx.CreateCommand();
cmd.CommandText = sqlQuery;
using var reader = cmd.ExecuteReader();
header = reader.GetColumnSchema();
while (reader.Read()) {
var values = new object[reader.FieldCount];
reader.GetValues(values);
rows.Add(values);
}
}
var styleRight = new Style();
styleRight.Setters.Add(new Setter(TextBlock.TextAlignmentProperty, TextAlignment.Right));
DataList.Columns.Clear();
for (int i = 0; i < header.Count; i++) {
var h = header[i];
DataList.Columns.Add(new DataGridTextColumn {
Header = h.ColumnName,
Binding = new Binding($"[{i}]"),
CellStyle = (h.DataTypeName == "INTEGER" || h.DataTypeName == "REAL") ? styleRight : null,
});
}
DataList.ItemsSource = rows;
}
}
}