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C#-Quelltext

<UserControl x:Class="Webinterface.MainPage"
    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"
    mc:Ignorable="d"
    d:DesignHeight="210" d:DesignWidth="220"
    Loaded="UserControl_Loaded">

    <Grid 
        x:Name="grd_main" 
        Background="White">
        <Grid.RowDefinitions>
            <RowDefinition Height="4*" />
            <RowDefinition  Height="2*" />
            <RowDefinition Height="14*" />
        </Grid.RowDefinitions>
        <Grid Name="grd_nav" Grid.Row="0">
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="*"/>
                <ColumnDefinition Width="2*" />
                <ColumnDefinition Width="*"/>
            </Grid.ColumnDefinitions>
            <Button 
                Name="btn_la"
                Grid.Column="0" Grid.Row="0" 
                Content="&lt;" 
                Margin="12, 6, 12, 6"
                Click="btn_la_Click"/>
            <Button 
                Name="btn_ra"
                Grid.Column="2" Grid.Row="0" 
                Content=">" 
                Margin="12, 6, 12, 6" 
                Click="btn_ra_Click" />
        </Grid>
        <Grid Grid.Row="1" Name="grd_week">
            <Grid.RowDefinitions>
                <RowDefinition />
            </Grid.RowDefinitions>
            <Grid.ColumnDefinitions>
                <ColumnDefinition />
                <ColumnDefinition />
                <ColumnDefinition />
                <ColumnDefinition />
                <ColumnDefinition />
                <ColumnDefinition />
                <ColumnDefinition />
            </Grid.ColumnDefinitions>
            <TextBlock Grid.Row="0" Grid.Column="0" Text="Mo" HorizontalAlignment="Center" VerticalAlignment="Center" />
            <TextBlock Grid.Row="0" Grid.Column="1" Text="Di" HorizontalAlignment="Center" VerticalAlignment="Center" />
            <TextBlock Grid.Row="0" Grid.Column="2" Text="Mi" HorizontalAlignment="Center" VerticalAlignment="Center" />
            <TextBlock Grid.Row="0" Grid.Column="3" Text="Do" HorizontalAlignment="Center" VerticalAlignment="Center" />
            <TextBlock Grid.Row="0" Grid.Column="4" Text="Fr" HorizontalAlignment="Center" VerticalAlignment="Center" />
            <TextBlock Grid.Row="0" Grid.Column="5" Text="Sa" HorizontalAlignment="Center" VerticalAlignment="Center" />
            <TextBlock Grid.Row="0" Grid.Column="6" Text="So" HorizontalAlignment="Center" VerticalAlignment="Center" />
        </Grid>
        <Grid Grid.Row="2" Name="grd_btns">
            <Grid.RowDefinitions>
                <RowDefinition Height="*" />
                <RowDefinition Height="*" />
                <RowDefinition Height="*" />
                <RowDefinition Height="*" />
                <RowDefinition Height="*" />
                <RowDefinition Height="*" />
            </Grid.RowDefinitions>
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="*" />
                <ColumnDefinition Width="*" />
                <ColumnDefinition Width="*" />
                <ColumnDefinition Width="*" />
                <ColumnDefinition Width="*" />
                <ColumnDefinition Width="*" />
                <ColumnDefinition Width="*" />
            </Grid.ColumnDefinitions>
        </Grid>
    </Grid>
</UserControl>

C#-Quelltext

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using System.Globalization;
//Service-Namespace
using Webinterface.DBService;

namespace Webinterface
{
    public partial class MainPage : UserControl
    {
        private DateTime dat;
        private DateTime tempdat;
        private TextBlock mon;
        private Button btn;
        private DBClient db;

        public MainPage()
        {
            InitializeComponent();
        }

        private void UserControl_Loaded(object sender, RoutedEventArgs e)
        {
            dat = new DateTime();
            dat = DateTime.Today;
            db = new DBClient();

            Refresh();
        }

        private void btn_la_Click(object sender, RoutedEventArgs e)
        {
            if ((int)dat.Month > 1)
                dat = new DateTime(dat.Year, (int)dat.Month - 1, dat.Day);
            else
                dat = new DateTime((int)dat.Year - 1, (int)dat.Month + 11, dat.Day);
            Refresh();
        }

        private void btn_ra_Click(object sender, RoutedEventArgs e)
        {
            if ((int)dat.Month < 12)
                dat = new DateTime(dat.Year, (int)dat.Month + 1, dat.Day);
            else
                dat = new DateTime((int)dat.Year + 1, (int)dat.Month - 11, dat.Day);
            Refresh();
        }

        private void Refresh()
        {
            //Monatsanzeige
            grd_nav.Children.Remove(mon);
            mon = new TextBlock();
            mon.Text = MonthToString(dat) + " " + dat.Year.ToString();
            grd_nav.Children.Add(mon);
            Grid.SetColumn(mon, 1);
            mon.HorizontalAlignment = HorizontalAlignment.Center;
            mon.VerticalAlignment = VerticalAlignment.Center;

            //Buttons
            tempdat = new DateTime(dat.Year, dat.Month, 1);
            int max = DateTime.DaysInMonth(dat.Year, dat.Month);
            grd_btns.Children.Clear();
            int k = (int)tempdat.DayOfWeek;
            if (k == 0)
                k = 7;
            k -= 1;

            int cou = 0;

            for (int i = 0; i < 6 && cou < max; ++i)
            {
                for (int j = 0; (j + k) < 7 && cou < max; ++j)
                {
                    btn = new Button();
                    btn.Content = cou + 1;
                    grd_btns.Children.Add(btn);
                    Grid.SetRow(btn, i);
                    Grid.SetColumn(btn, j + k);
                    cou++;
                }
                k = 0;
            }
            
            db.Lese_Buchungen_MonatAsync(dat);
            db.Lese_Buchungen_MonatCompleted += new EventHandler<Lese_Buchungen_MonatCompletedEventArgs>(db_Lese_Buchungen_MonatCompleted);

        }

        

        private static string MonthToString(DateTime date)
        {
            switch ((int)date.Month)
            {
                case 1: return "Januar";
                case 2: return "Februar";
                case 3: return "März";
                case 4: return "April";
                case 5: return "Mai";
                case 6: return "Juni";
                case 7: return "Juli";
                case 8: return "August";
                case 9: return "September";
                case 10: return "Oktober";
                case 11: return "November";
                case 12: return "Dezember";
                default: throw new ArgumentOutOfRangeException("(int)<Instanzname>.Month muss zwischen 1 und 12 liegen.");
            }
        }

        private void db_Lese_Buchungen_MonatCompleted(object sender, Lese_Buchungen_MonatCompletedEventArgs e)
        {
            for (int i = 0; i < DateTime.DaysInMonth(dat.Year, dat.Month); i++)
            {
                Button tempbtn;
                Color col = new Color();
                DateTime tempdat = new DateTime(dat.Year, dat.Month, i+1);
                tempbtn = grd_btns.Children[i] as Button;
                if (tempdat.DayOfWeek.Equals(DayOfWeek.Saturday) || tempdat.DayOfWeek.Equals(DayOfWeek.Sunday))
                {
                    col.A = 255;
                    col.R = 255;
                    col.G = 120;
                    col.B = 120;
                }

                else if (e.Result[i])
                {
                    col.A = 255;
                    col.R = 130;
                    col.G = 200;
                    col.B = 255;
                }

                else if(!e.Result[i])
                {
                    col.A = 255;
                    col.R = 100;
                    col.G = 255;
                    col.B = 100;
                }
                tempbtn.Background = new SolidColorBrush(col);
            }
        }
    }
}

C#-Quelltext

[OperationContract]
List<bool> Lese_Buchungen_Monat        (DateTime dat);

C#-Quelltext

<?xml version="1.0" encoding="utf-8"?>
<configuration>
    <system.web>
        <compilation debug="true" targetFramework="4.0" />
    </system.web>
    <system.serviceModel>
        <behaviors>
            <serviceBehaviors>
                <behavior name="MetadataBehavior">
                    <!-- Legen Sie den Wert unten auf "false" fest, um die Veröffentlichung von Metadateninformationen zu vermeiden, und entfernen Sie den Metadatenendpunkt oben vor der Bereitstellung. -->
                    <serviceMetadata httpGetEnabled="true"/>
                    <!-- Damit in Fehlern Ausnahmedetails zum Debuggen angezeigt werden, legen Sie den Wert unten auf "true" fest. Legen Sie ihn vor der Bereitstellung auf "false" fest, um die Veröffentlichung von Ausnahmeinformationen zu vermeiden. -->
                    <serviceDebug includeExceptionDetailInFaults="false"/>
                </behavior>
            </serviceBehaviors>
        </behaviors>
        <services>
            <service behaviorConfiguration="MetadataBehavior"
                     name="DB.DB">
                <endpoint binding="basicHttpBinding"
                          bindingConfiguration=""
                          name="httpEndpoint"
                          contract="DB.IDB" />
                <host>
                    <baseAddresses>
                        <add baseAddress="http://localhost:9000/DB" />
                    </baseAddresses>
                </host>
            </service>
        </services>
        <serviceHostingEnvironment multipleSiteBindingsEnabled="true" />
    </system.serviceModel>
    <system.webServer>
        <modules runAllManagedModulesForAllRequests="true"/>
    </system.webServer>
</configuration>