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C# WPF Partial declaration must not specify different base class

Hi,

I am trying to learn how to make a WPF application. I am having a few issues one of them being the error message "Partil declaration of WPF_Test.MainWindow must not specify different base classes".

The code below is an example of a very quick WPF application that gives this error message. My application has more code in but even this simple application is being a pain! Please see the code below.

Any help would be great!

M

<RibbonWindow x:Class="WPF_Test.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525">
    <Grid>
        
    </Grid>
</RibbonWindow>

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Controls.Ribbon;
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 WPF_Test
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
        }
    }
}

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0
mcs26
Asked:
mcs26
1 Solution
 
Gautham JanardhanCommented:
if u see ur xaml it inherits from RibbonWindow , while ur code behind is from Window, change that to RibbonWindow

public partial class MainWindow : RibbonWindow
    {
        public MainWindow()
        {
            InitializeComponent();
        }
    }

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1
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