未找到WPF ShowDilaog()。

Question

我在这个窗口中使用了MahApps.Metro，当我点击一个按钮时，我想显示SecondMainWindow，但是，我不知道该怎么办。显示Dilaog 方法没有找到我当我添加一个新的WPF窗口与出MahApps.Metro的ShowDilag()方法将发现，它工作正常的问题是我不能ShowDilag()显示一个窗口，包含MahApps.Metro什么是错的代码？

这里是我用来显示SecondMainWindow的按钮点击的代码。

SecondMainWindow SMainWindow = new SecondMainWindow();

        SMainWindow.ShowDialog();

这个错误会出现

Severity    Code    Description Project File    Line    Suppression State
Error   CS1061  'SecoundMainWindow' does not contain a definition for 'ShowDialog' and no accessible extension method 'ShowDialog' accepting a first argument of type 'SecoundMainWindow' could be found (are you missing a using directive or an assembly reference?)  
OneAppWPF   C:\Users\mypc\Desktop\SolucionApp\OneAppWPF\MainWindow.xaml.cs  83  Active

SecoundMainWindow的xaml代码。

<Controls:MetroWindow  x:Class="OneAppWPF.SecondMainWindow"
        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"
        xmlns:local="clr-namespace:OneAppWPF"
         xmlns:Controls="clr-namespace:MahApps.Metro.Controls;assembly=MahApps.Metro"
        mc:Ignorable="d"
        xmlns:iconPacks="http://metro.mahapps.com/winfx/xaml/iconpacks"


        Title="Second MainWindow" Height="450" Width="800">

    <Window.Resources>
        <Style x:Key="LargeTileStyle" TargetType="Controls:Tile">
            <Setter Property="Width" Value="300" />
            <Setter Property="Height" Value="125" />
            <Setter Property="TitleFontSize" Value="18" />
            <Setter Property="FontWeight" Value="Bold" />
        </Style>

        <Style x:Key="SmallTileStyle" TargetType="Controls:Tile">
            <Setter Property="Width" Value="147" />
            <Setter Property="Height" Value="125" />
            <Setter Property="TitleFontSize" Value="10" />
        </Style>




    </Window.Resources>


    <Controls:MetroWindow.LeftWindowCommands>
        <Controls:WindowCommands>
            <Button Content="settings" />
        </Controls:WindowCommands>
    </Controls:MetroWindow.LeftWindowCommands>


    <Grid x:Name="MainGridId">


    </Grid>
</Controls:MetroWindow>

Answer 1

我发现错误SecoundMainWindow应该从MetroWindow继承。

public partial class SecoundMainWindow : MetroWindow
{
    public TestMainWindow()
    {
        InitializeComponent();
    }
}