MainWindow.xaml

<Window x:Class="FileIconMOD.MainWindow"
        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:FileIconMOD"
        mc:Ignorable="d"
        Title="小新图标修改工具"
        Height="300"
        Width="500"
        ResizeMode="NoResize"
        WindowStyle="SingleBorderWindow">
    <Grid Background="AliceBlue">
        <Grid.RowDefinitions>
            <RowDefinition Height="*" />
            <RowDefinition Height="*" />
            <RowDefinition Height="*" />
            <RowDefinition Height="*" />

        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="100" />
            <ColumnDefinition Width="30" />
            <ColumnDefinition Width="*" />
        </Grid.ColumnDefinitions>

        <Label Grid.Row="0"
               Content="文件类型"
               HorizontalContentAlignment="Center"
               VerticalContentAlignment="Center"
               Margin="5"
               FontSize="15"/>
        <Label Grid.Row="1"
               Content="图标路径"
               HorizontalContentAlignment="Center"
               VerticalContentAlignment="Center"
               Margin="5"
               FontSize="15"/>
        <Label Grid.Row="2"
               Content="打开程序"
               HorizontalContentAlignment="Center"
               VerticalContentAlignment="Center"
               Margin="5" 
               FontSize="15"/>
   

        <CheckBox x:Name="CheckBox_IconPath" Grid.Row="1" Grid.Column="1" HorizontalAlignment="Center" VerticalAlignment="Center" IsChecked="True"/>
        <CheckBox x:Name="CheckBox_OpenExe" Grid.Row="2" Grid.Column="1" HorizontalAlignment="Center" VerticalAlignment="Center" IsChecked="True"/>

        <Grid  Grid.Row="0"
               Grid.Column="2"
               Margin="10">
            <Grid.ColumnDefinitions>
                <ColumnDefinition />
                <ColumnDefinition Width="100"/>
                <ColumnDefinition Width="30"/>
            </Grid.ColumnDefinitions>
            <TextBox Name="TextBox_FileType"
                 HorizontalContentAlignment="Left"
                 VerticalContentAlignment="Center"
                 AllowDrop="True"
                 PreviewDragOver="Text_FileType_PreviewDragOver"
                 PreviewDrop="Text_FileType_PreviewDrop" />
            <Label Grid.Column="1"
               Content="清除原配置"
               HorizontalContentAlignment="Center"
               VerticalContentAlignment="Center"
               Margin="5"
               FontSize="15"/>
            <CheckBox x:Name="CheckBox_CleanCfg"  Grid.Column="2" HorizontalAlignment="Center" VerticalAlignment="Center" IsChecked="False"/>

        </Grid>

        <TextBox Name="TextBox_IconPath"
                 Grid.Row="1"
                 Grid.Column="2"
                 Margin="10"
                 HorizontalContentAlignment="Left"
                 VerticalContentAlignment="Center"
                 PreviewDragOver="Text_FilePath_PreviewDragOver"
                 PreviewDrop="Text_FilePath_PreviewDrop"
                 LostKeyboardFocus="TextBox_FileType_LostFocus"
                 
                 />
        <TextBox Name="TextBox_OpenExe"
                 Grid.Row="2"
                 Grid.Column="2"
                 Margin="10"
                 HorizontalContentAlignment="Left"
                 VerticalContentAlignment="Center"
                 PreviewDragOver="Text_FilePath_PreviewDragOver"
                 PreviewDrop="Text_FilePath_PreviewDrop"
                 TextChanged="TextBox_FilePath_TextChanged"
                 AllowDrop="True" 
                 LostKeyboardFocus="TextBox_FileType_LostFocus"
                 />


        <Button  Grid.Row="4"
                 Grid.ColumnSpan="3"
                 Height="25"
                 Width="70"
                 Content="修改图标"
                 Click="Button_Click" />
    </Grid>
</Window>