WPF 在菜单中使用 StackPanel
WPF using StackPanel within a a menu
我有一个 wpf 应用程序，我在其中使用侧边菜单。在菜单的一部分中，我有一个 Header 菜单项和两个子菜单项。我更改了两个子菜单项的背景以显示差异。两个颜色不同的子菜单项之间有细微的差距。我希望两个子菜单的背景相同，中间没有间隙。这是我的菜单代码：
<MenuItem x:Name="miReplaceLF" Header="Replace Line Feeds" Height="24" VerticalAlignment="Center"
ToolTip="Replace all line feeds in choosen fields with the replacement character." />
<MenuItem x:Name="smiDBFile" Header="DataBase Table"
Click="MenuItem_Click_RLFDBDatabase" Background="#FFBEEBF7"
Margin="15,0,0,0"
ToolTip="Replace line feeds on fields in a database table." />
<MenuItem x:Name="smiExcelTextFile" Header="Excel or Text File" Height="24"
VerticalAlignment="Top" Click="MenuItem_Click_RLFExcelText" Background="#FFBEEBF7"
Margin="15,0,0,0"
ToolTip="Choose a Excel/Text File." />
我尝试将两个子菜单项放在堆栈面板中。这使我能够拥有我想要的统一背景，但子菜单项向正确的方向移动太多了。我只想在两个子菜单项上缩进一点。我找不到将菜单项对齐到左侧的方法。这是堆栈面板的代码。
<MenuItem x:Name="miReplaceLF" Header="Replace Line Feeds" Height="24" VerticalAlignment="Center"
ToolTip="Replace all line feeds in choosen fields with the replacement character." />
<StackPanel Background="#FFBEEBF7">
<MenuItem x:Name="smiDBFile" Header="DataBase Table"
Click="MenuItem_Click_RLFDBDatabase" Background="#FFBEEBF7"
Margin="0,0,0,0"
ToolTip="Replace line feeds on fields in a database table." />
<MenuItem x:Name="smiExcelTextFile" Header="Excel or Text File" Height="24"
Click="MenuItem_Click_RLFExcelText" Background="#FFBEEBF7"
Margin="0,0,0,0"
ToolTip="Choose a Excel/Text File." />
</StackPanel>
这是完整的 XAML 代码，已更改为使用 Ed Plunkett
的建议
<Window x:Class="TextUtilities.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:TextUtilities"
mc:Ignorable="d"
Title="Text Utilites" x:Name="TextUtils" Height="420" Width="900" Left="100" Top="30"
ResizeMode="CanMinimize" WindowStartupLocation="CenterScreen" Background="#FFDBF4FB">
<Window.Resources>
<Style
TargetType="MenuItem"
BasedOn="{StaticResource {x:Type MenuItem}}"
x:Key="RLFItem">
<Setter Property="Margin" Value="15,0,0,0" />
<Setter Property="Background" Value="#FFBEEBF7" />
</Style>
</Window.Resources>
<Grid>
<Menu HorizontalAlignment="Left" Width="150" Margin="0,2,0,0" FontFamily="Arial" FontSize="14.667"
BorderThickness="0,2,2,0" BorderBrush="#FFE0E0E0" Background="#FFDBF4FB">
<Menu.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel x:Name="spItemsPanel" Background="#FFDBF4FB" />
</ItemsPanelTemplate>
</Menu.ItemsPanel>
<MenuItem x:Name="miReplaceLF" Header="Replace Line Feeds" Height="24" VerticalAlignment="Center"
ToolTip="Replace all line feeds in choosen fields with the replacement character."/>
<MenuItem x:Name="smiDBFile" Header="DataBase Table" Height="24"
Style="{StaticResource RLFItem}" Click="MenuItem_Click_RLFDBDatabase"
ToolTip="Replace line feeds on fields in a database table." />
<MenuItem x:Name="smiExcelTextFile" Header="Excel or Text File" Height="24"
Style="{StaticResource RLFItem}" Click="MenuItem_Click_RLFExcelText"
ToolTip="Choose a Excel/Text File." />
<MenuItem x:Name="miCreateLF" Header="Create Line Feeds" Height="24" VerticalAlignment="Center" ToolTip="Replace all the replacement characters with line feeds." />
<MenuItem x:Name="miViewTextField" Header="View Text Field" Height="24" VerticalAlignment="Center" Click="MenuItem_Click_ViewTextField" ToolTip="Display the contents of a text field. Allows you to see how the data will be displayed in the UI." />
<MenuItem x:Name="miViewSPTEXT" Header="View SPTEXT" Height="24" VerticalAlignment="Center" Click="MenuItem_Click_ViewSPTEXT" ToolTip="Display field sptd_text from table sptextdt. Allows you to see how the data will be displayed in the UI." />
<MenuItem x:Name="miSPlitLargeFile" Header="Split Large File" Height="24" VerticalAlignment="Center" Click="MenuItem_Click_SLF" ToolTip="Split large files, over 60MB into smaller files." />
<MenuItem x:Name="miHowTo" Header="How To" Height="24" VerticalAlignment="Center" Click="MenuItem_Click_HowTo" ToolTip="Instructions on how to use the SPText Utilities." />
<Separator Style="{StaticResource {x:Static ToolBar.SeparatorStyleKey}}" />
<MenuItem Header="Close" Height="24" VerticalAlignment="Center" Click="MenuItem_Click_Close" />
</Menu>
<Grid x:Name="grdRLFDatabase" Visibility="Visible" Height="350" Margin="155,0,0,0" VerticalAlignment="Top">
<TextBox x:Name="txtRLFDBTitle" IsReadOnly="True" TextWrapping="Wrap"
Text="Process to clean a database table and create a pipe delimited text file. You may type in a server instance or select one from the list. Once a server is choosen please cliack the 'Load DB Info' button."
HorizontalAlignment="Left" Height="62" Margin="10,4,0,0" VerticalAlignment="Top" Width="659" FontFamily="Arial"
FontSize="16" Padding="5,1,1,1" Background="#FFDBF4FB" BorderBrush="Gray" BorderThickness="1"/>
<Label x:Name="lblRLFDBInstance" Content="Enter Database Instance:" HorizontalAlignment="Left" Height="28" Margin="5,87,0,0" VerticalAlignment="Top" Width="175" FontFamily="Arial" FontSize="14.667"/>
<ComboBox x:Name="cbxRLFDBInstances" x:FieldModifier="public" HorizontalAlignment="Left" Height="28" Margin="189,87,0,0" VerticalAlignment="Top" Width="250" FontFamily="Arial" FontSize="14.667" IsEditable="True"/>
<Button x:Name="btnRLFDBLoadDBInfo" Content="Load DB Info" HorizontalAlignment="Left" Height="26" Margin="475,89,0,0" VerticalAlignment="Top" Width="101" FontFamily="Arial" FontSize="14.667" Click="btnRLFDBLoadDBInfo_Click" Background="#FFEEFFFF" ToolTip="Click here after choosing or typing in the datbase instance. This will populate the database list."/>
<Label x:Name="lblRLFDBName" Content="Choose Database:" HorizontalAlignment="Left" Height="28" Margin="5,131,0,0" VerticalAlignment="Top" Width="175" FontFamily="Arial" FontSize="14.667"/>
<ComboBox x:Name="cbxRLFDBName" x:FieldModifier="public" HorizontalAlignment="Left" Height="28" Margin="189,132,0,0" VerticalAlignment="Top" Width="250" FontFamily="Arial" FontSize="14.667" IsEditable="True" SelectionChanged="cbxRLFDBName_SelectionChanged" ToolTip="Once a database is choosen the table list will automatically be populated."/>
<Label x:Name="lblRLFDBTableName" Content="Choose Table:" HorizontalAlignment="Left" Height="28" Margin="5,176,0,0" VerticalAlignment="Top" Width="175" FontFamily="Arial" FontSize="14.667"/>
<ComboBox x:Name="cbxRLFDBTableName" x:FieldModifier="public" HorizontalAlignment="Left" Height="28" Margin="189,177,0,0" VerticalAlignment="Top" Width="250" FontFamily="Arial" FontSize="14.667" IsEditable="True" />
<Label x:Name="lblRLFDBOutputName" Content="Choose Output Folder:" HorizontalAlignment="Left" Height="28" Margin="5,233,0,0" VerticalAlignment="Top" Width="175" FontFamily="Arial" FontSize="14.667"/>
<TextBox x:Name="txtRLFDBOutputFolder" x:FieldModifier="public" IsReadOnly="True" HorizontalAlignment="Left" Height="50" Margin="189,222,0,0" TextWrapping="Wrap" Text="" VerticalAlignment="Top" Width="250" FontFamily="Arial" FontSize="14.667" />
<Button x:Name="btnRLFDBBrowseFolder" Content="Browse..." x:FieldModifier="public" HorizontalAlignment="Left" Height="26" Margin="475,235,0,0" VerticalAlignment="Top" Width="74" FontFamily="Arial" FontSize="14.667" Background="#FFEEFFFF" Click="btnRLFDBBrowseFolder_Click" ToolTip="Choose the folder where the text file will be saved to. The file will be named the same as a the table with '_duc' appended to the end."/>
<Button x:Name="btnRLFDBSubmit" Content="Submit" x:FieldModifier="public" HorizontalAlignment="Left" Height="26" Margin="261,300,0,0" VerticalAlignment="Top" Width="74" FontFamily="Arial" FontSize="14.667" Background="#FFEEFFFF" Click="btnRLFDBSubmit_Click"/>
</Grid>
<Grid x:Name="grdRLFExcelText" Visibility="Hidden" Height="320" Width="750" Margin="150, 0, 0 0" VerticalAlignment="Top">
<Label x:Name="lblRLFFileInfo" Content="Process to replace Line Feeds in text fields." HorizontalAlignment="Left" Margin="3,15,0,0" VerticalAlignment="Top" Width="583" Height="30" FontFamily="Arial" FontSize="18.667" FontWeight="Bold"/>
<Label x:Name="lblRLFFileName" Content="Enter the filename:" HorizontalAlignment="Left" Margin="3,79,0,0" VerticalAlignment="Top" Width="162" Height="30" FontFamily="Arial" FontSize="16"/>
<TextBox x:Name="txtRLFFileName" HorizontalAlignment="Left" Height="50" Margin="186,70,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="400" VerticalContentAlignment="Center" FontFamily="Arial" FontSize="16" FontWeight="Bold" Background="#FFDBF4FB" TextChanged="txtRLFFileName_TextChanged" />
<Button x:Name="btnRLFFileBrowse" Content="Browse..." HorizontalAlignment="Left" Margin="630,84,0,0" VerticalAlignment="Top" Width="89" FontFamily="Arial" FontSize="16" Background="#FFDBF4FB" Click="btnRLFFileBrowse_Click"/>
<Label x:Name="lblRLFOutputFolder" Content="Choose output folder:" HorizontalAlignment="Left" Margin="3,149,0,0" VerticalAlignment="Top" Width="180" Height="30" FontFamily="Arial" FontSize="16"/>
<TextBox x:Name="txtRLFOutputFolder" HorizontalAlignment="Left" Height="50" Margin="186,138,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="400" VerticalContentAlignment="Center" FontFamily="Arial" FontSize="16" FontWeight="Bold" Background="#FFDBF4FB" TextChanged="txtRLFOutputFolder_TextChanged"/>
<Button x:Name="btnRLFFolderBrowse" Content="Browse..." HorizontalAlignment="Left" Margin="630,154,0,0" VerticalAlignment="Top" Width="89" FontFamily="Arial" FontSize="16" Background="#FFDBF4FB" Click="btnRLFFolderBrowse_Click"/>
<Label x:Name="lblRLFFieldDelim" Content="Field Delimiter:" HorizontalAlignment="Left" Margin="190,202,0,0" VerticalAlignment="Top" Width="118" Height="30" FontFamily="Arial" FontSize="16"/>
<TextBox x:Name="txtRLFFieldDelim" HorizontalAlignment="Left" Height="22" Margin="312,206,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="18" VerticalContentAlignment="Center" FontFamily="Arial" FontSize="16" FontWeight="Bold" Background="#FFDBF4FB" TextChanged="txtRLFFileName_TextChanged" MaxLength="2" HorizontalContentAlignment="Center" />
<CheckBox x:Name="chbxRLFHeaders" Content="Has Header Row" HorizontalAlignment="Left" Height="17" Margin="430,208,0,0" VerticalAlignment="Top" Width="149" FontFamily="Arial" FontSize="16" Checked="chbxRLFHeaders_Checked" Unchecked="chbxRLFHeaders_Unchecked"/>
<Button x:Name="btnRLFSubmit" Content="Submit" HorizontalAlignment="Left" Margin="319,259,0,0" VerticalAlignment="Top" Width="82" Height="31" Background="#FFDBF4FB" FontFamily="Arial" FontSize="16" Click="btnRLFSubmit_Click"/>
</Grid>
</Grid>
</Window>
您可以创建一个 MenuItem 样式，它可以更改您应用它的菜单项的 Padding 或 Margin（您的选择；尝试两者）和背景颜色，然后将其设置在您选择的任何项目上：
<Window.Resources>
<Style
TargetType="MenuItem"
BasedOn="{StaticResource {x:Type MenuItem}}"
x:Key="SpecialItem"
>
<Setter Property="Margin" Value="15,0,0,0" />
<Setter Property="BorderThickness" Value="0" />
<Setter Property="Background" Value="#FFBEEBF7" />
</Style>
</Window.Resources>
...
<MenuItem Header="Foo" />
<MenuItem Header="Bar" Style="{StaticResource SpecialItem}" />
<MenuItem Header="Baz" Style="{StaticResource SpecialItem}" />
不幸的是，这些鼠标悬停状态看起来有点滑稽。使用默认的 WPF MenuItem 模板，或者至少是我在这里看到的模板，您需要替换整个控件模板来更改它。如果你需要，我们可以去那里；让我知道。
更新
如何向 Stack Overflow 问题添加图片：编辑问题，然后单击以橙色突出显示的“添加图片”图标。
我有一个 wpf 应用程序，我在其中使用侧边菜单。在菜单的一部分中，我有一个 Header 菜单项和两个子菜单项。我更改了两个子菜单项的背景以显示差异。两个颜色不同的子菜单项之间有细微的差距。我希望两个子菜单的背景相同，中间没有间隙。这是我的菜单代码：
<MenuItem x:Name="miReplaceLF" Header="Replace Line Feeds" Height="24" VerticalAlignment="Center"
ToolTip="Replace all line feeds in choosen fields with the replacement character." />
<MenuItem x:Name="smiDBFile" Header="DataBase Table"
Click="MenuItem_Click_RLFDBDatabase" Background="#FFBEEBF7"
Margin="15,0,0,0"
ToolTip="Replace line feeds on fields in a database table." />
<MenuItem x:Name="smiExcelTextFile" Header="Excel or Text File" Height="24"
VerticalAlignment="Top" Click="MenuItem_Click_RLFExcelText" Background="#FFBEEBF7"
Margin="15,0,0,0"
ToolTip="Choose a Excel/Text File." />
我尝试将两个子菜单项放在堆栈面板中。这使我能够拥有我想要的统一背景，但子菜单项向正确的方向移动太多了。我只想在两个子菜单项上缩进一点。我找不到将菜单项对齐到左侧的方法。这是堆栈面板的代码。
<MenuItem x:Name="miReplaceLF" Header="Replace Line Feeds" Height="24" VerticalAlignment="Center"
ToolTip="Replace all line feeds in choosen fields with the replacement character." />
<StackPanel Background="#FFBEEBF7">
<MenuItem x:Name="smiDBFile" Header="DataBase Table"
Click="MenuItem_Click_RLFDBDatabase" Background="#FFBEEBF7"
Margin="0,0,0,0"
ToolTip="Replace line feeds on fields in a database table." />
<MenuItem x:Name="smiExcelTextFile" Header="Excel or Text File" Height="24"
Click="MenuItem_Click_RLFExcelText" Background="#FFBEEBF7"
Margin="0,0,0,0"
ToolTip="Choose a Excel/Text File." />
</StackPanel>
这是完整的 XAML 代码，已更改为使用 Ed Plunkett
的建议<Window x:Class="TextUtilities.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:TextUtilities"
mc:Ignorable="d"
Title="Text Utilites" x:Name="TextUtils" Height="420" Width="900" Left="100" Top="30"
ResizeMode="CanMinimize" WindowStartupLocation="CenterScreen" Background="#FFDBF4FB">
<Window.Resources>
<Style
TargetType="MenuItem"
BasedOn="{StaticResource {x:Type MenuItem}}"
x:Key="RLFItem">
<Setter Property="Margin" Value="15,0,0,0" />
<Setter Property="Background" Value="#FFBEEBF7" />
</Style>
</Window.Resources>
<Grid>
<Menu HorizontalAlignment="Left" Width="150" Margin="0,2,0,0" FontFamily="Arial" FontSize="14.667"
BorderThickness="0,2,2,0" BorderBrush="#FFE0E0E0" Background="#FFDBF4FB">
<Menu.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel x:Name="spItemsPanel" Background="#FFDBF4FB" />
</ItemsPanelTemplate>
</Menu.ItemsPanel>
<MenuItem x:Name="miReplaceLF" Header="Replace Line Feeds" Height="24" VerticalAlignment="Center"
ToolTip="Replace all line feeds in choosen fields with the replacement character."/>
<MenuItem x:Name="smiDBFile" Header="DataBase Table" Height="24"
Style="{StaticResource RLFItem}" Click="MenuItem_Click_RLFDBDatabase"
ToolTip="Replace line feeds on fields in a database table." />
<MenuItem x:Name="smiExcelTextFile" Header="Excel or Text File" Height="24"
Style="{StaticResource RLFItem}" Click="MenuItem_Click_RLFExcelText"
ToolTip="Choose a Excel/Text File." />
<MenuItem x:Name="miCreateLF" Header="Create Line Feeds" Height="24" VerticalAlignment="Center" ToolTip="Replace all the replacement characters with line feeds." />
<MenuItem x:Name="miViewTextField" Header="View Text Field" Height="24" VerticalAlignment="Center" Click="MenuItem_Click_ViewTextField" ToolTip="Display the contents of a text field. Allows you to see how the data will be displayed in the UI." />
<MenuItem x:Name="miViewSPTEXT" Header="View SPTEXT" Height="24" VerticalAlignment="Center" Click="MenuItem_Click_ViewSPTEXT" ToolTip="Display field sptd_text from table sptextdt. Allows you to see how the data will be displayed in the UI." />
<MenuItem x:Name="miSPlitLargeFile" Header="Split Large File" Height="24" VerticalAlignment="Center" Click="MenuItem_Click_SLF" ToolTip="Split large files, over 60MB into smaller files." />
<MenuItem x:Name="miHowTo" Header="How To" Height="24" VerticalAlignment="Center" Click="MenuItem_Click_HowTo" ToolTip="Instructions on how to use the SPText Utilities." />
<Separator Style="{StaticResource {x:Static ToolBar.SeparatorStyleKey}}" />
<MenuItem Header="Close" Height="24" VerticalAlignment="Center" Click="MenuItem_Click_Close" />
</Menu>
<Grid x:Name="grdRLFDatabase" Visibility="Visible" Height="350" Margin="155,0,0,0" VerticalAlignment="Top">
<TextBox x:Name="txtRLFDBTitle" IsReadOnly="True" TextWrapping="Wrap"
Text="Process to clean a database table and create a pipe delimited text file. You may type in a server instance or select one from the list. Once a server is choosen please cliack the 'Load DB Info' button."
HorizontalAlignment="Left" Height="62" Margin="10,4,0,0" VerticalAlignment="Top" Width="659" FontFamily="Arial"
FontSize="16" Padding="5,1,1,1" Background="#FFDBF4FB" BorderBrush="Gray" BorderThickness="1"/>
<Label x:Name="lblRLFDBInstance" Content="Enter Database Instance:" HorizontalAlignment="Left" Height="28" Margin="5,87,0,0" VerticalAlignment="Top" Width="175" FontFamily="Arial" FontSize="14.667"/>
<ComboBox x:Name="cbxRLFDBInstances" x:FieldModifier="public" HorizontalAlignment="Left" Height="28" Margin="189,87,0,0" VerticalAlignment="Top" Width="250" FontFamily="Arial" FontSize="14.667" IsEditable="True"/>
<Button x:Name="btnRLFDBLoadDBInfo" Content="Load DB Info" HorizontalAlignment="Left" Height="26" Margin="475,89,0,0" VerticalAlignment="Top" Width="101" FontFamily="Arial" FontSize="14.667" Click="btnRLFDBLoadDBInfo_Click" Background="#FFEEFFFF" ToolTip="Click here after choosing or typing in the datbase instance. This will populate the database list."/>
<Label x:Name="lblRLFDBName" Content="Choose Database:" HorizontalAlignment="Left" Height="28" Margin="5,131,0,0" VerticalAlignment="Top" Width="175" FontFamily="Arial" FontSize="14.667"/>
<ComboBox x:Name="cbxRLFDBName" x:FieldModifier="public" HorizontalAlignment="Left" Height="28" Margin="189,132,0,0" VerticalAlignment="Top" Width="250" FontFamily="Arial" FontSize="14.667" IsEditable="True" SelectionChanged="cbxRLFDBName_SelectionChanged" ToolTip="Once a database is choosen the table list will automatically be populated."/>
<Label x:Name="lblRLFDBTableName" Content="Choose Table:" HorizontalAlignment="Left" Height="28" Margin="5,176,0,0" VerticalAlignment="Top" Width="175" FontFamily="Arial" FontSize="14.667"/>
<ComboBox x:Name="cbxRLFDBTableName" x:FieldModifier="public" HorizontalAlignment="Left" Height="28" Margin="189,177,0,0" VerticalAlignment="Top" Width="250" FontFamily="Arial" FontSize="14.667" IsEditable="True" />
<Label x:Name="lblRLFDBOutputName" Content="Choose Output Folder:" HorizontalAlignment="Left" Height="28" Margin="5,233,0,0" VerticalAlignment="Top" Width="175" FontFamily="Arial" FontSize="14.667"/>
<TextBox x:Name="txtRLFDBOutputFolder" x:FieldModifier="public" IsReadOnly="True" HorizontalAlignment="Left" Height="50" Margin="189,222,0,0" TextWrapping="Wrap" Text="" VerticalAlignment="Top" Width="250" FontFamily="Arial" FontSize="14.667" />
<Button x:Name="btnRLFDBBrowseFolder" Content="Browse..." x:FieldModifier="public" HorizontalAlignment="Left" Height="26" Margin="475,235,0,0" VerticalAlignment="Top" Width="74" FontFamily="Arial" FontSize="14.667" Background="#FFEEFFFF" Click="btnRLFDBBrowseFolder_Click" ToolTip="Choose the folder where the text file will be saved to. The file will be named the same as a the table with '_duc' appended to the end."/>
<Button x:Name="btnRLFDBSubmit" Content="Submit" x:FieldModifier="public" HorizontalAlignment="Left" Height="26" Margin="261,300,0,0" VerticalAlignment="Top" Width="74" FontFamily="Arial" FontSize="14.667" Background="#FFEEFFFF" Click="btnRLFDBSubmit_Click"/>
</Grid>
<Grid x:Name="grdRLFExcelText" Visibility="Hidden" Height="320" Width="750" Margin="150, 0, 0 0" VerticalAlignment="Top">
<Label x:Name="lblRLFFileInfo" Content="Process to replace Line Feeds in text fields." HorizontalAlignment="Left" Margin="3,15,0,0" VerticalAlignment="Top" Width="583" Height="30" FontFamily="Arial" FontSize="18.667" FontWeight="Bold"/>
<Label x:Name="lblRLFFileName" Content="Enter the filename:" HorizontalAlignment="Left" Margin="3,79,0,0" VerticalAlignment="Top" Width="162" Height="30" FontFamily="Arial" FontSize="16"/>
<TextBox x:Name="txtRLFFileName" HorizontalAlignment="Left" Height="50" Margin="186,70,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="400" VerticalContentAlignment="Center" FontFamily="Arial" FontSize="16" FontWeight="Bold" Background="#FFDBF4FB" TextChanged="txtRLFFileName_TextChanged" />
<Button x:Name="btnRLFFileBrowse" Content="Browse..." HorizontalAlignment="Left" Margin="630,84,0,0" VerticalAlignment="Top" Width="89" FontFamily="Arial" FontSize="16" Background="#FFDBF4FB" Click="btnRLFFileBrowse_Click"/>
<Label x:Name="lblRLFOutputFolder" Content="Choose output folder:" HorizontalAlignment="Left" Margin="3,149,0,0" VerticalAlignment="Top" Width="180" Height="30" FontFamily="Arial" FontSize="16"/>
<TextBox x:Name="txtRLFOutputFolder" HorizontalAlignment="Left" Height="50" Margin="186,138,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="400" VerticalContentAlignment="Center" FontFamily="Arial" FontSize="16" FontWeight="Bold" Background="#FFDBF4FB" TextChanged="txtRLFOutputFolder_TextChanged"/>
<Button x:Name="btnRLFFolderBrowse" Content="Browse..." HorizontalAlignment="Left" Margin="630,154,0,0" VerticalAlignment="Top" Width="89" FontFamily="Arial" FontSize="16" Background="#FFDBF4FB" Click="btnRLFFolderBrowse_Click"/>
<Label x:Name="lblRLFFieldDelim" Content="Field Delimiter:" HorizontalAlignment="Left" Margin="190,202,0,0" VerticalAlignment="Top" Width="118" Height="30" FontFamily="Arial" FontSize="16"/>
<TextBox x:Name="txtRLFFieldDelim" HorizontalAlignment="Left" Height="22" Margin="312,206,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="18" VerticalContentAlignment="Center" FontFamily="Arial" FontSize="16" FontWeight="Bold" Background="#FFDBF4FB" TextChanged="txtRLFFileName_TextChanged" MaxLength="2" HorizontalContentAlignment="Center" />
<CheckBox x:Name="chbxRLFHeaders" Content="Has Header Row" HorizontalAlignment="Left" Height="17" Margin="430,208,0,0" VerticalAlignment="Top" Width="149" FontFamily="Arial" FontSize="16" Checked="chbxRLFHeaders_Checked" Unchecked="chbxRLFHeaders_Unchecked"/>
<Button x:Name="btnRLFSubmit" Content="Submit" HorizontalAlignment="Left" Margin="319,259,0,0" VerticalAlignment="Top" Width="82" Height="31" Background="#FFDBF4FB" FontFamily="Arial" FontSize="16" Click="btnRLFSubmit_Click"/>
</Grid>
</Grid>
</Window>
您可以创建一个 MenuItem 样式，它可以更改您应用它的菜单项的 Padding 或 Margin（您的选择；尝试两者）和背景颜色，然后将其设置在您选择的任何项目上：
<Window.Resources>
<Style
TargetType="MenuItem"
BasedOn="{StaticResource {x:Type MenuItem}}"
x:Key="SpecialItem"
>
<Setter Property="Margin" Value="15,0,0,0" />
<Setter Property="BorderThickness" Value="0" />
<Setter Property="Background" Value="#FFBEEBF7" />
</Style>
</Window.Resources>
...
<MenuItem Header="Foo" />
<MenuItem Header="Bar" Style="{StaticResource SpecialItem}" />
<MenuItem Header="Baz" Style="{StaticResource SpecialItem}" />
不幸的是，这些鼠标悬停状态看起来有点滑稽。使用默认的 WPF MenuItem 模板，或者至少是我在这里看到的模板，您需要替换整个控件模板来更改它。如果你需要，我们可以去那里；让我知道。
更新
如何向 Stack Overflow 问题添加图片：编辑问题，然后单击以橙色突出显示的“添加图片”图标。