【WPF】【DataGrid】选中后颜色不能填充满整行

【WPF】【DataGrid】选中一行，只有内容背景变色而不是填充满怎么设置

<UserControl x:Class="Platform.UI.Application.FE.UserControls.CaseLibraryUC"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             xmlns:local="clr-namespace:Platform.UI.Application.FE.UserControls"
             xmlns:conv="clr-namespace:Platform.UI.Application.FE.Converters"
             xmlns:uic_conv="clr-namespace:Platform.UI.Controls.Converters;assembly=Platform.UI.Controls"
             xmlns:properties="clr-namespace:Platform.UI.Application.FE.Properties"
             xmlns:config="clr-namespace:Platform.Config;assembly=Platform.Config"
             mc:Ignorable="d" 
             d:DesignHeight="768" d:DesignWidth="1024">
<UserControl.Resources>
            <Style x:Key ="GDStyle" TargetType="DataGridCell">
            <Setter Property="HorizontalAlignment" Value="Center">Setter>
            <Setter Property ="VerticalAlignment"  Value="Center">Setter>
            
            
            <Style.Resources>
                <SolidColorBrush  x:Key="{x:Static SystemColors.InactiveSelectionHighlightBrushKey}"  Color="LightBlue"/>
            Style.Resources>
            <Style.Triggers>
                <Trigger Property="IsSelected" Value="True">
                    <Setter Property="Foreground" Value="Black"/>
                    <Setter Property="BorderBrush" Value="LightBlue"/>
                    <Setter Property="Background" Value="LightBlue">
                    Setter>
                Trigger>
                <Trigger Property="IsFocused" Value="true">
                    <Setter Property="Foreground" Value="Black"/>
                    <Setter Property="Background" Value="LightBlue"/>
                    <Setter Property="BorderBrush" Value="LightBlue"/>
                Trigger>
            Style.Triggers>
        Style>
        UserControl.Resources>

<DataGrid x:Name="dataGridList" ItemsSource="{Binding PatientCaseDataTable}" AutoGenerateColumns="False"  IsReadOnly="True" GridLinesVisibility="None" BorderThickness="0"   FontSize="16" MouseDoubleClick="dataGridList_MouseDoubleClick">
                            <DataGrid.ColumnHeaderStyle>
                                <Style TargetType="DataGridColumnHeader">
                                    <Setter Property="Background">
                                        <Setter.Value>
                                        <LinearGradientBrush StartPoint="0,0" EndPoint="1,1">
                                        LinearGradientBrush>
                                        Setter.Value>
                                    Setter>
                                    <Setter Property ="FontWeight"  Value="Bold"/>
                                    <Setter Property ="FontSize"  Value="18"/>
                                    <Setter Property ="HorizontalAlignment"  Value="Center" />
                                Style>
                            DataGrid.ColumnHeaderStyle>
                            <DataGrid.Columns>
                                <DataGridTextColumn Header="患者姓名"  Width="16*" CellStyle="{StaticResource GDStyle}"  Binding="{Binding 患者姓名}"/>
                                <DataGridTextColumn Header="性别" Width="12*"  CellStyle="{StaticResource GDStyle}" Binding="{Binding 性别}"/>
                                <DataGridTextColumn Header="年龄" Width="10*"  CellStyle="{StaticResource GDStyle}" Binding="{Binding 年龄}"/>
                                <DataGridTextColumn Header="创建人" Width="16*"  CellStyle="{StaticResource GDStyle}" Binding="{Binding 创建人}"/>
                                <DataGridTextColumn Header="创建日期" Width="22*"  CellStyle="{StaticResource GDStyle}" Binding="{Binding 创建日期}"/>
                                <DataGridTextColumn Header="状态" Width="16*"  CellStyle="{StaticResource GDStyle}" Binding="{Binding 状态}"/>
                            DataGrid.Columns>
                        DataGrid>
UserControl>

运行结果

尝试

DataGrid和DataGrid.ColumnHeaderStyle和DataGridCell的 Foreground Background BorderBrush这三个属性全都设置了一遍都没有用，DataGrid设置后是表格外框变，Header是表头变，单元格设置后还是只是内容部分颜色变，而不是整个一行颜色变。
BorderThickness属性试过也不行，开头引用多但是我也没用哇

我想要达到的结果

希望效果像这种中间没有留白整个一行都填满蓝色