collaborativePlatform/CollaborativePlatformMain/Form/MessageSubPage/SeconToolLibraryPage.xaml

<Page x:Class="CollaborativePlatformMain.Form.MessageSubPage.SeconToolLibraryPage"
        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:CollaborativePlatformMain.Form.MessageSubPage"
        mc:Ignorable="d"
        Title="SeconContactsPage" Width="663" Height="430"
        Loaded="Window_Loaded">

    <StackPanel>
        <StackPanel Name="sp_tools" Width="180" HorizontalAlignment="Left" Background="WhiteSmoke">
        </StackPanel>

        <!--最右边-->
        <StackPanel Height="420"  VerticalAlignment="Top" Width="483"
                                Margin="0 10 0 0"  HorizontalAlignment="Left">

            <WrapPanel Name="wp_tools" Margin="0 0 0 0" Width="490"  Height="370" HorizontalAlignment="Left">
            </WrapPanel>
            <DockPanel>
                <Button HorizontalAlignment="Right" Margin="0 0 20 0" Width="110" Click="bt_addTools" Content="添加漂浮工具" />
            </DockPanel>
        </StackPanel>
    </StackPanel>
</Page>