diff --git a/MainWindow.xaml b/MainWindow.xaml
index a37dc0a..689ce08 100644
--- a/MainWindow.xaml
+++ b/MainWindow.xaml
@@ -70,7 +70,7 @@
         <TextBlock HorizontalAlignment="Left" Height="35" Margin="230,140,0,0" TextWrapping="Wrap" Text="总步数:" VerticalAlignment="Top" Width="70" FontSize="20" Grid.ColumnSpan="2"/>
         <TextBlock HorizontalAlignment="Left" Height="35" Margin="230,175,0,0" TextWrapping="Wrap" Text="表单:" VerticalAlignment="Top" Width="70" FontSize="20" Grid.ColumnSpan="2"/>
         <ComboBox x:Name="Forms_" HorizontalAlignment="Left" Height="30" Margin="38,175,0,0" VerticalAlignment="Top" Width="105" FontSize="20" IsTabStop="True" Grid.Column="1"/>
-        <TextBox x:Name="Number" HorizontalAlignment="Left" Height="30" Margin="95,35,0,0" TextWrapping="Wrap" Text="" VerticalAlignment="Top" Width="200" FontSize="20" KeyUp="SearchBox_OnKeyDownd" Grid.ColumnSpan="2"/>
+        <TextBox x:Name="Number" HorizontalAlignment="Left" ToolTip="当前配方的物料单" Height="30" Margin="95,35,0,0" TextWrapping="Wrap" Text="" VerticalAlignment="Top" Width="200" FontSize="20" KeyUp="SearchBox_OnKeyDownd" Grid.ColumnSpan="2"/>
         <TextBox HorizontalAlignment="Left" Height="30" Margin="95,70,0,0" TextWrapping="Wrap" Text="" VerticalAlignment="Top" Width="200" FontSize="20" KeyUp="SearchBox_OnKeyDownd" IsTabStop="False" Grid.ColumnSpan="2"/>
         <TextBox x:Name="ReDye" HorizontalAlignment="Left" Height="30" Margin="38,35,0,0" TextWrapping="Wrap" Text="0" VerticalAlignment="Top" Width="30" FontSize="20" 
                  MaxLines="1" MaxLength="2" PreviewTextInput="Tb_KeyPress" InputMethod.IsInputMethodEnabled="False" Focusable ="False" Grid.Column="1"/>