订单分类显示 快递金额明细统计， 快递在线充值 等

29WxOrderWpf/UserControls/UcWaterMarkTextBox.xaml

@@ -0,0 +1,20 @@
+<UserControl x:Class="_29WxOrderWpf.UserControls.UcWaterMarkTextBox"
+             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:_29WxOrderWpf.UserControls"
+             mc:Ignorable="d" 
+             d:DesignHeight="28" d:DesignWidth="100">
+    <UserControl.Resources>
+        <ResourceDictionary>
+            <local:WaterMarkVisibilityConverter x:Key="WaterMarkVisibility"/>
+        </ResourceDictionary>
+    </UserControl.Resources>
+    <Grid>
+        <TextBox x:Name="txt" Text="{Binding Text, Mode=TwoWay}" Style="{StaticResource BaseRoundCornerTextBoxStyle}" BorderBrush="{StaticResource pageColorBrush}" BorderThickness="1"
+                 HorizontalAlignment="Stretch" VerticalAlignment="Stretch" VerticalContentAlignment="Center" TextWrapping="{Binding TextWrapping}" TextChanged="txt_TextChanged"/>
+        <TextBlock x:Name="tbWaterMark" Text="{Binding WaterMark}" Margin="4,0,4,0" VerticalAlignment="Center" IsHitTestVisible="False" Foreground="DarkGray" 
+                   Visibility="{Binding ElementName=txt,Path=Text,Converter={StaticResource WaterMarkVisibility}}"></TextBlock>
+    </Grid>
+</UserControl>

29WxOrderWpf/UserControls/UcWaterMarkTextBox.xaml.cs

@@ -0,0 +1,75 @@
+using NaiBa.Util.Extension;
+using System;
+using System.Collections.Generic;
+using System.Drawing.Drawing2D;
+using System.Globalization;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Navigation;
+using System.Windows.Shapes;
+using static System.Net.Mime.MediaTypeNames;
+
+namespace _29WxOrderWpf.UserControls
+{
+    /// <summary>
+    /// UcWaterMarkTextBox.xaml 的交互逻辑
+    /// </summary>
+    public partial class UcWaterMarkTextBox : UserControl
+    {
+        public event Action<object, TextChangedEventArgs> TextChanged;
+
+        public UcWaterMarkTextBox()
+        {
+            InitializeComponent();
+            DataContext = this;
+            //this.txt.TextChanged
+        }
+
+        public static readonly DependencyProperty TextProperty = DependencyProperty.Register("Text", typeof(string), typeof(UcWaterMarkTextBox), null);
+        public string Text
+        {
+            get { return (string)GetValue(TextProperty) == null ? "" : (string)GetValue(TextProperty); }
+            set { SetValue(TextProperty, value); }
+        }
+
+        public static readonly DependencyProperty WaterMarkProperty = DependencyProperty.Register("WaterMark", typeof(string), typeof(UcWaterMarkTextBox), null);
+        public string WaterMark
+        {
+            get { return (string)GetValue(WaterMarkProperty) == null ? "" : (string)GetValue(WaterMarkProperty); }
+            set { SetValue(WaterMarkProperty, value); }
+        }
+
+        public static readonly DependencyProperty TextWrappingProperty = DependencyProperty.Register("TextWrapping", typeof(TextWrapping), typeof(UcWaterMarkTextBox), null);
+        public TextWrapping TextWrapping
+        {
+            get { return (TextWrapping)GetValue(TextWrappingProperty); }
+            set { SetValue(TextWrappingProperty, value); }
+        }
+
+        private void txt_TextChanged(object sender, TextChangedEventArgs e)
+        {
+            this.Text = txt.Text;
+            TextChanged?.Invoke(this, e);
+        }
+    }
+
+    public class WaterMarkVisibilityConverter : IValueConverter
+    {
+        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            return value.ParseToString().IsNullOrEmpty() ? Visibility.Visible : Visibility.Collapsed;
+        }
+        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            throw new NotImplementedException(); // 单向绑定可不实现
+        }
+    }
+}

29WxOrderWpf/UserControls/UcWaterMarkTextBox1.cs

@@ -8,14 +8,14 @@ using System.Windows.Controls;
 
 namespace _29WxOrderWpf.UserControls
 {
-    public class UcWaterMarkTextBox : TextBox
+    public class UcWaterMarkTextBox1 : TextBox
     {
-        public UcWaterMarkTextBox()
+        public UcWaterMarkTextBox1()
         {
         }
 
         public static readonly DependencyProperty WaterMarkProperty = DependencyProperty.Register(
-            "WaterMark", typeof(string), typeof(UcWaterMarkTextBox), null);
+            "WaterMark", typeof(string), typeof(UcWaterMarkTextBox1), null);
         public string WaterMark
         {
             get { return (string)GetValue(WaterMarkProperty); }