全局等待提示框

xmal代码（Loading.xaml）：

<UserControl x:Class="Longshine.SLLib.CommonXaml.Loading"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
    >
    <Grid x:Name="LayoutRoot" Width="Auto" Height="Auto">
        <Grid Background="Black" Opacity="0.2"></Grid>
        <Canvas Width="320" Height="50">
            <Rectangle RadiusX="8" RadiusY="8" Stroke="{x:Null}" Fill="#19000000" Height="49" Width="316" Canvas.Left="6" Canvas.Top="3"/>
            <Rectangle RadiusX="8" RadiusY="8" Stroke="{x:Null}" Fill="#19000000" Height="48" Width="316" Canvas.Left="5" Canvas.Top="3"/>
            <Border Height="50" Width="320" Background="#FFFFFFFF" BorderBrush="#FFACACAC" BorderThickness="1,1,1,1" CornerRadius="8,8,8,8">
                <Rectangle RadiusX="8" RadiusY="8" Stroke="{x:Null}" Margin="1,1,1,1">
                    <Rectangle.Fill>
                        <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
                            <GradientStop Color="#FFFFFFFF"/>
                            <GradientStop Color="#FFE9E9E9" Offset="1"/>
                        </LinearGradientBrush>
                    </Rectangle.Fill>
                </Rectangle>
            </Border>
        </Canvas>
        <Grid Width="320" Height="50" VerticalAlignment="Center">
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="5*" />
                <ColumnDefinition Width="10*" />
                <ColumnDefinition Width="80*" />
                <ColumnDefinition Width="5*" />
            </Grid.ColumnDefinitions>
            <Image Stretch="None" Source="Images/loading.png" Grid.Column="1" Opacity="0.3" />
            <Image x:Name="loadingImage" Stretch="None" Source="Images/loading.png" Grid.Column="1" RenderTransformOrigin="0.5,0.5">
                <Image.RenderTransform>
                    <RotateTransform Angle="0"></RotateTransform>
                </Image.RenderTransform>
            </Image>
            <TextBlock x:Name="titleText" FontFamily="Calibri" FontSize="13" Foreground="#FF000000" HorizontalAlignment="Left" Grid.Column="3"/>
            <TextBlock Text="系统处理：" x:Name="loadingText"
    			FontFamily="Verdana" FontSize="14" VerticalAlignment="Center" HorizontalAlignment="Left" Grid.Column="2"/>
        </Grid>
    </Grid>
    <UserControl.Resources>
        <Storyboard x:Name="storyboard">
            <DoubleAnimation Storyboard.TargetName="loadingImage"  Duration="0:0:0.7" To="360" Storyboard.TargetProperty="(UIElement.RenderTransform).RotateTransform.Angle" RepeatBehavior="Forever"></DoubleAnimation>
            <DoubleAnimationUsingKeyFrames Storyboard.TargetName="loadingText" Storyboard.TargetProperty="Opacity" RepeatBehavior="Forever">
                <SplineDoubleKeyFrame KeyTime="00:00:0.0" Value="0"/>
                <SplineDoubleKeyFrame KeyTime="00:00:0.5" Value="1"/>
                <SplineDoubleKeyFrame KeyTime="00:00:1.0" Value="0"/>
            </DoubleAnimationUsingKeyFrames>
        </Storyboard>
    </UserControl.Resources>
</UserControl>

 CS代码（Loading.xaml.cs）：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;

namespace Longshine.SLLib.CommonXaml
{
    public partial class Loading : UserControl
    {
        public string Title
        {
            get { return this.titleText.Text; }
            set { this.titleText.Text = value; }
        }

        public Loading()
        {
            InitializeComponent();
            this.storyboard.Begin();
        }

        public void SetLoadingText(string text)
        {
            this.loadingText.Text = "系统处理： " + text;
        }
    }
}

应用代码（LSWindow.cs）：

using System;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using Longshine.SLLib.CommonXaml;
using System.Collections.Generic;
using Longshine.SLLib.InputControls;
using System.Threading;
using System.Windows.Threading;
using Telerik.Windows.Controls;
using ClientUtils;

namespace Longshine.SLLib
{
    public class LSWindow
    {
        private static Loading loading;

        static LSWindow()
        {
            System.Windows.Controls.Control rootPage = Application.Current.RootVisual as System.Windows.Controls.Control;
            Panel panel = VisualTreeHelper.GetChild(rootPage, 0) as Panel;
            int count = VisualTreeHelper.GetChildrenCount(rootPage);
            if (loading == null)
            {
                loading = new Loading();
                loading.Visibility = Visibility.Collapsed;
                panel.Children.Add(loading);
            }

        }

        public static void ShowLoading(string message)
        {
            if (loading != null)
            {
                loading.Dispatcher.BeginInvoke(() =>
                {
                    loading.Visibility = Visibility.Visible;
                    loading.SetLoadingText(message);
                });
            }
        }

        public static void HideLoading()
        {
            if (loading != null)
                loading.Dispatcher.BeginInvoke(() => loading.Visibility = Visibility.Collapsed);
        }


        /// <summary>
        /// 记录大批量信息，提示用户
        /// </summary>
        /// <param name="msg"></param>
        public static void MessagePrompt(List<string> msg)
        {
            var msgPromptForm = new MessagePromptForm();
            msgPromptForm.lbMessage.ItemsSource = msg;
            msgPromptForm.Show();
        }

        /// <summary>
        /// 一般性弹出提示框
        /// </summary>
        /// <param name="msg"></param>
        public static void Alert(object msg)
        {
            RadWindow.Alert(new TextBlock { Text = msg.ToString(), Width = 300, TextWrapping = TextWrapping.Wrap });
        }

        /// <summary>
        /// 捕获异常信息，提示用户，并记录日志
        /// </summary>
        /// <param name="ex">异常</param>
        public static void AlertError(System.Exception ex)
        {
            AlertError(ex, true);
        }
        /// <summary>
        /// 捕获异常信息，提示用户，是否记录日志
        /// </summary>
        /// <param name="ex">异常</param>
        /// <param name="isLog">是否记录日志</param>
        public static void AlertError(System.Exception ex, bool isLog)
        {
            if (ex == null) return;
            RadWindow.Alert(new TextBlock { Text = "出现异常：" + ex.Message + "\n可能原因：" + ex.StackTrace, Width = 300, TextWrapping = TextWrapping.Wrap });
            if(isLog)
                LogFactory.FileLogger.Log("出现异常：" + ex.Message + "， 可能原因：" + ex.StackTrace, LOGLEVEL.FATAL);
        }

    }
}

界面：

 

注明：全局等待提示框代码来自于EasySL