Silverlight Telerik控件学习：弹出窗口RadWindow

几乎所有的业务系统都有弹出窗口，典型场景有二种 ：

1、简单的弹出一个对话框显示信息，比如下面这样：

这个很简单，代码示例如下：

DialogParameters pars = new DialogParameters();            
pars.Header = "信息";
pars.Content = "Hello World";
RadWindow.Alert(pars);

2、点击某条记录的“编辑”按钮，传入ID参数，弹出一个窗口，编辑保存后，将操作结果返回给父窗口

这种场景下，要求:

a)弹出窗口能接受到父窗口传过来的参数

b)弹出窗口关闭时，父窗口要能区分出是通过什么操作关闭的(比如：是直接点击右上角的X按钮关的，还是点击“提交”按钮关的，或是点击“取消”按钮关的)

c)弹出窗关闭后，父窗口要能知道操作结果

示例代码如下:

弹出窗口Xaml部分：

<telerik:RadWindow x:Class="Telerik.Sample.PopWinUserReg"
    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:telerik="http://schemas.telerik.com/2008/xaml/presentation"
    mc:Ignorable="d"
    d:DesignHeight="480" d:DesignWidth="640" WindowStartupLocation="CenterScreen" Header="会员注册" Padding="10" Width="640" Height="300" ResizeMode="NoResize">
    
    <Grid x:Name="LayoutRoot" Background="White">
        <Grid.RowDefinitions>
            <RowDefinition Height="30" />
            <RowDefinition Height="30" />
            <RowDefinition Height="30" />
            <RowDefinition Height="30" />
            <RowDefinition Height="30" />
            <RowDefinition Height="30" />
            <RowDefinition Height="30" />
            <RowDefinition Height="Auto" MinHeight="10" />
            <RowDefinition Height="30" />
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="100" />
            <ColumnDefinition Width="*" />
        </Grid.ColumnDefinitions>
        
        <TextBlock VerticalAlignment="Center" TextAlignment="Right">用户名：</TextBlock>
        <telerik:RadMaskedTextBox Grid.Column="1" Grid.Row="0"  Name="txtUserName" VerticalAlignment="Center" Mask="aaaaaaaaaa"  Margin="0,0,10,0" />
        <TextBlock VerticalAlignment="Center" TextAlignment="Right" Grid.Row="1">密码：</TextBlock>
        <telerik:RadMaskedTextBox Grid.Column="1" Grid.Row="1"  Name="txtPassWord" VerticalAlignment="Center" Margin="0,0,10,0" />
        <TextBlock VerticalAlignment="Center" TextAlignment="Right" Grid.Row="2">重复密码：</TextBlock>
        <telerik:RadMaskedTextBox Grid.Column="1" Grid.Row="2"  Name="txtPassWord2" VerticalAlignment="Center" Margin="0,0,10,0" />
        <TextBlock VerticalAlignment="Center" TextAlignment="Right" Grid.Row="3">生日：</TextBlock>
        <telerik:RadMaskedTextBox Grid.Column="1" Grid.Row="3"  Name="txtBirthday" VerticalAlignment="Center" Margin="0,0,10,0" />
        <TextBlock VerticalAlignment="Center" TextAlignment="Right" Grid.Row="4">电子邮件：</TextBlock>
        <telerik:RadMaskedTextBox Grid.Column="1" Grid.Row="4"  Name="txtEmail" VerticalAlignment="Center" Margin="0,0,10,0" />
        <TextBlock VerticalAlignment="Center" TextAlignment="Right" Grid.Row="5">电话号码：</TextBlock>
        <telerik:RadMaskedTextBox Grid.Column="1" Grid.Row="5"  Name="txtTel" VerticalAlignment="Center" Margin="0,0,10,0" />
        <TextBlock VerticalAlignment="Center" TextAlignment="Right" Grid.Row="6">手机号码：</TextBlock>
        <telerik:RadMaskedTextBox Grid.Column="1" Grid.Row="6"  Name="txtMobile" VerticalAlignment="Center" Margin="0,0,10,0" />

        <StackPanel Grid.Row="8" Grid.Column="1" Orientation="Horizontal" Height="22">
        <telerik:RadButton Content="提 交"  Width="70" Name="btnSubmit" Click="btnSubmit_Click" />
        <telerik:RadButton Content="取 消"  Width="70" Margin="10,0,0,0" Name="btnCancel" Click="btnCancel_Click" />
        </StackPanel>
    </Grid>
</telerik:RadWindow>

弹出窗口Xaml.cs部分

using System;
using System.Collections.Generic;
using System.Windows;
using Telerik.Windows.Controls;

namespace Telerik.Sample
{
    public partial class PopWinUserReg : RadWindow
    {
        public PopWinUserReg()
        {
            InitializeComponent();
            this.Loaded += new RoutedEventHandler(PopWinUserReg_Loaded);
        }

        void PopWinUserReg_Loaded(object sender, RoutedEventArgs e)
        {
            Dictionary<string, Object> dicPars = this.Tag as Dictionary<string, object>;
            if (dicPars != null) 
            {
                string id = dicPars["id"].ToString();
                RadWindow.Alert("传入参数为：" + id);
            }
        }

        private void btnCancel_Click(object sender, RoutedEventArgs e)
        {
            this.DialogResult = false;
            this.Close();
        }

        private void btnSubmit_Click(object sender, RoutedEventArgs e)
        {
            this.DialogResult = true;
            this.Tag = "回传给父窗口的值在这里!";
            this.Close();
        }
    }
}

父窗口Xaml.cs部分：

using System;
using System.Collections;
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;
using Telerik.Windows.Controls;

namespace Telerik.Sample
{
    public partial class FormInput : UserControl
    {
        PopWinUserReg win=null;
        Dictionary<string, Object> dicPars = new Dictionary<string, object>();

        public FormInput()
        {
            InitializeComponent();

            this.Loaded += new RoutedEventHandler(FormInput_Loaded);
            this.Unloaded += new RoutedEventHandler(FormInput_Unloaded);
        }

        void FormInput_Loaded(object sender, RoutedEventArgs e)
        {
            win = new PopWinUserReg();
            win.Loaded += new RoutedEventHandler(win_Loaded);
            win.Closed += new EventHandler<Windows.Controls.WindowClosedEventArgs>(win_Closed);
        }

        void win_Closed(object sender, Windows.Controls.WindowClosedEventArgs e)
        {
            if (!e.DialogResult.HasValue) 
            {
                RadWindow.Alert("直接关闭了弹出窗口！");
            }
            else if (e.DialogResult.Value)
            {
                string result = win.Tag.ToString();
                RadWindow.Alert("点击“提交”关闭的，传回来的值为：" + result);
            }
            else 
            {
                RadWindow.Alert("点击“取消”关闭的！");
            }
            
            
        }

        void win_Loaded(object sender, RoutedEventArgs e)
        {
            RadWindow.Alert("弹出窗口加载完成!");
        }

        void FormInput_Unloaded(object sender, RoutedEventArgs e)
        {
            if (win != null) 
            {
                win.Close();
                win = null;
            }
        }

        private void btnReg_Click(object sender, RoutedEventArgs e)
        {
            #region 传参数到弹出窗口的Tag
            string PARAM_ID = "id";
            if (dicPars.ContainsKey(PARAM_ID)) 
            {
                dicPars.Remove(PARAM_ID);
            }
            dicPars.Add(PARAM_ID, 1);
            win.Tag = dicPars;
            #endregion
            win.ShowDialog();
        }
    }
}