作者：dmcm0005 | 来源：互联网 | 2023-02-03 21:11
Silverlight的OOB模式(out-of-browser)下可以提升用户操作权限，访问系统API、将Silverlight程序安装在本地计算机上面而不必再浏览器中运行，在本节将
Silverlight的OOB模式(out-of-browser)下可以提升用户操作权限，访问系统API、将Silverlight程序安装在本地计算机上面而不必再浏览器中运行，在本节将讲诉一个只能应用于OOB模式下的WebBrowser控件的简单应用。
首先创建一个新的Silverlight应用程序名为SLBrowser并且设置其运行在OOB模式下，鼠标右键点击SLBrowser项目，选择“属性”。在属性页的“Silverlight”栏下面我们在“允许在浏览器外运行应用程序”打钩。
然后点击“浏览器外设置”按钮，设置窗口的样式，另外在最下面有一个“在浏览器外运行时需要提升的信任”按钮就是提升用户操作权限的。
我们准备两个按钮“百度地图”、“浏览”，分别模拟一下两个功能：
•点击“百度地图”按钮的时候直接加载本地的Html文件访问百度地图
•点击“浏览”按钮的时候就将模拟一个浏览器，进入浏览器页面
下面我们来看Xaml代码：
<
Grid x:Name
=
"
LayoutRoot
"
Background
=
"
White
"
>
<
TextBlock Height
=
"
23
"
HorizontalAlignment
=
"
Left
"
Margin
=
"
29,12,0,0
"
Name
=
"
textBlock1
"
Text
=
"
查询地址：
"
VerticalAlignment
=
"
Top
"
/>
<
TextBox Height
=
"
23
"
HorizontalAlignment
=
"
Right
"
Margin
=
"
0,8,207,0
"
Name
=
"
textBox1
"
VerticalAlignment
=
"
Top
"
Width
=
"
703
"
/>
<
Button Content
=
"
百度地图
"
Height
=
"
23
"
HorizontalAlignment
=
"
Left
"
Margin
=
"
804,8,0,0
"
Name
=
"
button1
"
VerticalAlignment
=
"
Top
"
Width
=
"
78
"
Click
=
"
button1_Click
"
/>
<
WebBrowser Height
=
"
638
"
HorizontalAlignment
=
"
Left
"
Margin
=
"
21,41,0,0
"
Name
=
"
webBrowser1
"
VerticalAlignment
=
"
Top
"
Width
=
"
953
"
/>
<
Button Content
=
"
浏 览
"
Height
=
"
23
"
HorizontalAlignment
=
"
Right
"
Margin
=
"
0,8,32,0
"
Name
=
"
button2
"
VerticalAlignment
=
"
Top
"
Width
=
"
77
"
Click
=
"
button2_Click_1
"
/>
Grid
>
下面我们来看CS代码如下（注意：WebBrowser控件的InvokeScript可以调用载入的html文件中的Javascript函数）：
public
partial
class
MainPage : UserControl
{
public
MainPage()
{
InitializeComponent();
//
webBrowser1加载本地的baiduMap.html页面
this
.webBrowser1.Navigate(
new
Uri(Application.Current.Host.Source,
"
baiduMap.html
"
))
}
private
void
button1_Click(
object
sender, RoutedEventArgs e)
{
//
调用加载的百度地图baiduMap.html内的BaiduSearch函数，并且传入值
this
.webBrowser1.InvokeScript(
"
BaiduSearch
"
,
this
.textBox1.Text);
}
private
void
button2_Click_1(
object
sender, RoutedEventArgs e)
{
try
{
//
获取Uri地址，并且让webBrowser1载入该地址
string
url
=
this
.textBox1.Text.Trim().Replace(
"
http://
"
,
""
);
this
.webBrowser1.Navigate(
new
Uri(
"
http://
"
+
url , UriKind.RelativeOrAbsolute));
//
当访问了网页之后设置隐藏百度地图搜索按钮
this
.button1.Visibility
=
Visibility.Collapsed;
textBox1.Margin
=
new
Thickness(
0
,
8
,
118
,
0
);
textBox1.Width
=
792
;
}
catch
(Exception ex)
{
MessageBox.Show(
"
请输入一个有效的网址
"
);
}
}
}
准备一个BaiduMap.html以供WebBrowser控件调用链接到百度地图（注意这个文件请放到SLBrowser.Web项目下的ClientBin文件夹下面），代码如下：
DOCTYPE html PUBLIC
"
-//W3C//DTD XHTML 1.0 Transitional//EN
"
"
http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd
"
>
<
html xmlns
=
"
http://www.w3.org/1999/xhtml
"
>
<
head
>
<
meta http
-
equiv
=
"
Content-Type
"
content
=
"
text/html; charset=gb2312
"
/>
<
title
>
百度地图实例
title
>
<
script type
=
"
text/Javascript
"
src
=
"
http://api.map.baidu.com/api?key=d3501091615b31a7a3af15a29e6d7363&v=1.0&services=true
"
>
script
>
head
>
<
body style
=
"
font-size: 12px;
"
>
<
form id
=
"
form1
"
name
=
"
form1
"
method
=
"
post
"
action
=
""
>
<
div style
=
"
width: 100%; height: 600px; border: 1px solid gray;
"
id
=
"
container
"
>
div
>
<
script type
=
"
text/Javascript
"
>
var map
=
new
BMap.Map(
"
container
"
);
var point
=
new
BMap.Point(
116.404
,
39.915
);
//
地图坐标
var keyWord
=
"
北京
"
;
map.centerAndZoom(point,
13
);
//
深度
map.enableScrollWheelZoom();
//
通过鼠标中间可放大缩小
//
增加放大缩小控件
map.addControl(
new
BMap.NavigationControl({ type: BMAP_NAVIGATION_CONTROL_SMALL }));
//
声明一个搜索对象
var local
=
new
BMap.LocalSearch(map, {
renderOptions: { map: map }
});
//
封装一个搜索函数供Silverlight调用
function BaiduSearch(keyWord) {
local.search(keyWord);
}
script
>
form
>
body
>
html
>
本源码使用VS2010+Silverlight 4.0编写，如需源码请点击SLBrowser.zip 下载。下面是加载百度地图和浏览器的效果图。
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