WCF与Linq To SQL与Silverlight架构例子打印版文档格式.docx

WCF与Linq To SQL与Silverlight架构例子打印版文档格式.docx

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1.添加Dll引用

2.添加ClientAcessPolicy.xml

<

?

xmlversion="

1.0"

encoding="

utf-8"

>

access-policy>

<

cross-domain-access>

policy>

allow-fromhttp-request-headers="

*"

domainuri="

/>

/allow-from>

grant-to>

resourcepath="

/"

include-subpaths="

true"

/grant-to>

/policy>

/cross-domain-access>

/access-policy>

3.添加跨域访问服务类

usingSystem;

usingSystem.Collections.Generic;

usingSystem.Linq;

usingSystem.Text;

namespaceWCFServer

{

[System.ServiceModel.ServiceContract]

publicinterfaceIcrossDomainService

{

[System.ServiceModel.OperationContract]

[System.ServiceModel.Web.WebGet（UriTemplate="

ClientAccessPolicy.xml"

）]

System.ServiceModel.Channels.MessageProvidePolicyFile（）;

}

publicclasscrossDomainService:

IcrossDomainService

publicSystem.ServiceModel.Channels.MessageProvidePolicyFile（）

System.IO.FileStreamfilestream=System.IO.File.Open（"

ClientAcessPolicy.xml"

System.IO.FileMode.Open,System.IO.FileAccess.Read,System.IO.FileShare.ReadWrite）;

System.Xml.XmlReaderreader=System.Xml.XmlReader.Create（filestream）;

System.ServiceModel.Channels.Messageresult=System.ServiceModel.Channels.Message.CreateMessage（System.ServiceModel.Channels.MessageVersion.None,"

"

reader）;

returnresult;

}

4.添加App.config

?

configuration>

system.serviceModel>

serviceHostingEnvironmentaspNetCompatibilityEnabled="

behaviors>

endpointBehaviors>

behaviorname="

WCFServer.crossDomainServiceBehavior"

webHttp/>

/behavior>

/endpointBehaviors>

serviceBehaviors>

/serviceBehaviors>

/behaviors>

services>

servicename="

WCFServer.crossDomainService"

endpointaddress="

behaviorConfiguration="

binding="

webHttpBinding"

contract="

WCFServer.IcrossDomainService"

/>

host>

baseAddresses>

addbaseAddress="

http:

//localhost:

8731/"

/baseAddresses>

/host>

/service>

/services>

/system.serviceModel>

/configuration>

（3）设计数据库

（4）创建LinqToSQL

（5）设计基于LinqToSQL创建数据操作类

publicinterfaceImyDBControl

int?

addMytable（myTablemyTable）;

List<

myTable>

searchMyTable（doubley1,doubley2）;

publicclassmyDBControl:

ImyDBControl

publicint?

addMytable（myTablemyTable）

myTable.rowID=System.Guid.NewGuid（）;

using（testDBDataContextdb=newtestDBDataContext（））

db.myTable.InsertOnSubmit（myTable）;

db.SubmitChanges（）;

returnnull;

publicList<

searchMyTable（doubley1,doubley2）

returndb.myTable.Where（p=>

p.y>

=y1&

&

p.y<

y2）.ToList（）;

（1+）完成WCF宿主

publicpartialclassWindow1:

Window

publicWindow1（）

InitializeComponent（）;

System.ServiceModel.ServiceHostcrossDomainHost;

System.ServiceModel.ServiceHostmyDBControlHost;

staticintbyteSize=2147483647;

staticboolhttpGetEnabled=true;

staticstringserverURL="

;

privatevoidbutton1_Click（objectsender,RoutedEventArgse）

{

crossDomainHost=newSystem.ServiceModel.ServiceHost（typeof（CrossDomainService））;

serverURL=crossDomainHost.BaseAddresses[0].AbsoluteUri;

crossDomainHost.Open（）;

satrtServer（"

myDBControlHost"

typeof（myDBControl）,typeof（ImyDBControl）,refmyDBControlHost）;

this.button1.Content="

服务运行中"

staticvoidsatrtServer（stringpath,TypeserviceType,TypeserviceInterface,refSystem.ServiceModel.ServiceHosthost）

stringurl=serverURL+path+"

host=newSystem.ServiceModel.ServiceHost（serviceType）;

//-

System.ServiceModel.Description.ServiceMetadataBehaviorbehavior=newServiceMetadataBehavior（）;

behavior.HttpGetEnabled=httpGetEnabled;

behavior.HttpGetUrl=newUri（url）;

host.Description.Behaviors.Add（behavior）;

System.Xml.XmlDictionaryReaderQuotasreaderQuotas=newSystem.Xml.XmlDictionaryReaderQuotas（）;

readerQuotas.MaxStringContentLength=byteSize;

readerQuotas.MaxArrayLength=byteSize;

readerQuotas.MaxBytesPerRead=byteSize;

System.ServiceModel.BasicHttpBindingbasicHttpBinding=newSystem.ServiceModel.BasicHttpBinding（）;

basicHttpBinding.ReaderQuotas=readerQuotas;

basicHttpBinding.MaxReceivedMessageSize=byteSize;

host.AddServiceEndpoint（serviceInterface,basicHttpBinding,url）;

host.Open（）;

测试

在浏览器中打入

8731/

8731/myDBControlHost/

（6）为Silverlight项目添加WCF引用

1.重新创建一个Silverlight项目

2.确保上步创建的[WCF宿主]已运行并已启动

3.在Silverlight中引用[WCF]服务

（7）开发Silverlight页面

//Canvas加载事件

privatevoidCanvas_Loaded（objectsender,RoutedEventArgse）

//保存按钮不可见

save.Visibility=Visibility.Collapsed;

//创建按钮

privatevoidcreate_Click（objectsender,RoutedEventArgse）

//清空文本框

x.Text="

y.Text="

0"

z.Text=System.DateTime.Now.ToString（）;

//-----------------------------------------------------------------

//保存按钮可见

save.Visibility=Visibility.Visible;

//创建按钮不可见

create.Visibility=Visibility.Collapsed;

//保存按钮

privatevoidsave_Click（objectsender,RoutedEventArgse）

//构建一个行对象

myService.myTablerow=newmySilverlight.myService.myTable（）;

row.x=x.Text;

row.y=double.Parse（y.Text）;

row.z=DateTime.Parse（z.Text）;

row.rowID=System.Guid.NewGuid（）;

//-------------------------------------------------------------------

//调用WCF服务完成保存

myService.ImyDBControlClientser=newmySilverlight.myService.ImyDBControlClient（）;

//保存完成后事件

ser.addMytableCompleted+=newEventHandler<

addMytableCompletedEventArgs>

（ser_addMytableCompleted）;

//保存

ser.addMytableAsync（row）;

//保存按钮不可见

//创建按钮可见

create.Visibility=Visibility.Visible;

//保存完成后

voidser_addMytableCompleted（objectsender,mySilverlight.myService.addMytableCompletedEventArgse）

MessageBox.Show（"

添加完成"

）;

privatevoidsearch_Click（objectsender,RoutedEventArgse）

//查询完成后的返回事件

ser.searchMyTableCompleted+=newEventHandler<

searchMyTableCompletedEventArgs>

（ser_searchMyTableCompleted）;

//查询

ser.searchMyTableAsync（double.Parse（y1.Text）,double.Parse（y2.Text））;

//查询完成后

voidser_searchMyTableCompleted（objectsender,mySilverlight.myService.searchMyTableCompletedEventArgse）

dg.ItemsSource=e.Result;