例子說明:
WCF Workflow Service 創建啟用WF的WCF服務
例1:一個用於計算加法的服務 添加WCF Workflow Service
當添加完成後,
1.VS2010會自動生成一個模板,擴展名為xamlx,
2.在模板中添加兩個Activity,[Receive]與[Send],其中[Receive]是用於接收客戶端請求的,[Send]是用於向客戶端發送消息的.
3.將[Receive]的[OperationName]設為[GetData],這就是WCF服務的方法名
4.添加一個int型變量[data],將[data]綁定到[Receive.Content]上,做為WCF服務方法名的參數
5.將[data]綁定到[Send.Content]上,做為WCF服務方法的返回值
設計流程
場景:
設計一個如下方式的服務
double addxy(double myX,double myY)
{
double myXY = yX + myY;
return myXY;
}
1.刪除vs2001自動添加的data變量
2.添加double型變量[x],[y],[xy]
3.將[Receive]的[OperationName]設為[addxy],將[CanCreateInstance] 屬性設為[true]
4.將[x],[y]綁定到[Receive.Content]上,做為WCF服務方法名的參數
5.將[xy]綁定到[Send.Content]上,做為WCF服務方法的返回值
6.添加[Assign]用於完成計算
客戶端調用
1.添加一WPF程序
2.引用上面添加的[addService]服務
3.完成WPF程序的如下設計
<Grid>
<TextBox Height="23" HorizontalAlignment="Left" Margin="44,54,0,0" Name="x" VerticalAlignment="Top" Width="73" />
<TextBox Height="23" HorizontalAlignment="Right" Margin="0,54,258,0" Name="y" VerticalAlignment="Top" Width="77" Text=" " />
<TextBox Height="23" HorizontalAlignment="Left" Margin="340,0,0,234" Name="xy" VerticalAlignment="Bottom" Width="83" Text="" />
<TextBlock Height="23" HorizontalAlignment="Left" Margin="135,57,0,0" Name="textBlock1" Text="+" VerticalAlignment="Top" />
<Button Content="=" Height="23" HorizontalAlignment="Left" Margin="266,54,0,0" Name="add" VerticalAlignment="Top" Width="51" Click="add_Click" />
</Grid>
private void add_Click(object sender, RoutedEventArgs e)
{
myService.ServiceClient server = new myService.ServiceClient();
double myX = double.Parse(x.Text);
double myY = double.Parse(y.Text);
double myXY = server.addxy(myX, myY);
xy.Text = myXY.ToString();
}
4.調用結果
例2:自定義對象的傳遞
場景:
還是加法服務,但設計方式如下
class myData
{
double x,y,xy;
}
myData addxy(myData mydata)
{
mydata.xy=mydata.x + mydata.y;
return mydata;
}
添加WCF Workflow Service
添加一個名為addObjService的[WCF Workflow Service]
添加自定義數據類
namespace wcfwfSample
{
[DataContract()]
public class myData
{
[DataMember()]
public double x
{ set; get; }
[DataMember()]
public double y
{ set; get; }
[DataMember()]
public double xy
{ set; get; }
}
}
設計流程
客戶端調用
1.添加一WPF程序
[WpfApplication2]
2.引用上面添加的[addObjService]服務
3.完成WPF程序的如下設計
<Grid Name="dataRoot" Loaded="dataRoot_Loaded">
<TextBox Height="23" HorizontalAlignment="Left" Margin="44,54,0,0" VerticalAlignment="Top" Width="73" Text="{Binding Path=x,Mode=TwoWay}" />
<TextBox Height="23" HorizontalAlignment="Right" Margin="0,54,258,0" VerticalAlignment="Top" Width="77" Text="{Binding Path=y,Mode=TwoWay}"/>
<TextBox Height="23" HorizontalAlignment="Left" Margin="340,0,0,234" VerticalAlignment="Bottom" Width="83" Text="{Binding Path=xy,Mode=TwoWay}" />
<TextBlock Height="23" HorizontalAlignment="Left" Margin="135,57,0,0" Name="textBlock1" Text="+" VerticalAlignment="Top" />
<Button Content="=" Height="23" HorizontalAlignment="Left" Margin="266,54,0,0" Name="add" VerticalAlignment="Top" Width="51" Click="add_Click" />
</Grid>
private void add_Click(object sender, RoutedEventArgs e)
{
myData data= dataRoot.DataContext as myData;
ServiceClient server = new ServiceClient();
server.addxy(ref data);
this.dataRoot.DataContext = data;
}
private void dataRoot_Loaded(object sender, RoutedEventArgs e)
{
dataRoot.DataContext = new myData();
}
4.調用結果
示例代碼：http://www.bianceng.net/dotnet/201208/244.htm
