Gets or sets a value that specifies the maximum number of messages actively processing across a ServiceHost.
(in System.ServiceModel.dll)
Visual Basic (Declaration)
Public Property MaxConcurrentCalls As Integer
Dim instance As ServiceThrottlingBehavior
Dim value As Integer
value = instance.MaxConcurrentCalls
instance.MaxConcurrentCalls = value
public int MaxConcurrentCalls { get; set; }
public:
property int MaxConcurrentCalls {
int get ();
void set (int value);
}
public function get MaxConcurrentCalls () : int
public function set MaxConcurrentCalls (value : int)
Property Value
Type:
System..::.Int32The upper limit of active messages in the service. The default is 16.
The MaxConcurrentCalls property specifies the maximum number of messages actively processing across a ServiceHost object. Each channel can have one pending message that does not count against the value of MaxConcurrentCalls until Windows Communication Foundation (WCF) begins to process it.
You can also set the values of this attribute by using the <serviceThrottling> element in an application configuration file.
The following code example shows the use of ServiceThrottlingBehavior from an application configuration file that sets the MaxConcurrentSessions, MaxConcurrentCalls, and MaxConcurrentInstances properties to 1 as an example. Real-world experience determines what the optimal settings are for any particular application.
<configuration>
<appSettings>
<!-- use appSetting to configure base address provided by host -->
<add key="baseAddress" value="http://localhost:8080/ServiceMetadata" />
</appSettings>
<system.serviceModel>
<services>
<service
name="Microsoft.WCF.Documentation.SampleService"
behaviorConfiguration="Throttled" >
<host>
<baseAddresses>
<add baseAddress="http://localhost:8080/SampleService"/>
</baseAddresses>
</host>
<endpoint
address=""
binding="wsHttpBinding"
contract="Microsoft.WCF.Documentation.ISampleService"
/>
<endpoint
address="mex"
binding="mexHttpBinding"
contract="IMetadataExchange"
/>
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior name="Throttled">
<serviceThrottling
maxConcurrentCalls="1"
maxConcurrentSessions="1"
maxConcurrentInstances="1"
/>
<serviceMetadata
httpGetEnabled="true"
httpGetUrl=""
/>
</behavior>
</serviceBehaviors>
</behaviors>
</system.serviceModel>
</configuration>
Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
.NET Framework
Supported in: 3.5, 3.0
Reference