Databases
StackOverflow2013
Postsdbo
PO
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    primarykey
    data
    text
    <p>The <a href="http://msdn.microsoft.com/en-us/library/system.servicemodel.instancecontextmode.aspx" rel="nofollow">InstanceContextMode</a> property indicates how WCF will create instances of your service class and whether those instances will be reused across requests.</p> <ul> <li><strong>PerSession</strong>: (the default) an instance of your service will be created for each WCF session, for channels that support sessions (otherwise, the behavior is the same as PerCall); this value is useful if you maintain state within your service class for each client session</li> <li><strong>PerCall</strong>: a new instance of your service class will be created for each WCF operation (method call) from the client</li> <li><strong>Single</strong>: only a single service instance will be created within the host process, which will service all incoming requests; all calls will be serialized to the service unless the service's <a href="http://msdn.microsoft.com/en-us/library/system.servicemodel.servicebehaviorattribute.concurrencymode.aspx" rel="nofollow">ConcurrencyMode</a> behavior is set to <code>Multiple</code>.</li> </ul> <p>For high-volume stateless services, using <code>Single</code> and <code>ConcurrencyMode.Multiple</code> can reduce the number of service instances allocated and the associated pressure on the garbage collector. WCF doesn't require/assume that your service is stateless, though, which is why <code>PerSession</code> is the default.</p> <p>You can verify the behavior of the different instance context modes by setting a breakpoint in your service's default constructor.</p>
    singulars
    1. This table or related slice is empty.
    1. PORegarding WCF InstanceContextMode
      singulars
      1. PTQuestion
    1. PTAnswer
    1. USBrent M. Spell
    1. USBrent M. Spell
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PORegarding WCF InstanceContextMode
      singulars
      1. PTQuestion
    1. This table or related slice is empty.
    1. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTAcceptedByOriginator
    1. COthanks for ur answer. i am not good in wcf and just learning it. so please guide me how can i debug the wcf service just to understand better the InstanceContexMode. can u write simple code which i can debug and understand the behaviour of InstanceContexMode debug in step-by-step. thanks
      singulars
      1. PO
      1. USThomas
    2. COI have a WCF extensions library with lots of samples [here](https://github.com/bspell1/wcfex). If you pull down the code, there is an in-process sample that should allow you to set breakpoints in a WCF service. The sample is under Samples/InProc/ConsoleEcho/Client. The service is in MockOutput.cs, to which you should be able to add the ServiceBehavior attribute and set a breakpoint in.
      singulars
      1. PO
      1. USBrent M. Spell
    3. COwhat r u trying to say InProc??
      singulars
      1. PO
      1. USThomas
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload