WorkflowInstance.Start Method

Start calls ExecuteActivity on the root activity of this workflow instance. If Start encounters an exception, it terminates the workflow instance by calling Terminate with the Message property of the exception passed as the reason for the termination.

The following code example demonstrates how you can use the Start method to start a WorkflowInstance in a workflow host. The code creates an instance of the WorkflowRuntime, adds services to the runtime, and then demonstrates the recommended way to create a WorkflowInstance object. It creates a Type object and casts it to one of the workflow objects with which the host is associated. The code next initializes WorkflowInstance by calling the CreateWorkflow method and passing the previously created type to it. The WorkflowInstance is started with the Start method call.

This code example is part of the Canceling a Workflow SDK sample from the Program.cs file. For more information, see Canceling a Workflow.

Type type = typeof(SampleWorkflow1);
WorkflowInstance workflowInstance = workflowRuntime.CreateWorkflow(type);
workflowInstance.Start();

.NET Framework

• Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

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