Download Beginning WF : Windows Workflow in .NET 4.0 by Mark J Collins PDF

By Mark J Collins

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Then there’s a WriteLine activity named “Hello” and an If activity named “Adjust for PM”. This is followed by a While activity named “Sound Bells”, a WriteLine activity named “Display Time”, and an If activity named “Greeting”. One key point that I want you to see is that there is no executable code here. This file is just a nested collection of properties. For example, to increment the counter, you would normally expect to see a line of code like this: counter = counter + 1; Instead you have an Assign class with a counter expression and a counter + 1 expression.

Listing 1-2. Else> I made some lines bold to help you find the top-level activities. First, the Variables section defines the two variables you created. Then there’s a WriteLine activity named “Hello” and an If activity named “Adjust for PM”. This is followed by a While activity named “Sound Bells”, a WriteLine activity named “Display Time”, and an If activity named “Greeting”. One key point that I want you to see is that there is no executable code here. This file is just a nested collection of properties.

The Direction should be In. Click the ArgumentType and expand the drop-down menu, shown in Figure 4-7. Figure 4-7. The ArgumentType drop-down menu Select the last entry (Browse for Types). This will display the dialog shown in Figure 4-8. Figure 4-8. Selecting the Order class for the ArgumentType Expand the OrderProcess assembly, select the Order class, and click OK. 50 CHAPTER 4 n PASSING ARGUMENTS n Caution If the OrderProcess assembly is not shown or does not contain the Order class, you have to build the solution first.

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