generate barcode image vb.net Parallel Activities in C#

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Parallel Activities
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5. Type CheckContinue into the Condition property, after first clicking the plus sign (+) to expand the UntilCondition property. Once Visual Studio adds the event handler and switches you to the code editor, return to the visual workflow designer.
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6. Build the solution (press F6) so that the custom activities in the project will appear in the Toolbox. Now drag your first child activity and drop it into the CAG. From the Visual Studio Toolbox, drag a copy of the custom SetLevel activity onto the visual workflow designer surface and drop it into the CAG activity, to the right of the < button in the rectangular area. The setLevel1 activity appears in the main CAG window.
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The lock icon in the main CAG window indicates that the child activity is in preview mode. (This is also indicated by the text above the main CAG window.) Although you can edit setLevel1 s properties by entering edit mode, you can also work with setLevel1 s properties when in preview mode by clicking the setLevel1 s activity icon in the rectangular window to the right of the < button.
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7. Let s enter the CAG s edit mode. Click the tiny square button next to the word Preview. This button is a toggle button, so selecting it again directs the CAG to enter preview mode. 8. With the CAG in edit mode, you can work with a child activity s properties by selecting the activity in the main CAG window (the familiar rounded-corner shaded rectangle
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Working with Activities
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with the activity s name inscribed within). Click the rounded corner rectangle to activate setLevel1 s properties.
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9. Select setLevel1 s WhenCondition property to activate its down arrow, and then select Code Condition from the selection list.
10. Expand the WhenCondition property, and enter AlwaysExecute into the Condition property s text box. Visual Studio again adds the method for you and switches you to the code editor. Return to the visual workflow designer so that you can establish more setLevel1 activity properties.
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Parallel Activities
11. Type OnSetLevel into setLevel1 s Invoked property and press Enter. Visual Studio adds the OnSetLevel event handler to the Workflow1 code base and switches you to the code editor. Return to the visual workflow designer once again.
12. The last setLevel1 property you need to work with is the Level property. Select the Level property to enable the browse (...) button, and then click the browse button. This activates the Bind Level To An Activity s Property dialog box. Click the Bind To A New Member tab, and type TankLevel in the New Member Name field. After first making sure Create Property is selected, click OK.
13. You re now ready to place another child activity into the CAG. Drag a copy of the custom Stop activity from the Toolbox, and drop it into the rectangular window to the right of the <, dropping it to the right of the setLevel1 activity.
Part II
Working with Activities
14. The properties for stop1 are now available for editing in the Properties window. Select its WhenCondition to activate the down arrow, and select Code Condition from the selection list.
15. Click the + next to WhenCondition to show the Condition property. In this case, you can share conditional evaluation with the setLevel1 activity, so select the Condition property to enable its down arrow and select AlwaysExecute from the list of available conditional evaluation methods.
16. Next select stop1 s Invoked property, and enter OnStop into its text input box. Of course, this adds the OnStop method. Simply return to the visual workflow editor once the method is added.
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Parallel Activities
17. The Stop activity is now fully configured, so let s add a third child activity to the CAG. This time, drag an instance of the UnderfillAlert custom activity onto the designer s surface and drop it into the CAG to the right of the stop1 activity.
18. Turning to underfillAlert1 s properties, click its WhenCondition to activate the down arrow and select Code Condition from the list.
19. Expand the WhenCondition by clicking the +, and enter CheckEmpty into the Condition edit field. This adds the CheckEmpty method to your workflow code. Return again to the visual workflow designer.
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