asp.net barcode generator source code Conditional Activity Group Within State Machine Workflow in C#.NET

Making ECC200 in C#.NET Conditional Activity Group Within State Machine Workflow

Conditional Activity Group Within State Machine Workflow
DataMatrix Creator In Visual C#
Using Barcode printer for .NET framework Control to generate, create Data Matrix ECC200 image in .NET framework applications.
www.OnBarcode.com
Recognize ECC200 In Visual C#
Using Barcode reader for .NET framework Control to read, scan read, scan image in .NET framework applications.
www.OnBarcode.com
You can use the CAG in a similar manner in a State Machine workflow. Keep the Sequential workflow project open, as you can use the same code. Create a new VB State Machine Workflow Console Application called VBCAGStateMachineExample. Copy the code from Workflow.vb from the Sequential workflow to the Workflow.vb file of the State Machine workflow. There will be a lot of errors at first until all the workflow has been added. Change back to the Workflow Designer and make the name of the default state activity CompletedState, and set it as completed state. Add a new State activity and call it FirstState. Within the FirstState activity, add a StateInitialization activity. Within the StateInitialization activity, add a CAG. Within the CAG, add two Code activities named Code1 and Code2, similar to what was done in the Sequential workflow example. Generate the handlers for both Code activities and set the WhenCondition for each Code activity to the appropriate WhenCondition code that was added. Finally, on the CAG, set the UntilCondition property to the UntilCondition code that was created. Again, don t forget to add a SetState activity after the CAG with a target of the CompletedState. Otherwise, the State Machine workflow won t complete. The FirstState activity should look like Figure 3-7. Run the workflow, and you ll get the same result as the Sequential workflow. The Code1 message box appears four times, and the Code2 message box appears from five to eight times. As with the other workflow examples, the code for C# is the same as for the Sequential and the State Machine workflows, so I won t show that code.
PDF-417 2d Barcode Generator In Visual C#
Using Barcode creation for .NET Control to generate, create PDF 417 image in .NET framework applications.
www.OnBarcode.com
EAN / UCC - 13 Creation In C#.NET
Using Barcode generation for .NET framework Control to generate, create EAN-13 Supplement 5 image in VS .NET applications.
www.OnBarcode.com
CHAPTER 3 CONDITIONAL ACTIVITIES
Draw Barcode In C#.NET
Using Barcode drawer for VS .NET Control to generate, create Barcode image in Visual Studio .NET applications.
www.OnBarcode.com
Creating Matrix Barcode In Visual C#
Using Barcode generator for VS .NET Control to generate, create Matrix image in VS .NET applications.
www.OnBarcode.com
Figure 3-7. CAG within FirstState activity
QR Code JIS X 0510 Generation In Visual C#
Using Barcode maker for .NET framework Control to generate, create QR Code JIS X 0510 image in .NET applications.
www.OnBarcode.com
EAN8 Maker In Visual C#.NET
Using Barcode encoder for .NET framework Control to generate, create EAN / UCC - 8 image in Visual Studio .NET applications.
www.OnBarcode.com
Real-World Example
Drawing DataMatrix In None
Using Barcode maker for Software Control to generate, create ECC200 image in Software applications.
www.OnBarcode.com
Generating Data Matrix ECC200 In None
Using Barcode creator for Online Control to generate, create Data Matrix ECC200 image in Online applications.
www.OnBarcode.com
The previous chapter introduced the purchase order application by setting up the database, table, and code to add a purchase order. Now, you ll use the activities covered in this chapter (IfElse) to validate the data in the parameters, and you ll also use the While activity to display data. Begin by opening the VBPurchaseOrderConsole application created in the previous chapter. Open Module1.vb and place a comment marker (single quote) next to the lines of code that prompt for and read the part number: 'Console.Write("Enter the Part Number:") 'Parameters.Add("PartNumber", Console.ReadLine) Execute the workflow. The prompt for the part number won t appear, and no value will be added to the record for the part number. However, the record will be created and a purchase order number provided. All public properties of a workflow are optional, and therefore might not be provided by the outside application. For this reason, you ll use a series of IfElse activities to verify that all parameters have been provided and they re within a valid range. If a parameter is either not provided or not in the correct range, a message box will appear for the user. The purchase date must either be the current date or a future date, and the quantity ordered must be greater than zero. The logic for this validation is as follows:
Code 3 Of 9 Encoder In .NET Framework
Using Barcode generation for Reporting Service Control to generate, create Code 39 Full ASCII image in Reporting Service applications.
www.OnBarcode.com
Printing EAN-13 Supplement 5 In Java
Using Barcode creator for Android Control to generate, create EAN-13 image in Android applications.
www.OnBarcode.com
CHAPTER 3 CONDITIONAL ACTIVITIES
Code-128 Decoder In VB.NET
Using Barcode decoder for Visual Studio .NET Control to read, scan read, scan image in .NET applications.
www.OnBarcode.com
QR Code ISO/IEC18004 Maker In None
Using Barcode drawer for Font Control to generate, create QR Code JIS X 0510 image in Font applications.
www.OnBarcode.com
If PartNumber is empty then Display error message Else If PurchaseDate is empty then Display error message Else If ExpectedDate is empty then Display error message Else If BuyerLogin is empty then Display error message Else If BuyerName is empty then Display error message Else If QuantityOrdered is empty then Display error message Else If ExpectedDate<CurrentDate then Display error message Else If QuantityOrdered>0 then AddPurchaseOrder Else Display error message End if End if End if End if End if End if End if End if Add an IfElse activity called CheckPartNumber. Name the left branch PartNumberPresent and the right PartNumberMissing. Right-click the workflow and add the following code to the end of the workflow code file: Public Sub PartNumberPresentCondition(ByVal sender As Object, ByVal e As ConditionalEventArgs) e.Result = StrPartNumber <> String.Empty End Sub Public Sub PartNumberMissingCondition(ByVal sender As Object, ByVal e As ConditionalEventArgs) e.Result = StrPartNumber = String.Empty End Sub
EAN128 Creator In Objective-C
Using Barcode maker for iPhone Control to generate, create GTIN - 128 image in iPhone applications.
www.OnBarcode.com
Printing UCC - 12 In Java
Using Barcode generation for BIRT Control to generate, create UPCA image in BIRT applications.
www.OnBarcode.com
Data Matrix ECC200 Generator In None
Using Barcode encoder for Online Control to generate, create Data Matrix 2d barcode image in Online applications.
www.OnBarcode.com
Making Barcode In VS .NET
Using Barcode creator for Reporting Service Control to generate, create Barcode image in Reporting Service applications.
www.OnBarcode.com
Draw Data Matrix 2d Barcode In None
Using Barcode encoder for Microsoft Excel Control to generate, create ECC200 image in Microsoft Excel applications.
www.OnBarcode.com
UPC-A Supplement 2 Generator In Java
Using Barcode encoder for Java Control to generate, create GS1 - 12 image in Java applications.
www.OnBarcode.com
Copyright © OnBarcode.com . All rights reserved.