101 Microsoft® Visual Basic® .NET Applications

Application #22. Build an Offline Application

This application builds upon the applications shown for data-entry forms and data binding with navigation by adding the ability to work offline as well as undo changes. By offline we mean that the application doesn’t need to be connected to a database to persist changes between application executions. You’ll see that this offline capability introduces several challenges and pitfalls. Figure 3-14 shows a screen shot of Application #22.

Figure 3-14. Application #22.

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Building Upon... Application #4: Try/Catch/Finally Application #12: Use a DataSet and DataView Application #16 ...