WPF Spreadsheet - How to customize a message dialog displayed when a runtime error occurs

This example demonstrates how to display a custom message in place of the default user warning dialog box.

Implementation Details

Create a class that implements the IMessageBox service and use the SpreadsheetControl.ReplaceService method to register this class in place of the default service. Note that due to WPF Spreadsheet implementation specifics, it is necessary to replace the built-in service after the control is completely loaded.

The IMessageBox service provides the ShowMessage, ShowOkCancelMessage, ShowYesNoCancelMessage, ShowYesNoMessage, and ShowDataValidationDialog methods that are called when the SpreadsheetControl needs user attention.

Files to Review

CS	VB
MainWindow.xaml	MainWindow.xaml
MainWindow.xaml.cs	MainWindow.xaml.vb
MyMessageBoxService.cs	MyMessageBoxService.vb

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