officefileapi-devexpress-dot-spreadsheet-dot-workbook-3bf8c231.md
Occurs before a custom assembly is loaded for use as the Entity Framework data source during mail merge. Allows you to cancel loading.
You need a license for the DevExpress Office File API Subscription or DevExpress Universal Subscription to use this event in production code.
Namespace : DevExpress.Spreadsheet
Assembly : DevExpress.Docs.v25.2.dll
NuGet Package : DevExpress.Document.Processor
public event SpreadsheetCustomAssemblyLoadingEventHandler CustomAssemblyLoading
Public Event CustomAssemblyLoading As SpreadsheetCustomAssemblyLoadingEventHandler
The CustomAssemblyLoading event's data class is SpreadsheetCustomAssemblyLoadingEventArgs. The following properties provide information specific to this event:
| Property | Description |
|---|---|
| Cancel | Gets or sets a value indicating whether the event should be canceled. Inherited from CancelEventArgs. |
| ContextName | Gets the name of the Entity Framework context. |
| Handled | Gets or sets whether the e.Cancel setting in the event handler makes the final decision on loading the assembly. |
| Path | Gets the path to the external assembly containing the Entity Framework model. |
See Also