Using Output expressions with the Microsoft Rules engine

The Microsoft Rules engine is a powerful tool to isolate business logic from an application and supports output parameters. Suppose we have a requirement to detect duplicate…

Shortening CustomCommand development time by using a proxy

One of the most time-consuming processes when developing with Hexagon G/Technology is creating custom commands. The usual development approach consists of the following iterative process: During testing,…

Workaround for the Dotnet Maui Tabs ‘OnAppearing’ event

Tabs in dotnet maui have an ‘OnAppearing’ event which you would expect to be called each time a tab is activated. This however is not the case…

A Multilevel Responsive Blazor-menu

When you generate a Blazor-server app or Webassembly the standard template generates a menu docked to the left which is responsive, but has some drawbacks : It…

Invoking Oracle Spatial from a Custom Command

Consider a requirement where the centroid of a set of points needs to be retrieved within a custom command. This can be achieved using the ‘GTDataProvider.DataContext.Execute‘-method:

Rubberbanding in G/Technology

Whenever a user is digitizing a polygon, he expects feedback when moving the cursor before actually adding a point, the system should ‘rubberband’ the position under the…

Specialized ViewComponents

Suppose you want to introduce an inheritance chain in ASP.Net Core to use some businesslogic in a baseclass : ViewComponentSpecialized.Detail renders like this : If you invoke…

Configuring Webservice endpoints in a .Net Core Webapplication

If you need to invoke a WCF-Soap compliant Webservice from an ASP.Net application, the endpoints for it are stored in the Web.Config: If you need to invoke…

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Sorting and merging geometries in Oracle Spatial

Consider a requirement where an unsorted set of geometries needs to be merged into a single geometry. Take for instance the following set of geometries where: a…

SDO_GEOM.VALIDATE_GEOMETRY_WITH_CONTEXT 3D bug workaround

The SDO_GEOM.VALIDATE_GEOMETRY_WITH_CONTEXT function fails for 3D Compound line strings geometries as discussed over here. This is illustrated by the following sample: 2d: produces: While the same geometry…