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.Net Entity Framework: Check if data changed

by | Nov 11, 2013 | Uncategorized

Problem DataSets offer a method “GetChanges()” to check if the user modified any data, so the application can ask the user if the changes should be saved, e.g. when closing the window. But there is no “ready-to-use” method for this when using...

WPF: Wrong culture formatting

by | Nov 7, 2013 | C# .Net

Unfortunately, WPF does not apply certain localization settings automatically if the application is running e.g. on a german system. By default, the comma separator is an english “.” and not a “,”, etc. According to this site, you can run...

WPF for Beginners: Using Comboboxes in DataGrids

by | Nov 7, 2013 | C# .Net

Scenario You have 2 simple MySQL / SQL / SQlite database tables like “customer” and “offer” with a foreign key relation between them (1 customer, * offers). You want to show the offer table in a DataGrid, and the “customer” column...

VPN problems with Windows 8.1 and Shrew VPN Client

by | Nov 4, 2013 | Administration

Problem Using the Shrew VPN Client with Windows 8 (not 8.1) and a remote firewall Netgear FVS318v3: Everything runs fine. After upgrading to Windows 8.1, it seems to work first and the connection gets established – but a ping to your remote location fails. In...

Zotac Zbox: Add an external PWM fan

by | Oct 31, 2013 | Hardware

My Zotac Zbox ID41 sometimes gets quite hot inside, especially because it is placed in a closed shelf under the TV. Unfortunately, most of the Zotac Zboxes use Mini-PWM connectors. For those ones, splitter and converter cables are hard to find. So one way to solve...