Monthly Archives: September 2013

Xcode app development troubleshooting

This post is a collection of common error messages you may receive during application development in Xcode. Error message Receiver ‘NSManagedObjectContext’ for class message is a forward declaration Solution Add #import <CoreData/CoreData.h> to the … – Prefix.pch Prefix header file in the Supporting Files folder  

QWERTY Hungarian keyboard on an English Macintosh keyboard

The English characters on the English and Hungarian keyboards are almost at the same place. The exceptions are the Z and Y keys, those are swapped. When you activate the Hungarian keyboard on a Mac with an English keyboard, the Z key will display Y and the Y key will display Z on the screen. …

Continue reading “QWERTY Hungarian keyboard on an English Macintosh keyboard”

Save an image in the Xcode iPhone simulator

When you are testing an app in the Xcode iOS Simulator sometimes you need to select an image in the photo library. To add images to Photos in the Xcode iOS Simulator Run you app in the iOS iPhone Simulator In the Hardware menu select Home to hide your app Open the Safari browser in …

Continue reading “Save an image in the Xcode iPhone simulator”

How to lock your Macintosh and Windows computer

Always lock your computer to protect your secrets in the office while you are getting a cup of water from the kitchen. To lock a Macintosh computer Press the Control – Command – Q keys, or In the upper left corner click the Apple logo and select Lock Screen To lock a Windows computer In Windows, …

Continue reading “How to lock your Macintosh and Windows computer”

Microsoft Azure – Storage – Part 5 – Delete blobs with a .NET application

In the prior article of the Microsoft Azure storage series we have downloaded a file (blob) from the container. In this part we will add a method to delete a blob in the Azure storage container. Delete a blob  in the storage container Add the DeleteBlob method to the Azure_Helper Open the Azure_Helper.cs file in …

Continue reading “Microsoft Azure – Storage – Part 5 – Delete blobs with a .NET application”

Microsoft Azure – Storage – Part 4 – Download files with a .NET application

In the third part of the Microsoft Azure Storage series we have extended our .NET application to list the contents of a container.  Today we will add a method to our application to download files from the storage container. Download blobs from the Microsoft Azure storage Create the DownloadFile method in the Azure Helper Open …

Continue reading “Microsoft Azure – Storage – Part 4 – Download files with a .NET application”

Microsoft Azure – Storage – Part 3 – List the contents of the container with a .NET application

In the second part of the Azure Storage series we have developed a .Net application that can create a Microsoft Azure storage  container and upload files into it. Today we will extend the functionality of our application to list the files in the container. List the files in the container First let’s create a class …

Continue reading “Microsoft Azure – Storage – Part 3 – List the contents of the container with a .NET application”

Microsoft Azure – Storage – Part 2 – Upload files with a .NET application

In the first part of the Azure Storage series we have created a Microsoft Azure storage in the “cloud”. Now we will create a C# application to upload, list and download files. Create a Blank  Solution In the File menu select New -> Project… Add a new Console Application project to the solution In the …

Continue reading “Microsoft Azure – Storage – Part 2 – Upload files with a .NET application”

Microsoft Azure – Storage – Part 1 – Getting started

Sign up for Microsoft Azure To create a Microsoft Azure storage account first create a Microsoft Azure account. If you are an MSDN subscriber you may open an account without using a credit card and limit your usage to the MSDN provided $150 free monthly allowance. Once you created your Microsoft Azure account open the …

Continue reading “Microsoft Azure – Storage – Part 1 – Getting started”