Warning: Attempt to present … on … while a presentation is in progress!
There is a warning message in Xcode, the Apple iOS development environment that can have many different causes. Warning: Attempt to present … on … while a presentation is in progress! In my case Xcode displayed the warning because a button…
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…
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…
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…
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…
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…
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 – 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…
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 ->…
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…