How to add a DataGridView to a Windows Form
To display data in a DataGridView on a Windows Form Add a new form to the Win Form Application project Drag a BindingSource from the Toolbox to the form The bindingSource object appears below the form Rename the Binding Source Select the…
DbArithmeticExpression arguments must have a numeric common type
The Microsoft Visual Studio 2013 Entity Framework database query does not support the subtraction of two dates to calculate TimeSpan. For example the following statement will throw a runtime error: site.VisitFrequencySec < ((TimeSpan)(dtNow -…
The underlying provider failed on Open
When you get the following error message in Microsoft Visual Studio 2013 check the inner exception. System.Data.Entity.Core.EntityException was unhandled HResult=-2146233087 Message=The underlying provider failed on Open. Source=EntityFramework The…
The Entity Framework provider … could not be loaded
When you create a new Microsoft Visual Studio 2013 project that uses the Entity Framework you may get the following error message: The Entity Framework provider type ‘System.Data.Entity.SqlServer.SqlProviderServices,…
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…
Microsoft .NET Framework source code
The Microsoft .NET framework source code is available at the address below. You can search the source code by class name. http://www.dotnetframework.org