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Explained: EF 6 and “Could not determine storage version; a valid storage connection or a version hint is required.” by Ken Cox [MVP]

I have a legacy ASP.NET 3.5 web site that I’ve upgraded to a .NET 4 web application. At the same time, I upgraded to Entity Framework 6. Suddenly one of the pages returned the following error: [ArgumentException: Could not determine storage version; a...

Entity Framework Code-First to Provide Replacement for ASP.NET Profile Provider by Ken Cox [MVP]

A while back, I coordinated a project to add support for the SQL Table Profile Provider in ASP.NET 4 Web Applications.  We urged Microsoft to improve ASP.NET’s built-in Profile support so our workaround wouldn’t be necessary. Instead, Microsoft plans...

Get the ASP.NET Patch Now by Ken Cox [MVP]

Hey folks, the permanent fix has been released for the ASP.NET vulnerability. Download and install your copy now before the bad guys mess with your Web server and its sites! http://support.microsoft.com/kb/2416472

‘Schema specified is not valid’ error on Upgrading to ASP.NET 4 by Ken Cox [MVP]

To take advantage of improvements in ASP.NET 4 and Entity Framework 4, I decided to upgrade my ASP.NET 3.5 site to 4.0. Most everything went smoothly except for the following error: Schema specified is not valid. Errors: error 0194: All artifacts loaded...

DropDownList Lookups Failing Due to SQL Char DataType by Ken Cox [MVP]

Here’s today’s episode of “Losing Time on Something Dumb”… In my ASP.NET 3.5 project (using Telerik’s AJAX controls) I filled a RadComboBox with Items and needed to set the selected item to the current value of the object (I’m using Entity Framework)...

Fixing EntityDataSourceWrapper Error in EF (VB Version) by Ken Cox [MVP]

I lost a lot of time today on this error: ‘EntityDataSourceWrapper' does not contain a property with the name …' The project is ASP.NET 3.5 using Entity Framework and VB. I’m using the Telerik RadControls for ASP.NET AJAX (a sweet suite!). In my app,...

Solving a Mystery About 'BC30205: End of statement expected' by Ken Cox [MVP]

A reader of my book ran into the strangest problem that had me going around in circles. He was working through one of the ASP.NET 3.5 examples in Visual Web Developer 2008 and was getting weird errors like these: error BC30205: End of statement expected...
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Doing CRUD Operations in Silverlight 2 Against ADO.NET Data Services by Ken Cox [MVP]

Many of us have been struggling to create business-oriented (LOB) forms using Silverlight 2 and ADO.NET Data Services. There are plenty of community samples on reading data, but a dearth of real-world content on creating and updating records. The Silverlight...

Blocked by the Silverlight ManagedRuntimeError 4004 by Ken Cox [MVP]

For my Silverlight 2 prototype business app, I wanted to try capturing JSON data from a WCF service and caching it in isolated storage. I found a nice example by Tim Heuer that I updated to the RTW version. After setting up the WCF service on a VPC running...

Review: Advanced ASP.NET AJAX Server Controls For .NET 3.5 by Ken Cox [MVP]

Advanced ASP.NET AJAX Server Controls For .NET 3.5 is a fine resource for ASP.NET developers who want to build high performance, data-driven Web applications with a richer user interface. The introduction of ASP.NET AJAX 2.0 extensions caught many of...
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