I am working a new version of AdvGen CMS. I found the ApplicationUserManager has to use their Entity Framework. I cannot just build our own ApplicationUserManager to switch a different ORM layer. You have to build your own IUserStore like this:

public class AdvGenUserStroe : IUserStore

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And then build your own ApplicationUserManager which is using this custom user store.
This is the only way to have a Custom ASP.NET Identity in MVC 5

There is no such things for DataGrid.DataBinding() in Datagrid, WPF, the data grid should update itself if any items in the collection is changed. However, I found if the data source is edited by other windows, it won't refresh the data grid.
Well, you can use DataGrid.Items.Refresh(), but sometime, I got an exception about not allow editItem, something like that.
I found the best way is setting the item source to null and set item source to be bounded the collection again, like this:

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I built a Cryptography application by using TripleDES. But I got an error:
System.Security.Cryptography.CryptographicException: Specified key is not a valid size for this algorithm.
The key I used was in an incorrect length, it should 16 bytes length.
For example:

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I am running out of licenses for Visual Studio Professional. Solution 1 is asking for more budget this year in IT. Another option is using Express version. I know this version doesn't come with automated testing and class diagrams, those sorts of developers' support tools.However, we don't use those tools a lot. We just build MVC website. So far, Visual Studio 2013 Express is ok for us, it supports NuGet, MVC and EF. I felt that is even faster then the Professional version.

I tried the icon attribute in MenuItem. It doesn't work.Actually, you need to modify the header element like this:

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