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2003 Blog posts

Save your UserSettings in an Isolated Store


I like applications who remember my settings the next time I use it. This is an easy feature which is often forgotten. Most of the time because it is quite some work. With this article I want to help you with this and saving you a lot off work.

Then there is always the question 'where do we store the settings?'. I see a lot of applications using the Registry, ini-files or xml-files. All these solutions are causing a security risk. Especially when you want your application to be downloaded from the web using the 'no touch' deployment features of .NET.

Microsoft has solved this problem for me by introducing an isolated stores. With these stores, you can read and write data that less trusted code cannot access and prevent the exposure of sensitive information that can be saved elsewhere on the file system. Data is stored in compartments that are isolated by the current user and by the assembly in which the code exists.

The downloadable zipfile contains a UserSettingLibrary which can be used to store user settings into an isolated store.



On November 7th, at the OOPSLA Conference in Seattle, WA, C# creator Anders Hejlsberg unveiled several potential language features for the next major release of Visual C# .NET. The four primary features Anders spoke about were:

  • Generics, a form of C++ templates that makes reusing existing code easier
  • Iterators, a construct that makes traversing collections of data significantly faster and easier
  • Anonymous methods, an easier way to perform simple tasks using delegates
  • Partial types, a means for programmers to split code across multiple files
Read more

ASP.NET DataIslandGrid Control


The standard ASP.NET DataGrid control is a great control. You can use it for many things, it even supports Paging and Column Sorting. Those last two option although work using postbacks to the server.

Internet Explorer 5.0 (and higher) support XML Client-side Data-Binding. This is a powerful DHTML feature which is not used in the .NET Framework. It allows.

The DataIslandGrid control is an ASP.NET grid which is bound to a DataTable in a DataSet. The DataSet is serialized and rendered to an Xml DataIsland. The Grid uses Tabular Data-Binding to the Xml DataIsland. This makes it possible to support client-side Column Sorting and Paging. The Column Sorting is implemented using a JavaScript and a StyleSheet in a second Xml DataIsland.


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