Justin Cooney

Web Development Tips and Examples

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about

I am a Senior Applications Programmer / Analyst with years of experience developing enterprise solutions using the Microsoft technology stack including C#, VB.NET, ASP.NET, AJAX, IIS and SQL Server. I specialize in Web application development with a focus on building secure systems, integrating applications, and designing robust database structures.

Category: .Net

  • InvalidCastException – Failed to convert parameter value from a XmlDocument to a String

    If you are working with XML data types in your .NET and SQL Server code, then you will most likely encounter this error message at some point. Specifically, this error is related to improperly passing an XML value as a SQLParameter to your database. Since most of the work one does with XML in .NET…

  • The ASP.NET Dictionary Object

    I have been working with ASP.NET collections and thought a more detailed look into one of the most useful classes also know as the Dictionary collection object is in order. To review: the Dictionary class is part of the System.Collections.Generic Namespace. If you haven’t already, then it’s worth having a look at the list of collections contained…

  • Configuring a Web Server to Allow Excel File Creation via the Interop.Excel Namespace

    In an earlier article I covered how to generate Excel reports on the fly using the Interop.Excel Namespace. This is a really handy technique that also gives you full control over the minutia of the document you are creating. However the catch in using this technique is that you will need to update the configuration of…