Alternative MDI or SDI Solution for .NET

March 5, 2008 at 8:24 AMAmer Gerzic

Multiple Document Interface (MDI) is a technique to separate data layer from presentation layer, which is primarily utilized in MFC. As an MFC developer looking to develop applications in .NET, I was searching for a similar concept. My interest was mostly in GUI design, rather than complete MDI/SDI solution. At first, I was very happy to learn that Windows Forms provided assistance in MDI development. As always, I fired up VS.NET 2005 and created sample project. Couple of minutes later, I had MDI-like application, where I could add/remove views very quickly. It felt too good to be true, which later proved that it was. At first I wanted all of my child views to be shown maximized. In addition, I wanted all child views without a control bar. Everything went well, except that my forms could not get rid of control bar. In addition, form resizing did not function properly. As always, I searched the web and found numerous attempts to solve these issues. All solutions suggested following steps:
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Posted in: .NET | C#

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Displaying IEnumerable .NET Collection with Crystal Reports

February 26, 2008 at 11:41 AMAmer Gerzic

In my previous post Displaying .NET DataSet with Crystal Reports I discussed one way to report the data that does not come directly from a database. In this way, it is possible to preform more complex data analysis and present the result using Crystal Report engine. Following post addresses similar issue. However, here, the data to be presented is not stored in a DataSet, but rather in a .NET Collection, which implements IEnumerable interface.
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Posted in: .NET | ASP.NET | C# | Crystal Reports

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Displaying .NET DataSet with Crystal Reports

February 26, 2008 at 8:36 AMAmer Gerzic

Couple of days ago, I started playing with Crystal Reports engine included with Visual Studio.NET. After creating several reports using SQL Express database, I started wondering how to create reports that require more sophisticated data analysis. At first, my thoughts were to utilize stored procedures to create report result, and and then display the result using Crystal Report engine. However, it turned out that Crystal Report engine has some limitations when it comes down to stored procedures. Crystal Reports documentation states that stored procedures can be utilized if they contain at most one SQL SELECT statement. In addition, the documentation states that no return parameters can be utilized (parameters declared by SQL keyword OUT, or INOUT). Clearly, complicated data analysis cannot be performed using single SELECT statement. Considering these limitations, I immediately started to investigate options to present a structure using Crystal Reports. At first, I considered a .NET containers, but Crystal Reports engine did not seem to provide any convenient way of displaying such structures. In addition, I noticed that every report that I designed, required the structure of the data to be known at report design time. At that time, two options came to my mind:
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Posted in: .NET | ASP.NET | C# | Crystal Reports

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