Category: Software Engineering

Hmm. Talk about over-engineering. I don’t think we really need generics at all, provided we’re happy with a cast outside the method instead of inside it.

public delegate object MethodExecution();public static object GetCachedMethod(string key, DateTime absoluteExpiration, MethodExecution method){    if (HttpContext.Current.Cache[key] == null)        HttpContext.Current.Cache.Insert(key,            method(),            null, absoluteExpiration, Cache.NoSlidingExpiration);

    return HttpContext.Current.Cache[key];    }...return (DataSet)GetCachedMethod(key, DateTime.Now.AddDays(1),                delegate() { return SomeMethodThatReturnsADataSet(myParam); });… Read more “Caching Method Results in ASP.NET 2.0 using Delegates”

Today I found myself coding a fairly familiar pattern – checking whether there was an entry in the ASP.NET cache with a particular key, if not, executing a method and adding the result to the cache, and either way, returning the result.

I wondered whether there was a “nice” way to do this using generics and anonymous delegates. This is … Read more “Caching Method Results in ASP.NET 2.0 using Generics & Delegates”

Want to dynamically load your two-way data bound templates rather than having to specify them inline? Well, unfortunately there’s no LoadBindableTemplate method in ASP.NET 2.0, but I’ve described a possible workaround at http://www.developerfusion.co.uk/show/4721/.

I also demonstrate how you can use this to load one portion of a two-way data bound template from one file (ie a common set of input … Read more “Dynamically loading an IBindableTemplate”

I hit a strange problem today when I started getting the ASP.NET 404 error page whenever I tried to access my ASP.NET pages through IIS – whilst any non-ASP.NET pages in the same directory worked fine. After a bit of digging, it turned out that this was caused by me fiddling with the site’s “home directory” in IIS – I’d … Read more “ASP.NET “Page Not Found” when pages exist…”

Update: See http://weblogs.asp.net/james_crowley/archive/2005/09/06/424539.aspx

Just found out that ASP.NET 2.0 doesn’t support dynamically loading “bindable” templates from a file; you’re restricted to writing them inline. In other words, if you’re using a FormView or DetailView control, and plan to use the new two-way data binding features, any use of LoadTemplate is out of the window. Plus the BindableTemplateBuilder (for creating a … Read more “Dynamically loading ASP.NET 2.0 “Bindable” templates”