Contents tagged with ASP.NET
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Hacking the ASP.NET Parser
A while ago I blogged about using external templates in an asp.net application. The problem with that was it wasn’t natively supported, so I had to create a derived SpecialRepeater in order to take advantage of the external template system.
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More Data Binding
Last time I tried to solve one of the deficiencies of data binding by taking advantage of expando attributes. Today I want to throw an idea out there that I’ve been playing with since that blog post.I was looking at WPF’s data binding and wondered what it would take to have data binding in ASP.NET be as first class as data binding in WPF.
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Databinding 3.0
There was a post on our internal discussion group recently where a customer pointed out one of the weaknesses of 2 way data binding not working within user controls. Consider the following page:
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My first channel 9 video!
Wow, I haven't blogged in a while...but that will end soon. Watch me talk about the QueryExtender control. It's a new control we added in ASP.NET 4.0 to make Linq queries even simpler. The new control works with LinqDataSource and EntityDataSource. We also built all of the new DynamicData filters on top of this new control.
Check it out here -
Invalid postback or callback argument
I'm sure many of you have seen this error message when developing your web application:
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A new way to DataBind()
The Problem
I've been thinking alot recently about the problems with data binding (and they're alot). There are some patterns that play well with ASP.NET (and are repeated everywhere) and some that don't quite fit the model. One of those patterns that don't mesh well is, setting the DataSource property of any of the DataControls. Before ASP.NET 2.0 and DataSource controls we'd have to set the DataSource property and manually call DataBind. -
Client side devevelopment in ASP.NET
We ASP.NET developers know how much of a pain it is writing javascript in any app we have today because of naming container madness! You've probably done something like this:
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Follow me on twitter!
I've finally got sucked into twitter after avoiding it for many months. Check me out:
http://twitter.com/davidfowl/ -
AutoFieldGenerators
In 3.5 SP1 we added new properties to GridView and DetailsView which allows the page developer to change the way AutoGenerateColumns creates its columns. This feature is well know in Dynamic Data, but it is not tied to this technology. Dynamic Data takes advantage of this by looking at the meta data that users set on properties to generate columns.
You too can roll your own IAutoFieldGenerator. Lets look at the interface: -
How <%# Bind %> Works
In my last post I spoke about 2-way databinding and how it can be used to extract values from control properties. How does this all work? Lets take a look at a page with 2-way databinding: