Troubleshooting WPF / Silverlight XAML databinding?

Question

Whenever I am doing XAML, I tend to run into problems with databinding. It is often small issues, such as misspelling a property name.

My problem is, that I don't seem to receive any errors or warnings when I am trying to bind to a property that does not exist. It would be nice to get a warning, either at compile or runtime, about my errors.

Is it possible to get a warning about wrong databinding expressions ? What do you do to troubleshoot when your data does not appear as expected ?

possible duplicate of [How to detect broken WPF Data binding?](http://stackoverflow.com/questions/337023/how-to-detect-broken-wpf-data-binding) — Gishu, Oct 09 '10 at 18:00

score 3 · Accepted Answer · answered Oct 10 '10 at 08:58

3

WPF will write warnings about problems in data binding to the Visual Studio "Output" window

answered Oct 10 '10 at 08:58

Nir

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You are very right. Many people dont use that "Output" window at all. Its the best source of information to find out if anything has gone wrong!! Cheers !! – Gurucharan Balakuntla Maheshku Oct 11 '10 at 18:29
The Output window doesn't appear write a warning if something on the binding path is null. That was my actual problem. – driis Oct 30 '10 at 17:30

score 1 · Answer 2 · answered Oct 30 '10 at 17:33

1

This blog post, How can I debug WPF bindings? helped me learn why my Binding was failing.

I've accepted the other answer to this question because it is technically correct, but I wanted to include the link above in this question, for future reference.

answered Oct 30 '10 at 17:33

driis

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Troubleshooting WPF / Silverlight XAML databinding?

2 Answers2