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Editorial Team
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Asked: 2026-05-25T11:52:47+00:00

I have used data binding in my project in earlier version of WPF. I

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I have used data binding in my project in earlier version of WPF. I have used DataGrid from wpf toolkit and used DataGridTextColumn and DataGridTemplateColumn with DatePicker and ComboBox inside it to update particular cell’s value. I have bound it with a business object that implements INotifyPropertyChanged interface. Earlier this was working fine but recently we moved to WPF 4.0 and this functionality is not working. I am getting error message “Two-way binding requires Path or XPath.” and fields of my business objects are also not getting updated. Is there any change in Data Binding in WPF 4.0? Please help!!

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1 Answer

  1. Editorial Team

    There are no (significant) changes to how Data Binding works in .NET 4 vs. .NET 3.5. However, if you’re using the Framework’s DataGrid class instead of the WPF Toolkit’s DataGrid, there are changes in that control itself.

    I suspect this is due to a problem in how you were implementing that control originally. You should be specifying a Binding using {Binding} and not {Binding Path=Something}, which isn’t likely to be exactly what you intended, at least not without a data template in place for the object in question.

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