Berichten tagged WPF

TwitCast

17 Mar

Gepost door Sander in .Net

What started it

Are you using Twitter? Do you like it or absolutely loathe it? I do like it but one thing I don’t like is constantly checking twitter.com to see if someone tweeted something interesting. So a new idea was born and the wasting of time began.

The idea

Actually it’s pretty simple, I wanted an application that showed a pop-up of some kind that shows me the latest tweet for a minute or so and then disappear, similar to the new e-mail popup of Outlook. Another feature I wanted to make is that when I mouse over on the Meer >

, , ,

Binding a WPF DataGridColumn to a LINQ result

26 Aug

Gepost door Sander in .Net

I’ve been tinkering with Visual Studio 2010 Beta1 and the .Net 4 framework. One of the things that I’ve tried is filling a DataGrid with the results of a LINQ query. Consider the following code: C#

var voyages = from voyage in entities.Voyage
              select new { Number = voyage.Number, ETA = voyage.StartTime };

dataGridTest.ItemsSource = voyages;

XAML

<DataGrid Name="dataGridTest">
    <DataGrid.Columns>
        <DataGridTextColumn Header="Number" Binding="{Binding Path=Number}" />
        <DataGridTextColumn Header="ETA" Binding="{Binding Path=ETA}" />
    </DataGrid.Columns>
</DataGrid>

Seems straightforward enough, doesn’t it? Well it does but when you try to run it, it’ll crash and burn with the following exception:

InvalidOperationException: A TwoWay or OneWayToSource binding cannot Meer >

, ,