Don`t forget to use DataGrid.Columns, all columns must be inside that collection. In my project I format date a little bit differently: <tk:DataGrid> <tk:DataGrid.Columns> <tk:DataGridTextColumn Binding=”{Binding StartDate, StringFormat=\{0:dd.MM.yy HH:mm:ss\}}” /> </tk:DataGrid.Columns> </tk:DataGrid> With AutoGenerateColumns you won`t be able to contol formatting as DataGird will add its own columns.
If you try to set the DataGrid.CellStyle the DataContext will be the row, so if you want to change the colour based on one cell it might be easiest to do so in specific columns, especially since columns can have varying contents, like TextBlocks, ComboBoxes and CheckBoxes. Here is an example of setting all the … Read more
You can use the SelectedItem property to get the currently selected object, which you can then cast into the correct type. For instance, if your DataGrid is bound to a collection of Customer objects you could do this: Customer customer = (Customer)myDataGrid.SelectedItem; Alternatively you can bind SelectedItem to your source class or ViewModel. <Grid DataContext=”MyViewModel”> … Read more
To programatically add a row: DataGrid.Items.Add(new DataItem()); To programatically add a column: DataGridTextColumn textColumn = new DataGridTextColumn(); textColumn.Header = “First Name”; textColumn.Binding = new Binding(“FirstName”); dataGrid.Columns.Add(textColumn); Check out this post on the WPF DataGrid discussion board for more information.
We are using .NET 4.0. We had the same problem, but after logging off the system, code used to work fine for some time. Finally we found the alternative. If you want to copy a string to the clipboard, string data = “Copy This” Till now I was using the following method Clipboard.SetText(data); It was … Read more
First of all, DataGridTextColumn (or any other supported dataGrid column) does not lie in the Visual tree of the DataGrid. Hence, by default it doesn’t inherit the DataContext of the DataGrid. However, it works for Binding DP only and for no other DP’s on DataGridColumn. Since they don’t lie in the same VisualTree, any attempt … Read more
Sadly any DataGridColumn hosted under DataGrid.Columns is not part of Visual tree and therefore not connected to the data context of the datagrid. So bindings do not work with their properties such as Visibility or Header etc (although these properties are valid dependency properties!). Now you may wonder how is that possible? Isn’t their Binding … Read more
Basically your button will inherit the datacontext of a row data object. I am calling it as MyObject and hope MyObject.ID is what you wanted. private void Button_Click(object sender, RoutedEventArgs e) { MyObject obj = ((FrameworkElement)sender).DataContext as MyObject; //Do whatever you wanted to do with MyObject.ID }
You can use Dispatcher.Invoke(Delegate, object[]) on the Application‘s (or any UIElement‘s) dispatcher. You can use it for example like this: Application.Current.Dispatcher.Invoke(new Action(() => { /* Your code here */ })); or someControl.Dispatcher.Invoke(new Action(() => { /* Your code here */ }));
Here’s a workaround for Binding Columns in the DataGrid. Since the Columns property is ReadOnly, like everyone noticed, I made an Attached Property called BindableColumns which updates the Columns in the DataGrid everytime the collection changes through the CollectionChanged event. If we have this Collection of DataGridColumn’s public ObservableCollection<DataGridColumn> ColumnCollection { get; private set; } … Read more