Get selected row item in DataGrid WPF

Question

Hi, I have a DataGrid, binded to Database table, I need to get content of selected row in DataGrid, for example, I want to show in MessageBox content of selected row.

Example of DataGrid:

ID Name Domain

464 Alex Math

646 Jim Biology

So if I select second row, my MessageBox has to show something like: «646 Jim Biology».

Thanks.

Answer 1

If you're using the MVVM pattern you can bind a SelectedRecord property of your VM with SelectedItem of the datagrid, this way you always have the selectedvalue in you VM. Otherwise you should use the SelectedIndex property of the datagrid.

Answer 2

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="MyDataContext">
    <DataGrid ItemsSource="{Binding Path=Customers}"
              SelectedItem="{Binding Path=SelectedCustomer, Mode=TwoWay}"/>
</Grid>