Question

How do I bind the datagrid visibility using MVVM so that if there is no data, set the visibility of the DataGrid to Collapsed, in such a way that the code could be reusable.
Thanks.

Answer 1

In ViewModel expose property like

// In setter consider INotifyPropertyChanged 
public bool IsDataAvailable
{
  get; set;
}

In XAML:

<DataGrid Visibility="{Binding IsDataAvailable, 
                      Converter={StaticResource BooleanToVisibilityConverter}}" />

Some useful links:

• How to declare and use BooleanToVisibilityConverter in my View
• Good examples of the BooleanToVisibilityConverter implementation
• WPF MVVM INotifyPropertyChanged Implementation – Model or ViewModel