Currently dialogs provide only custom places pane.
Add auto-populated built-in section with well-known quick access like in the MS file dialogs.
Expose an event that allows you to cancel the navigation to a folder. For example, if you enter an address in the breadcrumb, click the back button, or select a directory in the navigation tree, then you should be able to cancel the navigation.
This can be done via a new event that have a Cancel property in its arguments, for example.
The naming shown here is not mandatory.
Using RadOpenFileDialog reports a lot of binding errors. #26 seems to happen all the time, whereas #40 is related to the length of the initial directory.
The dialog is working, but those errors are really disturbing. The more false binding errors we get, the higher the possibility is that we miss real errors. Suppressing them by setting the error level to Critical is not a solution, as it will suppress real errors as well.
System.Windows.Data Error: 26 : ItemTemplate and ItemTemplateSelector are ignored for items already of the ItemsControl's container type; Type='RadWatermarkTextBox'
System.Windows.Data Warning: 40 : BindingExpression path error: 'IsHidden' property not found on 'object' ''OpenFileDialogViewModel' (HashCode=39129256)'. BindingExpression:Path=IsHidden; DataItem='OpenFileDialogViewModel' (HashCode=39129256); target element is 'RadBreadcrumbBarItem' (Name=''); target property is 'Visibility' (type 'Visibility')
System.Windows.Data Warning: 40 : BindingExpression path error: 'IsSystemHiddenActual' property not found on 'object' ''OpenFileDialogViewModel' (HashCode=39129256)'. BindingExpression:Path=IsSystemHiddenActual; DataItem='OpenFileDialogViewModel' (HashCode=39129256); target element is 'RadBreadcrumbBarItem' (Name=''); target property is 'Visibility' (type 'Visibility')
System.Windows.Data Warning: 40 : BindingExpression path error: 'IsHidden' property not found on 'object' ''OpenFileDialogViewModel' (HashCode=39129256)'. BindingExpression:Path=IsHidden; DataItem='OpenFileDialogViewModel' (HashCode=39129256); target element is 'RadBreadcrumbBarItem' (Name=''); target property is 'Visibility' (type 'Visibility')
System.Windows.Data Warning: 40 : BindingExpression path error: 'IsSystemHiddenActual' property not found on 'object' ''OpenFileDialogViewModel' (HashCode=39129256)'. BindingExpression:Path=IsSystemHiddenActual; DataItem='OpenFileDialogViewModel' (HashCode=39129256); target element is 'RadBreadcrumbBarItem' (Name=''); target property is 'Visibility' (type 'Visibility')
System.Windows.Data Error: 26 : ItemTemplate and ItemTemplateSelector are ignored for items already of the ItemsControl's container type; Type='RadBreadcrumbBarItem'
The error message appears after you do several operations with the dialog and then call the Directory.Move() method. The message is "Access to the path <path> is denied".