public string InitialLocation {get; set;}

{
  // Variables not used in samples
  OpenItemDialog selectItemDialog = new(); // in #region BrowseDialogItems

  // Adds a single item to a map
  OpenItemDialog addToMapDialog = new()
  {
    Title = "Add To Map",
    InitialLocation = @"C:\Data\NewYork\Counties\Erie\Streets",
    Filter = ItemFilters.Composite_AddToMap
  };
}

{
  SaveItemDialog saveLayerFileDialog = new()
  {
    Title = "Save Layer File",
    InitialLocation = @"C:\Data\ProLayers\Geographic\Streets",
    Filter = ItemFilters.Files_All
  };
}