/// <summary>
/// Performs update of master page zones given submitted form data.
/// </summary>
/// <param name="form">Form containing updated master page zones data.</param>
/// <returns>Result of form post.</returns>
private FormResult UpdateMasterPageZones(Form form)
{
// Get master page details
string[] parts = form.Context.Split('|');
long tenantId = _authenticationService.TenantId;
long masterPageId = Convert.ToInt64(parts[0]);
List <MasterPageZone> masterPageZones = JsonConvert.DeserializeObject <List <MasterPageZone> >(form.Data);
// Do the update
_masterPageService.UpdateZones(tenantId, masterPageId, masterPageZones);
// Return form result with no errors
return(_formHelperService.GetFormResult());
}