public void LoadParts(string sku)
{
try
{
IProductCatalogRepository productCatalogRepository =
SharePointServiceLocator.Current.GetInstance <IProductCatalogRepository>();
IEnumerable <Part> parts = productCatalogRepository.GetPartsByProductSku(sku);
if (parts != null && parts.Any())
{
view.Parts = parts;
}
else
{
// Show an errormessage in the view. Note, we couldn't use the ErrorVisualizer here, because
// the errorVisualizer is outside of the updatepanel. Only things inside the update panel of
// the view will be refreshed when the LoadParts button is clicked.
view.ErrorMessage = Resources.NoPartsFoundError;
}
view.DataBind();
}
catch (Exception ex)
{
// If an unhandled exception occurs in the view, then instruct the ErrorVisualizer to replace
// the view with an errormessage.
ViewExceptionHandler viewExceptionHandler = new ViewExceptionHandler();
viewExceptionHandler.HandleViewException(ex, ErrorVisualizer);
}
}
public void HandlingExceptionIsRobust()
{
MockErrorVisualizerThatThrowsError errorVisualizer = new MockErrorVisualizerThatThrowsError();
var exceptionHandler = new ViewExceptionHandler();
exceptionHandler.HandleViewException(new Exception("OriginalMessage"), errorVisualizer);
}
public void HandleViewException_ThrowsExceptionHandlingException_WhenErrorVisualizaerHasProblems()
{
// Arrange
var errorVisualizer = new MockErrorVisualizerThatThrowsError();
var exceptionHandler = new ViewExceptionHandler();
// Act
exceptionHandler.HandleViewException(new Exception("OriginalMessage"), errorVisualizer);
// Assert - throw
}
public void FindIViewErrorWillREturnNullWhenNoViewErrorIsFound()
{
Control child = new Control();
Control parent = new Control();
Control controlNotToFind = new Control();
controlNotToFind.Controls.Add(parent);
parent.Controls.Add(child);
var foundControl = ViewExceptionHandler.FindErrorVisualizer(child);
Assert.IsNull(foundControl);
}
public void CanFindIViewErrorMessageInParents()
{
Control child = new Control();
Control parent = new Control();
MockErrorVisualizingView controlToFind = new MockErrorVisualizingView();
controlToFind.Controls.Add(parent);
parent.Controls.Add(child);
var foundControl = ViewExceptionHandler.FindErrorVisualizer(child);
Assert.AreSame(controlToFind, foundControl);
}
public void HandleViewExceptionCanSwapMessage()
{
var exceptionHandler = new ViewExceptionHandler();
Exception exception = new Exception("Unhandled exception");
MockErrorVisualizingView mockErrorVisualizingView = new MockErrorVisualizingView();
exceptionHandler.HandleViewException(exception, mockErrorVisualizingView, "Something went wrong");
Assert.AreEqual("Something went wrong", mockErrorVisualizingView.ErrorMessage);
MockLogger logger = SharePointServiceLocator.Current.GetInstance <ILogger>() as MockLogger;
Assert.AreEqual("Unhandled exception", logger.ErrorMessage);
}
public void HandleViewExceptionShouldLogAndShowDefaultExceptionMessage()
{
var exceptionHandler = new ViewExceptionHandler();
Exception exception = new Exception("Unhandled exception");
MockErrorVisualizingView mockErrorVisualizingView = new MockErrorVisualizingView();
exceptionHandler.HandleViewException(exception, mockErrorVisualizingView);
Assert.IsTrue(mockErrorVisualizingView.DefaultErrorMessageShown);
MockLogger logger = SharePointServiceLocator.Current.GetInstance <ILogger>() as MockLogger;
Assert.AreEqual("Unhandled exception", logger.ErrorMessage);
}
public void SetSiteData()
{
try
{
view.SetSiteData = estimatesService.GetSiteData();
}
catch (Exception ex)
{
// If an unhandled exception occurs in the view, then instruct the ErrorVisualizer to replace
// the view with an errormessage.
ViewExceptionHandler viewExceptionHandler = this.ExceptionHandler ?? new ViewExceptionHandler();
viewExceptionHandler.HandleViewException(ex, this.ErrorVisualizer);
}
}
public void SetVendorDataWithTransactionCount()
{
try
{
view.VendorDataWithTransactionCount = VendorService.GetAllVendorsWithTransactionCount();
}
catch (Exception ex)
{
// If an unhandled exception occurs in the view, then instruct the ErrorVisualizer to replace
// the view with an errormessage.
ViewExceptionHandler viewExceptionHandler = this.ExceptionHandler ?? new ViewExceptionHandler();
viewExceptionHandler.HandleViewException(ex, this.ErrorVisualizer);
}
}
public void FindErrorVisualizer_ReturnsNull_WhenNoViewErrorIsFound()
{
// Arrange
var child = new Control();
var parent = new Control();
var controlNotToFind = new Control();
// Act
controlNotToFind.Controls.Add(parent);
parent.Controls.Add(child);
var foundControl = ViewExceptionHandler.FindErrorVisualizer(child);
// Assert
Assert.IsNull(foundControl);
}
public void FindErrorVisualizer_FindsIErrorVisualizerInParents()
{
// Arrange
var child = new Control();
var parent = new Control();
var controlToFind = new MockErrorVisualizingView();
// Act
controlToFind.Controls.Add(parent);
parent.Controls.Add(child);
var foundControl = ViewExceptionHandler.FindErrorVisualizer(child);
// Assert
Assert.AreSame(controlToFind, foundControl);
}
public void HandleViewException_SwapsMessage()
{
// Arrange
var exceptionHandler = new ViewExceptionHandler();
var exception = new Exception("Unhandled exception");
var mockErrorVisualizingView = new MockErrorVisualizingView();
// Act
exceptionHandler.HandleViewException(exception, mockErrorVisualizingView, "Something went wrong");
// Assert
Assert.AreEqual("Something went wrong", mockErrorVisualizingView.ErrorMessage);
MockLogger logger = SharePointServiceLocator.GetCurrent().GetInstance <ILogger>() as MockLogger;
Assert.AreEqual("Unhandled exception", logger.ErrorMessage);
}
public void SetVendorDetails()
{
try
{
AccountsPayableProxyArgs proxyArgs = new AccountsPayableProxyArgs();
proxyArgs.VendorName = vendorName;
string assemblyName = proxyArgs.ProxyOpsAssemblyName;
view.AccountsPayable = vendorService.GetVendorAccountsPayable(proxyArgs, assemblyName);
}
catch (Exception ex)
{
// If an unhandled exception occurs in the view, then instruct the ErrorVisualizer to replace
// the view with an errormessage.
ViewExceptionHandler viewExceptionHandler = new ViewExceptionHandler();
viewExceptionHandler.HandleViewException(ex, this.ErrorVisualizer);
}
}
public void SetVendorDetails()
{
try
{
if (!string.IsNullOrEmpty(vendorId) && int.Parse(vendorId) > 0)
{
view.VendorTransaction = VendorService.GetTransactionByVendor(int.Parse(vendorId));
}
else
{
throw new Exception("Vendor ID Must be Set before access Vendor Details");
}
}
catch (Exception ex)
{
// If an unhandled exception occurs in the view, then instruct the ErrorVisualizer to replace
// the view with an errormessage.
ViewExceptionHandler viewExceptionHandler = new ViewExceptionHandler();
viewExceptionHandler.HandleViewException(ex, this.ErrorVisualizer);
}
}
public void ShowPricing(string productSku)
{
try
{
if (!string.IsNullOrEmpty(productSku))
{
IPricingRepository pricingRepository = SharePointServiceLocator.Current.GetInstance <IPricingRepository>();
Price price = pricingRepository.GetPriceBySku(productSku);
if (price == null)
{
this.PriceText = "There is no price available for this product.";
}
else
{
this.PriceText = price.Value.ToString("C", CultureInfo.CurrentUICulture);
}
}
else
{
PriceText = "The product has not been specified.";
}
this.DataBind();
}
catch (Exception ex)
{
// If an unknown exception occurs we want to:
// 1. Log the error
// 2. Display a friendly (Non technical) error message.
// The ViewExceptionHandler will do that for us:
ViewExceptionHandler viewExceptionHandler = new ViewExceptionHandler();
// In this example, we are looking for an error visualizer up in the tree and using that to display the error.
// Find the error Visualizer (in this case, the one that was added by the PricingWebPart.cs:
IErrorVisualizer errorVisualizer = ViewExceptionHandler.FindErrorVisualizer(this);
// Now log the error and display a friendly error message using the error visualizer.
viewExceptionHandler.HandleViewException(ex, errorVisualizer, string.Format(CultureInfo.CurrentUICulture, "Due to a technical problem, the pricing information for sku '{0}' could not be retrieved. Please try again later.", productSku));
}
}
/// <summary>
/// Create a DiscountPresenter.
/// </summary>
/// <param name="discountsView"></param>
public DiscountsPresenter(IDiscountsView discountsView)
{
this.discountsView = discountsView;
viewExceptionHandler = new ViewExceptionHandler();
}
