// Display details of the exception.
// We are doing this here to help you, as a developer, understand exactly
// what exception was received. In a real app, you would
// handle exceptions within your code and give a more user-friendly behavior.
internal static void DisplayException(MissingConfigurationValueException exception) {
var title = "Connected Services configuration failure";
StringBuilder content = new StringBuilder();
content.AppendLine("We were unable to connect to Office 365. Here's the exception we received:");
content.AppendFormat("Exception: {0}\n\n", exception.Message);
content.AppendLine("Suggestion: Make sure you have added the Connected Services to this project as outlined in the Readme file.");
MessageDialogHelper.ShowDialogAsync(content.ToString(), title);
}
// Display details of the exception.
// We are doing this here to help you, as a developer, understand exactly
// what exception was received. In a real app, you would
// handle exceptions within your code and give a more user-friendly behavior.
internal static void DisplayException(MissingConfigurationValueException exception)
{
var title = "Connected Services configuration failure";
StringBuilder content = new StringBuilder();
content.AppendLine("We were unable to connect to Office 365. Here's the exception we received:");
content.AppendFormat("Exception: {0}\n\n", exception.Message);
content.AppendLine("Suggestion: Make sure you have added the Connected Services to this project as outlined in the Readme file.");
MessageDialogHelper.ShowDialogAsync(content.ToString(), title);
}
/// <summary>
/// Checks that an access token is available.
/// This method requires that the ServiceResourceId has been set previously.
/// </summary>
/// <returns>The access token.</returns>
internal static async Task <string> EnsureAccessTokenAvailableAsync()
{
if (!String.IsNullOrEmpty(ServiceResourceId))
{
return(await EnsureAccessTokenAvailableAsync(ServiceResourceId));
}
else
{
MissingConfigurationValueException mcve =
new MissingConfigurationValueException(
"To use this method you have to call EnsureAccessTokenAvailableAsync(string serviceResourceId) at least once."
);
MessageDialogHelper.DisplayException(mcve);
return(null);
}
}
/// <summary>
/// Checks that an access token is available.
/// This method requires that the ServiceResourceId has been set previously.
/// </summary>
/// <returns>The access token.</returns>
internal static async Task<string> EnsureAccessTokenAvailableAsync()
{
if(!String.IsNullOrEmpty(ServiceResourceId))
{
return await EnsureAccessTokenAvailableAsync(ServiceResourceId);
}
else
{
MissingConfigurationValueException mcve =
new MissingConfigurationValueException(
"To use this method you have to call EnsureAccessTokenAvailableAsync(string serviceResourceId) at least once."
);
MessageDialogHelper.DisplayException(mcve);
return null;
}
}
