private void UpdateErrorInfo()
{
AddInDefinition addInDefinition = (AddInDefinition)addinsListView.FocusedItem.Tag;
if (addInDefinition.HasErrors)
{
errorsTextBox.Text = addInDefinition.Error;
}
else
{
errorsTextBox.Text = String.Format("The add-in '{0}' loaded successfully.", addInDefinition.Instance.Name);
}
}
public static ItemDefinition FromAddInDefinition(AddInDefinition addInDefinition)
{
return(new ItemDefinition(null, addInDefinition));
}
private static List <AddInDefinition> LoadAddInDefinitions()
{
string addInPath = GetAddInDirectory();
if (!Directory.Exists(addInPath))
{
return(new List <AddInDefinition>());
}
string[] addinAssemblyFilenames = Directory.GetFiles(addInPath, "*.addin", SearchOption.AllDirectories);
List <AddInDefinition> result = new List <AddInDefinition>();
List <Type> addInTypes = new List <Type>();
foreach (string addinAssemblyFilename in addinAssemblyFilenames)
{
Assembly addInAssembly = Assembly.LoadFrom(addinAssemblyFilename);
Type[] exportedTypes = addInAssembly.GetExportedTypes();
foreach (Type exportedType in exportedTypes)
{
if (!exportedType.IsAbstract && !exportedType.IsInterface)
{
Type[] interfaces = exportedType.GetInterfaces();
bool implementsIAddIn = Array.IndexOf(interfaces, typeof(IAddIn)) >= 0;
if (implementsIAddIn)
{
ConstructorInfo defaultConstructor = exportedType.GetConstructor(new Type[0]);
if (defaultConstructor != null)
{
addInTypes.Add(exportedType);
}
else
{
string error = String.Format("Add-in type '{0}' does not provide a public default constructor.", exportedType.FullName);
AddInDefinition addInDefinition = new AddInDefinition(exportedType, null, error);
result.Add(addInDefinition);
}
}
}
}
}
foreach (Type addInType in addInTypes)
{
AddInDefinition addInDefinition;
try
{
IAddIn addIn = (IAddIn)Activator.CreateInstance(addInType);
addInDefinition = new AddInDefinition(addInType, addIn, null);
}
catch (Exception ex)
{
string error = String.Format("Cannot create instance of add-in type '{0}': {1}", addInType.FullName, ex);
addInDefinition = new AddInDefinition(addInType, null, error);
}
result.Add(addInDefinition);
}
return(result);
}
private ItemDefinition(string dataSetPath, AddInDefinition addInDefinition)
{
_dataSetPath = dataSetPath;
_addInDefinition = addInDefinition;
}
