/// <summary>
/// Extends GetEditor so that methods that return a specific type object given a Type parameter can be
/// used as generic method and casting is not required.
/// <example>
/// icomnativedescriptorhandler.GetEditor<int>(component);
/// </example>
/// </summary>
public static T GetEditor <T>(this IComNativeDescriptorHandler icomnativedescriptorhandler, Object component)
{
if (icomnativedescriptorhandler == null)
{
throw new ArgumentNullException("icomnativedescriptorhandler");
}
return((T)icomnativedescriptorhandler.GetEditor(component, typeof(T)));
}
#pragma warning disable CS0618 // 'IComNativeDescriptorHandler' is obsolete: 'This interface has been deprecated. Add a TypeDescriptionProvider to handle type TypeDescriptor.ComObjectType instead. http://go.microsoft.com/fwlink/?linkid=14202'
/// <summary>
/// Extends GetEditor so that methods that return a specific type object given a Type parameter can be
/// used as generic method and casting is not required.
/// <example>
/// icomnativedescriptorhandler.GetEditor<int>(component);
/// </example>
/// </summary>
public static T GetEditor <T>(this IComNativeDescriptorHandler icomnativedescriptorhandler, Object component)
#pragma warning restore CS0618 // 'IComNativeDescriptorHandler' is obsolete: 'This interface has been deprecated. Add a TypeDescriptionProvider to handle type TypeDescriptor.ComObjectType instead. http://go.microsoft.com/fwlink/?linkid=14202'
{
if (icomnativedescriptorhandler == null)
{
throw new ArgumentNullException("icomnativedescriptorhandler");
}
return((T)icomnativedescriptorhandler.GetEditor(component, typeof(T)));
}
private static string GetCatID(object component)
{
// 1 : handle intrinsic extensions
string catID = null;
if (Marshal.IsComObject(component))
{
bool success = false;
Type descriptorType = Type.GetType("System.Windows.Forms.ComponentModel.Com2Interop.ComNativeDescriptor, " + AssemblyRef.SystemWindowsForms);
Debug.Assert(descriptorType != null, "No comnative descriptor; we can't get native property values");
if (descriptorType != null)
{
PropertyInfo info = descriptorType.GetProperty("Instance");
Debug.Assert(info != null, "Property Instance does not exist on com native descriptor");
if (info != null)
{
IComNativeDescriptorHandler handler = (IComNativeDescriptorHandler)info.GetValue(null, null);
catID = (string)handler.GetPropertyValue(component, extenderPropName, ref success);
}
}
}
else
{
PropertyInfo propCatID = component.GetType().GetProperty(extenderPropName);
if (propCatID != null)
{
object[] tempIndex = null;
catID = (string)propCatID.GetValue(component, tempIndex);
}
}
if (catID != null && catID.Length > 0)
{
try {
// is this a vaild catID string?
Guid g = new Guid(catID);
}
catch (Exception) {
Debug.Fail("'" + catID + "' is not a valid CatID (GUID) string");
catID = null;
}
}
else
{
catID = null;
}
return(catID);
}
/// <devdoc>
/// Creates a new ComNativeTypeDescriptor.
/// </devdoc>
internal ComNativeTypeDescriptor(IComNativeDescriptorHandler handler, object instance)
{
_handler = handler;
_instance = instance;
}
internal ComNativeDescriptionProvider(IComNativeDescriptorHandler handler)
{
_handler = handler;
}
