public void SetUpFixture()
{
using (DesignSurface designSurface = new DesignSurface(typeof(Form))) {
IDesignerHost host = (IDesignerHost)designSurface.GetService(typeof(IDesignerHost));
IEventBindingService eventBindingService = new MockEventBindingService(host);
host.AddService(typeof(IEventBindingService), eventBindingService);
Form form = (Form)host.RootComponent;
form.ClientSize = new Size(200, 300);
PropertyDescriptorCollection descriptors = TypeDescriptor.GetProperties(form);
PropertyDescriptor namePropertyDescriptor = descriptors.Find("Name", false);
namePropertyDescriptor.SetValue(form, "MainForm");
// Simulate giving a name to the Load event handler in the property grid.
EventDescriptorCollection events = TypeDescriptor.GetEvents(form);
EventDescriptor loadEvent = events.Find("Load", false);
PropertyDescriptor loadEventProperty = eventBindingService.GetEventProperty(loadEvent);
loadEventProperty.SetValue(form, "MainFormLoad");
// Add a second event handler method.
EventDescriptor closedEvent = events.Find("FormClosed", false);
PropertyDescriptor closedEventProperty = eventBindingService.GetEventProperty(closedEvent);
closedEventProperty.SetValue(form, "MainFormClosed");
DesignerSerializationManager serializationManager = new DesignerSerializationManager(host);
using (serializationManager.CreateSession()) {
PythonCodeDomSerializer serializer = new PythonCodeDomSerializer(" ");
generatedPythonCode = serializer.GenerateInitializeComponentMethodBody(host, serializationManager, String.Empty, 1);
}
}
}
public void Find_Key_Null()
{
EventDescriptorCollection descriptors = new EventDescriptorCollection(
new EventDescriptor[] { new MockEventDescriptor("A", "X"),
new MockEventDescriptor("b", "Y") });
Assert.IsNull(descriptors.Find(null, false), "#1");
Assert.IsNull(descriptors.Find(null, true), "#2");
}
// <Snippet1>
private void FindEvent()
{
// Creates a new collection and assigns it the events for button1.
EventDescriptorCollection events = TypeDescriptor.GetEvents(button1);
// Sets an EventDescriptor to the specific event.
EventDescriptor myEvent = events.Find("Resize", false);
// Prints the event name and event description.
textBox1.Text = myEvent.Name + ": " + myEvent.Description;
}
public void SetUpFixture()
{
using (DesignSurface designSurface = new DesignSurface(typeof(Form))) {
IDesignerHost host = (IDesignerHost)designSurface.GetService(typeof(IDesignerHost));
IEventBindingService eventBindingService = new MockEventBindingService(host);
host.AddService(typeof(IEventBindingService), eventBindingService);
Form form = (Form)host.RootComponent;
form.ClientSize = new Size(284, 264);
PropertyDescriptorCollection descriptors = TypeDescriptor.GetProperties(form);
PropertyDescriptor namePropertyDescriptor = descriptors.Find("Name", false);
namePropertyDescriptor.SetValue(form, "MainForm");
Panel panel = (Panel)host.CreateComponent(typeof(Panel), "panel1");
panel.Location = new Point(10, 15);
panel.Anchor = AnchorStyles.Bottom | AnchorStyles.Top | AnchorStyles.Left | AnchorStyles.Right;
panel.TabIndex = 0;
panel.Size = new Size(100, 120);
TextBox textBox = (TextBox)host.CreateComponent(typeof(TextBox), "textBox1");
textBox.Location = new Point(5, 5);
textBox.TabIndex = 0;
textBox.Size = new Size(110, 20);
panel.Controls.Add(textBox);
// Add an event handler to the panel to check that this code is generated
// before the text box is initialized.
EventDescriptorCollection events = TypeDescriptor.GetEvents(panel);
EventDescriptor clickEvent = events.Find("Click", false);
PropertyDescriptor clickEventProperty = eventBindingService.GetEventProperty(clickEvent);
clickEventProperty.SetValue(panel, "Panel1Click");
form.Controls.Add(panel);
DesignerSerializationManager serializationManager = new DesignerSerializationManager(host);
using (serializationManager.CreateSession()) {
RubyCodeDomSerializer serializer = new RubyCodeDomSerializer(" ");
generatedRubyCode = serializer.GenerateInitializeComponentMethodBody(host, serializationManager, 1);
}
}
}
EventDescriptorCollection ITypeDescriptionProvider.GetEvents()
{
EventDescriptorCollection col1 = Provider.GetEvents();
EventDescriptorCollection col2 = BaseTypeDescriptor.GetEvents();
EventDescriptorCollection col = new EventDescriptorCollection(new EventDescriptor[0]);
foreach (EventDescriptor ed in col1)
{
col.Add(ed);
}
foreach (EventDescriptor ed in col2)
{
if (col.Find(ed.Name, false) == null)
{
col.Add(ed);
}
}
return(col);
}
public ServerObjectParsingObject(Type type, Hashtable attributes, string tagid, ParsingObject parent)
: base(tagid, parent)
{
//create the object
if (type.GetInterface("System.ComponentModel.IComponent") != null)
{
//note: this automatically adds to parent's container, as some controls
//need to be sited e.g. if they use site dictionaries
//TODO: should this action be passed up the tree so controls can intercept?
obj = ((AspNetEdit.Editor.ComponentModel.DesignerHost)base.DesignerHost).CreateComponent(type, attributes["ID"] as string, false);
}
else
{
obj = Activator.CreateInstance(type);
}
//and populate it from the attributes
pdc = TypeDescriptor.GetProperties(obj);
foreach (DictionaryEntry de in attributes)
{
if (0 == string.Compare((string)de.Key, "runat"))
{
continue;
}
if (0 == string.Compare((string)de.Key, "ID"))
{
continue;
}
//use the dash subproperty syntax
string[] str = ((string)de.Key).Split('-');
PropertyDescriptor pd = pdc.Find(str[0], true);
//if property not found, try events
if (str.Length == 1 && pd == null && CultureInfo.InvariantCulture.CompareInfo.IsPrefix(str[0].ToLower(), "on"))
{
IEventBindingService iebs = (IEventBindingService)DesignerHost.GetService(typeof(IEventBindingService));
if (iebs == null)
{
throw new Exception("Could not obtain IEventBindingService from host");
}
EventDescriptorCollection edc = TypeDescriptor.GetEvents(obj);
EventDescriptor e = edc.Find(str[0].Remove(0, 2), true);
if (e != null)
{
pd = iebs.GetEventProperty(e);
}
else
{
throw new Exception("Could not find event " + str[0].Remove(0, 2));
}
}
object loopObj = obj;
for (int i = 0; i < str.Length; i++)
{
if (pd == null)
{
throw new Exception("Could not find property " + (string)de.Key);
}
if (i == str.Length - 1)
{
pd.SetValue(obj, pd.Converter.ConvertFromString((string)de.Value));
break;
}
loopObj = pd.GetValue(loopObj);
pd = TypeDescriptor.GetProperties(loopObj).Find(str[0], true);
}
}
parseAtt = TypeDescriptor.GetAttributes(obj)[typeof(ParseChildrenAttribute)] as ParseChildrenAttribute;
//FIXME: fix this in MCS classlib
if (parseAtt.DefaultProperty.Length == 0)
{
parseAtt = null;
}
//work out how we're trying to parse the children
if (parseAtt != null)
{
if (parseAtt.DefaultProperty != null)
{
PropertyDescriptor pd = pdc[parseAtt.DefaultProperty];
if (pd == null)
{
throw new Exception("Default property does not exist");
}
if (pd.PropertyType.GetInterface("System.Collections.IList") == (typeof(IList)))
{
mode = ParseChildrenMode.DefaultCollectionProperty;
}
else
{
mode = ParseChildrenMode.DefaultProperty;
}
}
else if (parseAtt.ChildrenAsProperties)
{
mode = ParseChildrenMode.Properties;
}
else
{
mode = ParseChildrenMode.Controls;
}
}
else
{
//FIXME: these are actually persistence hints, but ParseChildrenAttribute doesn't always exist.
//FIXME: logic would be dodgy with bad input
parseAtt = ParseChildrenAttribute.Default;
mode = ParseChildrenMode.Controls;
foreach (PropertyDescriptor pd in pdc)
{
PersistenceModeAttribute modeAttrib = pd.Attributes[typeof(PersistenceModeAttribute)] as PersistenceModeAttribute;
if (modeAttrib == null)
{
return;
}
switch (modeAttrib.Mode)
{
case PersistenceMode.Attribute:
continue;
case PersistenceMode.EncodedInnerDefaultProperty:
parseAtt.DefaultProperty = pd.Name;
mode = ParseChildrenMode.DefaultEncodedProperty;
break;
case PersistenceMode.InnerDefaultProperty:
parseAtt.DefaultProperty = pd.Name;
if (pd.PropertyType.GetInterface("System.Collections.IList") == (typeof(IList)))
{
mode = ParseChildrenMode.DefaultCollectionProperty;
}
else
{
mode = ParseChildrenMode.DefaultProperty;
}
break;
case PersistenceMode.InnerProperty:
mode = ParseChildrenMode.Properties;
break;
}
}
}
}
public void Find()
{
EventDescriptor descA = new MockEventDescriptor("hehe_\u0061\u030a", null);
EventDescriptor descB = new MockEventDescriptor("heh_\u00e5", null);
EventDescriptor descC = new MockEventDescriptor("Foo", null);
EventDescriptor descD = new MockEventDescriptor("FOo", null);
EventDescriptor descE = new MockEventDescriptor("Aim", null);
EventDescriptor descF = new MockEventDescriptor("Bar", null);
EventDescriptorCollection col = new EventDescriptorCollection(
new EventDescriptor [] { descA, descB, descC, descD, descE, descF });
Assert.IsNull(col.Find("heh_\u0061\u030a", false), "#1");
Assert.IsNull(col.Find("hehe_\u00e5", false), "#2");
Assert.AreSame(descA, col.Find("hehe_\u0061\u030a", false), "#3");
Assert.AreSame(descB, col.Find("heh_\u00e5", false), "#4");
Assert.IsNull(col.Find("foo", false), "#5");
Assert.AreSame(descC, col.Find("foo", true), "#6");
Assert.AreSame(descD, col.Find("FOo", false), "#7");
Assert.AreSame(descC, col.Find("FOo", true), "#8");
Assert.IsNull(col.Find("fOo", false), "#9");
Assert.AreSame(descC, col.Find("fOo", true), "#10");
Assert.IsNull(col.Find("AIm", false), "#11");
Assert.AreSame(descE, col.Find("AIm", true), "#12");
Assert.IsNull(col.Find("AiM", false), "#13");
Assert.AreSame(descE, col.Find("AiM", true), "#14");
Assert.AreSame(descE, col.Find("Aim", false), "#15");
Assert.AreSame(descE, col.Find("Aim", true), "#16");
}
private void AddPropertyInternal(string name, string value,
ControlBuilder builder, bool fItemProp)
{
PropertySetterEntry entry = new PropertySetterEntry();
bool fTemplate = false;
string nameForCodeGen = null;
entry._value = value;
entry._builder = builder;
entry._fItemProp = fItemProp;
MemberInfo memberInfo = null;
PropertyInfo propInfo = null;
FieldInfo fieldInfo = null;
// Is the property a template?
if (builder != null && builder is TemplateBuilder)
{
fTemplate = true;
}
if (_objType != null && name != null) // attempt to locate a public property or field
// of given name on this type of object
{
memberInfo = PropertyMapper.GetMemberInfo(_objType, name, out nameForCodeGen);
}
if (memberInfo != null) // memberInfo may be a PropertyInfo or FieldInfo
{
if (memberInfo is PropertyInfo) // public property
{
propInfo = (PropertyInfo)memberInfo;
entry._propType = propInfo.PropertyType;
if (propInfo.GetSetMethod() == null) // property is readonly
{
if (builder == null && !_fSupportsAttributes) // only complex property is allowed to be readonly
{
throw new HttpException(
HttpRuntime.FormatResourceString(SR.Property_readonly, name));
}
if (builder != null) // complex property is allowed to be readonly
// set a flag to note that property is readonly
{
entry._fReadOnlyProp = true;
}
else if (_fSupportsAttributes) // allow attribute to be set via SetAttribute
{
entry._propType = null;
entry._name = name;
}
}
}
else // public field
{
fieldInfo = (FieldInfo)memberInfo;
entry._propType = fieldInfo.FieldType;
}
if (entry._propType != null)
{
entry._propInfo = propInfo;
entry._fieldInfo = fieldInfo;
entry._name = nameForCodeGen;
// If it's a databound prop, we don't want to mess with the value,
// since it's a piece of code.
if (!_fDataBound)
{
// check that the property is persistable, i.e., it makes sense to have it in
// the aspx template
if (_checkPersistable && nameForCodeGen != null)
{
PropertyDescriptor propDesc = _descriptors[nameForCodeGen];
if (propDesc != null)
{
if (propDesc.Attributes.Contains(DesignerSerializationVisibilityAttribute.Hidden))
{
throw new HttpException(HttpRuntime.FormatResourceString(SR.Property_Not_Persistable, name));
}
}
}
else
{
if (_isHtmlControl)
{
PropertyDescriptor propDesc = _descriptors[nameForCodeGen];
if (propDesc != null)
{
if (propDesc.Attributes.Contains(HtmlControlPersistableAttribute.No))
{
throw new HttpException(HttpRuntime.FormatResourceString(SR.Property_Not_Persistable, name));
}
}
}
}
entry._propValue = PropertyConverter.ObjectFromString(entry._propType,
memberInfo, entry._value);
// use actual property value to get the proper case-sensitive name for enum types
if (entry._propType.IsEnum)
{
if (entry._propValue == null)
{
throw new HttpException(
HttpRuntime.FormatResourceString(SR.Invalid_enum_value,
entry._value, name, entry._propType.FullName));
}
entry._value = Enum.Format(entry._propType, entry._propValue, "G");
}
else if (entry._propType == typeof(Boolean))
{
// get the proper case-sensitive value for boolean
if (entry._value != null && entry._value.Length > 0)
{
entry._value = entry._value.ToLower(CultureInfo.InvariantCulture);
}
else
{
entry._propValue = true;
}
}
if (fTemplate)
{
// Check if the property has a TemplateContainerAttribute, and if
// it does, get the type out of it.
TemplateContainerAttribute templateAttrib =
(TemplateContainerAttribute)Attribute.GetCustomAttribute(propInfo, typeof(TemplateContainerAttribute), false);
if (templateAttrib != null)
{
if (!typeof(INamingContainer).IsAssignableFrom(templateAttrib.ContainerType))
{
throw new HttpException(HttpRuntime.FormatResourceString(
SR.Invalid_template_container, name, templateAttrib.ContainerType.FullName));
}
builder._ctrlType = templateAttrib.ContainerType;
}
}
}
}
}
else if (fItemProp)
{
}
else // could not locate a public property or field
// determine if there is an event of this name.
// do not look for events when running in designer
{
if (!_fInDesigner &&
_objType != null &&
name.Length >= 2 && string.Compare(name.Substring(0, 2), "on", true, CultureInfo.InvariantCulture) == 0)
{
string eventName = name.Substring(2);
if (_eventDescs == null)
{
_eventDescs = TypeDescriptor.GetEvents(_objType);
}
EventDescriptor eventFound = _eventDescs.Find(eventName, true);
if (eventFound != null) // an Add method has been located
{
PropertySetterEventEntry eventEntry = new PropertySetterEventEntry();
eventEntry._eventName = eventFound.Name;
eventEntry._handlerType = eventFound.EventType;
if (value == null || value.Length == 0)
{
throw new HttpException(
HttpRuntime.FormatResourceString(SR.Event_handler_cant_be_empty, name));
}
eventEntry._handlerMethodName = value;
if (_events == null)
{
_events = new ArrayList(3);
}
// add to the list of events
_events.Add(eventEntry);
return;
}
}
// If attributes are not supported, or the property is a template or a
// complex property (which cannot be set through SetAttribute), fail.
if (!_fInDesigner && (!_fSupportsAttributes || builder != null))
{
if (_objType != null)
{
throw new HttpException(
HttpRuntime.FormatResourceString(SR.Type_doesnt_have_property, _objType.FullName, name));
}
if (String.Compare(name, "name", true, CultureInfo.InvariantCulture) != 0)
{
throw new HttpException(HttpRuntime.FormatResourceString(SR.Templates_cannot_have_properties));
}
else
{
return;
}
}
// use the original property name for generic SetAttribute
entry._name = name;
}
if (_entries == null)
{
_entries = new ArrayList(3);
}
// add entry to the list
_entries.Add(entry);
}
/// <summary>
/// Parses the control's tag and sets the properties of the corresponding component
/// </summary>
/// <description>
/// Parses the control's tag's attributes and sets the component's properties.
/// The method can filter all the properties which are not explicitly set as attributes
/// and set them to their default value. That functionality is useful when an undo
/// is performed and we have to revert the component's stage.
/// </description>
/// <param name='element'>
/// The ASP.NET tag
/// </param>
/// <param name='component'>
/// The sited component
/// </param>
/// <param name='checkForDefaults'>
/// Filter the non-explicitly defined properties and set them to the default value.
/// </param>
void ProcessControlProperties(XElement element, IComponent component, bool checkForDefaults)
{
if (component is ListControl)
{
ParseListItems(component as ListControl, element);
}
if ((component is HtmlContainerControl) && !element.IsSelfClosing)
{
var containerControl = component as HtmlContainerControl;
containerControl.InnerHtml = GetTextFromEditor(element.Region.End, element.ClosingTag.Region.Begin);
}
// get only the properties that can be browsed through the property grid and that are not read-only
Attribute[] filter = new Attribute[] { BrowsableAttribute.Yes, ReadOnlyAttribute.No };
PropertyDescriptorCollection pCollection = TypeDescriptor.GetProperties(component.GetType(), filter);
PropertyDescriptor desc = null;
EventDescriptorCollection eCollection = TypeDescriptor.GetEvents(component.GetType(), filter);
EventDescriptor evDesc = null;
List <PropertyDescriptor> explicitDeclarations = new List <PropertyDescriptor> ();
foreach (XAttribute attr in element.Attributes)
{
desc = pCollection.Find(attr.Name.Name, true);
// if we have an event attribute
if (desc == null && CultureInfo.InvariantCulture.CompareInfo.IsPrefix(attr.Name.Name.ToLower(), "on"))
{
IEventBindingService iebs = host.GetService(typeof(IEventBindingService)) as IEventBindingService;
if (iebs == null)
{
throw new Exception("Could not obtain IEventBindingService from host");
}
// remove the "on" prefix from the attribute's name
string eventName = attr.Name.Name.Remove(0, 2);
// try to find an event descriptor with that name
evDesc = eCollection.Find(eventName, true);
if (evDesc != null)
{
desc = iebs.GetEventProperty(evDesc);
}
}
if (desc == null)
{
continue;
}
//throw new Exception ("Could not find property " + attr.Name.Name + " of type " + component.GetType ().ToString ());
desc.SetValue(component, desc.Converter.ConvertFromString(attr.Value));
// add the descriptor to the properties which are defined in the tag
if (checkForDefaults)
{
explicitDeclarations.Add(desc);
}
}
// find properties not defined as attributes in the element's tag and set them to the default value
if (checkForDefaults)
{
// go through all the properties in the collection
foreach (PropertyDescriptor pDesc in pCollection)
{
// the property is explicitly defined in the contrl's tag. skip it
if (explicitDeclarations.Contains(pDesc))
{
continue;
}
// check if the component has it's default value. if yes - skip it
object currVal = pDesc.GetValue(component);
if (pDesc.Attributes.Contains(new DefaultValueAttribute(currVal)))
{
continue;
}
object defVal = (pDesc.Attributes [typeof(DefaultValueAttribute)] as DefaultValueAttribute).Value;
// some of the default values attributes are set in different types
if (!pDesc.PropertyType.IsAssignableFrom(defVal.GetType()))
{
// usually the default value that mismatches the type of the property is a string
if (defVal.GetType() != typeof(String))
{
continue;
}
// if it's an empty string and the property is an integer we have a problem
// the empty string is usually interpreted as -1
// FIXME: find a not so hacky solution for the problem
if (pDesc.PropertyType.IsAssignableFrom(typeof(Int32)) && String.IsNullOrEmpty((string)defVal))
{
defVal = (object)-1;
}
else
{
// finally we have string which we can convert with the help of the property's typeconver
defVal = pDesc.Converter.ConvertFromString((string)defVal);
}
}
// finally, set the default value to the property
pDesc.SetValue(component, defVal);
}
}
}
