/// <summary>
/// Here is where we handle IVsPerPropertyBrowsing.DisplayChildProperties
/// </summary>
private void OnGetTypeConverterAndTypeEditor(Com2PropertyDescriptor sender, GetTypeConverterAndTypeEditorEvent gveevent)
{
if (sender.TargetObject is NativeMethods.IVsPerPropertyBrowsing)
{
// we only do this for IDispatch types
if (sender.CanShow && typeof(UnsafeNativeMethods.IDispatch).IsAssignableFrom(sender.PropertyType))
{
NativeMethods.IVsPerPropertyBrowsing vsObj = (NativeMethods.IVsPerPropertyBrowsing)sender.TargetObject;
// should we make this read only?
bool pfResult = false;
int hr = vsObj.DisplayChildProperties(sender.DISPID, ref pfResult);
if (gveevent.TypeConverter is Com2IDispatchConverter)
{
gveevent.TypeConverter = new Com2IDispatchConverter(sender, (hr == NativeMethods.S_OK && pfResult));
}
else
{
gveevent.TypeConverter = new Com2IDispatchConverter(sender, (hr == NativeMethods.S_OK && pfResult), gveevent.TypeConverter);
}
}
}
Debug.Assert(sender.TargetObject == null || sender.TargetObject is NativeMethods.IVsPerPropertyBrowsing, "Object is not " + Interface.Name + "!");
}
private void OnGetTypeConverterAndTypeEditor(Com2PropertyDescriptor sender, GetTypeConverterAndTypeEditorEvent gveevent) {
object target = sender.TargetObject;
if (target is NativeMethods.IProvidePropertyBuilder) {
NativeMethods.IProvidePropertyBuilder propBuilder = (NativeMethods.IProvidePropertyBuilder)target;
int[] pctlBldType = new int[1];
string guidString = null;
if (GetBuilderGuidString(propBuilder, sender.DISPID, ref guidString, pctlBldType)) {
gveevent.TypeEditor = new Com2PropertyBuilderUITypeEditor(sender, guidString, pctlBldType[0], (UITypeEditor)gveevent.TypeEditor);
}
}
}
private void OnGetTypeConverterAndTypeEditor(Com2PropertyDescriptor sender, GetTypeConverterAndTypeEditorEvent gveevent)
{
object targetObject = sender.TargetObject;
if (targetObject is NativeMethods.IProvidePropertyBuilder)
{
NativeMethods.IProvidePropertyBuilder target = (NativeMethods.IProvidePropertyBuilder) targetObject;
int[] bldrType = new int[1];
string strGuidBldr = null;
if (this.GetBuilderGuidString(target, sender.DISPID, ref strGuidBldr, bldrType))
{
gveevent.TypeEditor = new Com2PropertyBuilderUITypeEditor(sender, strGuidBldr, bldrType[0], (UITypeEditor) gveevent.TypeEditor);
}
}
}
private void OnGetTypeConverterAndTypeEditor(Com2PropertyDescriptor sender, GetTypeConverterAndTypeEditorEvent gveevent)
{
object targetObject = sender.TargetObject;
if (targetObject is NativeMethods.IProvidePropertyBuilder)
{
NativeMethods.IProvidePropertyBuilder target = (NativeMethods.IProvidePropertyBuilder)targetObject;
int[] bldrType = new int[1];
string strGuidBldr = null;
if (this.GetBuilderGuidString(target, sender.DISPID, ref strGuidBldr, bldrType))
{
gveevent.TypeEditor = new Com2PropertyBuilderUITypeEditor(sender, strGuidBldr, bldrType[0], (UITypeEditor)gveevent.TypeEditor);
}
}
}
private void OnGetTypeConverterAndTypeEditor(Com2PropertyDescriptor sender, GetTypeConverterAndTypeEditorEvent gveevent)
{
object target = sender.TargetObject;
if (target is NativeMethods.IProvidePropertyBuilder propBuilder)
{
int[] pctlBldType = new int[1];
string guidString = null;
if (GetBuilderGuidString(propBuilder, sender.DISPID, ref guidString, pctlBldType))
{
gveevent.TypeEditor = new Com2PropertyBuilderUITypeEditor(sender, guidString, pctlBldType[0], (UITypeEditor)gveevent.TypeEditor);
}
}
}
private void OnGetTypeConverterAndTypeEditor(Com2PropertyDescriptor sender, GetTypeConverterAndTypeEditorEvent gveevent)
{
if (sender.TargetObject is System.Windows.Forms.NativeMethods.IPerPropertyBrowsing)
{
System.Windows.Forms.NativeMethods.IPerPropertyBrowsing targetObject = (System.Windows.Forms.NativeMethods.IPerPropertyBrowsing)sender.TargetObject;
bool flag = false;
System.Windows.Forms.NativeMethods.CA_STRUCT pCaStringsOut = new System.Windows.Forms.NativeMethods.CA_STRUCT();
System.Windows.Forms.NativeMethods.CA_STRUCT pCaCookiesOut = new System.Windows.Forms.NativeMethods.CA_STRUCT();
int errorCode = 0;
try
{
errorCode = targetObject.GetPredefinedStrings(sender.DISPID, pCaStringsOut, pCaCookiesOut);
}
catch (ExternalException exception)
{
errorCode = exception.ErrorCode;
}
if (gveevent.TypeConverter is Com2IPerPropertyEnumConverter)
{
gveevent.TypeConverter = null;
}
if (errorCode != 0)
{
flag = false;
}
else
{
flag = true;
}
if (flag)
{
OleStrCAMarshaler names = new OleStrCAMarshaler(pCaStringsOut);
Int32CAMarshaler values = new Int32CAMarshaler(pCaCookiesOut);
if ((names.Count > 0) && (values.Count > 0))
{
gveevent.TypeConverter = new Com2IPerPropertyEnumConverter(new Com2IPerPropertyBrowsingEnum(sender, this, names, values, true));
}
}
if (!flag && !sender.ConvertingNativeType)
{
Guid propertyPageGuid = this.GetPropertyPageGuid(targetObject, sender.DISPID);
if (!Guid.Empty.Equals(propertyPageGuid))
{
gveevent.TypeEditor = new Com2PropertyPageUITypeEditor(sender, propertyPageGuid, (UITypeEditor)gveevent.TypeEditor);
}
}
}
}
public void GetTypeConverterAndTypeEditor(ref TypeConverter typeConverter, System.Type editorBaseType, ref object typeEditor)
{
TypeConverter currentConverter = typeConverter;
object currentEditor = typeEditor;
if (currentConverter == null)
{
currentConverter = this.GetBaseTypeConverter();
}
if (currentEditor == null)
{
currentEditor = this.GetBaseTypeEditor(editorBaseType);
}
if (((this.refreshState & 0x2000) == 0) && (this.PropertyType == typeof(Com2Variant)))
{
System.Type propertyType = this.PropertyType;
object propertyValue = this.GetValue(this.TargetObject);
if (propertyValue != null)
{
propertyValue.GetType();
}
ComNativeDescriptor.ResolveVariantTypeConverterAndTypeEditor(propertyValue, ref currentConverter, editorBaseType, ref currentEditor);
}
if (currentConverter is Com2PropDescMainConverter)
{
currentConverter = ((Com2PropDescMainConverter)currentConverter).InnerConverter;
}
GetTypeConverterAndTypeEditorEvent e = new GetTypeConverterAndTypeEditorEvent(currentConverter, currentEditor);
this.OnGetTypeConverterAndTypeEditor(e);
currentConverter = e.TypeConverter;
currentEditor = e.TypeEditor;
if (currentConverter == null)
{
currentConverter = this.GetBaseTypeConverter();
}
if (currentEditor == null)
{
currentEditor = this.GetBaseTypeEditor(editorBaseType);
}
System.Type type = currentConverter.GetType();
if ((type != typeof(TypeConverter)) && (type != typeof(Com2PropDescMainConverter)))
{
currentConverter = new Com2PropDescMainConverter(this, currentConverter);
}
typeConverter = currentConverter;
typeEditor = currentEditor;
}
private void OnGetTypeConverterAndTypeEditor(Com2PropertyDescriptor sender, GetTypeConverterAndTypeEditorEvent gveevent)
{
if (sender.TargetObject is System.Windows.Forms.NativeMethods.IPerPropertyBrowsing)
{
System.Windows.Forms.NativeMethods.IPerPropertyBrowsing targetObject = (System.Windows.Forms.NativeMethods.IPerPropertyBrowsing) sender.TargetObject;
bool flag = false;
System.Windows.Forms.NativeMethods.CA_STRUCT pCaStringsOut = new System.Windows.Forms.NativeMethods.CA_STRUCT();
System.Windows.Forms.NativeMethods.CA_STRUCT pCaCookiesOut = new System.Windows.Forms.NativeMethods.CA_STRUCT();
int errorCode = 0;
try
{
errorCode = targetObject.GetPredefinedStrings(sender.DISPID, pCaStringsOut, pCaCookiesOut);
}
catch (ExternalException exception)
{
errorCode = exception.ErrorCode;
}
if (gveevent.TypeConverter is Com2IPerPropertyEnumConverter)
{
gveevent.TypeConverter = null;
}
if (errorCode != 0)
{
flag = false;
}
else
{
flag = true;
}
if (flag)
{
OleStrCAMarshaler names = new OleStrCAMarshaler(pCaStringsOut);
Int32CAMarshaler values = new Int32CAMarshaler(pCaCookiesOut);
if ((names.Count > 0) && (values.Count > 0))
{
gveevent.TypeConverter = new Com2IPerPropertyEnumConverter(new Com2IPerPropertyBrowsingEnum(sender, this, names, values, true));
}
}
if (!flag && !sender.ConvertingNativeType)
{
Guid propertyPageGuid = this.GetPropertyPageGuid(targetObject, sender.DISPID);
if (!Guid.Empty.Equals(propertyPageGuid))
{
gveevent.TypeEditor = new Com2PropertyPageUITypeEditor(sender, propertyPageGuid, (UITypeEditor) gveevent.TypeEditor);
}
}
}
}
protected void OnGetTypeConverterAndTypeEditor(GetTypeConverterAndTypeEditorEvent e)
{
try
{
this.com2props.AlwaysValid = this.com2props.CheckValid();
GetTypeConverterAndTypeEditorEventHandler handler = (GetTypeConverterAndTypeEditorEventHandler)this.Events[EventGetTypeConverterAndTypeEditor];
if (handler != null)
{
handler(this, e);
}
}
finally
{
this.com2props.AlwaysValid = false;
}
}
private void OnGetTypeConverterAndTypeEditor(Com2PropertyDescriptor sender, GetTypeConverterAndTypeEditorEvent gveevent)
{
if (((sender.TargetObject is NativeMethods.IVsPerPropertyBrowsing) && sender.CanShow) && typeof(UnsafeNativeMethods.IDispatch).IsAssignableFrom(sender.PropertyType))
{
NativeMethods.IVsPerPropertyBrowsing targetObject = (NativeMethods.IVsPerPropertyBrowsing)sender.TargetObject;
bool pfDisplay = false;
int num = targetObject.DisplayChildProperties(sender.DISPID, ref pfDisplay);
if (gveevent.TypeConverter is Com2IDispatchConverter)
{
gveevent.TypeConverter = new Com2IDispatchConverter(sender, (num == 0) && pfDisplay);
}
else
{
gveevent.TypeConverter = new Com2IDispatchConverter(sender, (num == 0) && pfDisplay, gveevent.TypeConverter);
}
}
}
private void OnGetTypeConverterAndTypeEditor(Com2PropertyDescriptor sender, GetTypeConverterAndTypeEditorEvent gveevent)
{
if (((sender.TargetObject is NativeMethods.IVsPerPropertyBrowsing) && sender.CanShow) && typeof(UnsafeNativeMethods.IDispatch).IsAssignableFrom(sender.PropertyType))
{
NativeMethods.IVsPerPropertyBrowsing targetObject = (NativeMethods.IVsPerPropertyBrowsing) sender.TargetObject;
bool pfDisplay = false;
int num = targetObject.DisplayChildProperties(sender.DISPID, ref pfDisplay);
if (gveevent.TypeConverter is Com2IDispatchConverter)
{
gveevent.TypeConverter = new Com2IDispatchConverter(sender, (num == 0) && pfDisplay);
}
else
{
gveevent.TypeConverter = new Com2IDispatchConverter(sender, (num == 0) && pfDisplay, gveevent.TypeConverter);
}
}
}
private unsafe void OnGetTypeConverterAndTypeEditor(Com2PropertyDescriptor sender, GetTypeConverterAndTypeEditorEvent gveevent)
{
if (sender.TargetObject is not Oleaut32.IPerPropertyBrowsing ppb)
{
return;
}
// check for enums
Ole32.CALPOLESTR caStrings = default;
Ole32.CADWORD caCookies = default;
HRESULT hr;
try
{
hr = ppb.GetPredefinedStrings(sender.DISPID, &caStrings, &caCookies);
}
catch (ExternalException ex)
{
hr = (HRESULT)ex.ErrorCode;
Debug.Fail($"An exception occurred inside IPerPropertyBrowsing::GetPredefinedStrings(dispid={sender.DISPID}), object type={new ComNativeDescriptor().GetClassName(ppb)}");
}
// Terminate the existing editor if we created the current one so if the items have disappeared,
// we don't hold onto the old items.
if (gveevent.TypeConverter is Com2IPerPropertyEnumConverter)
{
gveevent.TypeConverter = null;
}
if (hr == HRESULT.S_OK)
{
string[] names = caStrings.ConvertAndFree();
uint[] cookies = caCookies.ConvertAndFree();
if (names.Length > 0 && cookies.Length > 0)
{
gveevent.TypeConverter = new Com2IPerPropertyEnumConverter(new Com2IPerPropertyBrowsingEnum(sender, names, cookies));
}
}
else
{
// If we didn't get any strings, try the proppage editor
//
// This is a bit of a backwards-compat work around. Many older ActiveX controls will show a
// property page for all properties since the old grid would only put up the [...] button for
// "(Custom)". If we have a conversion editor, don't allow this to override it.
if (sender.ConvertingNativeType)
{
return;
}
Guid guid = GetPropertyPageGuid(ppb, sender.DISPID);
if (!Guid.Empty.Equals(guid))
{
gveevent.TypeEditor = new Com2PropertyPageUITypeEditor(sender, guid, (UITypeEditor)gveevent.TypeEditor);
}
}
}
private void OnGetTypeConverterAndTypeEditor(Com2PropertyDescriptor sender, GetTypeConverterAndTypeEditorEvent gveevent)
{
if (sender.TargetObject is NativeMethods.IPerPropertyBrowsing)
{
NativeMethods.IPerPropertyBrowsing ppb = (NativeMethods.IPerPropertyBrowsing)sender.TargetObject;
bool hasStrings = false;
// check for enums
NativeMethods.CA_STRUCT caStrings = new NativeMethods.CA_STRUCT();
NativeMethods.CA_STRUCT caCookies = new NativeMethods.CA_STRUCT();
int hr = NativeMethods.S_OK;
try {
hr = ppb.GetPredefinedStrings(sender.DISPID, caStrings, caCookies);
}
catch (ExternalException ex) {
hr = ex.ErrorCode;
Debug.Fail("An exception occurred inside IPerPropertyBrowsing::GetPredefinedStrings(dispid=" + sender.DISPID + "), object type=" + new ComNativeDescriptor().GetClassName(ppb) + ". This is caused by an exception (usually an AV) inside the object being browsed, and is not a problem in the properties window.");
}
// Terminate the existing editor if we created the current one
// so if the items have disappeared, we don't hold onto the old
// items.
if (gveevent.TypeConverter is Com2IPerPropertyEnumConverter)
{
gveevent.TypeConverter = null;
}
if (hr != NativeMethods.S_OK)
{
hasStrings = false;
}
else
{
hasStrings = true;
}
if (hasStrings)
{
OleStrCAMarshaler stringMarshaler = new OleStrCAMarshaler(caStrings);
Int32CAMarshaler intMarshaler = new Int32CAMarshaler(caCookies);
if (stringMarshaler.Count > 0 && intMarshaler.Count > 0)
{
gveevent.TypeConverter = new Com2IPerPropertyEnumConverter(new Com2IPerPropertyBrowsingEnum(sender, this, stringMarshaler, intMarshaler, true));
}
else
{
//hasStrings = false;
}
}
// if we didn't get any strings, try the proppage edtior
//
if (!hasStrings)
{
// this is a _bit_ of a backwards-compat work around...
// many older ActiveX controls will show a property page
// for all properties since the old grid would only put up the
// [...] button for "(Custom)". If we have a conversion editor,
// don't allow this to override it...
//
if (sender.ConvertingNativeType)
{
return;
}
Guid g = GetPropertyPageGuid(ppb, sender.DISPID);
if (!Guid.Empty.Equals(g))
{
gveevent.TypeEditor = new Com2PropertyPageUITypeEditor(sender, g, (UITypeEditor)gveevent.TypeEditor);
}
}
}
}
/// <include file='doc\COM2IVsPerPropertyBrowsingHandler.uex' path='docs/doc[@for="Com2IVsPerPropertyBrowsingHandler.OnGetTypeConverterAndTypeEditor"]/*' />
/// <devdoc>
/// Here is where we handle IVsPerPropertyBrowsing.DisplayChildProperties
/// </devdoc>
private void OnGetTypeConverterAndTypeEditor(Com2PropertyDescriptor sender, GetTypeConverterAndTypeEditorEvent gveevent) {
if (sender.TargetObject is NativeMethods.IVsPerPropertyBrowsing){
// we only do this for IDispatch types
if (sender.CanShow && typeof(UnsafeNativeMethods.IDispatch).IsAssignableFrom(sender.PropertyType)){
NativeMethods.IVsPerPropertyBrowsing vsObj = (NativeMethods.IVsPerPropertyBrowsing)sender.TargetObject;
// should we make this read only?
bool pfResult = false;
int hr = vsObj.DisplayChildProperties(sender.DISPID, ref pfResult);
if (gveevent.TypeConverter is Com2IDispatchConverter){
gveevent.TypeConverter = new Com2IDispatchConverter(sender, (hr == NativeMethods.S_OK && pfResult));
}
else{
gveevent.TypeConverter = new Com2IDispatchConverter(sender, (hr == NativeMethods.S_OK && pfResult), gveevent.TypeConverter);
}
}
}
Debug.Assert(sender.TargetObject == null || sender.TargetObject is NativeMethods.IVsPerPropertyBrowsing, "Object is not " + Interface.Name + "!");
}
private unsafe void OnGetTypeConverterAndTypeEditor(Com2PropertyDescriptor sender, GetTypeConverterAndTypeEditorEvent gveevent)
{
object target = sender.TargetObject;
if (target is VSSDK.IProvidePropertyBuilder propBuilder)
{
string guidString = null;
VSSDK.CTLBLDTYPE pctlBldType = 0;
if (GetBuilderGuidString(propBuilder, sender.DISPID, ref guidString, &pctlBldType))
{
gveevent.TypeEditor = new Com2PropertyBuilderUITypeEditor(sender, guidString, pctlBldType, (UITypeEditor)gveevent.TypeEditor);
}
}
}
private void OnGetTypeConverterAndTypeEditor(Com2PropertyDescriptor sender, GetTypeConverterAndTypeEditorEvent gveevent) {
if (sender.TargetObject is NativeMethods.IPerPropertyBrowsing) {
NativeMethods.IPerPropertyBrowsing ppb = (NativeMethods.IPerPropertyBrowsing)sender.TargetObject;
bool hasStrings = false;
// check for enums
NativeMethods.CA_STRUCT caStrings = new NativeMethods.CA_STRUCT();
NativeMethods.CA_STRUCT caCookies = new NativeMethods.CA_STRUCT();
int hr = NativeMethods.S_OK;
try {
hr = ppb.GetPredefinedStrings(sender.DISPID, caStrings, caCookies);
}
catch(ExternalException ex){
hr = ex.ErrorCode;
Debug.Fail("An exception occurred inside IPerPropertyBrowsing::GetPredefinedStrings(dispid=" + sender.DISPID + "), object type=" + new ComNativeDescriptor().GetClassName(ppb) + ". This is caused by an exception (usually an AV) inside the object being browsed, and is not a problem in the properties window.");
}
// Terminate the existing editor if we created the current one
// so if the items have disappeared, we don't hold onto the old
// items.
if (gveevent.TypeConverter is Com2IPerPropertyEnumConverter) {
gveevent.TypeConverter = null;
}
if (hr != NativeMethods.S_OK) {
hasStrings = false;
}
else {
hasStrings = true;
}
if (hasStrings) {
OleStrCAMarshaler stringMarshaler = new OleStrCAMarshaler(caStrings);
Int32CAMarshaler intMarshaler = new Int32CAMarshaler(caCookies);
if (stringMarshaler.Count > 0 && intMarshaler.Count > 0) {
gveevent.TypeConverter = new Com2IPerPropertyEnumConverter(new Com2IPerPropertyBrowsingEnum(sender, this, stringMarshaler, intMarshaler, true));
}
else {
//hasStrings = false;
}
}
// if we didn't get any strings, try the proppage edtior
//
if (!hasStrings){
// this is a _bit_ of a backwards-compat work around...
// many older ActiveX controls will show a property page
// for all properties since the old grid would only put up the
// [...] button for "(Custom)". If we have a conversion editor,
// don't allow this to override it...
//
if (sender.ConvertingNativeType){
return;
}
Guid g = GetPropertyPageGuid(ppb, sender.DISPID);
if (!Guid.Empty.Equals(g)){
gveevent.TypeEditor = new Com2PropertyPageUITypeEditor(sender, g, (UITypeEditor)gveevent.TypeEditor);
}
}
}
}
/// <summary>
/// Here is where we handle IVsPerPropertyBrowsing.DisplayChildProperties
/// </summary>
private unsafe void OnGetTypeConverterAndTypeEditor(Com2PropertyDescriptor sender, GetTypeConverterAndTypeEditorEvent gveevent)
{
if (sender.TargetObject is VSSDK.IVsPerPropertyBrowsing)
{
// we only do this for IDispatch types
if (sender.CanShow && typeof(Oleaut32.IDispatch).IsAssignableFrom(sender.PropertyType))
{
VSSDK.IVsPerPropertyBrowsing vsObj = (VSSDK.IVsPerPropertyBrowsing)sender.TargetObject;
// should we make this read only?
BOOL pfResult = BOOL.FALSE;
HRESULT hr = vsObj.DisplayChildProperties(sender.DISPID, &pfResult);
if (gveevent.TypeConverter is Com2IDispatchConverter)
{
gveevent.TypeConverter = new Com2IDispatchConverter(sender, hr == HRESULT.S_OK && pfResult.IsTrue());
}
else
{
gveevent.TypeConverter = new Com2IDispatchConverter(hr == HRESULT.S_OK && pfResult.IsTrue(), gveevent.TypeConverter);
}
}
}
Debug.Assert(sender.TargetObject is null || sender.TargetObject is VSSDK.IVsPerPropertyBrowsing, "Object is not " + Interface.Name + "!");
}
protected void OnGetTypeConverterAndTypeEditor(GetTypeConverterAndTypeEditorEvent e) {
try {
com2props.AlwaysValid = com2props.CheckValid();
GetTypeConverterAndTypeEditorEventHandler handler = (GetTypeConverterAndTypeEditorEventHandler)Events[EventGetTypeConverterAndTypeEditor];
if (handler != null) handler(this, e);
}
finally {
com2props.AlwaysValid = false;
}
}
public void GetTypeConverterAndTypeEditor(ref TypeConverter typeConverter, System.Type editorBaseType, ref object typeEditor)
{
TypeConverter currentConverter = typeConverter;
object currentEditor = typeEditor;
if (currentConverter == null)
{
currentConverter = this.GetBaseTypeConverter();
}
if (currentEditor == null)
{
currentEditor = this.GetBaseTypeEditor(editorBaseType);
}
if (((this.refreshState & 0x2000) == 0) && (this.PropertyType == typeof(Com2Variant)))
{
System.Type propertyType = this.PropertyType;
object propertyValue = this.GetValue(this.TargetObject);
if (propertyValue != null)
{
propertyValue.GetType();
}
ComNativeDescriptor.ResolveVariantTypeConverterAndTypeEditor(propertyValue, ref currentConverter, editorBaseType, ref currentEditor);
}
if (currentConverter is Com2PropDescMainConverter)
{
currentConverter = ((Com2PropDescMainConverter) currentConverter).InnerConverter;
}
GetTypeConverterAndTypeEditorEvent e = new GetTypeConverterAndTypeEditorEvent(currentConverter, currentEditor);
this.OnGetTypeConverterAndTypeEditor(e);
currentConverter = e.TypeConverter;
currentEditor = e.TypeEditor;
if (currentConverter == null)
{
currentConverter = this.GetBaseTypeConverter();
}
if (currentEditor == null)
{
currentEditor = this.GetBaseTypeEditor(editorBaseType);
}
System.Type type = currentConverter.GetType();
if ((type != typeof(TypeConverter)) && (type != typeof(Com2PropDescMainConverter)))
{
currentConverter = new Com2PropDescMainConverter(this, currentConverter);
}
typeConverter = currentConverter;
typeEditor = currentEditor;
}
/// <include file='doc\COM2PropertyDescriptor.uex' path='docs/doc[@for="Com2PropertyDescriptor.GetTypeConverterAndTypeEditor"]/*' />
/// <devdoc>
/// Retrieves the value editor for the property. If a value editor is passed
/// in as a TypeConverterAttribute, that value editor will be instantiated.
/// If no such attribute was found, a system value editor will be looked for.
/// See TypeConverter for a description of how system value editors are found.
/// If there is no system value editor, null is returned. If the value editor found
/// takes an IEditorSite in its constructor, the parameter will be passed in.
/// </devdoc>
public void GetTypeConverterAndTypeEditor(ref TypeConverter typeConverter, Type editorBaseType, ref Object typeEditor) {
// get the base editor and converter, attributes first
TypeConverter localConverter = typeConverter;
Object localEditor = typeEditor;
if (localConverter == null) {
localConverter = GetBaseTypeConverter();
}
if (localEditor == null) {
localEditor = GetBaseTypeEditor(editorBaseType);
}
// if this is a object, get the value and attempt to create the correct value editor based on that value.
// we don't do this if the state came from an attribute
//
if (0 == (refreshState & Com2PropertyDescriptorRefresh.TypeConverterAttr) && this.PropertyType == typeof(Com2Variant)) {
Type editorType = PropertyType;
Object value = GetValue(TargetObject);
if (value != null) {
editorType = value.GetType();
}
ComNativeDescriptor.ResolveVariantTypeConverterAndTypeEditor(value, ref localConverter, editorBaseType, ref localEditor);
}
// now see if someone else would like to serve up a value editor
//
// unwrap the editor if it's one of ours.
if (localConverter is Com2PropDescMainConverter) {
localConverter = ((Com2PropDescMainConverter)localConverter).InnerConverter;
}
GetTypeConverterAndTypeEditorEvent e = new GetTypeConverterAndTypeEditorEvent(localConverter, localEditor);
OnGetTypeConverterAndTypeEditor(e);
localConverter = e.TypeConverter;
localEditor = e.TypeEditor;
// just in case one of the handlers removed our editor...
//
if (localConverter == null) {
localConverter = GetBaseTypeConverter();
}
if (localEditor == null) {
localEditor = GetBaseTypeEditor(editorBaseType);
}
// wrap the value editor in our main value editor, but only if it isn't "TypeConverter" or already a Com2PropDescMainTypeConverter
//
Type localConverterType = localConverter.GetType();
if (localConverterType != typeof(TypeConverter) && localConverterType != (typeof(Com2PropDescMainConverter))) {
localConverter = new Com2PropDescMainConverter(this, localConverter);
}
// save the values back to the variables.
//
typeConverter = localConverter;
typeEditor = localEditor;
}