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by: Steve M |
last post by:
I have subclassed CollectionBase. I have also implemented GetEnumerator().
I have tried to set the DataSource of a DataGrid to an instance of my
subclass. However, the items in the grid are not obtained via the Enumerator
that I create in the GetEnumerator() method.
I have tried elplicitly implementing IEnumerable on my sublass as well.
Can anyone help on this? Thanks in advance.
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by: Pol Bawin |
last post by:
Hi,
I have a objectA with a property that return an object B (accessor GET only)
I have defined an ExpandableObjectConverter on the type B and overrided
CanConvertTo, CanConvertFrom, ...
The problem is that can not edit the object B (the proerty in greyed) in the
propertyGrid (I can edit these properties but not the object directly
because, it doesn't have SET accessor)
In fact, when I edit this object, I woul like to change just the...
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by: Eric Johannsen |
last post by:
I have a simple object that inherits from CollectionBase and overrides the
Count property:
namespace MyTest
{
public class CollTest : System.Collections.CollectionBase
{
public override int Count
{
get { return 0; }
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by: Vladimir.Sakharuk |
last post by:
I have created ExpandableObjectConverter in C#. for use in
System.Windows.Forms.PropertyGrid.
The property grid shows the DiffItem is a object that holds member
TheItem.
without expanding TheItem
It works if u click, select from drop down box. until you DoubleClick
it shows error:
"Invalid property Value". with "Object type cannot be converted to
target type."
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by: Adriano Coser |
last post by:
Hello.
I'm facing the exact problem described here:
http://groups.google.com/groups?hl=pt&lr=&threadm=%23cs%24KWF%24BHA.2200%40tkmsftngp02&rnum=1&prev=/groups%3Fhl%3Dpt%26lr%3D%26q%3DTypeConverter%253A%253AGetProperties%26meta%3D
I made a ExpandableObjectConverter subclass but its GetProperties method is
not called when my object is set as a Converter of PropertyDescriptor. The
thread above gives a good explanation of the problem, but...
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by: Adriano Coser |
last post by:
Hello.
I have an ExpandableObjectConverter subclass that I associate to the
'Converter' of a custom property descriptor.
After I changed my .net code to the new syntax (VC 2005), the
GetProperties method of my converter class is not called anymore by
the PropertyGrid. Now my expandable properties always show a property
'Length' with value 0.
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by: Samuel R. Neff |
last post by:
What's the advantage of inheriting from CollectionBase as opposed to
just implementing IList? It seems that it saves you from having to
implement a few properties (Clear, CopyTo, Count, GetEnumerator, and
RemoveAt) but the way it implements all the other things you need to
override seems overkill and counters the advantage of having an
extensible base class.
For example, the documentation example implementation of Remove:
Public...
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by: =?Utf-8?B?TWFyayBDb2xsYXJk?= |
last post by:
I've created a usercontrol with a Person property. The Person property
returns a Person object. I've also created a PersonConverter class which
inherits the ExpandableObjectConverter so the Person property is expandable
in the PropertyGrid. This all works fine.
I've also created another usercontrol that also has a Person property and
returns a Person object. But in this usercontrol I don't want the Person
object to be expandable.
What...
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by: Rohan |
last post by:
Hello,
i am doing a custom class for my property for a property gird using
ExpandableObjectConverter.
I have a class (CustomFontClass) that uses a Converter which inherits
the ExpandableObjectConverter. everything works fine, but the only
thing that doesn't work is that the MyNewFontList NEVER calls the SET.
I have followed the http://www.codeproject.com/KB/vb/using_propertygrid.aspx
example in the example its the same case .
any idea...
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by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
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by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
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by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
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by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
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by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
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by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
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by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
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by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
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by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
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