C# - Protected Set For A Property Defined In An Interface
Mar 2, 2010We have an interface, which can be grossly simplified as:
[Code]...
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Error : Protected ReadOnly Property InnerChannel As TChannel' Is Not Accessible In This Context Because It Is 'Protected'
Apr 12, 2010I am having a Friend Class InterceptingChannelBase class.It has a property as below:
Protected ReadOnly Property InnerChannel() As TChannel
Get
Return Me.innerChannelT
[code]....
This class is being inherited by (Friend Class InterceptingInputChannel) class which in turn contains another (Private Class TryReceiveAsyncResult) class.The property above is being used in this private class as below:
Public Sub New(ByVal channel As InterceptingInputChannel(Of TInputChannel), ByVal timeout As TimeSpan, ByVal callback As AsyncCallback, ByVal state As Object)
MyBase.New(channel, callback, state)
[code]....
I am getting the error on the above underlined statement saying that Protected Readonly Property InnerChannel is not accessible in this context because it is declared asa Protected.As far as i think,if i declare a property in class as 'Protected' then if this class is inherited by 'another' class then i can use this property and it should not throw an error.
Reflection - Find From A Property Info Object If That Property Has A Non Public (Private / Protected) Setter?
Aug 27, 2009I searched on the forum / Internet for the solution how a PropetryInfo object (of a Public property) can reveal if it has a Private Protected Setter ... it was all in vain .... all help I found was about how to "Set" value of a public property having a Private Setter.I would like to know if I have a PropertyInfo object of a public property, how would I know if its Setter is Non Public?
I tried, in a exception handling block, where I did a GetValue of the PropertyInfo object and then called SetValue by setting the same value back... but to my surprise it worked well and didn error out.
[Code]...
.net - 'Property' Cannot Implement 'Property' Because There Is No Matching Property On Interface 'IName'?
Dec 9, 2011I'm having some very weird issues with interfaces right now.
I have a very simple setup. In one of my class, I have a Property implementing a Property from an Interface.
In my class it's like:
Private _oForm As IForm
Public Property Form As IForm Implements IContainer.Form
Set(value As IForm)
[Code]...
I have like dozens of interfaces like this working throughout my project and I can't believe this simple one can't work!
Private Or Protected Set For A MustOverride Property?
Jul 24, 2010I'd like to have a Private or Protected "Setter" for a property that also happens to be an abstract (MustOverride). I'm porting some code from C# to VB and in C# this is pretty straight forward. In VB not so much (for me anyway).
Some code...
In C#...
public abstract class BaseClassWithAnAbstractProperty
{
public abstract int AnAbstractIntegerProperty { get; protected set; }
}
[Code]....
The issue seems to be the inability to flesh-out the Get/Set specifics in the declaration.
.net - If An Interface Defines A ReadOnly Property, How Can An Implementer Provide The Setter To This Property
Jun 10, 2011Is there a way for implementers of an interface where a ReadOnly property is defined to make it a complete Read/Write Property ?
Imagine I define an interface to provide a ReadOnly Property (i.e., just a getter for a given value) :
Interface SomeInterface
'the interface only say that implementers must provide a value for reading
ReadOnly Property PublicProperty As String
End Interface
This means implementers must commit to providing a value. But I would like a given implementer to also allow setting that value. In my head, this would mean providing the Property's setter as part of the implementation, doing something like this :
Public Property PublicProperty As String Implements SomeInterface.PublicProperty
Get
Return _myProperty
[code]....
Declare A Property As An Interface Collection Of An Interface?
Feb 7, 2011I want to declare a property as an interface collection of an interface, and I want to instanciate the explicit type later, in the constructor. Something like this.
Public Class LicenseFile
Implements ILicenseFile
Public Property Collection As IList(Of ILicenseFileDataNode)
[Code]....
In short, the question is "Why It Didn't work"? This is a simplified scenario, but It's easy to take a workarround, But I need understand the reason because It's fails.
Implement An Event Defined In An Interface?
Jul 13, 2010I defined the following interface:
Interface INewFileDetector
...
roperty PollIntervalMsec As Integer
[code].....
Implement An Event Interface Defined In A COM App?
Sep 21, 2011I need to implement an event interface defined in a COM app so I can get events. I want to use System.Runtime.InteropServices.ComTypes.IConnectionPointContainer. In Adam Nathan's ".NET and COM", Adam shows some C# code that connects to an IE event set. There he does this:
[Code]...
How To Test If Object Implements Defined Interface
Jun 5, 2011I use the IsAssignableFrom-method to check if the datasource of a bindingsource-object implements an interface i defined. The check happens inside the property-setter like this:
Private WithEvents _BindingSource As BindingSource
''' <summary>
''' BindingSource containing datasource in which search is executed.
''' </summary>
''' <remarks>Datasource must implement ISearchAndFindable.</remarks>
<Description("The BindingSource to search within."), Category("Data")> _
Public Property BindingSource() As BindingSource
[Code] .....
Implementing Interfaces On Classes That Already Have The Interface Members Defined?
Jun 25, 2010So say I define some interface, and that interface has members that need to be implemented under some idea, and I then implement this interface on a class that already has those members defined. How do I NOT receive errors about having to implement said members despite them already being implemented (because I didn't type the oh so ridiculous 'implements IMyInterface.foo').
For example say I have an interface that defines the event KeyPress, and then I have a custom Form that implements this interface of mine. It throws an error. VB is the 5th language I've worked in that uses interfaces... and up until now they've all treated interfaces relatively the same. This is the first time I've seen this not allowed. What perplexes me more, is it IS allowed in other .Net languages. Just not VB.
[Code]...
Fortran To VB Interface - DLL Error "attempted To Read Or Write Protected Memory"
Jul 14, 2009I try to understand how to use a fortran function (which is in a dll) from VB. Actually I want to use vb as interface. I the VB 2008 express form I have 2 textbox and a button. I enter a number in the top textbox and once the button is pushed, this number should be multiplied by 23 and should appear in the bottom textbox... here is my VB code:
[Code]....
VS 2008 : Set A Property From Within The Class It Is Defined In?
Aug 7, 2009How do I set a property from within the class it is defined in?
View 2 RepliesVS 2008 User Defined Property?
Aug 6, 2009I have derived a textbox. This user control works fine everywhere. However, i have added a property in this as follow:
Public _propertyValue As Boolean
Public Overridable Property AllowNull() As Boolean
License The Dos Protected Mode Interface "DPMI"?
Aug 25, 2010How can I license a technology from Microsoft ?I want to license the dos protected mode interface "DPMI".
I've 14 years old so that I don't have many experience for programing this mode.
I want this technology because I'm making an operating system.
I've made another three 16-bit OS but i want to make a one that's using 32-bit.
[Code]...
Word "DPMI" DOS Protected Mode Interface?
Apr 1, 2010I'm an Egyptian boy I've 13 years old and i live in Saudi Arabia and i have some prizes in Programing
so that i want an answer from anyone to the following question: I have just known this word "DPMI" DOS Protected Mode Interface and i have searched for it but i didn't find any thing that's help me i want some information about it and how can i make a simple one because i have made a simple operating system and i want to upgrade it and my simple system is 16-bit how can i make it a 32-bit
Cant Set Value On A Class Property Thats Defined As A String Array
Nov 3, 2009I have created a class that contains a property array, but I cant use the setters and getters.
[Code]...
Protected Error In Compile Time, When No Protected Class Is Used?
Nov 10, 2011Dim box As MultiTextBox = New MultiTextBox
Dim i As Integer
for i = 1 to 3 Step 1
lengthWidthHeight = MultiTextBox.GetItemValues()
Next i
This excerpt of code is using the NXOpen API. In the NXOpen API, the MultiTextBox class is public. However, when I compile the code I get the message:
'NXOpen.UIStyler.MultiTextBox.Protected Sub New(ptr As System.IntPtr)' is not accessible >in this context because it is 'Protected'
My question is, how am I getting an error about protected scope? Could it also be that the API documentation is incorrect?
Error 58'Protected ReadOnly Property Profile() As System.Web.Profile.DefaultProfile' Has Multiple Definitions
Jul 22, 2009when building my application I am getting some temporary files shown in Solution Explorer under Miscellaneous Files lie App_Web_YDKG.VB with following code block in that generating error
Protected ReadOnly Property Profile() As System.Web.Profile.DefaultProfile
Get
Return CType(Me.Context.Profile,System.Web.Profile.DefaultProfile)
End Get
End Property
Error : Error 58'Protected ReadOnly Property Profile() As System.Web.Profile.DefaultProfile' has multiple definitions with identical signatures.C:WINDOWSMicrosoft.NETFrameworkv2.0.50727Temporary ASP.NET Filesinfinityvb2ae71c27d560144bApp_Web_pwduczex.38.vb456
ASP.NET UI Control As Property In Interface
Aug 3, 2011I have a number of pages which implement the same interface:[code]The function doSomethingToTextBox takes a textBox item as a parameter and performs some action on it.I know the textBox is contained on every page which implements my interface, and that it has the same name on each page.My question is: how can I declare the textBox as an interface property? This will remove the need to pass the textBox as a parameter to doSomethingToTextBox()I must also add that I'm currently accessing the TextBox using get/set methods defined as part of the interface - I don't want to have to implement these methods for each page as they are exactly the same on each page.
View 1 RepliesProperty Not A Member Of Interface?
Jul 8, 2009I have an Interface defined like this:
Public Interface ISegment
''' <value>
''' The offset where the span begins
'''</value>
[code]....
The problem is that when I try to use the interface in another class, it tells me that Offset and Length are not members of ISegment. Clearly they are. Here is the code that uses the interface
Public Sub UpdateSegmentListOnDocumentChange(Of ISegment)(ByVal list As List(Of ISegment), ByVal e As DocumentEventArgs) Implements IDocument.UpdateSegmentListOnDocumentChange
[code]....
Get The Actual Property Name When Referencing An Interface?
Oct 29, 2010Consider the following case:
Public Interface IHasDateUpdated
Property DateUpdated As DateTime
End Interface
Public Class MyClass
[code]....
Now, assuming I was referencing an instance of MyClass as an IHasDateUpdated; how would I determine the actual name of the property that implements the interface property via reflection?For example:
Dim x As IHasDateUpdated = New MyClass()
' How do I derive "MyDateUpdated" from "x" using x.DateUpdated?
How To Check If A Property Type Is An Interface
Feb 12, 2009I would like to check if a property's type is an interface (not a specific interface, but any interface).
dim __PropertyInfo As PropertyInfo
dim b as boolean = isinterface(__PropertyInfo)
[code].....
Implementing An Interface With A Different Property Type?
Mar 1, 2010I'm currently trying to create a class that is a composition of the SqlDataAdapter class (as unfortunately you can't inherit from it). In order to try and make it as similar as possible I'm using all the same inherits and interfaces as is documented on MSDN.The problem that I am having is that there are some properties where the interface specifies that the type of the property is IDbCommand. But in the SqlDataAdapter the property type is SqlCommand.
View 3 RepliesOptional Readonly Property In Interface
Aug 25, 2009I am trying to develop a simple interface for allowing quick lists to be generated from classes. Basically, the interface needs to return an ID and a Name. However, some classes have a calculated name property which is read only, others just use a read/write name property. Basically, all I care is that it has a getter, it does not matter if the property has a setter. How can I write this interface to handle either or without throwing compile errors?
View 1 RepliesUsing An Interface Defined In A Generic Type From Within The Defining Type
Feb 14, 2012In trying to add a bit of usage variety to a generic class I'm working on, I ran into this issue with trying to cast an object into an interface instance where the interface is defined inside the generic class.
[Code]...
Interface And Graphics :: Combo Box Text Property?
Apr 9, 2009I have a vb2008 combo box with the DropDownStyle property set to DropDownList.Now, when I set the text property to something programatically nothing happens. That is, the "something" doesn't show up on the control with list collapsed. It still doesn't show even if I force an update(If DropDownStyle property is set to DropDown, setting the text property programatically works fine, even without forcing an update).
View 4 RepliesMock An Interface Property With JustMock In Program?
Jun 6, 2011I am using JustMock to mock interfaces for unit testing, but perhaps I'm not doing it right.[code]...
I want to mock this interface and set that property so that it can be read by consumers of the interface.Beginning with[code]...
VS 2008 - ReadOnly Property Name For Interface Specifiers
Jul 9, 2009I have the following
Imports System
Imports System.Collections.Generic
Imports System.Drawing
Imports System.Linq
Imports System.Windows.Forms
[Code] .....
But I am getting this error:
Error1Class 'DemoPlugInTwo' must implement 'ReadOnly Property name() As String' for interface 'Interfaces.IPlugins'. Implementing property must have matching 'ReadOnly' or 'WriteOnly' specifiers.C:Documents and SettingsOwnerMy DocumentsVisual Studio 2008ProjectsDemoPlugInThreeDemoPlugInThreeDemoPlugInThree.vb1420DemoPlugInThree
I am getting similar errors for the other property and method. I have them set as read only.
Interface And Graphics :: Change The Backcolor Property Of An Object To A Rgb Value?
Dec 8, 2004How can i change the backcolor property of an object to an rgb value?
i do as it says in the help:
Code:
dim ink as long
ink = rgb(233,126,190)
lblInkPot.BackColor = ink
but i get the error "Value of type "Long" cannot be converted to "system.drawing.color"", but it specifically tells you in help to use "long"...