I am trying to dynamically invoke a property of enumeration type but I can't
find a way to get it to work. This is my code which works fine until I call
InvokeMember and I get an ArgumentExcepti on. I've tried various combinations
of parameters in my call to InvokeMember but can't find anything that does
the job. Any help would be appreciated.
Jenny
Dim arrObj(0) As Object
Dim objPInfo As PropertyInfo = TextBox1.GetTyp e.GetProperty(" ScrollBars")
If Not objPInfo Is Nothing Then
If objPInfo.CanWri te Then
If objPInfo.Proper tyType.IsEnum Then
Dim objEnumType As Type = objPInfo.Proper tyType
Dim objFieldInfo As FieldInfo = objEnumType.Get Field("Both")
If Not objFieldInfo Is Nothing Then
arrObj(0) = Activator.Creat eInstance(objEn umType)
arrObj(0).GetTy pe.InvokeMember (objFieldInfo.N ame,
BindingFlags.Se tField, Nothing, arrObj(0), Nothing)
End If
End If
End If
TextBox1.GetTyp e.InvokeMember( "ScrollBars ", BindingFlags.Se tProperty,
Nothing, TextBox1, arrObj)
1  3360 
Jenny, arrObj(0).GetTy pe.InvokeMember (objFieldInfo.N ame,
BindingFlags.S etField, Nothing, arrObj(0), Nothing)
I'm not sure what you're trying to do here. If you want to set the
property value, you should try using
objPInfo.SetVal ue(TextBox1, Enum.Parse(objE numType, "Both"), Nothing)
Mattias
--
Mattias Sjögren [MVP] mattias @ mvps.org http://www.msjogren.net/dotnet/ | http://www.dotnetinterop.com
Please reply only to the newsgroup. This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
by: Sunny |
last post by:
Hi,
I have an old problem which I couldn't solve so far. Now I have found a post
in that group that gave me an idea, but I can not fully understand it.
The problem is: I'm trying to use a Windows.Forms.UserControl in a COM
environment, i.e. I want to host that control in a COM host. So far, so
good, I can host it, but I can not reach the parent COM object from the
control (Parent property is null :( ).
I have stopped the control in the...
|
by: Alicia |
last post by:
Hi all,
I have a problem with an Enum and Reflection. I am using an Xml and
Reflection to create some controls, and to set their properties. All
goes well until I encounter one property which is defined like this:
public enum MyType {
Alpha = 0,
Beta = 1
}
|
by: Rachel Suddeth |
last post by:
I'm trying to use reflection to create an object at runtime where the type
is given by a string. I thought we should be able to do that, but so far
it's not working. I'm trying to work on reproducing the scenario in a
simpler way, but it's slow going, and maybe there is something very basic I
don't know yet....
Given the following lines of code:
-------------
CredLookup testLU = new CredLookup();
string sLUType =...
|
by: Jeff |
last post by:
I am trying to dynamically load an assembly via reflection and then invoke a
method of that assembly that will populate a custom type collection passed
into the method byref. I am able to dynamically load both the DALC
component (for the method call) and the Entity component (for the custom
type collection to pass in), but I keep getting an error ( Message "Object
type cannot be converted to target type.") when invoking the method. If I...
|
by: ECathell |
last post by:
I have a routine that compares 2 intances of the same object to see if there are any changes. The problem is that even though there are no changes, it tells me there are. I have even tried running a new routine that shows a messagebox with both objects' property values. below is my code.
this is the actual comparison code:
Dim Properties() As PropertyInfo = pType.GetProperties(BindingFlags.Public Or BindingFlags.Instance)
Dim PropertyItem...
| | |
by: Luis Arvayo |
last post by:
Hi,
In c#, I need to dynamically create types at runtime that will consist of
the following:
- inherits from a given interface
- will have a constructor with an int argument
|
by: jerryau |
last post by:
Hi,
I am trying to dynamically create object instances based on a string
class name, and then I need to dynamically set values to these
objects, but I have no idea how to do this in C#. Here is the example
of what I need to do:
******Dog.cs******
namespace MySystem
{
|
by: =?Utf-8?B?dG9iaXdhbl9rZW5vYmk=?= |
last post by:
The following code is in a custom deserializer:
object value = (int) 1;
string nameToParse = Enum.GetName(field.FieldType, value);
value = Enum.Parse(field.FieldType, nameToParse);
Currently we follow the path below:
intValue --enum name --enum value
|
by: raylopez99 |
last post by:
What good is C# Reflection, other than to find out what types are in
an assembly? And to dynamically invoke methods in an assembly (.dll
or .exe)?
Also, bonus question, can you use Reflection to build a compiler? One
that will construct a user defined class "on the fly" (literally, the
user defines a class, instantiates it, and runs it from the console
mode, all the while prompted by the program)?
I guess so, but my final question...
|
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...
|
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...
| | |
by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
|
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...
|
by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
|
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...
|
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();...
|
by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
| | |
by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
| |
