What's Difference Between 'typeof' And 'GetType'

Oct 5, 2009

What's the difference between "typeof" and "getType"?

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Use Type.GetType("System.String") Or Just "".GetType()?

Jun 23, 2011

I have a DataGridViewCell object and I need to find out if its a string.

If row.Cells(cellIndex).ValueType Is "".GetType() Then
or
If row.Cells(cellIndex).ValueType Is Type.GetType("System.String") Then

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For(typeof(IRepository<>)) Translate In C# To Vb?

Jul 12, 2010

I've got a method I'm trying to translate from c# to vb, goes something like this .. x.For(typeof(IRepository<>)).Use(typeof(Repository<>)); VB doesn't seem to like the idea of a IRepository(Of ) ... what's the syntax on that?

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How To Find TypeOf A VB6 Control

Dec 14, 2010

I am writing a .NET DLL to iterate through all controls in the a VB6 Form passed byref.So far it seems to work VB.NET code:[code]but the TypeOf operator does not work. Is there another way to find the type of control?

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.net - Design Pattern For TypeOf Subclass?

Mar 4, 2012

I am working on a parser for a serial data protocol. I have an overarching Packet class, a couple sub-classes such as CommandPacket and StatusPacket, and then a few sub-classes of each of those:

[Code]..

While I don't think it is entirely relelvant to the discussion, I am doing this in VB.NET. There is also a similar (but not quite the same) question posted here: Java - subclass validation design pattern

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Select Case TypeOf Control?

Aug 10, 2011

I am trying to write code as the following-

For Each ControlObject As Control In Me.Controls
Select Case TypeOf ControlObject
Case TextBox

[code]....

But it says that "Is expected" after the second line. Is there any technique to do it?

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GetType Is Not Working

Aug 16, 2012

I'm converting some C# code to vb, and (having had some help from the community here already) have encountered another problem. [code] SurveyQ is a class I'm referring to. Converting the type doesn't seem to work. I've figured that I can't use "=" when converting types and have got this as far as: [code] but I now get errors on the GetType(SurveyQ) part, with the error "Keyword does not name a type".

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GetType() From Variable

Sep 12, 2009

I am making a function to create a dataTable but I have problemt with the getType() of the columns

Public Shared Function createDTable(strArray as string, separator as string) as dataTable
Dim newArray as new arrayList(stringToArray(strArray,","))

[Code].....

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GetType() In DirectCast()?

Aug 4, 2011

I have a very simple problem where I have a MyList As List(Of MyBaseClass) but and a couple of MySub(ByVal Dummy As MyDerivedClassA)/MySub(ByVal Dummy As MyDerivedClassB). So I want to do the following ...

For Each MyInstance As MyBaseClass In MyList
MySub(DirectCast(MyInstance, MyInstance.GetType())
...

[code].....

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GetType On Generic Types

Dec 2, 2010

I'm trying register presenters with Windsor using the convention based method but trying to do this in VB.NET, but the problem is it does not want to compile this statement:

Dim type = GetType(AbstractPresenter(Of))

I am getting : Too few type arguments to AbstractPresenter(Of TView, TPresenter)

Which I don't understand because this is a valid statement according to question. Also showing valid in other C# to VB.NET converters when converting typeof(AbstractPresenter<>).

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Unable To Use GetType In Cast?

Dec 21, 2010

The "GetType" method returns a type so why does VS flag the "DirectCast" statement as invalid?

Sub Main()
Dim d As C = New C
d.Value = 5
Dim o As Object = d

[code]....

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VS2008 - GetType Not Defined?

Oct 10, 2011

I'm developing a vb.net program with VS2008. In my case, dt_list is a instance member as List(of Single). When I wrote dt_list = CType(ser2.Deserialize(r), dt_list.GetType()) VS2008 complains about "Type 'dt_list.GetType()' is not defined.".

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Type.GetType Throwing Null Exception

Jan 25, 2012

I am trying to get the type of a class by calling Type.GetType(), however it is throwing an null reference exception. I'm supplying the fully qualified name of the class as a string, I'm not sure what I am doing wrong. Here is what I am doing:Type.GetType("The.Name.Space.TheClassName")That is the fully qualified name of the class, it works fine for import statements.

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Generic TypeOf Operator - See If List Is A List(Of T) Variable - Error: "Type Expected"?

Jan 5, 2011

Dim x = GetType(List(Of )) 'valid statement
Dim list As New List(Of String)

Now I want to see if list is a List(Of T) variable: Dim isList = TypeOf list Is List(Of ) On the last line I get a compile error: "Type Expected". Is there any cheap-performance TypeOf operator alternative for generics?

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"typeof" In C# Convert To VB

Jan 13, 2011

I'm using DataGrid to populate the list, inside the DataGrid I'm trying to put DropDownList. I have the sample code in C#, then trying to convert to VB. But got error.

See the WORD with BOLD in VB. The error is "Operator '=' is not defined for types 'System.Type' and 'System.Type'."

In C#
-------
string sOid = string.Empty;
Control myCtrl1 = datagridlist.Items[i].Cells[2].FindControl("ddlcountry");
if (myCtrl1 != null)

[Code].....

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Use CType To Change An Object Variable "obj" To Custom Class That Reference Using A String Variable Like Obj.GetType.Name?

Feb 9, 2011

The code below works for the class that I hard coded "XCCustomers" in my RetrieveIDandName method where I use CType. However, I would like to be able to pass in various classes and property names to get the integer and string LIST returned. For example, in my code below, I would like to also pass in "XCEmployees" to my RetrieveIDandName method. I feel so close... I was hoping someone knew how to use CType where I can pass in the class name as a string variable.

Note, all the other examples I have seen and tried fail because we are using Option Strict On which disallows late binding. That is why I need to use CType.I also studied the "Activator.CreateInstance" code examples to try to get the class reference instance by string name but I was unable to get CType to work with that.When I use obj.GetType.Name or obj.GetType.FullName in place of the "XCCustomers" in CType(obj, XCCustomers)(i)I get the error "Type 'obj.GetType.Name' is not defined" or "Type 'obj.GetType.FullName' is not defined"

'+++++++++++++++++++++++++++++++
Imports DataLaasXC.Business
Imports DataLaasXC.Utilities

[code]....

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.net - What Is The Difference Between = And :=

Apr 18, 2009

I'm sure this is straightforward but I cannot find the correct string to get a google result. In VB.NET what is the difference between = (equals sign) and := (colon followed by equals sign)?

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Difference Between Asp.net And C#?

Mar 30, 2011

can anyone tell me book for VB.net for beginner and complee package of books important for VB. as i don't know anything abt VB.

what is difference between VB.net and asp.net and c#??

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Difference Between C# And .net?

Aug 26, 2010

Possible Duplicate: What are the most important functional differences between C# and VB.NET? What are the basic difference between c# and VB.net?

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Difference Between C#.Net And .Net?

Apr 27, 2012

know the difference between C#.Net and VB.Net. I use C#.Net for my projects, but when ever I met with some other programmers they often called VB.Net more powerful and easy, than C#.Net. I always asked them "Why it is more powerful then C#, since it uses the same framework?" but still I didn't get any answers.

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Difference Between COM And DLL?

Mar 1, 2006

what exactly distinguishes a COM component from a DLL? Isn't a COM component just a library of functions that can be called from another application? Why is using a COM component so much more complicated than just registering it like one would do with a DLL?

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Difference Between Dim Foo As And Dim Foo =

Jun 4, 2012

I'm looking for an explanation of the difference between

Dim sw1 = New StringWriter()
Dim sw2 As New StringWriter()

Both seem to instantiate new string writer instances that I can use.

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Difference Between For Each And For I?

Mar 10, 2010

I was under the assumption that VB's For Each loop was the same as a For Next loop. But when i try running the following code I do not get the expected result.

[Code]...

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Difference Between Tp(,) And Tpo(1)()

Jun 10, 2010

I have this code, first I thougt it should be the same but i cant acces the info in the same way .. why is this???

Dim tp(,) As Integer = {{1, 3, 5, 9, 7}, {34, 3, 4, 5, 6}}
Dim tpo(1)() As Integer
tpo(0) = New Integer() {1, 3, 5, 9, 7}

[code].....

The first one I use only one for each and the other one I use two .. why is this different? are noy they 2 dimensional arrays ???

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Difference Between VB And .NET?

Jan 18, 2011

What is the difference between VB and VB.NET?

explanation with examples preferred

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.net - Difference Between Casting In C# And It

Dec 9, 2009

The next code works fine in C#:

[Code]...

But this code crash with a OverflowException in VB.Net.

[Code]...

Both codes seems the same to me. What is the difference and how can I get the C# code converted to VB.Net?

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.net - Difference Between SlimDX And SDL

Jun 13, 2011

For those who have experience, working with VB.NET, it's easier to use SlimDX or SDL? The tutorials for SlimDX are already written for .NET, but I've read that SDL it's a lot easier than DirectX itself.in my case, I just need 2D graphics.

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.net - Get The Difference Of Two Arraylists?

Jul 2, 2010

I have two arraylists, and I would like to have a new arraylist with only the uncommon items. Is this the "best" or at least decent way to do it?

[Code]...

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C# - Difference Between 'for Each' And 'for' Loop In .NET?

Jan 13, 2012

[Code].....

What is the major difference between 'for each' and 'for' loops in .NET? Is there any performance gain while comparing these two? Which one gives a better performance/faster/memory management?

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C# - Difference Between An Exe An Dll From .net Standpoint?

Sep 26, 2009

I have in the past used .net executables as libraries. I'd just add them to the references in visual studio and I was ready to go. Today I tried the same to a new exe (actually mine) and it doesn't seem to work. When I add it to Visual Studio and try to watch its members on the Object Browser, it doesn't show up anything inside that executable's assembly.

I know the main difference between an exe and dll is that the first has an entry point while the 2nd doesn't. Are there any more differences? I know that unmanaged dll's also have a DLL entry point, do .net have one too?Also, what might be the reasons that could make my standard exe/dll (with this i mean, not obfuscated or anything extreme like that) not show up anything in the Object Browser?

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