473,574 Members | 2,946 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ


What's the VB equivalent of the C# typeof() operator (it doesn't appear to
be the VB "TypeOf" operator). Thanks.
Nov 21 '05 #1
6 57145
"Michael C#" <xy*@abcdef.com > wrote in message news:3b******** *********@fe12. lga...
What's the VB equivalent of the C# typeof() operator (it doesn't appear to be the VB "TypeOf" operator).

In C#,

Type t = typeof( String);


Dim t As Type = GetType( String);
Derek Harmon
Nov 21 '05 #2
Some of the same keywords have deceptively similar, but different, meanings
between VB and C#:
VB’s global GetType method is equivalent to C#’s typeof operator,
VB’s TypeOf–Is operator is equivalent to C#’s “is” operator,
and of course, "Is" in VB is "==" in C#...

David Anton
Home of the Instant C# VB.NET to C# converter and the Instant VB C# to
VB.NET converter

"Michael C#" wrote:
What's the VB equivalent of the C# typeof() operator (it doesn't appear to
be the VB "TypeOf" operator). Thanks.

Nov 21 '05 #3

If typeof ctr Is Label then

Is that what you mean?

Nov 21 '05 #4
As the others suggest the GetType keyword is equivalent to C#'s typeof

Not to be confused with the Type.GetType method/function.

The GetType keyword expects an identifier, while Type.GetType expects a

Dim t1 As Type = GetType(Integer )
Dim t2 As Type = Type.GetType("S ystem.Int32")

For known types I find the GetType keyword is better as you receive compile
errors if you miss type the identifier. I reserve Type.GetType for types
that are only known at runtime, such as ones read from my app.config or XML
schema files.

Hope this helps
"Michael C#" <xy*@abcdef.com > wrote in message
news:3b******** *********@fe12. lga...
| What's the VB equivalent of the C# typeof() operator (it doesn't appear to
| be the VB "TypeOf" operator). Thanks.
Nov 21 '05 #5

Michael C# wrote:
What's the VB equivalent of the C# typeof() operator (it doesn't appear to
be the VB "TypeOf" operator). Thanks.

Nov 21 '05 #6
Thanks for the answers guys. I was actually trying to convert a small app
that used the C# typeof operator. Now that I know about GetType, I can
finish it up :) Thanks again.

"Michael C#" <xy*@abcdef.com > wrote in message
news:3b******** *********@fe12. lga...
What's the VB equivalent of the C# typeof() operator (it doesn't appear to
be the VB "TypeOf" operator). Thanks.

Nov 21 '05 #7

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

by: Eric | last post by:
I need to do the following but it doesn't compile if(typeof(listBox1.Items) == typeof(string)){ return; } typeof(listBox1.Items) doesn't work at all. My listBox has 2 types of items in them and I need to know what kind of item a user clicked on so I can use it for drag and drop
by: ichor | last post by:
hi what is the use of the typeof keyword , and how does it differ from the GetType method. i found the GetType method useful but i fail to understand the use of the typeof method. i have tried out a very simple example which i made up myself. Employee e = new Employee(); ContractEmp ec =new ContractEmp();...
by: Mark Miller | last post by:
I am using Reflection.Emit to dynamically build a class. A method of the class to be built requires a Parameter of type "Type". But I don't know how to use Emit to pass a call of "typeof()" to the method. The method could look like this: public void myDynamicMethod(Type type){ //.....do something with the Type passed in....... }
by: Alberto | last post by:
Can somebody tell me why this typeof doesn't work? foreach (Control myControl in Controls) if (typeof(myControl) == "TextBox") ((TextBox)myControl).Text = string.Empty; Thank you very much
by: Brien King | last post by:
Ok, I have three classes (The example here is extremely simplified to illustrate the problem) like this: Public Class A Public Sub DoSomething(ByVal myClass) If TypeOf myClass IS A Then ' ' Never Enters here.... ' End If
by: Jason Kendall | last post by:
Why doesn't the new "IsNot" operator work in conjunction with 'Typeof'?
by: Andrew Robinson | last post by:
I am guessing there is a simple solution but given a type T, how can I check for nullability? how can I accomplish the following? bool nullable = typeof(int).IsNullable; // false bool nullable = typeof(int?).IsNullable; // true bool nullable = typeof(string).IsNullable; // true Thanks for any help.
by: EManning | last post by:
Using A2003. I've got an option group that has a number of check boxes. I have coding to clear the option group if the user wishes to cancel their choice. This coding also clears the rest of the controls on the form. Snippet of the coding: <..snipped..> ElseIf TypeOf oCtrl Is CheckBox Then oCtrl.Value = False <..snipped..> ElseIf...
by: effendi | last post by:
I am testting the following code in firefox function fDHTMLPopulateFields(displayValuesArray, displayOrderArray) { var i, currentElement, displayFieldID, currentChild, nDisplayValues = displayValuesArray.length; for (i=0; i<nDisplayValues; i++) {
by: rkk | last post by:
Hi, Is there an equivalent typeof macro/method to determine the type of a variable in runtime & most importantly that works well with most known C compilers? gcc compiler supports typeof() macro, but the same code is not getting compiled in solaris forte compiler and in microsoft VS 2003 compiler. I tried something like below:
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it. First, let's disable language...
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. ...
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...
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...
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...
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...
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
by: muto222 | last post by:
How can i add a mobile payment intergratation into php mysql website.
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...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.