Note Thanks to Matthieu Penant for pointing out that Nothing has a separate meaning on value types. Is, IsNot. References can be compared with the "Is" and "IsNot" operators. In VB. Value types cannot be equal to null. But with the Nullable structure, we can wrap an Integer and set it to null with Nothing.
This can help programs be clearer. A summary. Nothing has two meanings. With references, it means a reference that points to no object. And with values, it means the default zero-initialized value. On references, Nothing is null. It may provoke a NullReferenceException.
I get a type mismatch error. Stephen J Whiteley. SJWhiteley said: If that's the case, then you should look at the System. I very well might have to do that, but I was really hoping that VB.
NET had the functionality I wanted. I've never done anything in VB. NET before so I wanted to learn it. I figured porting a VBScript to. NET would not be that hard, but there are a few quirks in. NET that are hard to work around. I also wanted an executable instead of a script file. What about this: Imports Microsoft.
ReadLine End Sub. Can I edit a remote registry and use alternate credentials with that method? The docs say this: The local machine registry is opened if machineName is String.
The requested key must be a root key on the remote machine, and is identified by the appropriate RegistryHive value. Putting the remote machine name in should allow you to access the remote regstry. Off the top of my head, I don't know how to specify alternate credentials. I guess you could use impersonation to do that. Uf, I was sure this two docs are enough msdn , winehq , but ok, if you had tested it already, I give up.
MaxHavoc said: I really thought that there was some easy function that I just didn't know about that did the same thing as VBScript's Array method. I assure you, if it was that easy I would have this done hours ago Ok, I'm at my wits' end. Can anyone explain to me why this won't work? So, of course I try using my new found insight on my old approach just to see if it will work.
LocalMachine, " Just tried it. No runtime errors for type mismatching, but the function call fails, the existing value doesn't get overwritten. Is this an error message? There's no error message, but there's also no effect. The goal is to overwrite an existing registry value with nothing. A null string like "".
The problem is that it's not just a string, it's an array of strings. Visual Basic, however, takes care of adding the final terminating null when we pass the string by value". Object , ByVal e As System. EventArgs Handles MyBase. Could System. IntPtr to Array differ from direct calling api with Array as argument? I am using Visual Studio with Visual Basic. NET I am trying to set it to NULL. John Anthony Oliver I tried doing this with just a one element array since I don't need 10 elements, or any elements really, just all NULL but that didn't work.
NullChar That is what I tried. I get a type mismatch error. Stephen J Whiteley. SJWhiteley said: If that's the case, then you should look at the System. I very well might have to do that, but I was really hoping that VB. A Jagged array is an array of arrays. The Array class is the base class for all the arrays in VB. It is defined in the System namespace. The Array class provides various properties and methods to work with arrays. Gets a bit integer that represents the total number of elements in all the dimensions of the Array.
Sets a range of elements in the Array to zero, to false, or to null, depending on the element type. Copies a range of elements from an Array starting at the first element and pastes them into another Array starting at the first element.
The length is specified as a bit integer. Copies all the elements of the current one-dimensional Array to the specified one-dimensional Array starting at the specified destination Array index.
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