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Questions tagged [nothing]

In VB.NET, Nothing refers to something which has not been initialized. In C# it would be null. Occasionally used in the Scala type system.

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Replacement for "If object = Nothing Then" in Strict Mode VB.NET

I have a function which has a selectedID parameter of type "object". If my parameter is the default for the underlying type: i.e. Integer default is zero, I want some action to take place. Without "Strict On", I can use: If selectedID = Nothing…
Jonathan
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How to handle null/nothing/blank values on MS Access 2010 form controls within VBA?

I have a need for a "track-changes" capability in Access 2010. I ran across this script which should do the trick with a little work. It's clear and understandable but it doesn't quite yet handle all of the cases I need for textboxes. (I'll…
John
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Determine empty column with Nothing, = Nothing or IsNullOrEmpty

When you want to determine if a database column is empty (i.e not null but there is not any value in it) what are the differences between the below options: customerRegion varchar(10) NULL is retrieved from the SQL database: If customerRegion = ""…
03Usr
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How do I know if an object is already referenced?

In some VBA attached to an Excel 2003 spreadsheet I need to make use of some objects that take a while to instantiate - so I only want to do the 'set' thing once... It's easier the show the code than to write an explanation! ' Declare the expensive…
SAL
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passing nothing parameter in VB.NET (Object reference not set to an instance of an object)

I'm trying to pass "Nothing" to a parameter in Vb.NET ( using VS 2010 with everything to default ) The code is like this: Public Property status As statusEvidenta _ Get Me.m_status = Nothing Me.m_status =…
mcirsta
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Wordpress Error "Nothing Found" caused by the Polylang plugin

The website is on CMS WordPress, and periodically, after making any edits (whether it's a change in a post/page, updating a plugin, widget, or theme file), the "Nothing Found" error occurs. This error specifically affects all sections and…
Legalgrounds
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How can i deploy my react app on any hosting like vercel / render

How can i deploy my react app on any hosting like vercel / render. I m trying both but always got the error. This is my repo on git : https://github.com/rohitdr/project.git How can i deploy my react app on any hosting like vercel / render. I m…
Rohit kumar
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Kotlin Generic problem, UNCHECKED_CAST , required:Nothing

@file:Suppress("UNCHECKED_CAST") data class Element( val key: String, val valueOne: T, val valueTwo: T, val comparator: Comparator, val comparatorValue: CompareResult ) enum class CompareResult( val value: Int ) { …
smaricevic
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dispose or turn object to null object from within its sub

I have an object which creates a line in an sql table. using that object i can create and modify the record. I want to add a sub that would delete the record and than dispose the object. Something like this: class myRecord int recordId sub…
barak.o
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Check for empty array indexes in VBA (that can include objects)

I need to do a is nothing check on a Variant array to exclude empty indexes from being used. I use is nothing to capture empty indexes which hold (empty) objects, it works fine but for indexes that hold regular data types (not objects), it throws an…
Albin
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Python file handling / counting amounts in file

This code is to read from a file then count the amount of times the same ip comes up and print the results to a file i have made called results.csv, it is printing to the PowerShell on python but not to the file and the counter is not adding…
papabeale
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PHP - how i can have a list of all the php code?

I want to have a list of all the php code with its description(php code bank). Sorry, I did not find it on Google. If anyone has a link or PDF of it, please let me know. thank you
Dem0n Fa3e
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Object still exists after deletion

Why does a Shape Object still exist after it has been deleted? When I check the Shape Object it is not Nothing and therefore still exists even though the shape is visually deleted from the worksheet. Sub Delete_shpObj_and_Check_if_Still_Exists() …
SweDentan
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Clarification required regarding spark scala Array()

Say, I have a dataframe. Few of the column values in that dataframe is Array() i.e., Array[Nothing]. How can i filter these? because if i don't it will throw error if someone tries to print the dataframe or so.
Suhas Nayak
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Check for null value for value types in VB.NET

I have a KeyValuePair(Of TKey,TValue) and I want to check if it is null or not: Dim dictionary = new Dictionary(Of Tkey,TValue) Dim keyValuePair = dictionary.FirstOrDefault(Function(item) item.Key = *someValue*) If keyValuePair isNot Nothing Then…
Arsalan
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