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by: Chris Connett |
last post by:
I have an interesting problem with eval().
---Background Info---
The program I'm working on launches a separate process with a popen to
do some highly specialized processing of input, then this process
leaves resultant data structured in files, in python syntax, at a
known absolute path, which is then read in, eval()'ed, and processed
further. It works fine when there are no errors in processing by this
external program, but when there...
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by: VMI |
last post by:
How can I validate a null string or an empty string in the same IF
statement?
If I use this:
if (myString.Trim().Length <= 0 || myString == null)
{
//do stuff
}
I'll get a run-time error because I can't trim (or get the length) of a Null
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by: Dan Bass |
last post by:
which one do you use and why?
MyString == null || MyString == ""
vs
MyString == null || MyString.Length == 0
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by: M D |
last post by:
You know how you assume you know until you find out you don't know.
Well, I typed into a function definition "..., new String("")).
I know what I want. Everyone reading this knows what I want. However,
the 1.0 compiler has no idea what I want.
Can anyone share with me the syntax that will actually communicate the
concept to the compiler, please?
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by: Adam Knight |
last post by:
Very basic question!!
How do i check for an empty string in vb.net?
Ie:
If(e.Item.DataItem.Item(3) ?) Then
End If
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by: Tan |
last post by:
I am using ObjectDataSource bind to DetailView which will contain one of the
column with the value type is date. whenver the value of this column is
empty . then it will be display the date in the format ( 01/01/0001), How
can I convert it to empty string or just string?
Thank you very much
tan
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by: shapper |
last post by:
Hello,
I need to check if a string is empty.
Should I use:
String.IsNullOrEmpty(MyString) or MyString Is Nothing?
What is the difference?
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by: tomlebold |
last post by:
Are the following two validation the same:
1) IsNull(Me.ColumnName) and Me.ColumnName = ""
2) Me.ColumnName """
It would seem to be better to use: Me.ColumnName """
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by: lphang |
last post by:
I am reading a simple text file that will contains three set of string values
as follow:
"1234567", "ABC123456", ""
I have my codes as follow trying to check for an empty string, with the input string as above, I can never get it to display "testid is empty", Any idea why the test failed?:
FileData = open(filename, "r")
Filecontents = FileData.readline().strip()
FileData.close()
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by: Jay |
last post by:
For a column that contains a string (let's say varchar), is there any
performance advantage in not allowing nulls, and using an empty string ("")
to instead?
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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...
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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 synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
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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...
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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...
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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...
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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();...
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by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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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
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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 effective websites that not only look great but also perform exceptionally well. In this comprehensive...
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