|
by: Maciej Sobczak |
last post by:
Hi,
I have a string.
This string is to be used as a path for a new file.
I would like to check if this string *could be* a valid file name,
*before* I try to create the file itself.
In other words, I would like to know whether some string violates the
underlying OS's policies (or maybe some more restriced policies, but
portable) considering file paths.
|
by: |
last post by:
If I need to check if a certain value does exist in a field, and return
either "yes" or "not" which query would be the most effestive?
|
by: Jonathan |
last post by:
I am looking for a simple way to check if a database table exists. I
keep getting advice to use "Try.. Catch" and other error handling
methods, but I obviously don't want to have to display an error
message and stop the process every time someone loads the script after
the table is created because that would mean the page could only ever
run once which of course not the solution I was looking for. I simply
want to know how I can check...
|
by: steve lord |
last post by:
Greetings all,
I have a macro that should add a column to a table if the column doesn't
already exist. Using the macro condition, how can I test for whether a
specific column name in a specific table exists?
TIA for any help,
Steve Lord
|
by: perspolis |
last post by:
I have 3 columns in my datatabel name Total,unit,Price.
I use a column expression in my project..and in this
expression i multiplied two column...
for example MyTable.Columns.Expression="Price*Unit";
but when i want to update my datatable an exception arise and
says can not update computed column...:(
how can i do this???
|
|
by: Carl Fenley |
last post by:
I am successfully adding stored procedures to an Access database. However,
I need to be able to check if the stored procedure of the same name already
exists.
Is there a way to do this other than waiting for the OleDbException caused
when adding one that already exists?
Here is the code snippet:
Private Sub CreateStoredProcedures()
|
by: John Salerno |
last post by:
What is the best way to check if a file already exists in the current
directory? I saw os.path.isfile(), but I'm not sure if that does more
than what I need.
I just want to check if a file of a certain name exists before the user
creates a new file of that name.
Thanks.
|
by: shaynenash |
last post by:
I wrote this script to calculate if water restrictions were in place if it was hotter than 25deg C. It has turned out to be a pretty good weather widget that can be used elsewhere. This was initially written for Northern Midlands Council in Tasmania, Australia. I wrote this for Internet explorer and haven't tested it elsewhere. It would probably work better if it used XMLHttpRequest Object, I think I will try this next time. Let me know what you...
|
by: qwedster |
last post by:
Folk!
How to programattically check if null value exists in database table (using stored procedure)?
I know it's possble in the Query Analyzer (see last SQL query batch statements)?
But how can I pass null value as parameter to the database stored procedure programattically using C#?
Although I can check for empty column (the following code passes string.Empty as parameter but how to pass null value?), I cannot check for null value...
|
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...
|
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,...
|
|
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...
|
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 most users, this new feature is actually very convenient. If you want to control the update process,...
|
by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
|
by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
|
by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
|
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.
|