If I have the following a OrElse b and a is True then clearly b is never evaluated. But if I add an Or, then what?a OrElse b Or c
Does/should c get evaluated? And what if I put in some brackets?Apologies if this is basic. Of course I can test for the answer myself but I can't find this question answered here or elsewhere. Lots of questions dealing with Or versus OrElse but nothing dealing with Or with OrElse
What is the difference between (OrElse and Or) and (AndAlso and And)?Is there any difference in their performances, let say the correctness benefit?? Is there any situation that I shoudn't use OrElse and AndAlso?
View 4 RepliesI'm having problems with the following Linq query (demandNb is a filter option, as a string):
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My goal is to get all demands for the database if the filter fields is empty. If there is a filter, the function should return all demands that match the filter. Currently, when I try to convert the IQueryable collection to a list using .ToList(), the following error is thrown: Conversion from string "" to type 'Double' is not valid.
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I have a DGV to filter and i need the outcome of this as a filter string which i can use to filter my BindingSource:
Try
Using connection As New SqlConnection("Data Source=.SQLEXPRESS;AttachDbFilename=D:ProjectMWMachineWaleMachineWaleDatabaseMW.mdf;Integrated Security=True;User Instance=True")
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Okay I downloaded ILmerge hoping to get my .exe file combined with my .dll files but when installing ilmerge I am not sure what to further do from there as there were no instructions anywhere of my knowing on what to do after installation. All I want to know is how to use it after installing it. (Using VB 2010) framework 4.0
View 2 RepliesCode to generate 10 integers randomly between 1 and 50, and still be able to tell which is maximum and minimum
View 7 RepliesI am filtering a Datagridview with combined help of 4 textboxes and 4 comboboxes each dedicated to a field in DB. All i know about this process is i can combine two or more filters but how do i check at a given time, whether which of these (cb & tb) have been used already to perform the filter already and then collect all the instances and perform the collective filter.
View 12 RepliesForgive me for being a twit! I am thought I was combining csv file with excel file in different worksheets. I have used the copy and paste functions to combine my csv file with excel file. But..the csv file seems to copy over the login data I have stored in Sheet 1. Can anyone spot why? I thought I'd finished....just a few more tweaks away.
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I've got a database like this (Below)
What kind of SQL Query do I need to show all those tables combined inside one table?
I have a Datagridview cell with some text in. I'd like to make just 1 word of this text into a link that will open a website but keep the remaining words as normal.
View 1 RepliesOK I am working on a windows service that monitors specific directories and checks to see if a file is changed. If a file is changed, it is attached to an email and sent to an admin.
The way I solve the problem...
I create a FileInfo object to do the following:
-I check to see if the file has an extension that is allowed to be attached
-I check to see if the file is under a max size to be attached
I create an Attachment object to do the following:
-attach the file to an email
I then send the email. The problem with this is when I edit the file after it is successfully attached the first time, I CANNOT save changes to that file. I get an error message saying that it is being used and cannot change it. My solution to this problem is to call the "dispose()" method of the attachment class. When i do this, I can edit the file all I want to and the first attachment works but after that the "dispose()" method always throws an exception and the file is never attached to the email when the file is edited again. Why is this happening?
Asking for little guidance again... For my custom control, I grouped some properties in some class. Then in the main control code, I use:
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I am working on an existing vb#.net 2008 windows form application that has a large number of project files in one solution. This solution can be executed many ways depending upon what the startup project is. However there is one project file that is generally the main 'startup project'. This application also has no setup and deployment currently.
What I am trying to do is to determine what exes, dll's, config files are needed to be combined together so I can deploy them? Is there certain directory paths I can use to determine what files I need? Is there some kind of a way I can test the combined files to determine what files work together so I can deploy them?
I have a number of text boxs that gather data and put it in a combined string in a rich text box that displays all of the collected data. Some of the text boxes require data pasted from other sources however when that data is then copied from the rich text box to the clipboard through a routine, it loses its formatting. home to maintain the original formating?
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I am sitting with a situation that I have to combined (3 years) for 26 site of 29000 database files where there is 1 table in each data base called RECDATA, I need to combined all that data Into one database file called RECDATA.
For example there is a database called DB1 with a REDATA table inside it, and then DB2 with a RECDATA table inside it, DB3 with a RECDATA table inside it est. So I need to put all the Recdata into 1 Database file, or to copy all the RECDATA from all the database files to 1 RECDATA they all have the same columns All I need is to get all that data into 1 RECDATA table.
The program where this database comes from is a voicerecording system creating a new database every day. There is 1 database just for indexing (to view the recordings) and then the daily database is where the recording lies in, that Colum is called RECFILE. I will give you a example of the 2 database.
What is difference between "Or" and "OrElse"?
If condition [ Or ] condition [
Then ] [ statements ] End
If
My doubt is about OR and ORELSE. There is any situation where OR is better to use than ORELSE ? And if not, why they don't just "upgrade" de internal code ?
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