Completely new to ASP.net
Page Language="vb"
Microsoft .NET Framework Version:2.0.50727.3603; ASP.NET Version:2.0.50727.3082
I want to check on the server for the existence of an image, then if it does exist, display the image wrapped in other code. E.g.
if "/images/name.jpg" exists then
<div><img src="/images/name.jpg"></div>
else
Do nothing.
Seems really simple to me but NOTHING I have tried has worked (compilation errors). I've tried examples using system.io, DIM stuff with 'FileInfo', Set fs. FileInfo examples produce 'not defined' errors, 'Set' says it's outdated and not used anymore and so on.
I'm not sure what to use to insert a file that's located on the server into the sql database. I've read a bunch of articles but none of them show how to just grab a file without using fileupload.
I am trying to write(what I thought would be a simple piece of code. I was wrong.
What I am trying to do is to get an application to check if a file exists, However, I have it wrong as the file obviously does exists, but when I run the application it tells me it does not.
Imports System.IO Public Class check Dim checkfile As New FileInfo("C:\HelloWorld")
im trying to make code to check if a file with the same name exists twice in the same dir one with .dds and one with .veh file extentions and if they do put in a listbox but if only one exists then it puts it in another listbox i have made code to filter .dds in to one listbox and .veh in another but i dont know how to make the "check" if they are both there
this is the code i have to split them at the mo
For Each files In dir Dim path() As String = files.Split("\") Dim chunk As Integer = path.Length
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but i wanted the Else for the .dds files that dont have the matching .veh file
I think this is a really simple question to answer but I can't find a better solution. Basically I am importing data from an external source and as I go through importing each for I am doing a for loop to see if the row already exists; this is taking a life time and I feel it is a very simple way of doing it. Is there a better way to see if a row already exists using specific columns and key indexes?
I'm using ADO.Net to work with an Excel Document. Essentially, I'm looking up values in a table called "source" and creating a new table called "result" which will be populated with the results of my query.
I have a couple of questions.A) How can I check if a table exists and create a new one if it doesn't? B) Is a table the same as a sheet in Excel?[URL]...
I haven't used System.IO before, and I'm a little stuck.I need to check if a file exists, for example C:Documents and SettingsverraineDesktopSURNAME Firstname v1.docx, if this file exists the filename has to become v2, and so on. Usually there will only be a v1, but in the case that a clients position changes we have to be able to save the new version without overwriting the old one.
How would I be able to do this efficiently? I'm uncertain to say the least. Because, if I manage to find out how to save the file as a different number, that's alright, but if that next number exists as well? I can only think of ways to do this that require a lot of code.
i have a checkbox on a form, which is of type boolean in the database .when the user check the checkbox, before the data enters the database, the program should check if there exists already a "1" on the database for this field.If so the user is not allowed to check the depot.
I want to check if an Outlook folder exists, if it doesn't then create it & if it does then carry on with other code. I can create the folder as a sub folder of the Inbox but once it is created I get an error because it is still looking to create when it's already created. I have tried to capture the error but still no joy.
I've created the following function and thrown it inside of a timer:
[code]...
It works, but it keeps trying to open media player for each process it looks like. I need to continuously run the function so that Media Player opens when it's closed.how to make sure it opens only once when the process doesn't exist?
If txtGradeObs.Text = "" Or Dir(txtGradeObs.Text) = "" Then MsgBox("Specify the Grade job of Obstructions", vbExclamation, MsgBoxTitle) Exit Sub End If
I get an error if the drive does not exist - i.e. G: rather than C:. It used to work in VB6. How can I get it to work.
I am adding the text of a label into a datagridview. But before i do the insert, i want to check if the text does not already exist in the datagridview.
I have been on MSDN about this and searched but it's not quite telling me what I'm after. I've extracted a list of file names from an Excel spreadsheet and want to check whether they all exist in a directory which a user can select in a text box. It feels like I'm nearly there with it but currently my listbox is displaying everything, I want it to just show the files that are missing. I'm a beginner so I'm not exactly sure if I'm even telling it to compare the two things properly, I've tried a couple of ways of checking if a file exists but neither seem to work.[code]
I have a database created and tables inserted into it. One of the tables is called UserLogin. It consists of two columns, BarcodeId and Technician. I have a barcode value, and what I am trying to do is check if any of the values in the BarcodeId column of this table is equal to the barcode that I have. Then when I get a match, I want to get the Technician that matches that BarcodeId and display the Technician in a text box.
I was using this code sample:
Private Sub HasRows(ByVal connection As SqlCeConnection) Using connection Dim command As SqlCeCommand = New SqlCeCommand( _
[Code]....
I'm not sure if I am on the rught track or not, when the code gets to the line connection.Open during debugging, nothing seems to happen.
I have literally looked everywhere on the internet and i cannot find a way to check if a folder exists on an FTP server. I am using Visual Basic 2010 Express Edition.
How can I check if a file exists on a server? Let's supposed that I want to check if "[URL]" exists. How can I do that?
I tried to do this but it does not work: Dim fso As New FileObject If fso.FileExists("[URL]") Then MsgBox("exists") Else MsgBox("File not found") End If
How can I check if an Image File exists in a Folder?I need something similar to this:If C:***My RecipesNick's Milktart 237.png Exist ThenThe code that goes here is not a problem; I will show it as soon as it works.
What I to do is be able to find out if a text file or any file exists on a server such ass we all know that exists but how can I get VB to produce a message box telling me whether this file exists let alone get VB to search for the file, I've search the site and the MSDN but I cant figure out what code i need to do its been bugging me for weeks
I have a database table where the user marks files to be downloaded. Subsequently, I browse this table and need to create a fileList to pass to an ActiveX downloader. My routine works locally and on the server for ONLY the first file. I know my logic must be bad, but I cannot find it. All of these files are always in the same server directory which is as follows:
"D:inetpubvhostsWebSite.comsessionVideos" Sub (GetFileList) Dim dtVideosSelected As New DataTable
6 program to VB .NET 2008 that had code that used the CDO 1.21 DLL to validate if a mailbox entered existed on an Exchange server. I saw the one posting from Microsoft that states that CDO is not supported on the .NET Framework. As this is a client application, the article recommended using WebDav to interact with the Exchange Server.
My ISP's DNS server goes down all of a sudden sometimes. This is very annoying while surfing the internet. So, I'm trying to make an application which has the following characteristics : Runs in system tray Pings the server periodically Notifies when the server becomes unreachable/active Now, I know that the existing workarounds are to use OpenDNS or ping <IP Address> -t in command prompt. I don't want to use them... the reason being that the former gives much higher pings than my DNS & for the latter, I'll have to switch windows.
Couldnt think of a good name for this post but I tried my best.I have a button which checks with a FTP server if the text in a textbox exists as a file. If it does then form1 opens.Sometimes the connection check times out.So Is it possible to make a small code like this? if form1.show (doesnt show after 10 seconds) then go back to the beggining try again end if
I have started to Build my Server Monitoring/Alarm system and I have built all the components that check network connectivity and internet connectivity etc and alarm if anythingis bad.However I am now struggling to find a way that I can check the following local services are running ok: [code]
I have to insert/update shipper information and I wrote a stored procedure like this:
IF EXISTS (SELECT * FROM sysobjects WHERE name='usp_Nucleus_LSS_AddShipperInfo' AND type='P') DROP PROCEDURE usp_Nucleus_LSS_AddShipperInfo GO CREATE PROCEDURE dbo.usp_Nucleus_LSS_AddShipperInfo
[code]....
I am using VB.Net 2.0 and SQL Server Enterprise edition.
