Is there a way to detect if a My.Computer.FileSystem.CopyDirectory() has failed? It seems that if it fails the copy (i.e., not even space on the destination drive), it just quits and doesn't seem to throw me an error? I already have it in a Try/Catch block, but I'm using that to see if the source directory exists, I'm guessing I should use
[Code]...
How would I detect and show if a file copy failed?
I am using the following to do a file delete: System.IO.File.Delete("C:TestTreeTestLaunch.xml")
The problem is that I do not get any error if the delete fails. My main worry is if the file I am trying to delete is marked read only and the app can not delete it then the user will not know that the delete failed
Also - Any way to see if a copy failed? - I am using the following to do a file copy: System.IO.File.Copy(C: emplate.xml", "C:TestLaunch.xml")
put detect and put a message if this fails?
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If I failed to copy clipboard I would wait 10 seconds and try again. Then it keeps failing.
However, if I try to debug the program or do any human stuff it gets fixed by it self. But I don't want human intervention.
Part ot my program is to simple copy a range of cells ~21 000 rows from one WB (oSH) and copy it to another WB (oSHOut).I've red a lot of posts,tried a lot of variants, but nothing helps..Strange here is that if I copy less than 8500 rows, the paste to the destination range is OK.But if I copy the whole range ~21000 rows, vb.net trigers an error - "Copy method of Range class failed".So I tried to do this in several parts - 1 row to 8000, 8001 to 16000 ect.The first copy-paste works OK, on the secon - there's an error.[code]
View 5 RepliesPart of my program is to simple copy a range of cells ~21 000 rows from one WB (oSH) and copy it to another WB (oSHOut). I've red a lot of posts,tried a lot of variants, but nothing works. Strange here is that if I copy less than 8500 rows, the paste to the destination range is OK. But if I copy the whole range ~21000 rows, vb.net trigers an error - "Copy method of Range class failed". So I tried to do this in several parts - 1 row to 8000, 8001 to 16000 etc. The first copy-paste works OK, on the secon - there's an error
Imports Microsoft.Office.Interop
Imports System.Data.Odbc
oRNG = Nothing
oRNGOut = Nothing
oSH = Nothing
oSHOut = Nothing
[Code] .....
I'm using Visual Basic Express 2010 and SQL Express 2008 in Windows XP. At first I couldn't add a datasource (the .mdf file for the database) because of a "Operating system error 32" which I seemed to have resolved by giving myself full permissions for .mdf file (by right clicking on the file and going into properties and then Security) and restarting the SQL SERVER (SQLEXPRESS) service. The dataset for the database is in my solution explorer but when I right click on a table adapter to add a query and attempt to open up the query builder, I get the error in the title above.
View 1 RepliesI'm using Visual Basic Express 2010 and SQL Express 2008 in Windows XP.I created a database on my local PC HDD. At first I couldn't add a datasource (the .mdf file for the database) because of a "Operating system error 32" which I seemed to have resolved by giving myself full permissions for .mdf file (by right clicking on the file and going into properties and then Security) and restarting the SQL SERVER (SQLEXPRESS) service.The dataset for the database is in my solution explorer but when I right click on a table adapter to add a query and attempt to open up the query builder, I get the error in the title above.
View 10 RepliesI created a typed dataset a day or so ago, then I added a whole bunch of tableadapter/tables with some relationships etc... suddenly out of nowhere it decides my dataset "is not defined". everywhere in my code where i use this dataset now has an error. I tried not to pull out my hair and do a Clean then Rebuild solution... out of nowhere it just refuses to generate code. Object reference not set to an instance of an Object. It would be nice if it was my object so i could find it but it's not.
Curiously I also lost the little database icon on the dataset in the solution explorer.I can still open it in the designer and preview my queries etc... it just wont make the code. it's driving me insane. anyone got a solution?
I got a simple error for establishing a connection.The database is 'Nwind.mdb'.The code is very small, I know that it is a username issue. The default user is "Admin". The error is "Login failed for user '' after I clicking a button.
Imports System.Data.SqlClient
Imports System.Data.OleDb
Imports System.Data.Odbc
[code].....
My problem is I'm am trying to connect to a db2 table but no matter which connection type is use (adodb, oledb, db2) I keep getting the same error message when I get to this statement: objConn = New (adodb, oledb, db2).connection. "Property evaluation Failed".
View 7 Repliesode if I/m wrong i cannot save my file im using sql server 2005
Imports System.Data.SqlClient
Public Class Form1
Private cs As New SqlConnection("Data Source=GSM-DB6CB13C69E;Initial
[code].....
I just lost 1/2 hour of work when VB IDE suddenly lock up in a loop. I thought no big deal, I have it setup to autosave every 3 mins. It would have backup up at least 10 times. Killed VS via task manager. Brought VS backup. Went into my project and I am back where I was 1/2 hour ago.Is there a way I can still recover my work so that when this happens in the future I can recover lost work?
View 4 RepliesI am running Visual Studio 2008 on Vista Premium sp1, and when i'm trying to add to a form :COM Component "Microsoft Spreadsheet .." then i get this error:
< Failed to create component 'AxHost'. The error message follows:
'System.AccessViolationException: Attempted to read or write protected memory. this is often an indication that other memory is corrupt.
at System.Windows.forms.design.documentdesigner.axtoolboxitem.createcomponentscore(idesignerhost host)
at system.drawing.design.toolboxitem.createcomponentscore(idesignerhost host, idictionary default values)
at system.windows.forms.design.oledragdrophandler.createtool(toolboxitem tool, control parent, int32 x, int32 y, int32 width, int32 height,
boolean haslocation, boolean hassize, toolboxsnapdragdropeventargs e)' >
I have this code in my class file:
Dim f As Font = New Font(Font, IIf(m_Selected And m_FontBoldOnSelect, FontStyle.Bold, FontStyle.Regular))
And says
Overload resolution failed because no accessible 'New' can be called with these arguments:
'Public Sub New(familyName As String, emSize As Single)': Value of type 'System.Drawing.Font' cannot be converted to 'String'.
'Public Sub New(familyName As String, emSize As Single)': Option Strict On disallows implicit conversions from 'Object' to 'Single'.
[Code] .....
Error:
Option Strict On disallows late binding.
and then some
pnlBottom.Height = Me.Height - (pnlTop.Height + IIf(m_TopSeparator, 2, 0))
Error:
Option Strict On prohibits operands of type Object for operator '+'.
I am getting two errors
1) Cannot publish because a project failed to build.
2) An error occurred while signing: SignTool.exe not found.
Regarding #1, I can manually build and rebuild the application without error. I only get this error when I try to Publish.
Regarding #2, I looked in my SDKv3.5Bin directory and indeed the signtool was not there. In fact I only had 3 files (genasm.exe, genasm.exe.config, and hidpi.res). I copied the signtool.exe from the Visual Studio 2005, (file dated 10/26/2006), but I still get the same error saying it can not find the file.
I'm currently upgrading my sql server from 2005 to 2008 enterprise server. I used VB to connect to the database. It worked fine in the previous version of sql, but when upgrading it seems doesn't recognize my connection string.
Below is my connection string:
myConnection = New SqlConnection("server=RAVY-PCRAVY;uid=;pwd=;database=CIEDC");
myConnection.Open();
Where Ravy-PCRAVY is my server name at the sql server login dialogue box. And I used the windows authentication mode.
I am getting an error - "Failed to convert parameter value from a String to a Int32"
Background Information:
Table: Customer
Fields: CustomerID, Title, Forename, surname, street, town, country, postal code, home phone, mobile phone, work phone, email.
All the data types in this are Strings with the exception of CustomerID.
Table: Country
Fields: CountryID, Country
CountryID = Integer, Country = String
There is a relationship between country.country and customer.country. I have made country a combo box with the contents of country inside it. This problem is resolved if I remove country as an input - but I need it in!
VS 2008 Failed to create InternetFavorites.snk Access is denied?
View 8 RepliesVS 2008 Multi Thread Overload resolution failed
View 10 Replieswhen saving the "conversion failed when converting datetime from character string" is displayed.
Private Sub BtnSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BtnSave.Click
Try
Dim cn As New SqlConnection(ConnectionString)
cn.Open()
[code]....
Suddenly today , when I started my computer and went on to open the VS , I got this strange message: Do you know what it might mean ? I didn't installed anything on my PC for a long time, so I can't think of anything ...
View 8 Replieserror details :"IErrorInfo.GetDescription failed with E_FAIL(0x80004005)."on googling i found that it is b'cse of key word
Private Sub Butn1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim CrewCri As String = Replace(Me.cbo_enroll.Text, "'", "")
Dim ExPeriOd As Integer = Me.cbo_extractlimiter.Text
Dim socT As String = Me.cbo_sections.Text
[code]....
I get a strange error when I am dragging tables from the server explorer into the datasetSome updating commands could not be generated automatically. The database returned the following error:Failed to find or load the registered .NET Framework Data ProviderI never had it before. I reinstalled .NET Framework 3.Some specs:
Local SQL Express 2005
Windows authentication
Visual Studio 2008
[code].....
I'm trying to compare something the user sends to a listview(first column) to see if it can find a match using [code] and if it equals true the program requests a password if its false it returns the noturous "failed to login"
View 2 RepliesI have a sql select statement with something like:
select...
where column in (@Parameter)
In VB code a set parameter.defaultvalue to "65555,67803", But i get an error "Conversion failed when converting the nvarchar value '65555,67803' to data type int."
Is there a way to detect if a object is over an other, and then do an action?Eg:There's a label and a picturebox.When I change the label's location it goes on top of the picturebox.Is there a way I can detect it, so that once it's on top of the picturebox I show a messagebox or so?
View 2 Repliesi dont want my local ip..its a remote computertheres diferent ranges in the ips but from where i am looking for the ip im connected to the same network..lets say my ip its 10.31.47.54 but the one i try to see if its one its the above....but its behind a firewall..i know its on...but when i ping from my code
View 22 RepliesHow to detect USB Drive (Stick) when plug/unplug in real time ?ps like : show drive label in textbox , " if plugged text1.text = E: " and " if unplugged text1.text = "" " in real tim
View 2 RepliesI have a webapp where a datagridview is populated with records from a database and one of the columns is a download link to download the zip or exe file. We have the zip files on our server, but not the exe files as those are on another department's server. We have all of the file available for download, but if the user as an option selected in a dropdown, those url's in the gridview are re-formatted to be the exe file's on the other dept's server, however they don't have all of them (some 20% are missing) which means if the user click's the link they get their server's 404 not found page and can't download the file.
My PM (Project Manager) is asking me if I can have our webapp detect that the file doesn't exist on their server and instead of them getting the 404 page, they don't leave our app at all and get a javascript popup window or the page is refreshed with a red mark (and a message) next to the link they clicked on, is something like that possible? I have 2 restrictions with this, I can't modify the database because it doesn't contain file paths, it only contains a small portion like (Clinton County, Eaton County, Traverse County, etc..) and the rest of the url is formatted on the fly when the page is rendered, so there's no way to mark the missing files and there's no way we can host the files.
I am using a richtextbox control on my form.I want a small code which can detect if any image has been inserted in the rtb or not.For e.g. user can just type some text or insert image also. Now if we select an image then we can get the type but I want a code which scans contents of rtb and gives me a true if an image is inserted or false if there is none.
View 8 Replies