VS 2008 .DBF Connection String - Invalid File Path?
Sep 21, 2009
Dim dbconn As OleDbConnection
Dim DBCommand As OleDbDataAdapter
Dim DS As New DataSet
dbconn = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:COLORsitedataCUFORHDR.dbf;Extended Properties=dBASE IV;")
[Code]...
I prefer SQL server but im afraid in this app I have no choice. I think the .DBF file is v III dBase according to a thrid party .dbf viewer. The code explodes on the DBCommand.Fill(DS) line, telling me I have provided and invalid file path. The path is good to go.
Should I be using a driver with a different provider? When I remove the Extended Properties parameter I get an error unrecognizable database format - hinting in this case the path is correct.
I'm facing a problem after installation any software setup that has a database in access(mdb file) How to I transfer file path in our connection string.
Before I explain, the connection string I am trying to use is copied directly from elsewhere in the application that has always worked and still does. Provider=Microsoft.Jet.OLEDB.4.0; Data Source=|DataDirectory|cdb.rmd; Persist Security Info=False;
My problem is that no matter if I go to "Server Explorer", "Data Sources", or any other option it will not let me add a datasource/database. Up to this point I have done everything at runtime but now due to reporting issues I need to create a dataset in design view.
This is what happens: I click "Add connection..." I choose "Microsoft Access Database File" (Which it is...) I click "Continue" Form shows up with a field for my connection string, which I insert (shown above). I click "Ok"
I get the following error: Format of the initialization string does not conform to specification starting at index 0. The "Test Connection" button is apparently useless as the connection passes even if the field is blank.
I have attempted reducing the connection string to only what is absolutely necessary. I have copied the string directly from connectionstrings.com replacing my filename. I have renamed the file to an .mdb extension. I have used the full path from C: all the way to the file.
I'm developing an app in vb.net (visual studio 2008). I have a Teradata back-end that will be supporting multiple users in a production environment. I need to use variables in the connection string as the user/pass will be changed every 3 months.
For the gist of the application:
In it's most basic form - I have a search form which works correctly - it pulls results into a listbox and the user then double clicks the list box which will then open a form that is bound via table adapter to the back-end table (Teradata). My connection string is fine everywhere in the application. My problem is using a modified connection string for the "fill" function of the table adapter once the form is opened.
I'm using the code below for the on-load event and keep getting an "invalid connection string" - again, the connection string works fine everywhere else in the app, and the variables etc... are working correctly.
Private Sub adaptertest_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Dim DBConnStr As String = "Provider=TDOLEDB;Data Source=TDDEV;Persist Security
I'm creating window application with VB.NET and flatfiles.the problem is how do i store the connection string in the app.config file that include the application.startup path?
I'm trying to use variables in my connection string to a table adapter. The only clean cut method I've seen is the following, however, I'm getting "Invalid Connection string" upon run-time. I'm assuming maybe this can't be done?
Private Sub adaptertest_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load 'TODO: This line of code loads data into the 'BCPM_DDBODataSet.LTC_FBS' table. You can move, or remove it, as needed. LTC_FBSTableAdapter.Connection.ConnectionString = "Provider=TDOLEDB;Data Source=TDDEV;Persist Security Info=True;User ID={0};Password={1};Default Database=bcpm_ddbo;Session Mode=ANSI;" Me.LTC_FBSTableAdapter.Fill(Me.BCPM_DDBODataSet.LTC_FBS)
I thought I was done with the tree view control until i realised that my tree view control was behaving differently when it came to sub nodes . I have attached my treeview pic and also a sample tree view.
(-)D: |_config.msi |_netfile.sys
[Code]....
Since I clicked on subfolder1 i was expecting the msgbox to display D:Folder1Subfolder1 but unfortunately the msg box doesnto even have the name of the node i clicked on but when i use selectednode.text I get the correct node text. Anyways why isnt my full path working. I then tried manually designing the entire scenario using tree node editor and the code which i mentioned above works. But whenever i populate the trr programatically the above problem starts.
I'm using Microsoft Visual Basic 2008 Express Edition. I have a Folder Dialog Browser added in my form and I call it when the user presses a button. The folder path string is stored in a string variable and displayed as text in a text box. (maybe I should use a combo box)
My question is: If the user inputs by hand a non existent path, how do I return an error message, stop the file creation into the invalid path, and return to my main form?
Possible Duplicate: SQL Express Connection string - Relative to application location
I have a desktop application written in vb.net. The app uses an SQL Server express 2008 database (.mdf file).Currently i have the connection string as absolute path like this:
Dim ObjConnection As New SqlConnection("Data Source=.SQLEXPRESS;AttachDbFilename=C:UsersPantheoDocumentsVisual Studio 2010ProjectsFood Manager 2012(new)Food Manager 2012Food_CustomerDB.mdf;Integrated Security=True;User Instance=True")
Possible Duplicate: SQL Express Connection string - Relative to application location I have a desktop application written in vb.net. The app uses an SQL Server express 2008 database (.mdf file).Currently i have the connection string as absolute path like this:
Dim ObjConnection As New SqlConnection("Data Source=.SQLEXPRESS;AttachDbFilename=C:UsersPantheoDocumentsVisual Studio 2010ProjectsFood Manager 2012(new)Food Manager 2
I want to read a tab delimited file so i set up a data reader with the following connection string: [Code] However when I do this it doesn't seem to delimiter at the tab characters (I cannot work out why it is breaking up the data where it is). the first few lines of the csv are in the attached "dbamstr.txt" - the select statement I am running is: "SELECT * FROM dbamstr.txt".
I want to connect to a UNIX file path over our network and grab some .log files. Is this possible? If some do I need to do anything more than what I would do if I was opening files from a local path?
I've been all over the help files and finally patched together a VB OleDb connection string for delimited text files:
Dim connection As String = "Provider=Microsoft.Jet.OLEDB.4.0;" & "Data Source=" & fName & ";" & "Extended Properties=""text;HDR=YES;FMT=Delimited"""
"fName" is passed in by an open file dialog.In every case (for all paths) it throws: 'C:1_2010NormalFileNormal.csv' (or where ever it is pointed) is not a valid path. Make sure that the path name is spelled correctly and that you are connected to the server on which the file resides.Since no path works, it must be a syntax error, but I'll be darned if I can see it.
Full code of this routine is:
Dim connection As String = "Provider=Microsoft.Jet.OLEDB.4.0;" & "Data Source=" & fName & ";" & "Extended Properties=""text;HDR=YES;FMT=Delimited""" Dim conn As New OleDbConnection(connection)
I have created a data source connection to an access db by using the wizard in vs2008. I have then used this as a data source for crystal reports. My user would like to put the database on a network and reference it there. Is there a way to set a new path for this data source during runtime?
I have shared a folder from another server to th eone am running the executable file. [Code]. I receive the error at the highlighted text. Thats the other server where the shared folder can be seen in the server am running the executable file. why I receive that error? The given path's format is not supported.
How do I assign a My.Settings.Item connection string to cmd.Connection connection string value?
Dim cmd As New SqlCommand() cmd.Connection = My.Settings.Item("csStaffHoursWorked") cmd.CommandType = CommandType.StoredProcedure cmd.CommandText = "spSaveDeltekImport"
I'm using WMI code and VB 2008 to see NIC status. So far the queries are working, but the methods aren't. For example, I'm trying to set a network card to use DHCP, I get invalid function with this code:
Dim classInstance As New ManagementObject("rootCIMV2", "Win32_NetworkAdapterConfiguration.Index='7'", Nothing) Dim outParams As ManagementBaseObject = classInstance.InvokeMethod("EnableDHCP", Nothing, Nothing)
I get an "augmentexception was unhandled" error whenever I run this script. The string assigned to "location" is fine, in fact when I paste it to the clip board and replace the "location" string in the ReadAllText() it works fine. Any suggestions? I assume this is a super easy fix but I've been at it for quit a while with no luck.
Code: Public Sub OpenQuestions(ByVal questionreturn As String) Dim Qraw, location As String
The reason I ask is that I want to print, at run-time, a file in the application's resources, like this:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim printProcess As New Process printProcess.StartInfo.FileName = "C:UsersGeoffrey van WykDocumentsCountdown_Timer_Help.rtf" ' printProcess.StartInfo.FileName = My.Resources.Countdown_Timer_Help printProcess.StartInfo.Verb = "Print" printProcess.Start() End Sub
The reason I ask is that I want to print, at run-time, a file in the application's resources, like this:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim printProcess As New Process printProcess.StartInfo.CreateNoWindow = True
[code]....
When I use "C:UsersGeoffrey van WykDocumentsCountdown_Timer_Help.rtf" as the argument of FileName, it works. But when I use My.Resources.Countdown_Timer_Help, it says it cannot find the file.
I'm creating a radio streaming application, which plays a live stream from various radio stations in a small 'gadget' like application.
The user can add his own custom radio stations, by supplying a Name, a StreamUrl and, optionally, an Image that represents a logo or something of that radio station.The logo will be drawn on the main form when that station is selected.
I need to be able to save these custom stations, and I think it makes sense to use an XML file, which could then look something like this
<CustomStations> <Station> <Name>Radio 1</Name>
[code]....
Before I added the support for images, this worked fine, how to store the images. I want the user to be able to select any image from his harddrive, but I don't want to force him to keep that image in the same location afterwards. So I can't rely on the path that he selected. Instead, I want to simply load the image from the path he selected, and then save it somewhere else.
I am storing the XML file in the common application data path which I think is a good place for the images too.The problem is, how to determine a name for the images? I will always have just one image per custom radio station, so it makes sense to me to simply have one Images folder that holds all images, with a unique name.I can see two solutions:
1. Generate a random filename for every image
2. Use the Name of the radio station as the image name
For option 1, I suppose I could just create a string of 16 random characters and call that the filename. The problem of course is that there is no guarantee that I will get a unique filename. Yes, the chances of generating the same name twice randomly are very tiny, but it's still possible, and I just don't like that. How can I ensure that my random filename is unique? I suppose I could always drop the whole thing in a While loop that continues when the new filename already exists, but there must be a better way... Is there nothing in the framework that allows me to generate a unique random filename, in a directory of my choice (so not in the Temp directory...)
I like option 2 much better. The Name of a radio station is unique (there can't be two stations with the same name), so I don't have to worry about filenames conflicting. The problem with this approach is that there are no restrictions on the name. There's nothing stopping the user from naming their custom station "Radio~/aij!""_.fe" or something like that, which is obviously not a valid filename... So, I will have to do 'something' to generate a valid filename from the station name. I could simply remove all non-valid path characters from the name, but then I am no longer guaranteed a unique filename... Suppose there's two stations, one called "Radio/1" and one "Radio1", then after removing the invalid "/" character, the names will be the same and so I will generate the same image path for both....
I got this Error Message while I try to preview the records in Dataset Designer:"The connection string could not be found or Data provider associated with the connection string could not be loaded"
Well I've recently discovered that trying to create a file with so-called 'illegal characters' will cause your application to crash.. How do I find these characters in a string and replace them with nothing?
The invalid characters are / : * ? " < > | if that helps.
Reading a .txt file in VB.net. My file path is C:UsersMyLilMulePepeDocumentsVisual Studio 2008Projectscurtain_calls.txt.
This is my line of Dim LoanOptionsFile As String = "C:UsersMyLilMulePepeDocumentsVisual Studio 2008Projectscurtain_calls.txt"
I can read the file when I run the program, but how do I write the file path so that someone else can download my program and file and read the file on their system?
Is there any literature which guides a user through the steps of deploying a vb project created with VS 2010 Professional and incorporating SQL 2008RE Database?
I have a VB project which incorporates 2 databases - 1 Access Db and 1 SQL Db. The project compiles and runs beautifully. However, after adding the databases in the project as existing items and deploying, the project opens/runs, but when I try to login the application I keep getting an error message telling me that the path to the .mdb (Access) database is not a valid path. I don't have a clue what else to do.
I have a Access program and I'm using VBA code in the background to run Winunzip using shell command. Well, the path of the .zip file has spaces in it and it's not recongizing the path as a valid path. Is there a another way to tackle this problem besides the shell?I can't us pkzip either. Has you can see I had to use progra~1 instead of Program Files.[code]
I have classes that get the connection string the the .config file through ConfigurationManager. They work great in the actual application. When I use them in a unit test with nUnit I recieve an 'Object referance not set to an instance of an object'. I also tried to see if nUnit would read a ConfigurationManager.AppSetting and it failed too. Is there a configuration or workaround for this?
