This problem makes it so that when I view the data, any fields with text are blank - only integer values show.
Code:
Dim PathToCsvFiles As String = "\\umpqua\companies\shared\MLImports\"
Dim FileName As String = "Strategy.csv"
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Also it is pipe delimited so I have a Schema.ini
[Strategy.csv]
ColNameHeader=True
CharacterSet=ANSI
Format=Delimited(|)
I have a problem with Oledb connection when I am trying to open an Excel spreadsheet:
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This piece of code works well on one computer, but on another the IMEX=1 doesn't seem to work, and the Jet seems to read the first few rows of the Excel spreadsheet that are numeric and decides that the whole spreadsheet is numeric, so it ignores some String values later in the sheet.
I want to see if try cast can convert user entered answer to the type I have specified. Here's what I have: Dim t as type = GetType(myType) Dim ans = console.readline() If TryCast(ans, t) <> Nothing Then ... 'Doesn't work` In the example above the intelisense doesn't even show t. How to make it work?
View 4 Repliesi have to modify an asp.net application. The app consists of an huge gridview with lots of javascript, controls and cell modification (color cell etc.) in it. Now i have to modify the gridview to add some more colums. Lot of code is based on identifying a cell based on its index e.g. row.Cells(1). Is there way to optimize this behaivor? I dont like the thought to add a colum in the middel and then increment all indeces to match the new positions.
View 1 RepliesMy program reads a 3rd party .txt file using OleDb and reads the file into a datatable. It's overall working fine except a user will occasionally have a problem reading a file. At this point.
Line that gets hung up
Try
Dim comm1 As New OleDbCommand("SELECT * FROM " & safeFileName & " Where " & Status & " = '" & StatusClosed & "'", con)
Dim dasold As New OleDbDataAdapter(comm1)
dasold.Fill(dtsold)
AddColsold()
[Code] .....
It can not retrieve a date for one of the fields, then gives error and does not get dates for each records after the one it gets hung up on but the date is in the file. If I open the file in excel and play with the column sizing, for instance just autoformat column width then it read the date and will work fine. I have looked at the file in notepad and cant see anything wrong in particular on the record it gets hung up on. I have no control over the .txt file since it comes form a 3rd party.
I have this program that uses OLEDB connection to import excel file to data table then use it in other functions.Now I have this question: What are the possible limitations of OLEDB when it reads the Excel file. The File is on xls format, and I want to know if there is such limitations(for example: It has limitation in reading value on a cell).
View 6 RepliesWe're converting a Classic ASP site to an ASP.NET site. One function was to upload a 'template' of data in CSV format for importing into the database. There were several different record types in there (the first field always indentifies the type of data).The task was to get the CSV into a DataTable so it could be validated (new project is to have MUCH better validation rules)
The code seemed pretty straightforward - watered down (taking out comments, Try/Catch, etc) it is as follows:
Dim da As New System.Data.OleDb.OleDbDataAdapter
Dim cn As New System.Data.OleDb.OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & strDirectory & ";" & "Extended Properties=""Text;HDR=No;FMT=Delimited;""")
[code]....
The DataTable (dtData) is populated, but only starting with the second line of the CSV file DESPITE the fact that "HDR=No" is in the connection string.
Is there a way to handle quotes with a field in text tab delimited file example:"This program works "really" nicely and is helpful" my reading and understand thus far is that while the file is tab delimited fields can also begin and end with quotes. Therefore is a field contains a quote it gets interpreted as end of field.[code]
View 9 RepliesIve created a few in-house applications using Access, such as an IT Ticket tracking database and a database to store legal case logs, but finally found a project that I knew would completely out-grow Access and Im trying to incorporate my previous knowledge in to Visual Basic/Visual Studio.That being said, do any of you have any suggestions for intermediate-level reading material or tutorials, especially on how SQL Server and Visual Studio mix together? I've picked up a copy of Sams Teach Yourself Visual Basic 2005 in 24 Hours, which isn't too bad but I've had to skip around quite a bit because I'm already pretty familiar with the interface, I just need some more assistance with the code. I've also purchased Murach's Visual Basic 2008, but I haven't cracked that one open yet.At any rate, I look forward to talking with you all.
View 1 RepliesI am trying to read some data from an Excel 8.0 worksheet using OLEDB thusly:(Warning - contains curly braces)
Code:
DbProviderFactory factory = DbProviderFactories.GetFactory("System.Data.OleDb");
using (DbConnection connection = factory.CreateConnection())
{
[code]....
The problem is that for some columns it sets the data type to be Double even though the spreadsheet column format is "Text" and teh column contains non-numeric data. Then when it gets to that cell it returns DBNull instead of the text value.
this is strange, I've got a macro with an array containing several registry keys.
And I want to insert the values of these into predefined bookmarks in a Word document. This works great if the key is there, but if it isn't, I want the code to skip that and continue trying the next one in the array. I've got the code that looks like this:
[Code]...
We have an IT Management System that we built in house and it scans all of our computer to get hardware and software information.One of the key bits of information it used to report back was Computer Manufacture and Serial code (although didn't work on every machine). We achieved this by running an external utility (PCPBIOS.EXE) and reading in the results to get the information we required. However this tool does not run on x64 bit machines.
I tried searching for a x64 bit version of PCPBIOS and there doesn't appear to be one so I was wondering if anyone can point me in another direction. I know there is WMI but from what I have been reading online this does not provide the SMBIOS information correctly. If this is not the case I could get WMI working for that (we are already using WMI for other information).
I am having dataset with 5000 records.I am reading them in the below 2 functions and writing to excel.
FillDataRows1(worksheet)
FillDataRows2(worksheet)
private sub FillDataRow1(byval ws as worksheet)
[code]....
When I create thread also it is taking same time .
Just wondering if i might hit a snag in my program. Ive got 10+ users using the same files, via a Oledb to put info into an excel spreadsheet. If 2 or more people save there file at the same time will the program go into read only on one person. Normally one 3 will use the file at one time. I know Sql itself would be better to use. best way i can describe it, normally using excel if you manage to open the same file twice one opens as normal but the other opens as a Read only file, will the same thing happen if im using Oledb connections?
View 2 RepliesI have a class with a Property called 'Value' which is of type Object.Value can be of any type, a structure, a class, an array, IList etc.My problem is with the setter and determining whether the value has changed or not.This is simple enough for value types, but reference types and lists present a problem.For a class, would you assume that the Equals method has been implemented correctly, or just assume that the value has changed every time the setter is called?If I did assume it's changed, then perhaps I should assume it for value types as well, so that the behaviour is consistent.
View 2 RepliesI need to compare two dictionary values if the types stored are equal, this is what i have
if gettype(Args(key)) = gettype(argtypes(key)) then
'' do something
end if
[Code]....
I am trying to change the background color of a tooltip
I am using tooltip.backgroundcolor = color.colr
No errors but thecolor doesn't change
I use Visual Studio 2003, VB.net, NetFramework 1.4 and Windows XP I have been using the following Code Snippet for a number of years in both Web Services and Windows Applications. However suddenly around the 29th September 2010 it has stopped sending E-Mails from both Web Services and Windows Applications. The same problem has happened not only to my own Network but on two other Networks, one using XP as its Server and the other using Server 2003. All 3 of these are using different ISPs.
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The form is an About Us form so has nothing on it only a text box and a OK button.
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Why won't the button close the form? I'm puzzled, I tried another button just in case with the same result. UPDATE: I set a break point on Me.Close() and it isn't reaching it when I click the button, I created a new button and the same thing happened.
I am working on a project in VB 2008 and need it to do this:Read first line from text file (using Openfile)Enter line into textbox on formDo some other codeThen Read second linefrom text fileEnter line into same text boxand loop until we have gone through text fileI am not sure how to read line by line from text file then enter it in textbox. I can open the Openfile and get the filename and everything, but I just am not sure how to read from it or enter that line into the textbox.Here is what I have, its not much but its a start:
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim FileReader As StreamReader
[code]....
All I want to do is get a value from the database and display it via a message box.
I'm using Oracle 10 with VB 2005.
[Code]...
whenever i try to run my program i keep getting this one error:[IMG]http://i54.tinypic.com/2n8u815.png[/IMG]it works fine in college but on my laptop at home it doesnt seem to work :(does anyone know whats wrong with it and if theres a solution for it?
View 1 RepliesI created a database program when I used Windows XP and now I'm using Vista x64 When I try to run my program I get error message "Microsoft.ACE.OLEDB.12.0-providers not registerd on your computer. I have looked for solutions everywhere but the only thing I found was for Visual Studio.
View 12 RepliesIve got my code, it add the data but not how i want it, when i add row i wnat it to go to row 1,2,3 and so on but its adding the data to say cell 5000, 5001 and so on. any way to get it go in at number 1 and 2 and what not. Now.month shows as a number how can i get it to reference it as a name so 10=Oct. and can i use it without referencing it into a textbox.
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This is my first time inserting into a database using oledb and the with method. first there is a problem with my 'newrow' . iam getting an erro that says says object not set to an instance.Then there is my connection object.stuck.[code]
View 2 Repliesi wrote a module of a connection to DB with OleDB and the 'sub UpdateClients' doesn't work, the DB don't update.what's missing or wrong?this line -> "daClient.Update(dsClient, "CLUB_CLIENT")" -> dosen't work (sorry about my english, i'm not so good)the database doesn't update after this line (like i expected) what's missing in my code? i want that my DB will Update. "txtid" will be in "ClntId" from my tables.
Module mdlDB
Const CONNECTION_STRING As String = _
"provider= Microsoft.Jet.OleDB.4.0;Data Source=DbHalf.mdb;mode= Share Deny None"
[code]...
I've been using Visual FoxPro for the past 10 years, and am trying to learn VB.NET, (using VS 2008). I am in the process of re-writing a small VFP app in VB.NET, and am using the VFP DBF tables, (via OleDb). It is a real struggle for me to comprehend all the levels to keep track of and was wondering in anyone knows of some sample code that would point me in the right direction. After I complete this small app re-write, I have others to do that all require the VFP DBF table updates.
View 4 RepliesI can retrieve records from my Database fine, but I'm having trouble updating records. I am getting a syntax error on VB da.Update(ds, "Personnel")
View 5 RepliesI'm having a problem with accessing the OleDB in VB 2008. It comes up with this error: "Could not load file or assembly 'System.EnterpriseServices.Wrapper.dll' or one of its dependencies. The check of the module's hash failed." All my other projects used to work fine, now none of the projects work and it comes bumping when trying to connect through oledb.
View 5 RepliesWhen I am using an OleDBConnection to read a CSV, I notice something strange When the datasource (folder) of the CSV has a number in it, it will ALWAYS skip the header record, regardless of whether HDR=Yes or HDR=No
Dim conn As New OleDb.OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + input_path + ";Extended Properties='text;IMEX=1;HDR=YES;FMT=Delimited;ImportMixedTypes=Text'")
Dim command As New OleDb.OleDbCommand("SELECT * FROM [" + input_csvFile + "]", conn)
Dim da As New OleDb.OleDbDataAdapter(command)
da.Fill(input).ToString()