How can I read data from a .csv file I have opened into a variable for later use (i.e. plotting with zedgraph)? My csv file contains 100+ columns and 12000+ rows of data, with each column a different variable.
I've searched around a ton on this subject, and combined many methods I found on the net to my project but none actually do what I am required to do.
I am trying to split an array into a jagged array for easy manipulation, but I am having a bit of trouble with the Copy method of Array.This is what I have:
Dim masterData()() As String = New String(splitCounter.Count - 1)() {}
For i As Integer = splitCounter(0) To splitCounter.LastIndexOf(splitCounter)
Array.Copy(ServerResponse, splitCounter(i), masterData(i) = New String(), i, splitCounter(i
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I'm having problem when importing data from excel file to data table. the problem is when i debugged and see the items in each row in the data table some data in the column are trimmed, copied from the excel file when uploaded in the data table .
I'm using
Microsoft.Jet.OLEDB.4.0
Extended Properties=Excel 8.0
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I'm looking to pull data off of a webpage that gives the data in comma delimited values.
I want to pull that data off, and I'm sure I'll have to store it in an array.
I am trying to import some data from an excel spreadsheet, using VB.net.my steps are:first the user uploads the file to the server then i want to read the file from the server to then populate a gridview.[code]how can i set the OleDb connection to get the source file from the server instead?[code]i added: Server.MapPath("~/") & filepath and now it works. however, now i'm getting the error:The Microsoft Jet database engine could not find the object 'NSTS'. Make sure the object exists and that you spell its name and the path name correctly.
View 3 RepliesI am importing data from Excel to a datagrid in VB, I can get the data on there no problems and also save this back to a SQL database without any problems.
However I have a new spreadsheet which has the same product listed again and again with the same description but different totals, what I want to do is to upload this to the datagrid just once for each description, with a grand total of all the seperate totals
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The following is the complete coding for an application which I wrote to move data from sql 2000 to MS Access 2003. The coding looks fine to me but I am still getting an error.
Imports System.Data.SqlClient
Imports System.Data.OleDb
Public Class Form1
Inherits System.Windows.Forms.Form
[CODE]...
I am trying to import data from a server and put it into an excel sheet. I have included (imported) the Microsfot.Office.Interop package into my program. I have been looking through the Object Browser to find the correct commands to add this imported data. Should the ListColumns.Add and Listrows.Add functions be used in this spot? I have started a code however, it was initially going to be used with human interaction. The new direction is to make it automated. The section of code I have written follows:
#Region " (Import Data) This function will import the PI Tag Names and desired Attributes into an Excel worksheet "
Private Sub Import()
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After the nvs.Add("changer", 1) there are many more attributes that are going to be added to the excel file but I did not feel they needed to be shown here.
We have a legacy application that is dumping large volumes of data to tab delimited files.Each file contains a single record type and all fields are fixed length.These files can readily be imported into corresponding tables in our SQL server database using the BCP utility from the command line.We have a VB.Net program written in VS 2003 that imports these files using the SQLDMO.BulkCopy routine. We are updating the system to use VS 2010 with SQL Server 2008 and according to the Microsoft documentation SQLDMO is no longer available.I have searched on the internet and have rewritten the import routine to import the tab delimited files into a DataTable using the Microsoft.Jet.OLEDB.4.0 provider. The SqlClient.BulkCopy object is then used to import this DataTable. This issue I am having is that fields in the tab delimited file that are set to spaces are being treating as NULLs when imported into the DataTable. When the DataTable is processed by the SqlClient.BulkCopy the copy fails because the null values are rejected by the SQL table fields that are defined as NOT NULL.Code being tested is shown below
Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click
Dim data As DataTable = RetrieveSourceData()
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I'm trying to import data into a listview and this is the code I'm using:
Private Sub form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim doc As New XmlDocument
[code].....
I have been trying for several months (in my spare time) to write a vb.net (version 2010) program that connects to Excel (version 14) and imports numerical data.This data will be used later for engineering calculations.I have tried the Interop code which I have found on the internet with limited success and now I am trying the connection string method.I have found some examples of code, on the internet,that I have pieced together and can't get it to run.Below is that code.
Imports System.Data.OleDb
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click[code].......
This is a screen image of the error I get when trying to run the program.
I try to import the whole csv file into access table. But I got some data lost.
View 3 RepliesI import txt file and export into datagridview, because too many data need to export, the application may hag for few seconds. So, how can i do in orer to show a msg(using label1) n disable button2 before finish exporting... Can i use timer to do this, but i dont know how to let system know the datagrdview has been importing data n when end?
View 2 RepliesI need to import data from Excel worksheet into the VB.Net program. First, I need to get the data to some array or arraylist and secondly to show the data to user through datagridview or similar.So far, I have this
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim myDataset As New DataSet()
Dim strConn As String = "Provider=Microsoft.Jet.OLEDB.4.0;" & "Data Source=C:TempTest.xls ;" & "Extended Properties=Excel 8.0;"[code].....
How can I adjust the code to manage that? And how can I import the same range to variables (the range contains approx. 200 rows and 30 columns of data points) and I need the flexibility to add or delete items (rows) from the data in memory later.
we're importing a lot of data to sql server from an MS Access db. we're doing it via a vb.net windows form. We open the Access db as a dataset, loop through it and save it to sql server with a stored procedure.
View 2 RepliesI need to be able Import and Export data from my database in the app im developing. I have been having trouble finding the proper way to do this. I have to assume some of the people using this wont have Office installed so this process as to be able to work on its own. Im using Visual Basic Express with SQL server 2008. Using LINQ to SQL with a local database. I would like it to be a simple process for the users.
View 1 RepliesI'm sure this is a common problem but I have been unable to find a good solution anywhere.I am using line.Split to read a CSV file.Unfortunately the data contains strings that have comma's in them like so:
"Singer","Hasselhoff, David",21,15
This results in 5 strings:
Singer
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I am trying to import some data from excel.i am using visual studio 2008 .net 3.5, on win xp sp3 the data that is being imported form excel is being edited somewhere in the import.i am sure it is somthing todo with the olddb connection.the data is coming out like this 6.05708e+008
the connection string goes somthing like this:("provider=Microsoft.Jet.OLEDB.4.0; Data Source='C: est.xls'; Extended Properties=""Excel 8.0;HDR=Yes;IMEX=1"";")
i have tryed change the IMEX value to 0,1 and 2. nothing seems to work. each time the data is imported incorrectly. i am been working on this non stop for 2days and i am getting now where quickly. and my client is going nuts, i depend on this job to pay the rent.
I am reading data from an excel spreadsheet. The column data which i am reading from my spreadsheet reads as follows:
integer
integer
integer
var char
integer
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how can i import system.data.sqlclient globally?
instead of typing system.data.sqlclient in everypage.. i want is to type it once and all pages has now the namespace of the system.data.sqlclient...
I have an xls file that needs to be imported into SQL Server directly from .net. I figured out how to do this, but now my problem is the data. The following data is in the xls file: Name, Address, City, State, Zip, Phone. The phone number can come in in various values(with dashes and without). I have no way of controlling this data because it is an export out of some third party application. My problem is that the numbers with the dashes are being ignored by the Excel import. I am using the OPENROWSET to import.
View 1 RepliesSimple VB.NET project for the purpose of importing the data from Excel sheet into a SQL DB
View 2 RepliesI start with a text file containing information such as this: Monday, Tuesday, Wednesday, Thursday, Friday 12:00:00.1, 12:00:00.1, 12:00:00.1, 12:00:00.1, 12:00:00.1 I made up the values of course but the idea is exactly the same. I need to have an if statement that if the text document has a record of Monday, then it is to put something like an X in the corresponding column in a data table. I'm sure I confused this way more than need be but I hope you get the most of it and I can elaborate if need be.
View 6 RepliesI have a table in my database. I have an import routine which reads rows from and XML file. It first loops through my existing table to see if the row exists using a date and store code column as a unique id. It all works fine until this senario occurs.First file is read in and a new row is added for 01/03/2011, store code 100. The second file is read in which also has a row with 01/03/2011, store code 100. But when I loop through it does not find the row I just added so it adds it again.The only solution I can think of is to re-populate the local table everytime I add a new row but this will have a massive amount of over heads.If I add a row to an existing dataset surely if I loop through that dataset I should come across it.
View 2 RepliesWhat I am doing is iterating through all the groups that belong to the top group (Generic reports). Then I take advantage of the GroupPrincipal.GetMembers(True) which will recurse through a given group name. I test to see if the user exits under that group and if true I put the group name in an arraylist.
I use the for each principal in GroupPrincipal.GetMembers to loop through each returned user to see if they exist.
Is there a way to put all the returned users Principal.Name from a given group in GroupPrincipal.GetMembers into an ArrayList? This would allow me to to use Arraylist1.IndexOf to search for user. Which would be much faster then iterating through a returned list using the for each construct.
Sub RetAllMbrs(strUser As String)
Dim oPC As PrincipalContext = GetPrincipalContext() '<- this is function somewhere else in the code
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I have a problem in Treading.I have a code like this;[code].....
I want to change ListBox1 with ArrayList. But I couldn't find how to use adding a string to ArrayList in tread.
When importing data from excel to vb.net desktop application, Im having "file is open" error. Excel file is at the remote pc. Excel file must open and I have to reach anytime. How can I handle this problem?
View 2 RepliesI am new to VB.NET. How to import data from excel spread sheet into database (SQL Server Management Studio Express 2005) by clicking a button in windows form application using VB codes (visual studio 2010).
View 1 RepliesI have a problem loading big spreadsheets into a datagridview.
I had a similar code as above that i used and it works great if you have say 10000 cells to populate cell by cell.
How ever moving to 2 mil cells is a different cup of tea, the code took more than 7 minutes to load the data, and although the data was perfect in every way, its too time consuming, i cant get it to work faster so I used the datagrid instead.
The sheets needed to be imported is 350,000 cells plus. I used code that works realy great, does the import into the grid and transfers the data to a datagridview within 15 seconds with little resources which put a smile on my dail :) then i saw something and it dropped ...
see code:
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My problem is that whenever there are values below the heading of the cell the datagrid displays (null)
No matter what i do even converting the values in excel to text it does not display the heading of that column.
When i paste other text into the cells below the heading (NOT NUMBERS) it shows the data and heading, Only if the "type" of content is the same does it display both the heading and the text that follows in rows below.
I would like to Import data from multiple sheets in a workbook. With this following code I get the this error: "The MS Jet database engine could not find the object 'Sheet1$' Make sure the object exists and that you spell its name and path name correctly." The name and path are correct, the error ocures in the highlighted statement. The sheet name is Sheet1
[code] Private Sub ExellFrm_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim MyConnection As System.Data.OleDb.OleDbConnection
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