How To Convert CSV File To Datareader
Oct 20, 2011How to convert CSV file to datareader?I google it but only find out how to convert datareader to CSV file.
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How To Convert A Datareader To Datatable
Feb 23, 2012I have a question about converting a datareader to a datatable. In my code, I have a datareader created in one class and passed to another class that I want to convert it to a datatable.
When I do this, it does not seem to work, as the table remains empty. If I do the conversion in the same function, it works fine.
Its only when I pass the datareader to another function that it stops working. Is this because the dr is closed or something? How do I overcome this problem? Any help would be great.
VS 2010 : Create Multi-dimensional Array From Datareader From Datareader?
Feb 20, 2012I have an SQL statement like:
SELECT FNAME, LNAME, CITY from EMPLOYEE
How do I create a multi-dimensional array from a datareader which should store values like:
John, Doe, LA
Mike, Johnson, PASADENA
Freddy, Kruger, Long Beach
Datareader Reading From CSV File?
Oct 21, 2011I try to create a funtion to return a datareader from CSV file as below but got a error said that
ERROR [IM002] [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified(at cn.open())
Public Shared Function GetCSVAsDataReader(ByVal csvPath As String) As Odbc.OdbcDataReader
Dim fi As New FileInfo(csvPath)
[Code]....
Datareader - Error - "there Is A Datareader Associate With This Connection That Need To Be Closed"
Aug 17, 2009I have a problem with my project. here is the problem:
My code for login is as follows:
dim conn as SqlConnection = New SqlConnection("Data Source.................)
dim cmd as SqlCommand = New SqlCommand("Loguser",conn)
cmd.CammandType = CommandType.StoredProcedure
[CODE]...
Now the error i get is that "there is a datareader associate with this connection that need to be closed"
VS 2008 - DataReader In Loop Through Text File
Apr 28, 2011I've wrote a program designed to loop through a text file containing email addresses and unsubscribe said email addresses in our CRM system. I'm having a problem with the following code...
Do While obj_filereader2.Peek() <> -1
strcuremail = obj_filereader2.ReadLine()
Dim dbqCustNo As String = "SQL CODE HERE - SELECT CUSTOMER NUMBER"
Dim exeCustNo As New SqlCommand()
Dim SQLdr As SqlDataReader
exeCustNo.Connection = ConnStr
[Code] ......
The program is falling over when trying to execute the update commands during the datareader loop, with the fabled 'There is already an open DataReader associated with this Command...' error. This program has evolved as I've found problems/better ways of working, so it might be a case of myself just not using the DataAdapter right - I'm guessing I should be using a function of the open DataReader rather than the ExecuteNonQuery command.
Write A Program To Convert Binary Pdf File To TIFF File?
Feb 2, 2010Program to convert binary pdf file to tiff file in VB.NET..?? We can use third party tools also..???
View 1 Replies.txt File Convert To .shp File Using VB 2008 Express Edition
Mar 9, 2010how to convert the .txt file to .shp file using visual basic 2008 express edition and the .shp file can read in ArcMap?
View 1 RepliesConvert A .mdb File To A .accdb Formatted File Using ConvertAccessProject
Nov 17, 2011I'm trying to use the VB.net and the ConvertAccessProject to convert a .mdb file to a .accdb formatted file. I'm having a problem getting the right References included in the project as it isn't recognizing the ConvertAccessProject command.
[Code]...
Convert Or Decompile VB .exe File To Normal VB Code File?
Jun 4, 2010how to convert or decompile vb .exe file to normal vb code file.because we can make a changes on vb exe file. so first we can decomplie the vb exe file in normal vb coded file.
View 1 RepliesRead A HTML File And Convert It Into A Text File?
Jul 14, 2009How can I read an HTML file and convert it into a text file?
View 2 RepliesWrite A Program That Can Convert .dwg File Into .xml File Format
Aug 12, 2010i am a beginner and trying to write a program that can convert .dwg file into .xml file format.i am familiar with visual studio 2008, vb.net and autocad 2007.my question is what do i need to do or learn to start this project?
View 2 Replies.net - Datareader In VB And SQL?
Jun 22, 2010i am working on a search feature for a program i am working on and i found a tutorial online that provides some insight but the actual code, after being modified to fit my aplication, does not work. i get two different errors as of right now, one that tells me "the value of type 'System.data.sqlclient.sqldatareader' cannot be converted to '1-dimensional array of system.data.sqlclient.sqldatareader" and the other that says"argument not specified for parameter 'array' of 'Public shared function... anyway i am kinda new to this and here is what i have so far. any advice?
Private Sub SearchOKButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles SearchOKButton.Click
[Code]...
.net - Going Through A DataReader Twice
Mar 30, 2011I have the following code which does what it's supposed to do:
objSQLCommand = New SqlCommand("select * from table1", objSQLConnection)
objSQLCommand.Connection.Open()
objSQLDataReader = objSQLCommand.ExecuteReader()
While objSQLDataReader.Read()
[Code]....
But I need to loop through the objSQLDataReader 1 more time. How would I do that?
Using DataReader In .NET
Jul 6, 2011I got the error message There is an open data reader associated with this command which needs to be closed first by using the following code:
myCommand = New SqlCommand("SELECT BookCode FROM tblBook",myConnection)
myReader = myCommand.ExceuteReader
While myReader.Read
[Code]...
Convert .htm File To Excel 2003 File?
Oct 4, 2010Iīm working in a application where I receive a .htm file, but I need convert it to a excel 2003 file
if I right click on .htm file appears the option to open it with excel 2003, but through the application even if I change the extension to .xls, the application continues recognize it as a .htm file, and donīt open it.
Convert Media File To Text File?
Sep 17, 2009while coding on my current project.. I just want to convert the media file (.wav) to text (.txt)/(.doc).
View 2 RepliesHow To Able To Convert And Excel File Data Into An XML File
Sep 24, 2010Does anyone have a source code or tutorial link how will I able to convert and Excel File data into an XML file?Currently I have tables that compose of headers and Data from excel file and i tried to use and convert into XML using "print" code but in VBA. I want to learn it by using the VB.net code.
View 2 RepliesAdd A Value Manually To DataReader ?
Jun 10, 2011I am copying sample.csv file's content into the new.csv file. But I need to add additional column in new.csv file which holds the default value as "Yes" for each row that exists in old file. Here is the code I have written.
Dim ioFile As New System.IO.StreamReader("C:sample.csv")
Dim ioLine As String
Dim ioLines As String[code].....
The first four columns ID,Name,Number,Amount are present in sample.csv.I am adding additional column Copied which should be "Yes" for each row.
How To Loop A DataReader
Mar 18, 2009If my Select statement finds data that matches the criteria, how do I get myReader (DataReader) to read each record when there are more then one record found?
Dim myReader As MySql.Data.MySqlClient.MySqlDataReader
myReader = myCommand.ExecuteReader()
If myReader.Read() Then
[code]....
Only The First Record To Come In Datareader?
Sep 21, 2009I am trying to tag of some words.There are 5 tag word in my database. but only the first record is coming.i want to
my codes
Public Function tags(ByVal ID As Integer) As String
[code].....
my html code in gridview <%#tags(Container.DataItem("ID"))%>
Sql - Use Datareader While Getting A Value To The Textbox?
Apr 26, 2011Hey Friend i am using a form with a *combobox*in which the items i have taken from the
sqldatabase named as balance and that sqldatabase have two columns one is customername and the
another is obbalance now .
In the form i had binded all the customer names from the table and now i have a textbox i want to do is
when the user selects the combobox.selected item any one customer name i need to display the obbalance of the selected customer in tat textbox
[Code]...
Two DataReader In One TreeView ?
Dec 12, 2009two DataReader in one TreeView ?
VS 2008 Using A DataReader
Jan 27, 2010I am working on a project which requires me to connect to a MySQL database. From there I query the database and need to do work on the returned values.
I can query the database just fine. However, now I need to do work on the results. The two columns returned are user_name and user_password. The rows are the user accounts. I would like to take my query results and put each column into its own arrary().
[code..]
Instead of writing the results to the console, I would like to write each column to an individual array. Is there an easier way to accomplish this task? Or, what is the code I must place within the loop to do this.
.net - Fill DataTable From DataReader Row By Row
Aug 25, 2010i want to fill a Datatable with a Datareader row by row but get an exception because the reader's columns have a different order than the Datatable's columns.
Why and how does a Datatable loads itself with a Datareader correctly, even so it has a column collection with different order?
I need to calculate values for every row so i dont want to load the Datatable completely but row for row. It has 25 columns so i dont want to set it all manually.
There must be a chance to load/fill/add a new row from a datareader without having the same column order(reader.GetSchemaTable?).
Following is what i have but what doesnt work:
Using reader As System.Data.SqlClient.SqlDataReader = command.ExecuteReader
'next line works(configInfo.DataSource is a Datatable)but is inappropriate
configInfo.DataSource.Load(reader)
[Code].....
.net Datareader Already Open Error When Not Used Before
Jun 22, 2011I have this sub as part of my login / logout system. When this sub is called to login users it works perfectly, but on logout it throws an error that doesn't make any sense to me.
[Code]...
This sets a nonsense email address so that when validate_session searches for a valid email/session combo in the db it trips the destruction of the sensitive session data.
The question boils down to this: Why is the error being thrown when the logout sub calls validate_session?
Any Way To Reset Or Clear DataReader?
Mar 6, 2012Is there an easy way to reset or clear a DataReader so it can be read through more than one time? I found a Close method but not an open method.
View 1 RepliesBig Performance With Oracle DataReader In .Net
Nov 10, 2010I have a few Oracle procedures that generate/return a large amount of data that I need to write out to a file.I'm currently trying to accomplish with a data-reader. It seems to be working, I've successfully generated a 479mb file without any trouble.It took less than 4 minutes from the time I retrieved the dataReader to complete the file.But the dataReader I get for a particular procedure is crawling.It's unbelievably slow.I modified my code to try and get a better idea of what is going on[code]I'm writing a PL/SQL block that will open that cursor to see if the performance issue exists when I remove the .Net code..
View 3 RepliesCheck Whether DataReader Has Data Or Not?
Nov 28, 2009Again I have problem with checking whether DataReader object has data or not?
Dim cmd as SqlCommand
Dim drd as SqlDataReader
cmd = New SqlCommand ("SELECT * FROM Stock", conx)
drd = cmd.ExecuteReader()
[Code]...
Compare A Textfield With The Value Of A Datareader?
Aug 1, 2011This may perhaps be a stupid question but I just can't get it to work.
I have an if clause where I compare a textfield with the value of a datareader.
It looks a little like this if me.txtfield1.text <> reader("field1") OR me.txtfield2.text <> reader("field2") ETC... I do this for a lot of field.
But now I want to check if field2.text is string.empty and if it is I want to skip the comparison for that field.
