VS 2008 : Using SQL Query And Excel File?
Nov 15, 2011
I'm retrieving data from an Excel sheet, using a simple SQL query using a textbox as input to my variable. It works great when I enter an integer to search for (such as 213 for example) but when I put in a mixture of numbers and letters (48A for example) I get the following error: Syntax error (missing operator) in query expression '[P&L]=48A'. Can anyone tell me the fix for this? I know it has something somewhere to do with integers.
Private Sub MPLS3()
Dim BrNr As String
BrNr = TextBox1.Text
[code]....
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Sep 26, 2010
This one is blowing my mind and I could use a little expertise. I'm retrieving data from an Excel sheet, using a simple SQL query using a textbox as input to my variable. It works great when I enter an integer to search for (such as 213 for example) but when I put in a mixture of numbers and letters (48A for example) I get the following error: Syntax error (missing operator) in query expression '[P&L]=48A'. [code]...
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Jan 17, 2012
I have a desktop app, I use this code to create a .xls file using a FileStream object:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim i As Integer
[code].....
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Mar 28, 2011
I would like to generate an Excel file using a database query in VB.Net. How can I do it? To be more precise: I would like to "bind" a query (much like binding a query to a GridView) to an Excel file such that the rows in the table occupy corresponding cells in a new Excel file, and save the file to my computer. And then, mail that file to someone. While I can handle the mailing part, it's the creation of such a file that I need help with. Anyone know how to achieve what I want to achieve? PS: I need to do this in VB.Net and I'm using SQL Server 2008.
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Feb 7, 2012
I am uploading an excel file to my app and want to read it. Do I need to have excel loaded to read this?I am getting an error of Object reference not set to an instance of an object.
Public Function GetExcelData(ByVal ExcelFilePath As String) As DataTable
Try
Dim OledbConnectionString As String = String.Empty
[code]....
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Nov 22, 2009
create an EDI 837 /X12 file from a SQL query. I will be creating a temp table then inserting data to the file.The X12 file has essentially 3 parts: The Header, The Detail, and The Footer
The Header looks like this
ISA*00* *00* *ZZ*HIS199 *ZZ*300002373 *060920*2314*U*00401*000000089*0*P*:~
GS*HC*HIS199*300002373*20060920*2314*43*X*004010X098A1~
ST*837*000000001~
BHT*0019*00*90*20060920*2314*CH~
[code]....
What method choices do I have to choose from to assemble this to a file?
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Oct 7, 2009
I have a text file and I want to take the data from the text file and write each line into the excel file (into the same column). How do I accomplish this? I know how to read data from a text file, but I don't know how to insert the data to a excel file..
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Feb 24, 2010
I am using asp.net oledb to export information to excel file. I encounter problems when the information to export becomes too big, in this case the code I have given below, the excel file generated becomes an empty spreadsheet.If I changed the loop to 1123 for insertion of the rows. The generated excel file is fine, 1125 rows, and 4 columns shown.A test program in windows form is also working fine regardless of how many rows.[code]I couldn't find a solution to my problem as well. What I did eventually was to run the process using another separate windows service. The code works perfectly fine running from a windows form or service program, but not asp.net, not sure why.
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May 8, 2012
I have this issue that occurs with me and driving me crazy i have a report that contains thousands of records and i need to export it to excel , but the excel normal extension .xls
is showing missing records at the end of the file , so i save my file as an .xlsx extension it saves correctly but when i open the file it generates an error
"Excel cannot open the file '<var>filename</var>.xlsx' because the file format for the file extension is not valid. Verify that the file has not been corrupted and that the file extension matches the format of the file."but when i test the file i drag it and open it in an empty notepad all the records shows up correctly
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Nov 2, 2009
I need to get ALL data from an excel file.. for some reason I can not get the data that is like this.
column C:
2122
2122-215
2133CD
2441
I can get all the green just fine. but the red I can not.
Here's my code for extracting the data.
vb.net
Do While rsRecords.Read
RichTextBox1.Text += vbCrLf
For intFields As Integer = 0 To rsRecords.FieldCount - 1
If Not rsRecords.IsDBNull(intFields) = 1 Then
RichTextBox1.Text += rsRecords.GetValue(intFields) & Space(5) '.GetValue(intFields))
End If
Next
Loop
Here's the full subroutine. Keep in mind this does pull data. Just not from the same column that contains actual numbers where there are not actual numbers.
vb.net
Private Sub NewFileToolStripMenuItem_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles NewFileToolStripMenuItem.Click
Dim dbConnection As New cADOConnection("C:Documents and Settings<user>DesktopAttribute data Line 2.xls")
Dim rsRecords As OleDb.OleDbDataReader = Nothing
[Code] .....
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Jul 7, 2010
i have a connection between my vb .net and mysql.. my problem is that i do not know how can i import an excel file, (i used openfiledialog). and then all of the data from that excel file will delete all the similar data from the database.
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Jan 2, 2010
Currently i working on a project which needs an excel file to be opened at the rum time in Vb.net 2008.i tried to call the same using richtextbox, it shows the file but the content is not readable.
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Jun 4, 2011
I am trying to use the BGW to save a DGV to excel file, but don't know how to do it correctly, specifically setting the savefile name this code doesn't work gives me:
'System.Runtime.InteropServices.COMException' occurred
- Make sure the specified folder exists.
- Make sure the folder that contains the file is not read-only.
- Make sure the file name does not contain any of the following characters:
Ensure that your Main function has STAThreadAttribute marked on it. This exception is only raised if a debugger is attached to the process. I also tried doing the Save in the BGW RunWorker Completed event but then there is no file name. It seems I need to pass the file name the user inputs in the SaveFileDialog to the BWG WorkerCompleted event somehow
Private Sub excelexp_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles excelexp.Click
ProgressBar2.Visible = True
Saving.Visible = True
Dim saveFileDialog1 As New SaveFileDialog()
[Code] .....
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Jul 4, 2010
how can I let VB.Net writes an excel 2007 file? For example, the data in a TextBox will be written to the excel file every 30 seconds.The enviroment is VS2008, .Net 3.5.I've just started VB for one month, so please give me a piece of code to help me understand. I tried to find the solution on the Internet, but none of the codes worked for me, some people mentioned import "Microsoft.Office.Interop" in the code, but if do that in my code, VS said that "Namespace or type in the Imports 'Microsoft.Office.Interop' doesn't contain any public member or cannot be found. Make sure the namespace or the type is defined and contains at least one public member. Make sure the imported element name doesn't use any aliases."
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Mar 26, 2009
Is there a way to draw a graph in real time. The excel file has one column with the time in sec.(x) and the other column is data(y). The examples with charts I've seen is about converting to a picture, then paste it to a picturebox.
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Nov 26, 2011
I'm using Vb.net 2008 This code will open specific Excel file from specific location(C: a1.xlsx) and print data to it. Is it possible to open this file from any location(as when we use Process.Start("ta1.xlsx") )on Pc and complete the process of code( print datat)
vb
Dim exl As New Excel.Application
Dim exlWorkSheet As Excel.Worksheet
exl.Visible = True
[code]....
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Apr 18, 2010
My program needs to read data from a few Excel files that my company has made, basically a database I guess. Is there a way I can put the actual Excel files into my program so that the user doesn't have to supply them? Or perhaps there's an easy way to turn the Excel file into a database?
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May 22, 2009
Im trying to populate a combo box with a column in an excel file.Im not even sure where to start. I searched around but couldn't find the info I needed or samples to learn from.
Can anyone point me in the right direction to where I may accomplish this?
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May 29, 2009
I have a SQL query that I want to integrate into a VBA subroutine in Excel. I have had some success using the Macro Recorder to call up the SQL query (throuh Microsoft Query) in the past. However, the SQL code that I have for this query is significantly larger than previous attempts.When I record this one through the Macro Recorder is trips up because there are too many line breaks integrated into the recorded code. To get around this I have tried to manually update previous (successful) queries with the larger SQL code that I want to use, but without success.I was hoping that someone out there has some experience in integrating the standard SQL query code (SELECT xxxx, yyyy, zzzz, *nnnn FROM aaaa, bbbb, cccc, *nnnn WHERE 1111, 2222, 3333, *nnnn) into VBA.
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Apr 30, 2009
When I look at a file on my hard disk, e.g. test.csv, when I look at the Properties of the file, it is officially known as, "Microsoft Office Excel Comma Separated Values File", and file types of .pdf are listed as "Adobe Acrobat Document", etc. etc. All of this information can be seen in Windows Explorer too when my folders are displayed by Details. How do you get at this "type of file" information with .NET?
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Feb 25, 2008
I am using VB2008 and have an integer value.How do I export it to an exisitng Excel file, I want to put it in a specific cell.Also, I may have the need to do this for an array in which I would like to put in in consecutive cell in Excel.
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Dec 27, 2010
I have created an vb.net application in which ,I want to export sql table data to excel.
On form I have used one button namely "Export to Excel".
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Feb 12, 2009
The program creates the report in excel just fine and it creates the borders and headers. I want to know how can I printpreview an excel file from VB.net. You can refer a tutorial or explanation or sample of how can I do this.
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Jul 21, 2009
I have a column in an excel file which contains a string. I need to loop through each row in the excel file and extract an email address from the string.
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Dec 23, 2010
I need to read an Excel file (.xls, 2003 format). The data in the excel file is composed of two parts: - The first 14 rows consist of all kinds of stuff, buttons, merged columns, stuff I don't need. You can see this as a header for the worksheet. - The next row (number 15 viewed in Excel) contains column header names - All remaining rows contain the data I need to read. I have tried reading this file using two different methods. The first method is simply using OleDb:
[Code]...
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Mar 29, 2010
currently i need to use 4 different texts files in order to read data and run my program, is there any way that i can just use 1 text file or 1 excel spreadsheet? here are my codes now.
Dim File1 As New System.IO.StreamReader("C:Documents and SettingsUserDesktopWindDirectionLanding.txt") 'Calling out the file.
Dim File2 As New System.IO.StreamReader("C:Documents and
[Code]....
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Aug 9, 2010
I have a VB app that exports some data to dbf tabes.I have empty dbf files,I write data and then save them,all works fine,but now I need to export to a .xls file(I have a structure just like dbf),I need to write data to the file without having Excel installed.
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Oct 6, 2009
I need my app to create a excel file, but I am getting a error running this code. While running this in debug, on the line "xlWorkSheet.SaveAs("C:vbexcel.xlsx")" there is a error saying "ComException was unhandled" and "Exception from Hresult 0x800A03EC"
Imports Excel = Microsoft.Office.Interop.Excel
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object,_
ByVal e As System.EventArgs) Handles Button1.Click
[code]....
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Jun 18, 2009
I need to emulate an Excel Web Query in .net Below is the sample code.I get an Error500 when I attempt to do this in .net, however in Excel it works fine.When I change the URI to a normal website it works fine, and returns the html from the page, which i what i am after. I wonder if the problem lies from the fact that I am trying to return a datatable
Dim oHttpWebRequest As System.Net.HttpWebRequest
Dim oStream As System.IO.Stream
Dim sChunk As String[code]....
Edit: I am getting the error when I getReponse from the server
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Feb 8, 2011
I am using VB.NET to query via SQL an Excel spreadsheet using ADO. The general way is like this: SELECT [firstname], [secondname] FROM [Sheet1$] Which works perfectly
However, one of the headings is called 3, so I want to do: SELECT [firstname], [secondname], [3] FROM [Sheet1$] However, this does not work. I know I can use * to get all columns, but later on I want to use (using dataReader): dr("3") which won't work
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