Workbooks.OpenText Not Working?
Apr 19, 2009
I'm using Microsoft Visual Basic 2008 Express and had developed an application to perform Excel.Workbooks.OpenText. I had tried the application on my PC (running Office 2000) and my friend's PC (running office 2007); the software running fine on both PC. But I had experienced error using to application on Office 2000. It's giving me error which read as:
"System.AccessViolationException:Attempted to read or write protected memory. ...
at Excel.Workbooks.OpenText"
Does the error relate to Office version i'm using? Or it's PC hardware dependant (like lack of RAM).
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Mar 19, 2012
I use a text file to store the settings from my program.Now when i save the settings the text file gets created and everything works correctly. I can load the settings without any error.Now when i quit my program and star it up again clicking the load button will clear out any data in my text file. So the file still exist but it empty.It happens when my program runs this line of code.
Dim o_read As system.IO.streamReader = system.IO.File.OpenText("C: est.txt")
That just tells o_read that it is a stream reader and which file to read.How does my file get cleared out by that?
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Jul 22, 2011
I am working with a folder of xls files that are all in identical format (automatically generated by entering numbers into a pricing app). I need to pull the data that is in cell D54 on the worksheet of the same name in every file. Can't seem to get anything to work to make it loop.
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May 8, 2009
I have a bunch of Excel workbooks that contain multiple worksheets. I want to loop through each workbook and export each worksheet into it's own new workbook. I want one worksheet in each new workbook.
Here's what I've got so far:
Sub ExportWorksheet(ByVal worksheet As Excel.Worksheet, ByVal filePath As String)
Dim xlApp As Excel.Application = New Excel.ApplicationClass
Dim xlWorkBook As Excel.Workbook = xlApp.Workbooks.Add
worksheet.Select()
worksheet.Copy()
[Code] .....
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May 4, 2011
Trying to get names of all visible open excel workbooks. I found code online, that is below.I suspect the code is not working for me because either: I didn't include a reference (in addition to the MS Excel 12.0 Object reference and in addition to the Microsoft Office Interop reference, both were made) or something else basic being missed. i have been using the "early-bound" code below that is recognizing oExcelApp as visible...however, the open excel workbooks that I have open, are not being recognized.
I am using Windows XP and VB in Visual Studio 2010.Here is what I found online; disregard the late-bound if doesn't apply:
[Code]...
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Jan 19, 2010
How Do I save changes (made by excel itself) in workbooks without prompting the user?
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May 30, 2010
is there something wrong with this one?
SaveFileDialog1.Filter = " Excel Workbook (*.xlsx) | *.xlsx |(*.*) | *.*"
cause i can't filter all the excel workbooks and no files come out, but when i use this..
SaveFileDialog2.Filter = "Text (*.txt) |*.txt|(*.*) |*.*"
all the text files are being filtered..
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Dec 16, 2010
When working with Excel in this context, is there a way to get the Excel Application/Workbooks/Sheets events?
Imports System.Runtime.InteropServices
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
If Process.GetProcessesByName("Excel").Count <> 0 Then
[code]....
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Oct 5, 2009
Our small business uses a VB project to 'process' information in excel workbooks. The project works on all machines except one (a new one) which generates a "Runtime Error 9". All machines are using Office 2003. When I try to debug it takes me to the following code, Workbooks(Tempname).Close SaveChanges:=False
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Jul 15, 2010
I have written a program that will export data from access data to Excel by using XML programmatically, But I seem to be having problem when I tried to open in excel.
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Jan 18, 2010
In VB 2008, I am trying to create an app that will copy a range of cells from one worksheet ("xlWS1") in the first workbook ("xlWB1") to another worksheet ("2") in a second workbook ("xlWB2"), starting in cell A1. I would like this to be activated by a button.Then, another button will copy the same cells from "xlWS1" to "xlWB2", worksheet "3", and so on for each subsequent button.
xlWB1/xlWS1 contains data in the cells that is updated from our data acquisition system once per second. (we perform jet engine testing). "xlWB2" sheets (6 of them) will contain the saved data from the "live" screen (xlWS1, came cell range) in the first WB. There are several different versions (filenames) of the second workbook, one for each engine model.Both workbooks should already be open, but I would also like the app to open them if they are not open already.
We have been using VBA macros to do this, but run into problems when someone saves the second (destination) workbook under a different filename. For some reason, if the filename of the Wb that is already open isn't the same as what's in the macro for that button, the macro's defined workbook is renamed in the macro. I am trying to get away from using the macros to keep this from happening, and to make an app that's "foolproof" so it is more reliable.
I already have an app that will open the proper workbooks. I may combine the two apps in the future. I can't find a solution for this. The VBA code is quite different and simple as far as opening, activating, copying, etc. Basically, I can't seem to find any self-explanatory "activate/copy/paste, etc." namespace in Vb 2008 like I used in the VBA macros.
I'm sure the solution is simple, but I just can't seem to find it in the MSDN library or the VS 2008 book I have. Everything in the book talks about accessing databases, which we don't use (yet). There's nothing concerning this issue with Excel 2003 workbooks/worksheets.
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Jan 5, 2012
I would like to display all open workbooks in a listbox.The problem being that there may be a number of Excel Processes running.[code]...
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Jul 30, 2010
How to use vb.net to change an excel workbooks printer settings to 2 sided or duplex before it prints??
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Dec 23, 2009
I have 2 workbooks( Book1 and Book2) with multiple sheets.I am only interested in one of the worksheets in the workbooks(both the worksheets names are the same).The thing is that the data is in the form of pivot tables, so each time i have to filter according to specific categories, copy and paste into another new workbook.The thing is column headings in both the worksheets are different,BUT BOTH the worksheets data must be combined into 1 single worksheet( row after row).
Meaning in Book1, my columns are in the form of Cost, revenue,margin and in book2, the columns are in the form of Cost,Revenue, Profit Margin %.... That means i must add a profit margin % column in Book1 and a Margin column in Book2 before I combine the data into a single worksheet. Each week, new data gets added into Book1 and Book2, so I wish to automate this by creating a code, so that when the source data changes, my new workbook's data also changes.
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Sep 3, 2009
My code is below - doesnt work
1. Currently I am in Query.xls.
Application.Workbooks.Open ("C:AdiData.xls") 'Opening a file to query from
Worksheets("Sheet1").Range("K2:K" & rowCount).Formula = "=VLOOKUP(RC[-5],'[D:AdiData.xls]Sheet1'!C3:C5,3,0)" 'Performing vlookup in data file
I am unable to do this.
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Feb 11, 2009
I would like to open the excel file after create the excel file. The creating file function is done, but the system unable to open the excel file. My coding as below:
Dim xlApp As Excel.Application
Dim xlWorkBook As Excel.Workbook
Dim misValue As Object = System.Reflection.Missing.Value
[code]....
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Dec 13, 2011
I am looking for the code to consolidate multiple .xls sheets from within multiple work books in a file all containing the same format of information. Each sheet needs to be coppied to a new sheet within a single work book.
Once in a single sheet I need to then copy data from a range of fields into one consolidated sheet.
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May 10, 2010
Using VB to open a .csv file with "excel.workbooks.open", editing it, then saving as .csv.
Even though it is saved as .csv, it is still identified as .xls.
Is there an alternate way to open this .csv file so that when it is saved as .csv the excel application actually identifies it as a comma delimited, not a spreadsheet?
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Sep 3, 2009
I found on msdn samples and modified (add Thread.GetDomaind.UnhandledException)
<SecurityPermission(SecurityAction.Demand, Flags:=SecurityPermissionFlag.ControlAppDomain)> _
Public Sub Main()
' Add the event handler for handling UI thread exceptions to the event.[code].....
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Jun 18, 2009
It appears that my favorite thing in the world is tackling projects that are beyond my current knowledge and abilities. I have a little project that I am working on which is a simple image viewer stocked with (upon completion) your standard Load..., Next/Previous, Zoom In/Out, Actual Size, and Full Screen capabilities. However, I am running into a few snags:
(1) I've been able to get my "Load..." button to display a file dialog box, but I cannot seem to get a working filter (with which only image file types are allowed to be selected) in working order.
(2) I have a PictureBox object (entitled PictureBox1) that displays the image selected via the file dialog box, but it loads images in their full size (1:1/100% zoomed) state without scrollbars, etc. to allow me to navigate the loaded image. I would like to have it load the image, initially, to fit within the dimensions of PictureBox1 and from there be able to zoom in/out via my "Zoom In/Out" and "Actual Size" buttons and be able to scroll if the zoom level is beyond the dimensions of PictureBox1.
(3) It dawned on me that I haven't the faintest idea how to get my "Next/Previous" buttons to allow the user (me) to navigate, in succession, the images contained in the folder in which the currently loaded image is stored. [code]
If it is deemed that this thread is inappropriately requesting help, I ask that it be locked/deleted quickly as I recognize that this is a large community with many discussions going without need of unwelcome posts.
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Jan 19, 2012
I'm using loop to read data from sql and then make some calculations then save it again to another table but when application loop for 3 or 4 times it's freeze but the job is done but if loop = 10 or more then it is freeze and hangup for long time .i need to learn how to make my application working better and never freeze and make application working with any count for loop without freeze .
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Jul 14, 2010
I can't understand why this is not working.
[code]...
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Mar 28, 2009
I am moving over to vb.NET and am experiencing the learning curve. Am learning quickly, but I do have a question for anyone who can respond. vb6 could be made to run much faster by going after the GDI API directly, rather than going through vb6's standard wrapped functions like Line(), and Circle(). Now that I am working with vb.NET and GDI+, as far as I can tell there is no wrapper anymore and you hit GDI+ directly "right out of the box". Is this true? It looks like trying to phenagle the old vb6 API code can't work because .NET does not use GDI anymore...it uses GDI+ via the System.Drawing namespace.
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May 19, 2012
I'm developing application using RS485.
Which is working fine when i debug from project itself but when i run after building .exe it is not getting any reply back.
After some try and error i found that RTS(Request to Send) is the reason behind this problem.
Port.RtsEnable = True
Port.Write(DATA)
Port.RtsEnable = False
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Jul 31, 2010
I added FileSystemWatcher in Form1_Load like this -
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
....................
[code]....
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Apr 26, 2010
I can't figure out why my addhandler is not firing?In the Sub "CreateTagStyle" the AddHandler is not firing when the LinkButton is clicked Is there some reason that addhandlers can't be added at certain points of the page lifecycle?
<%@ Page Title="" Language="VB" MasterPageFile="~/_Common/Admin.master" %>
<script runat="server">
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)
[code]....
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Oct 4, 2011
I am using the CustomValidator for the first time but it doesn't seem to be firing DateExpireRequired_ServerValidate and just runs the code in the Click action.Been bugging me for a couple hours now! can anyone see a problem with what im doing?The DropDownList in my code below is populated using Roles.GetAllRoles()
ASP.NET
<asp:Label ID="lUserRole" runat="server" AssociatedControlID="tUserRole">User Role:</asp:Label>
<asp:DropDownList ID="tUserRole" runat="server" CausesValidation="True">
</asp:DropDownList>
[code]....
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Apr 6, 2010
I'm trying to get get the short filename from a long filename but I'm having problem in c# code. VB.Net code is:
Declare Function GetShortPathName Lib "kernel32" _
Alias "GetShortPathNameA" (ByVal lpszLongPath As String, _
ByVal lpszShortPath As String, ByVal cchBuffer As Long) As Long
[Code]....
But I cant get the c# version work. Am I missing something or what is wrong?
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Jul 28, 2010
I have a Class Library that is exposed to COM like this:
<ComClass(SomeClass.ClassId, SomeClass.InterfaceId, SomeClass.EventsId)>
Public Class SomeClass
Public Const ClassId As String = "GUID1"
Public Const InterfaceId As String = "GUID2"
[Code]....
Compile error:
Function or interface marked as restricted, or the function uses an Automation type not suppport in Visual Basic.
What do I need to do to properly expose this Method so I can use it like this?:
SomeClass.SomeMethod 1, 2, 3
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Sep 29, 2011
I have an SQL command I am attempting to execute.The syntax is as follows
[Code]...
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