Office Automation :: Publish Cell Data To VB Using COM Interop
Apr 30, 2009
I have been trying to find a way to link VB .Net and excel in real-time. Using the COM and IRTDServer I have been able to send data from VB .Net to excel live (basic RTD server client), but I have not been able to find a way for the client to then publish back to the server real time, i.e. a cell that is changing based on a number of variable to be published back to the server and out to other clients real time.
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Nov 18, 2010
Here's the user environment: Microsoft 2003 Web Server Microsoft Visual Studio.Net 2005 (VB.Net) Microsoft Office PowerPoint 2003 We are attempting to use Interop in a web service to update PowerPoint presentations. It worked great on my laptop, but when we migrated to the server, we encountered issues.Basically, it started taking 10 or more minutes to open up the presentation, which means we usually time out.
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Oct 4, 2009
I have user form that copies data form on excel sheet to anther after the paste takes place.I need to perform a cleanup process. If the cell Value = N/A or the Cell formating is Strike thruIt need to1) Cut the Entire row 2) Shift the Row up3) Then paste the cut row into an anther sheet in the workbook
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May 25, 2012
I have code that will plus Row but need help with pluse column.Full code snippets:
Imports Microsoft.Office.Interop
Public Class Form1
Private Sub ButtonTab_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ButtonTab.Click
Dim MyExcel As New Excel.Application
[code]....
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Aug 17, 2009
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I am not sure I should be asking a question like this. But while going thru the thread I could understand assigning values from Excel cell when you know cells address. I am trying to find out syntax for activecell, activecell. row, activecell. offset etc.
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Jul 2, 2012
I'm inserting data into excel sheets and after i fill each sheet I want to sum a column so select the data and add a formula to a cell. However when the sheet is opened the cell contains the formula as text instead of the sumation value. I tired several ways but here are a few different meathods that both end up with the same undesired result.
Code:
'Meathod 1
oSheet.Range("H2:H" & (dtEntries.Rows.Count + 2).ToString).Select()
oSheet.Range("H" & (dtEntries.Rows.Count + 2).ToString).FormulaR1C1= "=SUM(R[-" & (dtEntries.Rows.Count).ToString & "]C:R[-1]C)"
[code]....
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May 23, 2011
I've managed to work out how to read EXCEL cells via static values. Ideally I would like my application to check the third column of the EXCEL sheet and if there are no entries on a given row, it should display the coresponding row of colums 1 and 2...for example if (C,3) contains no entry then get values of (A,3) and (B,3)...then mark (C,3) as pending by writing a value to (C,3). Here is my code at the moment
[Code]...
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Jul 15, 2011
I am exporting text to a worksheet with fixed column widths and there instances where the text in the cell does not fit and will obviously overlap to the cell on the right.
I'd like to prevent that overlapping by reducing the font size of the cell if it is necessary. The problem is how to check if the text does not fit.
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Jan 8, 2009
I would like from a certain url, to launch an excel file, have the user fill some cells and then return the value to a database by aspx perhaps.
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Feb 12, 2010
is there a way of getting the screen coordinates of individual cells on an open Excel sheet, what I want to ultimately do is pass in a cell range say, "A5" into a function and watch the mouse cursor move slowly to that cell. I know this might seem a weird request. I already have a mouse move function but that accepts the x/y coords in pixel terms where excel using .TOP and .LEFT give an entirely different format?
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Jul 28, 2010
How do I get in VB2005 the last row in a open excel sheet that contains data
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Feb 14, 2009
It appears that when one creates an instance of Excel, using CreateObject, (Late binding), the suggested Excel closing function (with GC.collect etc) does not work. I have tried several suggestions, and the only one that works is process.kill method. Do you see any problem in using this? BTW: the reason we are using late binding is that we cannot use Office PIAs....not sure which version of Office would be installed on the client site. We work with O2003, but the client might still be at 2000 or 2002.
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Nov 11, 2010
The control comes up blank??Imports System.Data Imports System.Data.OleDb Public Class Form1
[Code]...
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Sep 3, 2009
I'm trying to copy data from one workbook to another. The program first grab this data that comes in from a data collector and puts it in a excel spread sheet. It then closes its link to excel. I'm trying to grab that data out of the first spreadsheet and put it into a workbook thats set up like a template that will crunch the numbers. I'm currently dim-ing a varible called "grabber" as an Excel.range and setting it equal to the range of my raw data. Can I then say grabber.copy(Destination:=oWS.cells("A1")). I've been beating my head against a wall on this one.
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Feb 16, 2010
I've made an application, that allows to export some data to an exisiting excel-file. Everything works fine on my system, but not on other OS where Visual Studio is not installed. The xls file is simply not being edited at all.[code]
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Oct 1, 2009
i am doing A-level computing and for my project i need to be able to create a graph in a VB form using data imported from a spreadsheet at a given destination. I'm struggling to find any tutorials or posts that fit
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Jul 8, 2009
I have the following code which works fine. However, I want to change one format when I export it to excel ..
Colum 3 is Sort Code and have the format 00-00-00, I want to change it to 000000 i.e., remove the dashes.
When exported to excel I use a formalue (Substitute(A1, "-", "") and this removes the dashes. But what I want to do is remove the dashes before exporting to excel... see the code below for datagrid - excel export, highlighted is where I think the one line code should be...
Code:
Private Sub ExporttoExcel()
'verifying the datagridview having data or not
If ((DgvQuarCommit.Columns.Count = 0) Or (DgvQuarCommit.Rows.Count = 0)) Then
[Code]......
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Mar 1, 2010
I am working with Vb.net and this code below works fine. However, when I review the data exported to excel I have a problem with one particular field i.e., sort code,( Columns (2) ) Sort code in the database it is in the format 00-00-00. Therefore if it is 12-11-09 or 11-01-66, a look alike of a valid date it is displayed as 12/11/2009 and 11/01/1966 in excel after the export. Excel thinks its a date which is incorrect. I expect it to show 12-11-09 and 11-01-66.
Private Sub ExporttoExcel()
'verfying the datagridview having data or not
If ((DgvQuarCommit.Columns.Count = 0) Or
[code].....
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Dec 13, 2011
In my app I need to fill an excel file with some data. On change of customer the data needs to be on another worksheet, sheet renamed and so on.
The workbook now has 19 sheets (wSheet.Add(,,16), the first worksheet gets renamed to custno. and the sheets gets filled.
But whatever I try, I can't get onto the other worksheets.
All I Googled seem to raise errors; following code is part of a nested 'If'
Code:
Dim excel As New Microsoft.Office.Interop.Excel.Application
Dim wBook As Microsoft.Office.Interop.Excel.Workbook
Dim wSheet As Microsoft.Office.Interop.Excel.Worksheet
If w < 1 Then
[Code].....
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Mar 24, 2010
i want to transfer data from my textboxes to excel but in the same sheet because the data that i have is more than 50 lines and i want to put it little by little in the same sheet instead later to make some calculations in excel.i have code that is working but each time i click it creats a new book a new sheet i dont want that i want to add data in the the same sheet.
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Jun 28, 2010
I have written a VBA code in EXCEL that updates my tables in Access. The code is fully functionnal when I am entering new data but I don't know how to make it work when a data (primary key) already exists and that I need this data for another table. I would like to find a code in this format (DAO) :
If value exists in table Then
Return the value.code (not the value but the code related to this value)
else
.addnew
here is what I have tried but does not work:
Code:
Function Find_Last_EngineCode() As Integer
Dim cn_engine As ADODB.Connection, rs_engine As ADODB.Recordset, feuille As Worksheet, plage As Range, last_record As Integer
Set feuille = Application.ThisWorkbook.Worksheets("To_Access")
[code]....
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Dec 5, 2011
have a code with a progressbar to import data from text file. My problem is after first loop, a progressbar gets error.
Code:
Sub import_mgf()
Progressbar.Show vbModeless
Progressbar.Caption = "Process status"
[Code].....
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Jan 25, 2011
I have written an automation addin in Excel with C# (addin.dll). To use the addin, I need to 1. register it using "regasm /codebase c:...addin.dll"2. select in ExcelOptionsAddInsExcel AddinsAutomation the respective addin from the list
I would like to automatize 1) and 2), so that the user just needs to run an exe-file in order to use the addin. 1) should be no problem, but how can one automatize 2)?
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Apr 20, 2010
Ok basically what I need to do is the following:Read FirstExcelDoc (attached)For every row in that: Retrieve data from sql server db based on info in the Orange columns of FirstExcelDoc Let's say I retrieved data elements A, B, C, D, and E from sql server. Then I need to enter those same data elements A, B, and C in another excel spreadsheet (which has formulas etc) After inputing A, B, and C in that spreadsheet, read a couple of calculated fields and compare those results to data elements D and E retrieved originally from SQL Server DB. Finally, output the results in the Blue columns of the FirstExcelDoc spreadsheet for that row.Loop through and do the same thing for row 2 of the FirstExcelDoc and keep on until you see "END TEST" in the FirstExcelDoc.
I'm looking for a method of doing this efficiently. I have read several articles over the past few days as well as those from Mike R. but just need some direction to get started on this.To start of I'm looking for whether to read the entire FirstExcelDoc spreadsheet or just read the info for first policy number(2nd row) and process it and write out the blue column info for that row and then loop through and come back and read the second policy number (3rd row) etc... Please attach a code snippet for either way of reading the data.
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Jun 17, 2009
I'm using excel via interop in application.Sometimes users kill application that created excel instance and that results in excel instance sitting in memory without any chance of disposing it.First I tried to tackle this using ROT(running object table) looks like not all instances of excel are registered there.Than I tried to somehow mark excel process after it is started via interop.[code]This works as long as excel is visible but in my case excel window is invisible.All I need is to somehow mark process that started via automation with the parent PID, so that later I can kill it if parent does not exist.
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Apr 16, 2010
I have successfully automated a PowerPoint Metrics presentation with VB.Net. However, since there were many complicated calculations, it took quite some time to make the 120+ slide presentation - so I recently tried to revamp the application to be multi-threaded.
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Jan 21, 2012
I've got VS2008 and Office2010, but I don't have Office2007. Therefore, I have the Word14 Object Library but not the Word12 Object Library. Will the code that I create for Office2010 automation also work where clients only have Office2007 or will they have to upgrade their office suites?
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Jun 22, 2010
I have an Excel based algo-trading app that needs to take in lots of real-time data, and make trading decisions based on the calculations driven by the data. It is not one of those "read-only" stock ticker kinda spreadsheets.I created a COM object with VB.NET that runs in its own thread space which collects data from a socket, and when the data is read it raises an Event with data attached. In Excel VBA, the event handler parses the data, puts them to the right places on the spreadsheet to feed calculations (so far it sounds like a stock ticker app), and then, based on the results of the various calculations it does something.The problem is that when the user starts to click around the spreadsheet while there is large amount of data coming, the event handler's cell updating breaks apart. If the app is left alone without user action, it stands well. My frustration comes from not understanding what happens to the main thread when a user clicks around. Either the event handler blocks the user action, or the user action blocks the event handler (under which case I will put in some queuing facility). But I just don't see how user action can break the code (like causing VBA to stop executing)
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Dec 17, 2010
I have been pulling my hair out trying to fix this.
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Jun 1, 2010
We have a vb program which is run on our server by scheduled task every day. The program opens about 30 excel files, refreshes the data connections, pivot tables and then saves the document in another location.
This may run fine for a couple days but sooner or later the process starts crashing, usually with this error: RPC_E_SERVERFAULT.
My question is, Is it expected that continually opening/closing/refreshing workbooks will inevitably cause the Excel object to crash at some point.
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