Post A Windows Application That Uses Excel For Live Data Calculations?
Jul 14, 2009
Can I Post a Windows Application that uses Excel for live data calculations? Basically from the Windows app, a user makes a menu selection and which in turn opens an excel file in memory using it for calculations. These files are put together by different groups and formatted for the Windows app to build interfaces based on each file.I also accompany an .mdf file as well. Is all this possible for customers to access and run this with Windows Azure.
I am using Datagridview and ListView Controls in my windows desktop application using vb.net.I want to Import data directly to Excell sheet and CSV file directly from form.
I am converting several VBA projects to Windows form applications. The only problem I have is that some of the functionality of Excel is essential to the application, such as R1C1 formulas. I do not want to instantiate the Excel application or access saved worksheets. All of the data is retrieved by querying Oracle databases. 2-Dimensional arrays are not an option because the columns contain differing datatypes, and DataGridViews are too slow to work with.
I thought simply dimming a Microsoft.Office.Interop.Excel.Worksheet object would be enough, but the program kept failing and upon inspecting the object's elements in debug mode, I found that every value says this:
{"Unable to cast COM object of type 'Microsoft.Office.Interop.Excel.WorksheetClass' to interface type 'Microsoft.Office.Interop.Excel._Worksheet'. This operation failed because the QueryInterface call on the COM component for the interface with IID '{000208D8-0000-0000-C000-000000000046}' failed due to the following error: No such interface supported (Exception from HRESULT: 0x80004002 (E_NOINTERFACE))."}
I'm instantiating a WebBrowser object and programmatically clicking a button to navigate. Is there a way (property, method, or voodoo ritual) for me to check the browser after it lands on the new page to see 1) the form method that was used and 2) the post data?
i am trying to make an application that post data to a joomla login page but the only thing i get back is cookies is not enabled.
Function GetPage(ByVal Url As String) As String Dim CookieJar As New Net.CookieContainer Dim enc As Encoding = Encoding.GetEncoding(1252) Dim Data As Byte() = Nothing
I have written a vb.net desktop application for pipe collectors and one of the requests that seems popular is to be able to post pipe details (text) and an image of the pipe onto the user's facebook wall.
Basically the user will bring up their pipe details of choice and be able to click a 'Post To Wall" button which would then post the pipe details onto their wall.
I am trying to read excel data (Excel 2007 SP1, on Windows XP SP3) with visual basic .net 2008 (VB 9.0 SP1). I have tried several attempts and whatever I do I am getting the following error message: System.Runtime.InteropServices.COMException was unhandled ErrorCode=-2147319784 Message="Altes Format oder ungültige Typbibliothek. (Exception from HRESULT: 0x80028018 (TYPE_E_INVDATAREAD))" Source="Microsoft.Office.Interop.Excel" Message="Altes Format oder ungültige Typbibliothek." Translated: Old format or unknown type libraryI have added the reference "Microsoft Excel 12.0 Object Library" to my project. I am assuming that I might have to add a different or an additional reference, but I do not have any clue which one to use. List of things I have already done:- Searched other forums- Altered the language settings- Tried it on an other Computer (Win XP SP3, Excel 2007, Visual Basic 2008 Express)- Ran the diagnostics tool in Excel - Updated all updates etc...- Reinstalled Visual BasicI really do not have any clue why it should not work?
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 Dim xlsApp As excel.Application
I want to make a program that tells you if you can login to an email account or not by entering their username and password into Windows Live.
It would connect to the Hotmail server and see if the user/pass combination is correct. If it can log in, it would display a label that the account is valid, if not it would say that the account is not valid.
Ok here's the totally incorrect code for logging in. I kind of borrowed it from sending an email:
Dim MyMailMessage As New MailMessage MyMailMessage.From = New MailAddress(TextBox1.Text) MyMailMessage.To.Add(TextBox1.Text)
I am exporting the contents of one excel file data to the other excel file by using the range excel object in a windows application. while declaring the object, am getting the error like type excel object is not declared. [Code]
I'm wanting to start some vb.net programming related entirely to msn/windows live messenger My first and only question is... is it possible to write and create messenger bots in vb.net and if so also have the feature for manual text feed...
I've been asked to develop a proxy server for Windows Live Messenger that would filter out inappropriate words and replace them with asterisks for example Is this doable If yes then where do I start ?
I have tried the search button to no avail. I am attempting to make a feedback form to open on Windows Live Mail. The user clicks the "feedback" item on a menu strip and it opens Windows Live Mail with Process.start("code here blah blah.exe"). What I want to do from this is force open a new message.
With my application i call an external commandline tool that converse iso's to other fileformats. Right now i just call the iso converter and it will run in the background, when you would run the iso converter via commandline you see what it is doing, but in my application it just runs in the background.
Right now it only gives me the status after the isoconverter is done in a textbox, how could i change this so i can see live status? like i would see in the command line tool?
This is the code that i'm calling to execute the isoconverter.
I can launch Excel with the document I want using VB.Net 2010:
Dim p As New System.Diagnostics.Process p.StartInfo.FileName = "c: empmyfile.xlsx" p.Start()
Excel starts OK with the file opened. I edit the file, but when I close it down, Excel doesn't ask if I want to save changes. So it closes and loses my edits.
If I do the same with a text file:
Dim p As New System.Diagnostics.Process p.StartInfo.FileName = "c: empmyfile.txt" p.Start()
It opens (in Notepad++), I edit it and close it, and Notepad++ asks if I want to save changes.
I've now tried similar code with a Word document - and that's OK. Also with an OpenOffice Sheet document and that works as well.
This behaviour is happening in Windows 7 with Excel 2010. It works as expected in Windows XP with Excel 2007.
I need open excel sheets in an application write in VS2008 (VB.NET) and Windows 7 as OS. All seem work fine, but I don't see excel worksheet. I see Excel32 opened as process, but no window on my screen. The code I used id this:
I am having trouble creating a console application with these specifications:
* Declare variables named HoursWorked, HourlyRate, GrossPay, and NetPay, each having a data type of Double.
* Read values for the hours worked and hourly rate.
* Write the statements to multiply the hours worked by the hourly rate to calculate the gross pay. Calculate the net pay by multiplying the gross pay by 0.80.
* Display the gross pay and net pay (formatted for currency).
This is what I have so far:
Sub Main() Dim HoursWorked As Double Dim HourlyRate As Double Dim GrossPay As Double
[code]....
I don't exactly understand what it means to "read the values for hours worked and hourly rate". Does it have something to do with "Read Line"?
I really like the MSN notification popup. Basically the popup you see when you receive a new email etc. I'd like to put timers and set times so I, for instance, get a popup at 2PM saying "Don't forget..." I know I could make my own notification bubble but I'd prefer the WLM one.
I would like to create a tabular view of my data in which i would like to show dates as column header and room no as rows header. And room reservation data in that tabular form. I would also like to make date zooming from year, half yearly, month, week to day. Denote the reserved room in some color along with name too.
To my requirement, i found windows live mail's calendar control abit matching without zooming functionality.
Here is a sample of windows live mail's control: [URL]
I would like to get reference/example of control/project matching my requirement.
Hey I'm using Vb .net 2008 Express Edition and i've tried Lots of stuff involving:
Public Msn As MessengerAPI.Messenger Msn = New MessengerAPI.Messenger
and get the error: QuoteCreating an instance of the COM component with CLSID {B69003B3-C55E-4B48-836C-BC5946FC3B28} from the IClassFactory failed due to the following error: 8007000e. Would you have any ideas on how to access Msn to change Status for example.
I would like to add a window preview function (live or not) to my application. Something like the mouse-over on the vista/7 taskbar. the only thing I have is the hWND to the program's main window.
I found a great way to get the equations of calculations from application to Microsoft word file with MimeTex here-[URL]
But unfortunelly the code is only for Microsoft Visual Studio Solution under the Eq2ImgWinForms folder, but I use on my application Visual Basic language (Visual Basic 2008 Express Edition).
how could I use the same thing on my application with Visual Basic?
I need a little guidance in the right direction to help with using data from a dataset in calculations. I've watched the "How Do I" Series and it was very helpful in setting up the relations and tables. I have setup a couple tables to hold values that won't be updated and the user will never see. Lets say I have 5 columns, ColmnA to ColumnE, and the row count is variable. What I can't seem to find is an easy way to loop through using the variables. As an example, Lets say the equation would be outputted to a textbox:
textbox1.text=row1(ColumnA*ColumnB+ColumnC^ColumnD-ColumnE)+row2(ColumnA*ColumnB+ColumnC^ColumnD-ColumnE)+etc to end of rowcount
Does anyone know if a good tutorial to point me in the right direction or a code snippet that may get me started to follow the logic? I'm using VS2010Express with a SQLExpress database if that helps.
I want read data from excel file and it's done.but I've problem about excel that open from program. I cant edit or open that file from ms Office.sample:I have masterCode.xls in my local drive. with vb i open that file, read data and bind into gridview.it's work. after close program, i open masterCode.xls with ms Office, that file opened but it automatically closed.when i open vb and run program again, select the same file, read data but now its error ("File is used").
Protected Sub btnUpload_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnUpload.Click Dim objExcel As Excel.Application Dim objWorkBook As Excel.Workbook
I was just wondering if there was a way with, using VB.net, be able to create a program to detect when a message is received in Windows Live Messenger, and alert the user?Essentially, MSN is minimized in background and our program, Program A, is also running in backgroung.Friend X sends us a message, the MSN icon blinks as usualy, but also a window pops up and shows the name of the user and the message.I was just wondering if there was a way to connect to MSN in some fom to be able to do this?
