I am working with some prewritten VB code ,and this portion of code opens a new excel spreadsheet . I would like to instead , open a existing excel spreadsheet that I would like to have a template that explains my data that is loading into it. Could you please give me an idea what I would need to do with this portion of code?
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I want to know how to open an existing Excel Spreadsheet into a MemoryStream to that I can write to the Response object.
Dim ms As MemoryStream = CreateBasicWorkbook(True)
Dim FileName = "\Ihe-webprod1tvinjurytrackingdocuments$ExcelSpreadsheetsHours.xlsx"
I need the code to get File the xlsx file to a memory string
Response.ClearHeaders()
Response.ClearContent()
Response.Clear()
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I have questions on this [FAQ's: OD] How do I open an existing Excel Workbook? I have playing around with the code little. Trying to mod the code to display the selected path and File name in the textbox I have on a form. I can to get it to work right
View 1 RepliesI am writing a windows application that interacts with data stored in an Excel Spreadsheet. I merely want to change the text value of a cell that already has text written in it.
View 2 RepliesI am looking for an example to export the data from a dataset to an existing excel speadsheet in vb.net 2005?
View 6 RepliesI have a spreadsheet control on a windows form that I would like to populate with data from an existing worksheet (myworkbook.xls, sheet1).
View 4 RepliesHow to write to Excel worksheets without open Excel Application.[code]...
View 4 RepliesI have posted this in other parts of the forum but either im not understanding what they are saying or they arent understanding my question.My goal is to open a word document or an excel spreadsheet from within my seperate VB app. bounce some of my calculated variables and images out to specific markers in that document, and then print the document.
I can Open my office doc, I can send the test variables out the way they need to go out. I cannot get an image to go out to th open document from within my vb app.I feel like it is something relatively dumb in my code but i cannot figure it out.
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The issue i have with that line is that even though i have made a picture object in my excel sheet called Picture1 it is not public and i cannot access any of its members to modify it.
I'm trying to open open an excel workbook thats going to be used as a template that i'm going to paste raw data in. It comes up with as an error saying that the file is missing, but its not. The path and file name are correct. So I'm curious if its something else or what.[code]...
View 3 RepliesI will do a program then save it and close it out but when I go back to open it it won't open. It just sits there. I'll click on Recent Projects and they won't open. I'll click on Open Project and select a existing file and it will just put it in Recent Projects but won't open it up.
View 2 RepliesUsing the new Visual Basic 2005 Express Edition Beta.Created a project, form, controls, etc. Worked great. Love it, compiled perfectly.Saved everything, closed the program, went to bed. Woke up, opened the project, but now CAN NOT open the form (form1.vb) in Designer mode!! I can open the code, it's all there, exactly as I left it, but cannot get back to the designer mode to (easily) add more controls to it!F7 just opens the code, right-click just gives me code option, not designer option.This is amazingly frustrating..
View 1 RepliesI want to open an existing VB class file, add a few properties and close it again.
Simple enough, I thought: Take the CodeDom, a VBCodeProvider, parse the code (using the Parse-method), then identify the location where I want my stuff added (doubtless using some nifty LINQ expressions), add a bit of code and then have it generated and here we go.
Now I see that Microsoft apparently added the Parse method only for the fun of it but never implemented it.
What's the story here? Can I only generate code from scratch? Is it not possible to load existing code?
I want to use my word add in to open an existing file, the code is:
currentDoc = app.Documents.Open(currentFile)
where currentFile is a string containing the path to the file I want to open, when ever this code runs, there are no errors, but I also cannot see the document
edit: the program first closes the 'currentFile', adds something to the package, then tries to open it again with the line above, when it closes the document the word application stays open with no document in it, but when it opens it again it is not seen in the application, but the document is open
I am trying to use the open file dialog box in VB 2005 to open up an existing txt, or rtf file from a directory into a rich text box. I am able to get the Open file dialog to appear and the directories, but when I try to open the file it doesnt import it into the text box. Here is the code I am using
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I have a VB.Net program that reads in a flat file, and then parses line by line, formatting the data into different spreadsheets in an excel workbook (each line can be any 10+ different record types so I parse and put in appropriate excel sheet).
For smaller sized flat files (under 10mb), the parser works great. However, I am trying this on a file that is over 120mb (400k+ lines). While running, I will get an OleDBException saying that the spreadsheet is full. Now I am pretty confident that Excel can handle a much larger data set than a flat file. So I assume this exception is not giving me the true story as to what is really occuring.
I open a connection, and then parse each line in the file, inserting each row into the excel file. I assumed it would be bad performance wise to open/close the connection between each insert. Could this be causing the issue? Any ideas what I need to do to handle such a large file? There are cases where the flat file can be over 500mb.
To actually do the insert into excel, I am just doing the following (I construct an sql query based on the type of row and values parsed):
Dim conn As New OleDbConnection()
conn.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + ExportLocation.Text + "" + importFileName + "-PVF.xls;Extended Properties=""Excel 8.0;HDR=YES"""
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I have a program that runs some data manipulation on a file when it is double-clicked and then displays this to the user.However, when I double click on the same file type of a different file it opens in a separate instance of my program instead of the same instance already running, i.e. some message that says would you like to reload file, YesNo, and then given the answer perform the action required.I have found some code to stop a second instance from opening, but this is inconvienient for the user to close out of the program everytime they want to view a new file.[code]
View 6 RepliesI have successfully created a new excel with the code
[xlApp = New Excel.ApplicationClass]
and can transfer and manipulate data from my VB2008 form back and forth with the spreadsheet One time only each time I try and add additional data it wants to open a new workbook with the same name but cant seem to get it to just add the additional info.
In my scheduling app I am exporting information to an excel file. When the first export runs it opens a new instance of an excel workbook. I have decided to save each schedule (AMRN, PMRN, AMTech, PMTech etc) to separate works sheets instead of appending the first worksheet. This way when the shedules need to be printed the whole workbook can be selected to print. When I try to open the existing workbook if it exist I get an error. Here is what I am trying to do.
vb.net
Dim xlApp As excel.Application
Dim xlWorkBook As excel.Workbook
Dim xlWorkSheet As excel.Worksheet
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I am currently writing a program in VB 2008. Here is what the program is intended to do: I need it to have two forms of input, so I want it to open existing text files and create new ones. Once the user has selected what input to be taken (either a file is opened or a new one is made, guessing multiple forms need to be used here) the user will then take the text file either created or opened and then be able to click a button which will sort all the text in the text file into alphabetical order and then display the results to the screen. While this happens, I need the words in the file to be counted by a counter (so a loop i guess) that then displays on which line each word appears on. I then need this information to be displayed in a text box on screen.
View 2 RepliesIs it possible to change an Icon of an existing application? I mean script in vb an application that allow to change any icon of apps. If its not , create a shortcut with the icon we want of any apps.
View 1 RepliesI have a form already created, but now want to expand the application.I created a MDIParent, but cant seem to find how to change the existing form to an MDI child.
View 3 RepliesI want to create VB.NET code that will change the filename of selected image files that are already stored on my ISP's web server. I know how to do this by reading the image into memory and then saving it as a new file. However, I would prefer not to regenerate the image. I just want to change the filename. Is this possible?
View 2 Replieshere is a copy of my current code. Am trying to open an existing Excel spreadsheet then retrieve the old balance data refigure the new balance and store new data into the spreadsheet. Am I on the right tracK, or way out in left field?
Private
oWB.SaveAs(
"Checkbook.xlsx") Nothing
oWB.Close()
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I'm trying to export a datagridview to Excel and open the Excel spreadsheet (not SAVE the worksheet).
Public Sub ExcelRpt(ByVal DgvName As GridView, ByVal url As String)
Dim xlApp As Microsoft.Office.Interop.Excel.Application
Dim xlWorkBook As Microsoft.Office.Interop.Excel.Workbook
Dim xlWorkSheet As Microsoft.Office.Interop.Excel.Worksheet
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I made it through opening an Excel Worksheet, and now I"m getting an error when I attempt to open the worksheet called "DTNPrice". Most examples I have found relate to creating a worksheet. I'm using Visual Basic 6 and Excel from Office 2003. I just need to open the worksheet and place about 300 lines of data in the worksheet.
View 1 RepliesHow can I change a Icon of a EXE that is already build with .Net. I know I can change it with ResHacker but is it possible to change the Icon with .Net Code.
View 20 RepliesI'd like to utilize Select & Insert statements on a DataTable in VB.NET or C#.
Example:
Dim Results as DataTable Results = Select * from SourceDataTable where PlayerID < 10
Is anything similar to this possible?
I am trying to edit, add, and update my database. I have the code for updating and it updates fine (I can see the modified time on the file), but I was wondering why none of my changes were being saved when I closed the window. Then I realized I was an idiot and I don't have any code to actually accept edits on this form, I just have code for updating and adding new rows It wouldn't update without me telling it which rows have been edited and need updating, right I mean I can't just type a new value in the textbox, click save, and expect it to save the change.This is the update and new row code I'm using:
Private Sub SaveToolStripButton2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles SaveToolStripButton2.Click
Try
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I've seen this great example of serial communication in VB.NET[URL]..I try to use it in a project I am working on but somethings are not clear to me.1: Now the send and received data is shown in one RichTextBox but I would like to split this into two RichTextBoxes (RtbSend and RtbReceived).It is unclear to me how and were data is assigned to the RichTextBox?
2. the received data is shown in the Richtextbox as one long line, I would like to get a new line for every send message.So for example: I I send "test" four times, I would like to see:The example describes that "comPort_DataReceived" is executed when data is waiting in the buffer. Where can I see the eventhandler responsible for this? How does it know data is waiting?The problem is this kind of coding is a bit to difficult for me. I want to understand the code before I implement it into my project. I understand most of the code but this is unclear to me.
I am writing an app to be a single button failover of a set of mirrored SQL servers. The app has to handle several other functions (enable/disable and start/stop of services, writing to local registry, copying files from server A to server B, initiating stored procedures, etc.)I have a collection of labels that indicate the status of 4 services on 2 servers, I wrote a function to check the services when passed the machine name, and the service name. Originally I just called the function 8 times (4 services, 2 machines) and populated the labels 'manually'. I have all of this within a timer so that the service status is refreshed every couple seconds. Id like to clean up the code to a single for/next loop that operates on 2 arrays (an array of service names, and an array of labels) such as:
'**Fetch_Status is the function that gets service status, it accepts 2 strings, machine name
'**and service name and returns status "running", "Stopped", as my_status
Dim Services() As String = {"Service1", "Service2", "Service3", etc.}
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The only reason I want the control array is to be able to use the .Text and .BackColor properties of the labels in the loop. If I make an array of strings with the label names it doesnt seem to pick that up.
