Excel Auto Filter Functionality Activation
Dec 16, 2010
In Excel 2010 (but also in older versions you can find a nice functionality - auto filter. When you just put some data in a row and press CTRL+SHIFT+L you activate Auto Filter. Now you press the down arrow and you get what I need... A new window appears. This window include buttons ordered in something like a context menu a textbox and a checkedlistbox. The windows definitely is not a classic form, because when you operate with the controls on it, the original excel windows is still the active window. The window can also be drawn outside of the main excel windows.
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Jul 7, 2011
I have AutoFilter in place in my sheet. I want to sort data using the AutoFilter itself and not by normal sort. I want the client to see the down arrow on the autofilter button, which tells that rows are sorted on this key.
I have 'sheet' as an object :
sheet.Range("A2").AutoFilter then Or something else ??(Ensure the syntax for VB.Net and not VB Script)
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May 10, 2011
I am working on a windows application where i need to use the autocomplete functionality in text box and it should take values from the data base.[code]...
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Jun 5, 2009
I am trying to just write something to a cell in a sheet and I am getting the error message:
Exception Exception from HRESULT: 0x800A03EC Stack Trace: at System.RuntimeType.ForwardCallToInvokeMember(String memberName, BindingFlags flags, Object target, Int32[] aWrapperTypes, MessageData& msgData)
[code].....
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Feb 11, 2012
With this code I import Excel to a datagridview , works fine. But how do I filter a Column lets say "Number" ? with a textbox
Dim MyConnection As System.Data.OleDb.OleDbConnection
Dim DtSet As System.Data.DataSet
Dim MyCommand As System.Data.OleDb.OleDbDataAdapter
MyConnection = New System.Data.OleDb.OleDbConnection("provider=Microsoft.Jet.OLEDB.4.0;Data Source='C:stof.xls';Extended Properties=Excel 8.0;")
[Code] .....
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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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Sep 9, 2011
I'm using EPPlus to create Excel reports. Now i'm trying to create a Pivot with a DateTime PageField, so that the user can filter the period he want to see by himself. But although i can filter this for year,month or days in the according data worksheet by default, i don't get it working in the Pivot.
Here is what i have:
Dim wsPivot = excel.Workbook.Worksheets.Add("Pivot")
Dim wsData = excel.Workbook.Worksheets.Add("Data")
Dim source = workSheet.GetDataSource
[Code].....
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Feb 26, 2010
I am trying to auto fit columns in excel using
Dim objxlrange As Excel.Range
objxlrange.Columns.AutoFit()
I am currently getting this error "object reference not set to an instance of an object" Using the keyword NEW does not work to fix this problem. Is there another way to AutoFit Cells in excel? I will continue to look for the answer and I will post it here if I find it.
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Aug 31, 2010
Via VB.Net, is there any way to access the AutoSum feature that Excel has? I have a spreadsheet that I create and populate via a datatable using my application. I know how to sum based upon a predefined range (e.g., .cells(cnt + 1, 21).Formula = "=Sum(U3:U" & cnt & ")") but is there any way that I can just call a cell in my worksheet and have it AutoSum as if I was clicking the AutoSum button in Excel for that row? This would save me a lot of coding time based upon the logic my spreadsheet is going to need.
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Mar 29, 2010
What I basically need is a Auto Sum script in Visual Basic for Excel.(Dynamically)
Instead, of having to manually insert the auto sum formula() every time I insert a new number in a new column. I want the script to automatically recognize the numbers, and either subtract, add, multiply, or divide. To get the number to get the value of the column.
I tried something like this -
MyTotal = Application.Sum(Range("A1:A100"))
' returns the total of the values in A1:A100 in the active worksheet.
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Apr 11, 2009
How do I use Excel Automation in VB.NET? Please remember to mark the replies as answers if they help and unmark them if they provide no help. Welcome to the All-In-One Code Framework!
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Jan 25, 2011
Is it possible to read an excel range when option strict is on?my test code works with Option Strict Off but 'Disallows implicit conversions from Object to 2 dimensional array of object' when Option strict is on!Is it possible to load a typed array from the object without looping round all of the elements? [code]
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Feb 12, 2010
I'm writing VB code in Visual Basic 2008 Express and can't seem to figure out how to create a new instance of Excel with VB code. The most common answer appears to be setting an object variable to 'Excel.Application', but that gives an error (Type 'Excel.Application' is not defined).
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Sep 19, 2009
This seems like is should be simple but for the life of me I can't seem to get it. I am using VB.net.I am importing a text file into Excel. Then I want to select everything and sort it based on a cell (A) in this case. So here is what I have so far.
Code:
xlApp.Workbooks.OpenText(sDump, , 1, , XlTextQualifier.xlTextQualifierDoubleQuote, , , , True)
[code].....
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Sep 12, 2011
I'm using VB.net 2005 to input data from a database application into Excel files.I un-protect the sheets, input data into specific cells using named ranges, then re-protect the sheets.
This has worked fine so far, up until I ran into a file that is protected with auto-filtering enabled. When I re-protect the sheets, I can't seem to protect it while allowing the use of autofilter dropdowns. The dropdown arrows for the autofilter are greyed out and disabled.
Using the following code to re-protect the sheets after inputting the data.
[Code]...
works fine. The sheet is protected and I can use the autofilter drop downs. But when I use that same code in my VB.net project, the drop downs are not enabled.
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Dec 12, 2010
Just looking at various ways to do so.I came accross an article which unfortunatly I can't find anymore. It explained it like this. (I'll try remember all of it)1) Put activation key in textbox12) Press button3) Checks with the FTP server if the title of a file (In the this case the license key) in the FTP server.4) If the file doesnt exist then a message box comes up incorrect license.4b) I the file does exist then my.settings.activate = 15) Next time its loaded up, the program checks if my.settings.activate = 15b) If not then an activation key must be put in and proccess starts again.
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Dec 5, 2010
So, I am already able to successfully import an excel file to sql server through my vb application BUT I want to automatically change a value in a certain column to another. To expand on this, my excel file has a column that lists test titles such as "WCOB 1120 Access Test". I want to have each specific test title changed to a number. So, "WCOB 1120 Access Test" would need to be changed to '1' before it is added into my database.
Public Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Dim myPath As String = sFilePath & sFileName
Dim ExcelConnection As New System.Data.OleDb.OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source='" [code].....
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Apr 16, 2012
i have installed my program on several computers and it works but for some reason on this one computer it doesn't work.i attached the error log. i can't figure out why it won't run. it installs ok.
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Sep 27, 2011
Let's say we have a controltab with two tab. The first tab contains textboxs where entry values are entered On the second tab are textboxs that display the results. I have noticed that if I fill up the entry values and create the binding between each textbox and their property and then I destroy it (without clearing the textboxs), the textboxs of the second tab will not display any result. I have this exemple here BindingAddition.rar
[Code]...
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Jan 11, 2011
An application I'm working with registersun-registers a group of dll's using regsvr32.
System.Diagnostics.Process.Start("regsvr32", "somedll.dll /s")
This worked fine on Pre Vista systems but this will not work on Vista7 due to UAC.
Is there an alternative method to register dll's programatically without needing elevation?
If it help's the dll only needs to be registered for the current user, could adding details to the registry directly solve this?
(The application runs several versions of a legacy application, these dll's are swapped out depending on the version being loaded)
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Oct 20, 2010
I have an application that opens and saves spreadsheet via interop.At start up I set
Code:
_excelApp.Visible = false;
_excelApp.DisplayAlerts = false;
[code].....
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Aug 5, 2009
I dont know why its giving me an error when i run this code...
Code:
Dim xlApp As Excel.Application
Dim xlWorkBook As Excel.Workbook
[code]......
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Jan 22, 2010
I'm using ODBC to export tables from a dataset to an Excel file without auto-formatting Excel or even needing to have Excel installed on the users PC. This works great but I just had a request to autosize the columns and make the header line bold. The only way I know of doing this is to fully automate Excel to control the row/column/cell formatting. Does anyone know a way of doing this without auto-formatting Excel?
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Sep 22, 2011
I have devices with unique serial number (string incremetation) ex : AS1002 and AS1003. I need to figure out an algorithm to produce a unique activation key for each serial number. What would be the best approach for this ?
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Jan 17, 2010
I have made some custom .dll's or components and then I downloaded custom webkit component and it didn't work perfectly(I mean that I always get some error code with this error: An error occurred creating the form. See Exception.InnerException for details.The error is: Failed to initialize activation context. When I try to debug the project). And if I have made a new project, and make a component with user control, and I haven't saved it yet, it will work fine, but until I save it then it will give me a designer error.
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Dec 10, 2011
Is there any detailed information if Visual Basic uses a run time stack as well as the format of the activation record the stack, return address, parameters, local variables, etc
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Mar 31, 2012
Is there any detailed information if Visual Basic uses a run time stack as well as the format of the activation record the stack, return address, parameters, local variables, etc...
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Mar 24, 2011
I am going to publish my program soon. As for the product serial activation, I have combined the user machine's CPU ID and the MAC Address to make a formula. Here is the class code to find processor ID and MAC which I have found on net and used :
Friend Function GetProcessorId() As String
Dim strProcessorId As String = String.Empty
Dim query As New SelectQuery("Win32_processor")
Dim search As New ManagementObjectSearcher(query)
Dim info As ManagementObject
[Code] .....
There a few questions I want to ask to be sure about my program activation :
- These 2 function code, Are they safe to use ? Is there any possibility that one of them or both doesn't return anything ? ( because of user permissions,os type, etc...)
- Is it possible that somehow the user machine won't have MAC Address?
- Is Proccessor ID a Unique serial for each machine in the world?
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Apr 30, 2012
I have created an Excel Ribbon Addin that has some custom features that will benefit a relatively small business niche. The target companies number less than 1,000.I don't want to limit any one company's usage of the Addin...meaning I want them to be able to install and use the Addin as often as they need to, for as long as they need to, on as many computers as they need to.
The thing I want to prevent is sharing of the Addin. There are family members in this industry, that own different companies in different parts of the country...there are close friends in this industry that each own different companies. I want each company to purchase the Addin instead of share it.I have created a License Agreement that they have to agree to before the Addin is installed. But, that is as far as I have gone with it at this point.So, this leads me to 2 questions:
1. Is it worth the investment and effort to create this type of limitation for such a small market?
2. If so, what is the best way to go about accomplishing this?
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Feb 20, 2010
This is how I handle online activation for my application the problem is that this is very poor security because i display my Username and Password. I was thinking of using Myslq but i also have to input the Username and the password into the application. What other ways do big companies like Kaspersky handle online activation.
My code
Try
My.Computer.Network.DownloadFile("FTP SITE" + textbox1.Text + ".txt", "C:" + textbox1.Text + ".txt", "USER", "PASS")
Dim auth As String = My.Computer.FileSystem.ReadAllText("C:" + textbox1.Text + ".txt")
If auth = Textbox2.Text Then
Kill("C:" + textbox1.Text + ".txt")
[Code] .....
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