C# - Converting Into Integer In Excel Using EPPlus (asp.net)?
Jun 18, 2012
I am loading data into excel from datatable using LoadFromDataTable method then changed cell format to integer still it is showing error "The number in this cell is formatted as text or preceded by apostrophe". cell was showing to right side only and number format only on cell property.still I am not understanding why I am getting this error??.
Dim wsManufacturing As ExcelWorksheet = pck.Workbook.Worksheets.Add("Manufacturing")
wsManufacturing.Cells("A1").LoadFromDataTable(dtManufacturing, True)
Using col As ExcelRange = wsManufacturing.Cells(2, 2, 2 + dtManufacturing.Rows.Count, 2)
[code]....
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May 29, 2012
I am using EPPlus 3.0 (codeplex latest library) library for download excel file. Everything working fine but some columns showing with "_x00D_" string on data. I researched in google, everybody saying it is newline character. I tried all scenarios still doesn't work.
[code]...
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Oct 17, 2011
I have an asp.net application that is exporting data to excel. I need to shade the cells in the excel file.I would like the 1st row to have a darkgray background. The second row to have a light graybackground and the 3rd row to be regular white. Then loop (darkgray, lightgray, white etc).
Currently, using EPPlus, this is my code:
Dim colIndex As Integer = 1
Dim rowIndex As Integer = 1
Dim xlRow = excelWorksheet.Row(rowIndex)
Dim xlCell = excelWorksheet.Cells(rowIndex, colIndex)
[code]....
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Jun 16, 2012
Is there any function in VB.NET to take the string "twenty" and convert it to 20?
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Dec 27, 2010
What would be the best method of converting an integer to time?
253 would be 00:02:53 123456 would be 12:34:56 1 would be 00:00:01 etc
Can I use convert.todatetime?
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Jan 22, 2009
I have a textbox which the user will enter a number into. I then have a label control which will perform a maths operation and write out the resulting answer; atleast this is whant I want anyway however this is not happening.
The code I have so far is
Protected Sub btnWork_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnWork.Click
Dim Work As Integer
[Code].....
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Mar 2, 2012
I'm working on some code in VB that can get the average time from the speed of button press. I've got the maths done however I'm having a problem converting a TimeSpan declaration into a Integer where it can be divided and made into a average.
Maths for code:
2nd click
click count = 2
average= current time / 1
so current = time click count - 1
[code]....
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Mar 28, 2011
Currently using VS2008, VB.NET, SQL.
I have a FormView from a Data Source that is getting some fields that are stored as Decimals in the SQL Database.
I am grabbing the field from the FormView as such:
Dim AvgTicketL As Label = CType(frmMerchantProfile.FindControl("F10Label"), Label)
I need to take this value, and convert it to an Integer, then send it along to an API. I have the API Calls done, tested and working, but I'm getting an error as when it is getting this value, the API is returning "Must be an Integer" error.
What I have tried so far:
Dim AvgTicketL As Label = CType(frmMerchantProfile.FindControl("F10Label"), Label)
Dim AvgTicket1 As Integer
AvgTicket1 = Double.Parse(AvgTicket.Text)
Do something with AvgTicket1
I have also attempted to Round the Value, then convert it and call it - no luck.
Checking the value of AvgTicket1 (Writing it out to a Label or Response.Write) shows "100", where the database value was 100.00. But the API is still getting 100.00, apparently. Any other conversion method that I've attempted states errors that the Label cannot be converted to Integer.
What are some methods I can successfully convert this value to an integer from a label?
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Aug 1, 2009
I am interfacing my pc to a device called a MiniBee which is basically a usb digital output adapter to allow electronic devices to be controlled by the pc. So, I need to be able to individually address the output channels of this device, the only problem is the DLL supplied with it will only accept an integer value which represents a binary instruction if that makes any sense. I have basically got 8 public boolean vars OUT1, OUT2 etc that I need to use to turn on/off the outputs by them being set to true/false.
So there are say 8 digital output channels to operate and it has to work like this:
SetOutputs(1) would turn on output 1 and turn all others off
SetOutputs(2) would turn on output 2 and all others off
SetOutputs(3) turns on 1 and 2 and all others off
How to turn my public bool vars into an integer based on what is set to true/false if you get my meaning as there must be an easy way but working it out individually there are far too many possible permutations.
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Mar 17, 2009
i have a question... If i have a ListView and i have a subitem with the text 140.00, what can i do to make that string an integer?
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Nov 29, 2009
I have query that involves a cross-language operation, namely converting 4 SBytes to a signed integer. The source language for this operation is Java, which utilizes the ByteBuffer in order to extract a signed integer from the data stream. The inner workings of ByteBuffer are at best a black box to me, as I haven't been able to find any hints to what actually goes on when Java extracts the integer. [Code]
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Jul 12, 2010
How to convert the integer number into currency format in vb.net 2008.
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Feb 2, 2012
Working on a personal project.Originally had the file loaded had the program read a number and had trouble converting that number of total seconds into a TimeSpan.Finally got it working with a simple code, after COUNTLESS tried of different code.[code]Now I'm stuck converting that Timespan (in the DD:HH:MM:SS format) back to a integer of total seconds.Tried a bunch of codes I could think of but it was time that I had a fresh idea from other people.
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Oct 18, 2011
I am trying to wrap a value in a cell using EPPlus and VB.net / ASP.Net
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Oct 31, 2011
I'm using EPPlus 2.9.0.1 with Visual Basic.I have a DataTable with 35 Rows and 4 Columns and the code below:[code]When method 'LoadFromDataTable' is called, I get an ArgumentException (Negative row and Columns numbers are not allowed). I don't have negative numbers in row or column numbers, as far I know.
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Jun 28, 2009
I have a small but complicated excel file I need to convert to vb.net...
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Jul 3, 2012
am doing a application on excel spreadsheet converting to .exe
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Oct 11, 2009
I'm trying to create a code to open a new workbook..once it's open I want to save it in numbered order. I have everything else in the code complete except how to finish the integer. I know this should be easy but I'm having a total mind block. [code]
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Jul 1, 2009
[Code].....
I am writing a VBA code for testing different combination of 24 variables and recording a result which corresponds to each combination of 24 variables. so I have an equation with 24 variables and one result. In excel I have one column which contains the 24 variables and the column next to it contains a figure which shows the result. what I need to do is to write loops to change the 24 variables between 1,2, and 3 and then record the result of the equation for each combination of 24 variables. I have written the loops (24 loops) and can record the result for each combination, what I have to do at this stage is to record the combinations which relates to each result.
As there is only one result for each combination of 24 variables I was wondering whether I can tag each variable (in each cell) in a way that in the final sheet in the cell next to the result cell I can write for example 111123123111233311121232. This means that after each loop I am taking the values for each variable in 24 cells and put them all together in one cell in the final sheet. These variables are changing in each loop, the label should change as well after each loop so after the completion of the code I can find out which combination relates to which result. I have tried to define an array or matrix but I couldn't fix the problem. This is the input sheet (the code changes the values in the cells in A column after each operation)
[Code]....
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Oct 15, 2009
Need to VB(QTP) Script code for converting an Excel sheet to an access database table. Is there any way to import the selected columns to in to the access database.
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Jul 9, 2011
I have written a VBA (Excel macro) to open a workbook, and save it as a semicolon .CSV file, and then close it self. Excel on the server at work has a nasty tendency to start in safe mode (or at least ask if it should start in safe mode), making my Open-And-Shut macro fail. Now I've rewritten the program into VB.NET code (vs2008), but it creates a true .CSV (comma separated value), and I need semicolon. The excel file contains "last name, first name" making comma separation useless. Also making it impossible to substitute "," with ";" [Code]
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May 9, 2010
Using late binding i have set the numericupdown maximum to the column's count of the excel worksheet. Now the Min and Max of NumUpDn is 1 and 16384.
Now i want to change the numeric value to column name i.e
if the user selects 1 then "A" , if 26 then "Z" ,if 27 then "AA"...200=>GR
till 16384 (if excel 2007)
till 256( if excel<2007)
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Mar 23, 2012
I am pulling two fields and putting them together with a "-". When I export to excel it seems to think that the string is a date and converts it from 11-11 to 11-Nov. I can't seem to figure out how to fix this.I am exporting a gridview into excel. This asp.net using .net 3.5 and vb.net within VS 2008.
Response.Clear()
Response.Buffer = True
'grab filename from filename box
[code].....
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Feb 25, 2008
I am using VB2008 and have an integer value.How do I export it to an exisitng Excel file, I want to put it in a specific cell.Also, I may have the need to do this for an array in which I would like to put in in consecutive cell in Excel.
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Oct 18, 2011
In VB6 I could assign an Excel range directly to a variant array dim vArr as variant vArr = xlSheet.range("A2:A10").value and then work with vArr to pull out the values I needed. This doesn't work in VB 2010. Is there a replacement procedure to allow me to read in a range (perhaps large) all at once and then process the data without needing Excel?
[Code]...
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Sep 25, 2010
ive got some simple problem i cant understand how to solve.
str(1) is an array and integer(or double, tried both)
a(1) is an array and integer (or double, tried both)
a(1) = a(1) + 1
Label1.Text = str(1) + a
the big part is where i get: operator '+' is not defined for types 'integer' and '1-dimensional array of integer'.why do i get that message and what does it mean? how do i make the code do what i want?
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Aug 11, 2011
I faced an error when upgrading VB6 code to VB.NET. The error occurs at AddressOf WindowProc
AddressOf expression cannot be converted to 'Integer' because 'Integer' is not a delegate type
My declaration for SetWindowLong is:
Declare Function SetWindowLong Lib "user32" Alias "SetWindowLongA"(
ByVal hWnd As Integer,
ByVal nIndex As Integer,[code]....
What is the reason for the error I get?
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Apr 25, 2011
I'm trying to create a linked list of an array of integers. Why is the following implicit conversion required?
When I run the code that contains that conversion, I get the following error.
As a real-time data acquisition user control data (a packet of an array of bytes) arrives every second, is converted into an integer array and inserted into a linked list.
The most recently arrived data is painted as coordinates on a grid at the right of a PictureBox using Graphics.DrawLine (pen,X1,Y1,X2,Y2).
The oldest data (arriving 120 seconds ago) will be drawn at the leftmost portion of the Picturebox.
Why a linked list rather than a list? To display 120 views of time sequence data, the draw routine the most recently inserted node to a node that points to Nothing. How do I limit the length of the linked list to 120 nodes and always ensure that the last node points to Nothing?
Do While Not item Is Nothing
item = item.NextItem
Loop
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Aug 3, 2009
I am a newbie in VB and I got a piece of code which can display the current running program. I need to use that in VB2005 and I got the below error message. Can anyone help how to fix it?[code]
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May 13, 2009
I'm trying to convert a VB6 project to .NET, but I get problems with some callback functions, and the following message comes up: "AddressOf' expression cannot be converted to 'integer' because integer is not a delegate type" I've seen several solutions to similar problems like this, but I am not able to understand this issue with delegates.
After the conversion, the code look like this:
Declare Function vsmsgwSetDataPackageCB Lib "vsmsgwW.dll" (ByVal PACKAGE As Integer, ByRef arg As Integer) As Integer
Dim arginitP As Integer
[Code]...
Which gives the error: Method 'Public Function PackageCB(HisNodeID As Integer, ByRef data() As Byte, ByVal length As Integer, ByRef arg As Integer) As Integer' does not have the same signature as delegate 'Delegate Function DelegatePackageCallback(hwnd As Integer, lparam As Integer) As Integer
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