SUMIF Calculation (similar To Excel) In Datagridview
Mar 2, 2010
I have written a code that performs calculation similar to SUMIF function used in excel. My data is in a datagridview and is all dynamic. My data is in the following format
X1 X2 Yj
1 1 11
1 2 12
2 1 13
[Code].....
I am getting a PE value for every cell in the code. How can I modify my code to get the results above. Kindly guide me through it, I know I am probably missing a minute detail somewhere but I am really struggling with this.
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Jul 2, 2010
I am trying to essentially convert an Excel spreadsheet into a Windows Form. On the first worksheet I have setup an IF statement to work as a search function =IF(C10="","",VLOOKUP(C10,'Price List'!$A$2:$D$40008,2,FALSE)) to read a price list on a separate worksheet. It works by taking a partnumber then puts the description in the next column (description column) and then the price in the "price each" column then finally totalling the row based of the quantity selected (see below).[code]...
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Jun 22, 2012
een using excel extensively. In excel I use vlookup function to connect and retrieve data from other workbooks. I want to know how I can do it in VB. So far I have created a form.The form has say three text boxes viz (i) A unique Number (ii) Name (iii) Address. I want that when I write the unique number in the text box for unique number the other two text boxes i.e. of Name and of Address should be auto populated. I have also established and tested the connection with the access database file using ADO.NET. I do not know whether I need to write an SQL or LINQ query for this purpose or I should write some codes. What should i do it and how should i do it?
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Nov 12, 2010
I have a flow document table with text in it. The text some timess just on one line , often on many lines, that means it could include a return and a tab spacing (all in the same cell).I want to put the data from the table to the clipboard in such a way that i
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Sep 12, 2010
I have datagridview, wich have 5 columns
example:
id supplier bought payed sum
1 a 15
2
2 a 20
[Code].....
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Mar 26, 2010
I have combobox in a form. The combobox is bound to a table and displays the list of values as expected. What I want to do is also bind the combox to another field in a different table similar to the way the datagridview with combobox works. That is the dgv is bound to the combobox column but the dgv's bound value sets/reflects the value selected by the combobox. I can't figure out if this is possible with a standalone combobox.
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Jul 26, 2010
I'm trying to group similar items together, for example, the image below.
I wish to group the "apple" together and once it is grouped, I want the average value from the two values.
Here's my codes.
VB.net
Public Partial Class MainForm
Public Sub New()
[Code].....
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Aug 17, 2011
I learned somewhere that it is a good idea to set Calculation mode to manual in the beginning of an Excel Automation in order to speed up execution. [code] I cannot tell, from the documentation I have seen, how to get any clue what this exception is about. Does anyone know what the issue is?
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Jun 17, 2009
Error: System.Runtime.InteropServices.COMException (0x800A03EC): Exception from HRESULT: 0x800A03EC is thrown after execeution of Microsoft.Office.Interop.Excel.ApplicationClass.set_Calculation(XlCalc ulation RHS)
Out of nowhere COM start throwing exception when I set change excel's Calculation property. Line of code that followed set_Calculation was.Workbooks._Open. This used to cause exception every second try. Than I changed order, first open workbook and than set calculation property. Amount of exceptions start decreasing than I added thread.sleep(200) and exception is not thrown anymore. This happens only on one some of user machines while others are fine.Application itself is single threaded so this delay should be of importance if and only if set_Calculation is executed asynchronously. What I'm missing here?
[Code]...
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Oct 19, 2010
i am choosing a flight that i want and then the system will go tho another form where it will show the details about the flight in datagridview..after we choose which flight to take there is 2 combobox where u can choose hw many adult and hw many child...at last there is a calculate button where it calculate the total price...the peradult price n perchild price will b stated at datagridview....the total price calculated will b displayed in a textbox...
this is my coding
Dim adult As Double
Dim child As Double
myconnection = New OleDb.OleDbConnection(myconnectionstring)
[Code]....
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Oct 6, 2011
I have DataTable, and is bound to DataGridView. So, when the user inputs some values in 4 columns, it would calculate the sum and put it in the last 2nd last column.
Here's the code that I'm experimenting:
vb.net
Private Sub DataGridView1_RowLeave(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DataGridView1.RowLeave
Dim i As Integer
Dim intTotal As Integer = 0
For i = 5 To DataGridView1.Columns.Count - 3
[Code]...
So, basically it should sum up certain columns when the user enters numbers into it and then display it in the last column.
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Jun 30, 2010
I've spent the last three day on this. Hope someone can shed some light on the problem.I have a datagridview I which to total a column and place in a textbox. with the coding below I do get the first number and it is place correctly in the textbox but when I complete the data row and move to the next, I receive the following error. "object cannot be cast from DBNull to other type." Read and tried a lot of ideas on line , could not get any of them to work.
[Code]...
Failure is not an option! But sometime you need to look at those option.
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Dec 19, 2009
I need to store a calculation to use later and obtain a new calculation
[Code]...
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Mar 28, 2010
how can i add two excel sheets with numbers and the equal (similar)numbers to save once
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Jan 10, 2012
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
[code]....
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May 20, 2010
I know how to check whether an item exists in a list using (MyList.Contains), But I do not know how to check the whole list. For example (use one button and one richtextbox):
[Code]...
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Dec 12, 2010
I can export DataGridView to Excel.BUT
Private Sub ETE_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ETE.Click
exportToExcel(Me.Registration_FormDataGridView)
[code].....
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Jul 28, 2010
I have data that I'm taking from an Excel sheet with the ultimate goal of displaying in a DataGridView.
Currently I am just going over the UsedRange of excel data and plugging it into a datagridview. This works fine, but can get bogged down when there 100+ rows of data.
I have also toyed with going from excel into a dataset (using the same wasteful method), and as expected it takes about the same time to load the data. Maybe use the XML from the Excel file?
EDIT:
Some Additional Information:
This is a WinForms application and the user will be picking and loading the excel file at run-time.
EDIT
The Return of Some Additional Information:
The Excel file is located on the user's pc. The general assumption is that they will be loading different files each time they use the application. [not sure if this helps, but might be good to know :)]
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Nov 10, 2009
how to add a specific row from datagridview into an excelI have checkboxes in the datagridview. So I need to add only the checked rows into exce
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Nov 15, 2010
How do we create an excel file for each datatable of a dataset ?
I tried some codes I found in the net, they don't seem working, so can someone provide me a tutorial or code that shows how to create an excel file from datagrid view ??
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May 27, 2012
I am required to make a program for a small company that reads data from an Excel 2010 file. I have no issues reading this data into my DataGridView control and displaying it for the user.
However, one particular column header is titled "Complete", to which the entire column will either have a "Y" or "N" value. What I want to do is to fill the entire data set from the Excel file (I have done this already), but I need to only display those rows that have the "N" marked under the "Complete" row.
I imagine this would require a For...Next loop based off the DataGridView1.RowCount, but I cannot figure out how I would add just one particular row at a time after checking for a "Y" value in that column. I am only familiar with filling the entire DataGridView.
I included a picture of a sample of what this program would look like (this is how the customer wants it), in case my explanation was not enough.
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Apr 24, 2012
I found this Code Snippet GridView Export to Excel, that works but does not export the last column and is a little slow.
Private Sub ButtonExport_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ButtonExport.Click
Dim rowsTotal, colsTotal As Short
[code].....
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Oct 10, 2010
I am getting
IndexOutOfRangeException was unhandled
ON
Dim range As excel.Range = xlWorkSheet.Range("B2:" & alphabet(headerText.Length) & (items.Length + 2).ToString)
Imports excel = Microsoft.Office.Interop.Excel
[Code].....
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Aug 21, 2010
So I'm working on this project. I got around 60 images or so which I need to OCR, then I'll be inputting that data into my program which formats it and inputs it within this DataGridView. Now, I need the same data to be exported into an excel file. I saw several tutorials online but none of them are current (for VB 2008 or 2010). Either that, or they're not for VB.NET Windows Form Application. [I'm using VS 2010]
I'm fairly new to Datagridview as well. Just learnt how to add data to datagridview using this tutorial:
http:vb.net-inform...ridview_add.htm I was hoping you could help me out with where to start once I get my data all set up in the datagridview?
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Sep 14, 2010
I have data exported from DataGridview to Excel Sheet but I have problem viewing the excel sheet until I log out of the Application completely. I have these code to release the link. What am I doing wrong?
'Save the workbook and quit Excel.
oBook.SaveAs(sSampleFolder & WrkSht)
oSheet = Nothing
[Code].....
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Nov 5, 2010
I have a datagrid and am using excel to store te data in. how can i delete ive tried a few things but nothing seems to work.including just the top line of code with dispatch = @Dispatch, and so on with all my column names
[Code]...
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Jun 28, 2011
Can anyone help me on how when I click on a button in VB, it will browse an excel file that will display its information in a datagridview..Then when I click on update after it will save the result in the datagridview in an access database.
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Mar 3, 2011
this whole code was working before and i don't know what happens..Trying to export to excel.
[Code]...
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Aug 15, 2011
I need to export data from excel to datagrid and have done it..whole excel data is displayed in datagrid..coding but i got an error when Conversion from type 'DBNull' to type 'String' is not valid coz' i have some null data in my excel file
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Jun 6, 2011
I am creating a db with an interface from VB.Net 2008, what I need is to export to excel from a datagrideview by clicking on a button. I have found a code but its giving me errors, I posted the code maybe u can find the error or point me to another method
Imports Excel = Microsoft.Office.Interop.Excel
Imports System.Data
Imports System.Data.SqlClient
[Code]....
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