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
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.
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]...
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?
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
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.
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?
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?
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)
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
So, basically it should sum up certain columns when the user enters numbers into it and then display it in the last column.
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.
Failure is not an option! But sometime you need to look at those option.
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
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?
Some Additional Information:
This is a WinForms application and the user will be picking and loading the excel file at run-time.
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 :)]
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.
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?
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
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
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.
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
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
I have a datagridview(DGV) which contains data based on a user selections from a pre-defined dataset
In point form:
User starts program
program builds datatable
user opens file and program read all data from file into the dataset.datatable
user defines the data they want to see
program displays datagrid based on dataset.datatable and user choices. (basically it displays the whole dataset and removes unwanted columns ecords)
I want to be able to export the datagrid to excel (not sure which method yet). I have tried the excelexporter component i found somewhere on the msdn forums (it exports the data to look exactly like the datagridview) but its painfully slow. It exports something in the region of 100 records per minute. Most of the time, the datagridview can contain anywhere from 3000-32,000 records. As such, at 100 records per minute, the excel generation can take updwards of 50minutes. Unacceptably slow for the purposes of the program.
What do people recommend as the best method to quickly dump the contents of a datagrid into excel. By quickly, im talking at the speed of about 10,000 records per minute. In all honesty, anything over 5000 records per minute will be fast enough, but the quicker the better!
Is there a way of creating a new dataset.datatable that is built of the contents of the datagridview and then building an excel sheet by connecting to the new dataset?
I would like to be able to export to Excel 2000-2003 at a minimum, but if i can do excel 97 as well it won't hurt.
I have a problem in exporting data grid view to excel. The problem is while i export the contents are exporting but the 'column header' is not exporting to excel. can any one give me solution its urgent this the code which im using.[code]
I am filling a datagridview with very lengthy results. Roughly 60k rows on average. I am filling them via an oracle database using a table adapter. The records then have a filter placed on them in the datagridview so the results displayed are a bit different.
My problem: I built an export to excel function which populated a dataset and then red through it and wrote to excel. Bad idea with the amount of records I am using. I tried just writing the records straight to a csv file using streamwriter but I don't very much like this way.
My proposal: I would like to fill an array from the datagridview and then be able to dump the array into excel. However I am having some trouble finding examples on creating an array from a datagridview.
i have a datagridview in vb.net that is filled up from the database. I've researched and i found out that there is no built in support to print directly from datagridview. I don't want to use crystal report co'z im not familiar with it.
I am looking to save my DataGridView to Excel. I have 2 Tabs on my Windows Form that are both linked to 2 separate DataDridViews. The first one I can save to excel no problem but am having difficulty with the second one. I have include my code.
Private Sub Button3_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button3.Click Dim xlApp As Excel.Application Dim xlWorkBook As Excel.Workbook
I have been trying to make a problem, that allows me to open a excel worksheet into the datagridview, and then print the datagridview out. However, the code that I'm using now to import the excel worksheet into the datagridview, doesn't import the images from the excel worksheet.[code]Is it possible to get the correct posttion of each table, and the images, so if i print the datagridview out, it look just like the excel worksheet, but was just edited before printing.
I have done a google and see that many people have asked the question on how to export a Datagridview to a Excel (.xls) file. For some reason I cannot seem to get it to work (i have gotton the program to open an Excel and save it, all hidden in the background). I use a bit of the coding from this source code [URL] but modified it and incorporated it into my program. It connects an OLE Database connection with the excel sheet... but what i want to do is beable to alter the sheet in the datagridview and export it back to an excel sheet. I am not trying to sound pushy when i say this but... if you download the source file i am using you will get a really good idea of my situation..
I'm using OLE to connect to a database using VB.NET, and show the results in a DataGridView. I want to export the data that is in the DataGridView to an Excel format file, i.e., the user can save the content of the DataGridView as MS Excel file.