Using Excel Style Pivot Table On DataSet In Form
Aug 23, 2011
I have three tables, the extremely simplified versions of which are:
Practitioners:
practitioner_id :: int
name :: nvarchar
Insurances:
insurance_id :: int
name :: nvarchar
InsuranceLink:
practitioner_id :: int
insurance_id :: int
So, the practitioner table contains a list of practitioners, the insurance table contains a list of insurances, and the link table represents which practitioner supports which insurance. Now, I need to create a view which can display the information like this:
ViewTable:
practitioner_id :: int
practitioner_name :: nvarchar
insurance_1 :: bit
insurance_2 :: bit
.....
insurance_100 :: bit
In other words, the columns in the view are the ID and name of the practitioner, and every insurance that exists in Insurances (with the insurance name as the column name (there is an enforced condition that insurance names are unique)). The cells in the insurance columns will indicate if that practitioner supports that insurance. Or better yet, is it possible to use an excel-style pivot table on a DataSet in a VB.NET form?
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May 2, 2012
I am creating pivot tables in VB.NET and have run into a problem I did not think would be as difficult as it is turning out. When I create a pivot table it adds in subtotals for each row and I do not want that. In excel you just drag down the subtotals option and tell it to not display subtotals. I looked into the VBA for it and it is several lines long of this format:
ActiveSheet.PivotTables("Main Highway Pivot").PivotFields("Division"). _
Subtotals = Array(False, False, False, False, False, False, False, False, False, False, _
[Code].....
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Oct 28, 2009
I'm trying to generate a pivot table in Excel using VB.NET 2008. I need to bring the data into one tab, and then generate a Pivot on another (i can't do this externally because the data is pulled from a bunch of different places). Currently I'm doing this pivot in the actual code, and then writing to Excel, but it takes up a lot of resource and time and this will make things much easier! I created a sample list below, and I am trying to generate a sample pivot table based on it, but I'm getting errors:
Dim wb As Excel.Workbook
Public Sub ExcelGen()
Dim ex As New Excel.Application
[code]....
The error I'm getting right now is the no object reference set error on the "pCat =" line...
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Jan 7, 2009
How to create a pivot table on an Excel spreadsheet via code. The reason I took so long is because I added a reference to the Excel Interop 12.0, rather than the Excel Interop 11.0. I assume that 12.0 is for Excel 2007, while 11.0 if for 2003 (or whatever I have). If that assumption is correct, this will cause me a bit of trouble, as all the people using the program are in the process of moving from 2003 to 2007, and I should have moved myself, but didn't for some reason unknown to me (I thought the upgrade was pushed out to my computer when I was at work, but I don't seem to have it anymore). However, my concern is that the objects needed to create a pivot table in the 12.0 library are significantly different from the objects needed to create a pivot table in the 11.0 library.
I don't believe I can late bind to solve this, because there will need to be different steps taken depending on the version, since the objects have different interfaces. It appears to pertain only to pivot tables (for what I'm doing), as I was able to create the workbook, the worksheets, and export all my data with some old code that I had, and all of that worked with both libraries, the difference is just with the pivot tables because the interfaces have changed, such that the methods needed for one library don't even exist in the other one (and the code crashes, but that's probably because I have the PIAs for 2003 installed, and not 2007).
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Aug 7, 2011
I want to change the source data for my pivot table in Excel using VB.Net to a named range.
I have : table.ChangePivotCache(wb.PivotCaches.Create(SourceType:=Excel.XlPivotTableSourceType.xlDatabase, SourceData:=sheet.Names("name_of_NamedRange").RefersToRange))
Exception : The parameter is incorrect. (Exception from HRESULT: 0x80070057 (E_INVALIDARG))
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Jan 11, 2011
I have built an Access 2007 database with some data stored in it. I have managed to export data using VB2008 from that database to Excel 2007 and have it automatically draw charts based on this data and a query in the Visual Basic Code. One of the results looks like this:
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Jul 2, 2009
I have a large form that is set up from master-detail datasets in Visual Studio 2008.I havene master table with a large amount of detail tables. Several of the detail tables also have detail tables linked.Now I need to add a master table that sits on top of my existing master table making it a detail table.
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May 21, 2010
I have a datatable in memory (a flat file, no primary key or relation to other table) and I wish to make a pivot table in Excel out of it. I have been using the Excel COM, so I am hoping that there is a way to do it this way. I have seen code that will put data in a pivot cache via an SQL connection string, but I have yet to find anyway of using a datatable as is.
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Jun 17, 2010
Ok. Next in line for the week....
.Sheets("PivotData").PivotTables(1).AddFields(RowFields:="CauseCode", _
pageFields:="Responsibility")
<error>
[code].....
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Jan 9, 2010
I have a Microsoft Office Pivot Table 11.0 in my form in Ms Visual Basic .NET 2005. I've already succeed displaying the report. But what I want to do is customizing it. I want to be able to change the dimension or the field of the dimension by clicking a checkbox or something like that. How to do that programmatically ?
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Mar 25, 2009
I am creating an app to grab data from excel and preview in datagrid. From the datagrid I want to be able to save to a sql table. I have the excel data in a gridview via a dataset. What I am having trouble with is the sql statement. I know how to insert data, but I can't work out how seperate the data in the dataset to pass it into individual Values of the insert statement. Or should it be done another way? NOTE: I is not essential that the excel data be previewed in the gridview if this would make life easier for me.
Here is my code so far:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
'Grabs data from excel sheet and stores it in datagrid.
Dim ds As New DataSet
Dim da As OleDb.OleDbDataAdapter
Dim con As New OleDb.OleDbConnection
[Code] .....
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Jun 8, 2011
I am developing a roster application (asp.net with VB + sql server) to let user input shift duty record, proposed screen is as follows:
[Code]...
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Mar 19, 2006
I'm on the process of linking my AS2005 cube to VB 2005 using ms pivot table 11.0. However, instead of doing an early binding, I want to code my datasource connection.
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Jun 17, 2010
I have an App written in VB.net that creates an excel workbook.I fill the first sheet (1) with data, now I want to create a pivot table on sheet(2).
Dim Rstr As String = Rx - 1 & "C8"
ObjExcelB.ActiveSheet.PivotTableWizard(Excel.XlPivotTableSourceType.xlDatabase, _
ObjExcelB.Sheets("Data").Range("R1C1", Rstr), _
ObjExcelB.Sheets("PivotData").Range("A1", System.Type.Missing), "PivotTable1")
This throws a COMexception:Exception from HRESULT: 0x800A03EC
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Jan 4, 2011
here i'm trying to show the pivottable but i'm having problems?
Private
Sub Button1_Click(ByVal
sender As System.Object,
ByVal e
[code]....
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Sep 28, 2009
I am tyring to set up a macro to update a pivot table. I have typed the following code into my macro:
[Code]...
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Mar 26, 2010
I am a new user of Visual Studio 2005. I am looking to create a pivot table for data in my excel spreadsheet using Visual (Basic) Studio 2005. I am getting an error in the following two lines of code, which work fine when I use Visual Basic 6.0 but not with Visual basic that comes with VS 2005. Can anyone let me know why the error occurs and what the correction should be?
[Code]...
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Jul 2, 2010
I have a table of data in Excel 2003 of which I have managed to automate through a VB.NET application to create a Pivot Table. (Will be doing hundreds of these and therefore cannot just run a macro each time...will put the code in a for loop for each spreadsheet in a directory) My problem is that I am trying to create a pivot chart based on the pivot table.
Some code below....I need to create a pivot chart based on the pivot table below!
CODE:
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Jun 29, 2011
I'm creating a tool that will query Excel and intialize the default settings for the site's Cad Software.I want 2-20 users to be able to simultaneously query excel. Currently I have the spreadsheet open on one computer and the other test machine gives me this error.
GetOleDbSchema Table Require an open and available connection. The connections state is closed.
I could use some help on the code design. Should I use Datareader instead....Does that have less permissions issues? Or do I need to open up the oledbconnection in a different manner?
Private Const cPageData = "PageData"
Private Const cPrinterData = "PrinterData"
Private Const cSupportData = "SupportData"
Private Const cUserData = "UserData"
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May 2, 2012
Please see bottom edit for where I am currently at I have created a pivot table that works fine when the pivot cache is defined as:
Dim ptCache As Excel.PivotCache = mainHighway.PivotCaches.Add(SourceType:=Excel.XlPivotTableSourceType.xlDatabase, SourceData:=mainHighwayData.Range("a1:v7500"))
My problem is that the number of rows changes from day to day, so I figure out the number of rows in the worksheet and then use that in my pivot cache:
Dim highlRow As Integer
highlRow = mainHighwayData.Cells.SpecialCells(XlCellType.xlCellTypeLastCell).Row
Dim ptCache As Excel.PivotCache =
[code].....
This returns the proper number for the last row, but once again throws the same type mismatch error.
Edit: I found out another bit of information, but I am not sure what to do with it. The pivot table works fine if the values in it are <= 65536, but the second I increase the range to 65537 I get the type mismatch that has been haunting me. This is true for all numbers >= 65537. I know that 65535 or there abouts used to be the last row in excel, but that is no longer the case. Also when I create the pivot table manually in excel I have no trouble and it has all of the data. I am using int or long, so it should not be an overflow or anything. Anyone have any thoughts on why VB.NET will not let me make a pivot table based on data with more than 65537 rows?
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Apr 3, 2010
I am getting error "Exception from HRESULT: 0x800A03EC" near (******). can anyone please help me out. i have seen [URL] this blog also but there are also errors in that. can anyone please provide me the correct code for creating a pivot table. The code is,
Imports Microsoft.Office.Interop.Excel
Imports System.Runtime.InteropServices
Imports System.Data.OleDb
[Code].....
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Apr 3, 2010
I have been receiving the error "Exception from HRESULT: 0x800A03EC" near (***) in the code below,
Code:
Imports Microsoft.Office.Interop.Excel
Imports System.Runtime.InteropServices
[code].....
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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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Sep 19, 2011
I am attempting to write the entire contents of an ADO.NET DataSet to an Excel 2007 spreadsheet and, while having partial success, I am unable to dump the contents of the DataSet into the .xlsx file. "Partial success" meaning that I can generate the spreadsheet(s) ok, but cannot get the DataAdapter.Update to work.
[Code]....
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Apr 8, 2009
I have a DataGridView on a form that is being populated from a SQL table dataset by giving criteria from a previous form. I have 6 columns in the dataset, of which the last column should be combo box column containing items "Done" and "Pending". How do I make this bound column to a combo box column and display the value as well as the alternate item too in the combo box?
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May 5, 2012
I use a dbDataAdapter to populate a DataTable from an unlinked oracle database.I have a dbDataAdapter that I want to insert rows into an SQL Server table using SQLCommandBuilder.I have been trying all day to update the DataTable that references the SQL Server table with the data from the Oracle DataTable so that I can insert the rows.
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Apr 12, 2011
I have written some functions that I have in a module. In one of the functions I would like to update a table that is in a dataset. I would like to do this with this function and not from a form class where the table could be bound. I need to call the function from various places in the application.
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Jun 23, 2012
I'm trying to create a pivot table by opening an Excel file from my drive.But I'm receiving the error saying "Object reference not set to an instance of an object".[code]
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Apr 5, 2012
I have created a macro, attached to a button on my word document, which added a new row to the top of a table and changes the colour of the bottom line of the row to light grey.However there appears to be a problem which I think is a bug in either the language or word itself which meant that he part of my function which colours the bottom of the row only works once!I did create a work around which was to actually call the style function twice (but it had to apply a different colour, even though only one of the colours are actually applied).
Private Sub NewEntry_Click()
'Select first row
ActiveDocument.Tables(1).Rows.First.Range.Select
[code]....
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Nov 13, 2009
I have a project which contains a large number of lookup tables, and I have all of these lookup tables represented in a single typed DataSet, which contains TableAdapters for each lookup. I've designed an editor for these lookup tables, which should allow editing of one of these at a time. My front-end is written in VB and WinForms, the back-end is a SOAP web service; I can successfully pass the changes to the DataSet back to the web service, but can't find a way to use a TableAdapter to update the single table that has been changed.
What I'm trying to do is instantiate the appropriate TableAdapter for the updated DataTable by sending the name of the table back to the web service along with the DataSet, then referring to the TableAdapter with a dynamic name. The normal way to instantiate a TableAdapter is this:
Dim ta As New dsLookupsTableAdapters.tlkpMyTableTableAdapter
What I'd like to do is this, but of course it doesn't work:
strTableName = "tlkpMyTable"
Dim ta As New dsLookupsTableAdapters(strTableName & "TableAdapter")
Is there any way to achieve this, or am I taking the wrong approach altogether? My other alternative is to write separate code for each table, which I'd prefer to avoid!
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