Updating Form Totals On DataGrid Changes
Sep 4, 2011
How do I fire an event when changes are made in a datagrid embedded in my form? My datagrid houses line items for different forms (Sales Orders, Purchases Orders, etc.), and when a value is changed (i.e. quantity or price), I want it to re-calculate the datagrid automatically (extended amount) and also re-calculate totals in the form itself without having to hit the Save Button. Right now I have a sub-routine that fires when the button is chosen, but how do I fire this event automatically on datagrid changes?
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Mar 8, 2011
I am trying to get the totals from a datagrid, the code that I have (does not work) is:
Dim currentRow As DataGridViewRow
Dim Thetotal As Double = 0
For Each currentRow In MyFITNESSSDataGridView.Rows
[Code]....
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Jul 25, 2011
This VB.NET rookie is asking for the support of those with expertise. BACKGROUND: Form1 has a Datagrid, Dataset1 create by drag DB into datagrid. Form2 presents the record selected from the datagrid. Within the LOAD_FORM I search the DB with the Key and place data in Dataset2 (DS created manually)
CHALELNGE Record updated in Form2 is saved in DB fine and when Form2 is closed, record updated does not appear in Form1. I�ve tried the following but no sucess In form1 event Ive got the code to load data into the DS Me.TUSERSTableAdapter.Fill(Me.PTDataSet.TUSERS) FINALLY: What should I do to see the datagrid updated?
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May 1, 2009
I've been working on a class project for quite a while, and I have not been able to figure out this step on my own. What I'm trying to do is connect the totals from three forms to a fourth page where I can then tally to those totals and then add 7% sales tax on the final total on the last page (I don't think I'll have a problem with the final part of add the 7% sales tax, but I'm not completely certain how to go about moving the totals through to that final form. Also, some of my forms use radiobuttons and one uses checkmark controls. I'm going to show some of the code that I have for each page in case this will make a difference. I think I need to do something with a public variable, but I'm not sure how to title that variable, and the public variable should have sub variable sections in each form, or if one specific public variable should be placed at the beginning of each form.I had also considering using a module to connect the totals in the forms together, because someone had suggested this, but I am not familiar at all with this method.
Code form1
Option Explicit On
Option Strict On
Option Infer Off
[code]....
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May 3, 2009
I'm taking my first (and only) beginning programing class for Visual Basics 2008. I'm working on my final project and have hit a snag. A little background info - I have been able to code everything except for two final steps (but they are my most difficult steps), on these final steps I've gotten two suggestions on other sites, one person helped me with the coding which I used for my form1, but it I still have several errors, and another person suggested that I use a module.
Here is the issue. I have totals on three forms that need to pass through to a final form, and once they are on the final form they need to show up in an itemized list and need to then be totaled again. I actually have a total of 5 forms including my first form aptly named form1, which incidentally is where someone told me I should set up my whole 'connecting the totals' form, and I believe the guy was on the right path with helping me but, I'm still obviously pretty lost on this last segment of coding. Since I had little difficulty with the majority of my project, I didn't think this last bit would be so difficult. I'm going to list my coding for each form below. My project is due Tue morning May 5th Eastern Standard Time, just in case someone starts reading this on or after that date. Just in case it helps explain the issue, I will also post my listing of error codes from my VB project, and they all are centered around my form1 (which is the form that I'm trying to set up the transfer through of the form totals). I also see that I can post attachments so in case it will help I'm going to post my project in the attachment too.
Error Codes:
Error1Event 'Load' cannot be found.
Error2Handles clause requires a WithEvents variable defined in the containing type or one of its base types.
[Code].....
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Aug 20, 2011
I'm relatively new to VB programming & My question was, how do you see the control source or rowsource of a text box so that you can make I display data. I have a case where I am trying to display sub-totals from an exce spreadsheet into a text-box on a User-form. And is it possible to make a selection in one listbox and have corresponding selection highlighted in another listbox?
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Mar 6, 2010
i'm working on a project that is reading text from a file and displaying totals on my form.My issue is that everytime i press my btnCalculate Nothing Happens.Here is the File i am reading from which is in my debug folder.
Otto
Rob
B
Otto
[code].....
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Apr 1, 2011
I am creating a POS system, but there are a couple of things that I cannot get my sales form to do. It contains a datagrid view of the table containing columns code, description, Qty, total. After the code has been entered, I want it to load the description automatically. After the Quantity has been entered, I want it to give the total amount for that Item + the total amount for this order.
[Code]...
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Mar 22, 2012
I am a newbee to the programming. So please guide me if i am wrong. up to binding of the datasource my programe working perfect but during save button it gives error.(Value can not be null. Parameter name : daatTable)
[Code]...
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Oct 15, 2011
I'm having a database, using GridView I retrieve the data into my WEB application.Then I set the rows to editable (not sure if it is fully completed) and when I edit some cells I want to update the GridView AND the database behind.When I click on 'edit' then the button is changed to update. I get some unhandled exception. I don't expect anything else since I didn't put any code in the update methods like RowCommand, RowUpdating, RowUpdated, RowDataBound.
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Dec 20, 2010
I have a datagrid that I use to display data from a SQL 2000 table. I am trying to write back any changes the user makes to the datagrid data back to the original table but don't know the proper method to do this.
Here is the code that populates the datagrid:
Dim TheDatabase As System.Data.SqlClient.SqlConnection
Dim ConnectionString As String
Dim cmd3 As New SqlCommand
Dim Adp3 As New SqlDataAdapter
[Code]...
I could use some suggestions on how to code the write back command that will allow the user to change the data in the datagrid and have those changes be written back to my tAdjustment table.
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Aug 17, 2009
I have a form with tabcontrols and datagrids in my accessfile I have 35 tables.I have set the datagrid to edit by enter and I use this code to update the tables:
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May 17, 2012
I am currently stuck on a project where I am populating a datagrid from a series of labels and textboxes. I have that part down. Now for the part where I actually add it do the database, I am having a problem. It is actually adding everything to the database just like I want it but when it finishes adding the data from the datagridview, I am getting an error saying there are no values.
I have included the code I have been working with.
Private Sub btnsubmit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnsubmit.Click
Dim I As Integer
For I = 0 To DataGridView1.Rows.Count - 1
[Code]....
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Jul 17, 2009
I have a working data grid on my form which pulls the courses the logged in user has signed up for from my database.
[Code]...
However, i can't figure out how to do this:When a new course is added to the database, i need the data grid to 'refresh' or 'update', which will mean that the new course will show up in the grid automatically.
Currently, users have to restart the application in order for the new course to appear in the data grid.
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May 6, 2012
I am using a Dim All_PriceLists As System.Collections.ObjectModel.ObservableCollection(Of BSPLib.PriceLists.PriceListPrime) where PriceListPrime implements Inotify for all properties in it.
I bound the All_PriceList to a datagrid as DataGrid1.ItemsSource = All_PriceLists but when I do All_PriceLists=Getall() where Getall reads and gets the data from the DB, the datagrid is not updating.[code
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Oct 1, 2003
I have a datagrid which is getting populated by two tables. I want to know how do i perform an update on these tables once the user tries to save any edited data. I am doing the following which i found in one of the articles online: [Code]
If objDataset.HasChanges()
Then Dim data_adapter As OleDbDataAdapter Dim command_builder As OleDbCommandBuilder fillSql = "Select [Price Info].[Product Quick Find ID] As
[Code].....
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Apr 1, 2011
Not able to update the table in access using the below function
Private Sub btnUpdate_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnUpdate.Click
Dim cn As New OleDbConnection(Con)
Dim objUpdateCommand As New OleDbCommand
Dim objDataAdapter As New OleDbDataAdapter
[code].....
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Nov 15, 2011
Im trying to update a datagrid and a text box value in access database. both shld be saved in the same row simultaneously, unfortunately its not happening. they were gettign saved in a different rows.
conn.Open()
sqlQRY = "Insert Into tblPlot(SurveyNo)"
sqlQRY = sqlQRY & "Values"
[Code].....
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Sep 5, 2011
I have a bound datagridview when a editing a datagridviewtextboxcolumn and the end edit is called I use the tableadaptermanger.updateall(dataset) to update the db. All well and dandy but having a problem with a comboboxcolumn. The db is only updated after I have selected a new value from the comboboxcolumn and click on another cell in the grid. If I dont click on another cell the db is not updated. I have tried this code but no good:
[Code].....
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Apr 28, 2009
I am trying to update a table based on row selected in a grid (C1TrueDBGrid1.Columns(1).Value), but I am getting the following error:
Update unable to find TableMapping['Table'] or Data Table 'Table'
Code:
Dim ConnectionString As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=/DataDirectory/AOPT2002org.mdb;Persist Security Info=True;Jet OLEDB:Database Password=testaopupdate" Dim objConnection As New
[Code]....
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Dec 18, 2010
"I've wrote a code that accesses data from MS SQL server in DATAGRIDVIEW in VB.NET.the problem is whenever i save the changes back to the database, changes are not reflected back
[Code]...
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Mar 4, 2009
i have a datagridview that is pulling information from a access database. The tables being queried is called "History" I can pull data and update data with no problem, however if i edit the date field i get the following error "Syntax error in UPDATE statement" my code is below.pulling from access
[Code]...
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Jan 4, 2011
I have a Master List in the DataGrid that displays all the "Monitors" - think of them as Audits (for context). Basically when a user clicks on a row in the DataGrid the TextBoxes, ComboBoxes, CheckBoxes and DatePickers all show the values and the user can edit them there and that all reflects in the DataGrid just fine.How do i go about using the same TextBoxes, ComboBoxes, CheckBoxes and DatePickers to add a new record?
<Monitor.VB>
Public Class Monitor
Public Property MID As Integer
Public Property FileNumber As String
[code]....
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Sep 27, 2010
None of the Microsoft videos I have watched, or the other posts I have seen, have given me the pieces I need to understand this process. This is the one key piece of understanding that I need to finish about 4 different programs I have started in the last 2 years. All of them key on understanding the following processes:
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Jan 22, 2009
I placed a datagrid in my form which l retrive data from my sql. i am using oledb connection. if i run the form i can retrive the data but i am not getting the data in the grid at first ,there is a "+" sign, i have to clik that then it shows the table name and after clicking the table name i can view the data displays in the grid..
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Aug 24, 2009
I have two forms....Mainform is filled with controls that are databound to a datasource.....then I have a child form that is used to edit data from parent form.......the data that is displayed on the child form uses the Filter() method of the binding source to display data only for the customer selected......
The child form has the standard OK and CANCEL buttons set up as dialog result.......after I edit the content in child form, the changes are displayed on the child form correctly......but when closing the child form and going back to the parent form the changes dont appear there unless I restart the application.....I also tried adding the tableadapter.update/fill method in the 'OK' dialog result event handler and it still doesnt work......
How can I make the changes take effect on the parent form without restarting the application?
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Apr 10, 2012
I have an assignment to create a website that people can use to make dinner reservations. We are using Visual Basic code for the forms. It's supposed to keep running totals of each type of dinner. I'm having trouble getting the running totals to not reset to zero. I have them declared outside of the button click event. Not sure where I went wrong. Here's the code:
Option Strict On
Partial Class _Default
Inherits System.Web.UI.Page
[Code]....
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Nov 29, 2009
I have the program written and it is so close to functioning correctly, but a the end where I am trying to add the totals for the costs.
[Code]...
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May 2, 2011
I have 10 Numericupdown boxes in my Form from numericupdown1 to numericupdown10. I would like to instantly display the total amount of all ten numericupdown in a Textbox (textbox1) on the form. I don't want to have to push a button to get the total value of the numericupdown boxes.
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Apr 12, 2009
I have yet another question. I have set up a series of radioButtons to create a menu of choice for a class project and am trying to set it up so that there would hypothetically be a discount on a purchase of two or more t-shirts, I have the coding set up so that if any one item is checked and the calculate button is clicked, then the dollar value or "total" will show up, however I am not able to set up a total for more that one item, it clears the previous "total" and sets up a new total for the most recent t-shirt value checked.
[Code]...
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