I learned about this query 2 days ago:-
SELECT SUM(DTotal) AS Monthly FROM bdailytotal
but how I'm going to view the total value of the summation? I had been searching for this but most of the answers I get is for PHP. Can someone show me how to assign that total value to a variable in VB.NET?
Or teach me how to assign that total value to another table.
I would like to show a mathematical summation in a rich text box, using the standard mathematical notation that shows a Greek capital sigma, with the starting value of n below the sigma and an infinity sign above it. I have successfully done this using the code below, but I cannot get the infinity sign closer to the sigma. It looks like it is not part of the summation notation.
Does anyone have an idea how I can get the infinity sign lower? When I use a character offset to lower it, it also lowers the lines below it, so that the distance between the infinity sign and the sigma remains unchanged.
[Code]...
I am using visual basic 2008 amd creatomg a datagrodview format like below [code] Now I wnat to get total balance in total column after less discount in percentage with ENTER EVENT proceedure and get the whole total column balance in a textbox i.e Net BalanceTextBox. Please tell me how to calculate discount in percent % and get total in total column and also tell me how to move cursor in next cell instead of bottom row in datagridview.
View 2 RepliesI have 3 columns in a unbound datagridview, "length" "height" and "Total". Total = length x width and the final total in TextBox outside of the Grid. I found question simalar in this forum and tried the code but i am getting errors.The following is the code i am using
Public
Class Form1
Dim UnboundColumn[code]...
I have a program and I get time data from a sqldb and display it in a column in a listbox. What are the proper steps for adding the time as I iterate through the data in the column? I figure I will need to do some conversions on the time to be able to add it and display it as a total.
View 9 Replieshow I would go about getting the item count for a column in my mssql db.
View 3 RepliesI have a sql SELECT statement in vb.net. I have this line of code to calculate a specific percentage of the Net Total:ROUND(Invoices.NetT*'" + txtOnGoing.Text + "'/100,2) As Commission 'txtOnGoing is a text box which pre populates a certain number e.g '10'... this means 10% of the NetT column..The above code works fine, now I want to add the "Commission" Column and display the Total in a text box. Does anyone know how to do this? I know I can use the SUM operator but because the Commission column isnt a column that actually exists in the table I dont know how I could do this.
View 3 RepliesI have a bound datagridview in my code. I want to create a column to the right of each row that displays the sum of the values in the row.I've searched the net dilligently and have found nothing! Summarizing the columns is there, but not a row.
Oct Nov Dec Total
100 100 100 300
150 150 100 400
Etc....
I have a datagridview on a form and what I need to do is loop through the dgv and get a total of how many X's are in each individual column and then display the total in a Label. Here is the form and some information. I know how to get the sum of numbers in a column but not how to do this.
There are 28 columns Column Names are Day1, Day2, Day3 etc (so I know to use a for loop but can't figure it out) The total needs to go in the label at the bottom of each column,again they are Label28, Label29, Label30 right on up to Label56. I will continue working on it
I'm having some trouble firstly trying to calculate the total of a column in the database connected to my vb.net project. Then I want to divide that total by the number of items in a listbox. This is my code so far:
Private Sub btnavresult_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnavresult.Click
Dim sqlx As OleDbCommand = New OleDbCommand
[Code]......
I get an error saying "No value given for one or more required parameters." when I try to run my program on this line "Dim rdr As OleDbDataReader = sqlx.ExecuteReader()"
i have a problem about adding up the sum of table in my listview, [code]after i input a value in the textbox1 it will give me the total amount in the listview items. the problem is i cannot sum up the table amount which i will be needing to proceed to another transactions.
View 1 RepliesI want to get the total (column) amount using Listview w/o database VB.NET
lstitems
Item Name | Unit Price | Quantity | Amount
---------------------------------------------
Sample1 | 100.00 | 1 | 100.00
Sample2 | 100.00 | 1 | 200.00
Sample3 | 100.00 | 1 | 200.00
Label or Textbox ----> Total 500.00
I have put datagridview on form. I have add one column and 7 rows. Beginning four row contain value "PASS" respectively and last three rows contain value "Fail" respectively. I have to count total fail values in a column in CellEndEdit Event.
View 2 RepliesProtected Sub invokePagination(ByVal table As DataTable)
'CallPagination() As PagingControlDTO
If table.Rows.Count > 0 Then
Me.DataGridPaging1.Visible = True
[code].....
The code which is underlined is to be replaced.Instead of this I want to use column name to get the total count , since it contain the total count.Column Name is "TOTALROWCOUNT"
Dim oApp As New Excel.Application
Dim oWBa As Excel.Workbook
oWBa = oApp.Workbooks.Open(excelFile)
[code]....
I have a datagrid adding items for selling. The total for each row is calculated on the price, qty and discount. This goes into rowTotal column. Below the grid, there are 2 textboxes, one for txtBoxVAT and txtBoxSumTotal. Now I want to add the column 'rowTotal' into txtBoxSumTotal. How to achieve this.kesk
View 2 RepliesI am trying to update my table reservation I am just trying to update only on column which is total amount but it is not updating.
Here is my code.
Dim a As Integer
a = MessageBox.Show("Are you sure you want to exit????", "ALI ENTERPRISES", MessageBoxButtons.YesNo, MessageBoxIcon.Information)
If a = vbYes Then
Me.Close()
[Code] .....
I don't know if this is the best way to do it or not but here goes.I have an access database and a datagridview and they link via a SELECT statement at runtime.I want to total one column named LNLMTS and display the result.I am looking at using SELECT Sum LNLMTS FROM tblProduction WHERE SO=@so AND DATE=@date
View 8 RepliesHow can I count Total of column from datagridview and show results in textbox Using VB 2005!
View 1 RepliesHow do I code the total cost to give me a pound sign with the total cost at the moment when the total comes up for an example it gives me 3.6 when I need it to show £3.60 here is the code I have so far. [code]
View 2 RepliesI was wondering the best method or code to Sum\total a bunch of cell values of an unbound column in a datagrid to a textbox string. this request is 100% genuine...im not some student trying to get you guys to finish my project, this is purely for educational and personal information for myself. im new to vb.net.
View 2 RepliesI have a set of objects that I'm returning via a Linq to SQL query. I'd like to modify the query so that I return a set of objects that are combined only when one of the fields match. The relevant columns of my Products DB table are CategoryID and Quantity. I'd like to combine the fields so that if the CategoryID is identical, the Quantity fields are summed up. However, I don't just want the sum - I need an object that has all the common fields (assume all other fields are identical for the query) so it appears as only one object of type Product. Is this possible? (I'm using VB.net - but open to solutions that include database views, partial classes, etc)
View 1 RepliesSo i run a loop that is an iteration for array variables. for i = 1 to 1000summation = summation + array(i)next iyet for every iteration, array(i) contains a different set elements, and I need to know the sum of these elements for every iteration step.For some reason VB saves the values from previous iteration(s) and adds them to the new.The question is: how do I sum a new set of array elements for every iteration without using the older values.? Can I: dim array(number of elements as a function of something) ?
View 3 Repliesassign a Paste Link to a Cell for summation?
View 3 RepliesHow do you average certain records and then do the summation in a single or separate SQL statements? For example, you want to average learner marks below 50 and the sum all marks for every learner in the table. If this needs two separate statements please help me with the averaging statement.
View 2 RepliesSo I have a text box in a form. The test box needs to take the value entered and insert it into a column within a row in MySQL. I know it's connecting to the MySQL online, I have a message box telling me so upon a successful connection. I'm just having problems adding the value. Here's my code: Public Class frmOptions Dim ServerString As String = "server=db4free.net; Port =3306; user id=dailylogmain; password=XXXXXXX; database=dailylogmain;" Dim SQLConnection As MySqlConnection = New MySqlConnection
Private Sub frmOptions_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code]...
If sqlquery = "Select admin FROM userlist = True" Then
Form2.Show()
Else
Form1.Show()
End If
My login script works its checking if admin from userlist = true is what i can't seem to get working.
I have a working login script. It connects to my database but i need to have it search the column status to see if the user loging in is either admin user or mod. and so far i can't get anything to work.Here is my code i have for it checking the column
Code:If sqlquery = "Select * FROM userlist WHERE status = 'admin'" Then Form2.Show() Else Form1.Show() End If
[code]....
I have just learned MySQL in VB.NET, but I am having a complication..When I grab a SELECT Query, I want to get - lets say the 'username' column in each row it receives. How would I do that?
MySQL.CommandText = "SELECT * FROM online"
MySQL.ExecuteNonQuery()
Label1.Text = 'usernamehere'
myCommand.CommandText = "SELECT 'USED' FROM `KEYS` WHERE `KEYS`.`KEY` = '" + TextBox1.Text + "'"
Dim myReader As MySqlDataReader
myReader = myCommand.ExecuteReader
While (myReader.Read())
MessageBox.Show(myReader.GetString(0))
End While
The returning string is "USED". But that is wrong: it should be returning integer 0 instead. Why is that? I changed the MessageBox line to MessageBox.Show(myReader.GetInt16(0)) but now it sends me an error telling me that the input string is not in the right format..