Currently, my program code is:
Imports System
Imports System.Data.SqlClient
Imports MySql.Data
Imports MySql.Data.MySqlClient
Public Class Form1
[Code]...
How do I get it where when I click button2, it will count the number of rows in the mysql table and then display it in a messagebox or label1.text?
I have a fair bit of experience with VB.NET and C# (In this case I chose VB.NET, blame my laziness), but I do most of my professional work using PHP. I have no experience what so ever in using any database with VB.NET let alone MySQL.Just FYI, at the moment I am only trying to Query the database to gather the information required to activate. The Activation wizard and algorithm building (which is finished anyway), and everything else will come soon. I chose the MySQL database because I have experience with it, and it seems the best option for remote usage.The whole idea already works in PHP, I'm just have major issues moving it accross into VB.NET (Using the MySQL Connector.NET);I understand the basics, and all I need to know how to do is Count Rows and gain access to the other information in a row based on provoided information (in PHP, through mysql_ result)
So, here goes nothing, this is the Query code I am using in PHP to complete the job I want to do in VB.NET. [code] As you can see, I basically need to get the PHP code into VB.NET to fit into the 'btnQueryDB.Click' Command in VB.NET. By Equivalent, the Product ID in VB.NET will come from 'txtPID' and similar, Serial Number will come from txtSNUM. Once counted to be 1, the Activation Code and Status will be fed into 2 other text boxes in the form. (acCode, and acStatus).
how do i count the number of rows that are affected when I updated a table, and display the number of affected rows in a message box ??
here is my code for updating the table ...
For Each row As DataGridViewRow In DataGridView1.Rows
req = row.Cells(Column1.Name).Value
If row.Cells("Column1").Value = True Then
[Code].....
I have a VB report which contains a list of locations. I have this list separated into areas and I need to count the total number of rows per area section. I have a groupHeader which contains my area field, then in the group I list the corresponding entries for that area. Then in the groupFooter I would like to give the total number of entries in the group. How can I do this? I have two fields in my groupFooter
groupCount
groupTotalAmount
i have a table name employee_log...and one of the column name is enroll_no...i just want to count the number of rows of that table ....and display that result ie integer value in textbox..... i used count function but i dun the syntax...
View 2 RepliesI am having trouble Counting the number of rows in a specific column in a datatable.
View 2 Replieswhen populating a data grid i keep getting a redundant row in the bottom. is there a way to lock grid rows to the number of rows in the data table?
View 1 RepliesI am looking for a fast way to count the rows in order to make a unique primary key to save in the database.I used to count the rows but it needed an sqladapter, a data set and then an integer to count but is there any short way to just count the number of records what are in my SQLcommand.[code]
View 10 RepliesI have added a column to a Datatable called CallsPerDay which is there to tell me how many telephone calls have been made on a particular day or days.Is there a datacolumn.expression which will allow me to Filter on the day, count the rows and then populate this added column with the result.
View 1 RepliesHow can I keep a label on my form with the current count of the selected rows. My DGV has a checkbox (unbound) and 3 other columns. When the user clicks on the row I want the checkbox to either be checked or unchecked depending on its status and update a label the is below the DGV to show how many rows are checked. DGV is FullRowSelect.
View 2 RepliesDeclare some class level variables that will keep track of the sums for each column. For example:
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During the RowDataBound event, retrieve the data from each column and add it to the appropriate sum. I'm not sure if you are developing an ASP.NET application or a Win-forms desktop application so I cannot help you any further at this point. What have you tried so far to solve the problem?
I have been searching the forums but have not found anything like what I am wanting to do.Anyways what would be the easiest way to count the number of key strokes? Then when X amount of strokes have been reached, display a message?
View 9 Repliesdesigning a Windows based computer program that will allow a user to enter some number (n) and a choice of a count up or count down for that many numbers. So for example, the user enters 5 as their number and selects the count down option, the message box displayed would contain the message: "Here are your numbers: 5,4,3,2,1,0"
View 14 RepliesThis is what I have, but It doesn't work with strings for some reason (only text files):
[Code]...
I amusing VB.net to count the number of HPageBreaks in an Excel worksheet...here is the code I'm currently using:[code]Sometimes it returns the proper count...but most of the time it returns "0" and I have no clue as to why.
View 1 Repliesis there anyway i could count the number of say Black pixels in my picturebox say i have a picture in it that has 1 black pxiel i would like to to but that to a string so i could put it in a textbox or a msgbox like this
so in RGB black would be 0-0-0 but how would i have it scan the pixtuebox and count how many pixels show up with the rgb color 0-0-0
It's exactly as the topic says. I have a text file with an unknown amount of words, typed out like this:tastymuffinsaredeliciousWhat I need is a counter that will tell me how many words there are, and in this case (besides a tasty muffin), there are 4 words. Is there a simple way to do this?
View 3 RepliesI'm helping the IT department at my school do an audit of all our printers (there are hundreds). They are all networked, so I wrote a vb.net program that sends PJL (printer job language) commands over port 9100 to all the printers to retrieve the page count. @PJL INFO PAGECOUNT actually gets the page count for all the printers, but for color printers we also need to know the color / mono page counts (number of color pages printed, number of black and white pages printed).... the number being returned by the PAGECOUNT command right now seems to be the total pagecount on color printers, so if I can find a command that will give me either the mono or color page count, I'll have the other number. I also need the serial number of every machine (the spreadsheet I'm working off of is unreliable). @PJL INQUIRE SERIALNUMBER actually returns the serial number for about half of the HP printers, and some random non-HP ones, but I can't figure out a way to get the serial number for the other 50%. I sent emails to some of the people who wrote the articles about PJL I was following, and they advised I try using printer spooler functions (from my brief google search it would appear these are windows API's that facilitate communication with a printer).
Does anyone have any experience with working with the Printer Spooler functions or know a PJL command I might have overlooked that will help me get any of the info I'm looking for?here is my program right now. Ignore GetSerialNumber2 and GetSerialNumber3... they don't work (well actually GetSerialNumber2 works on 5 printers... but yea). GetSerialNumber() is the one that gets the serial number successfully for about half of the printers. (edit: I took out those functions in the version I posted, along with some other stuff that wasn't needed for this, to fit the post size limit)
I am currently using DevExpress 10.2 within Visual Studio 2010. In a previous question I was trying to print the current user view of a DevExpress GridControl with the user's choice of expanded or collapsed master rows and/or group sections. I was told this was not possible at this time. I have now decided to use the following code:
[Code]...
I have a mvc 3 app that uses EF. In one function I need to get a count of rows that match a statement. I thought I could just do it like this:
Dim _ClassCount As Integer = _CurrRegistrants.Where(Function(c) c.tues_class = _CurrCourse.course_ref).Count
But that stays at 0 even when there are 40 records that match the criteria.. I think I have the right idea I just need to change the syntax a little..
Dim _CurrRegistrants As List(Of reg_classes) = db.reg_classes.ToList
For Each Course In _courses.Where(Function(a) a.course_day = "Tuesday")
Dim _CurrCourse As cours = Course
[Code]....
i want to change iC to make iC.Value but how?
For iC As Integer = 0 To DataGridView1.Columns.Count - 1
For iR As Integer = 0 To DataGridView1.Rows.Count - 1
If DataGridView1.Columns(iC).Name = "mode" Then
[Code]....
I have hide some data in datagridview. When i write datagridview1.rowcount-1, it will count all data no matter is visible or invisible. But i only want to count data that display in datagridview. How to do??
View 3 RepliesHow to count how many rows include in DGV ?
View 3 RepliesHere is some code that I used to fill up my DataSet.[code]...
View 9 RepliesI need to count how many instances or rows there are which have a specific value in one of the columns.
For Example:
the column "Ready" is a YES/NO column in Access.
If 5 rows have that set as YES and 7 have it as NO
how do i count how many have yes's and how many have no's
This is mainly for the purposes of statistics
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As EventArgs) Handles Button1.Click[code]...
it checks the username and password in the database and redirecrs to respective page on the basis of rows returned. i'm having problem in finding a right function in the sqldatareader namespace so that it counts the number of rows affected.
I have a Windows form that has a datagridview on it. I populate it with records from a database. I have a checkbox on each row. Then I have a textbox on the form outside of the datagridview. Each time a checkbox is checked I want to count it and show it in the text box. Each time a checkbox is unchecked I want it to subtract the count.
View 2 RepliesI want a macro to sort from A2 to xlLastCell on a sheet where the user will paste-in same-column but different-length data each month.I've just spend over 2 hours searching and found some neat code [and used some of what I found] but still have this question:How to replace E6191 with E(TotRows) in the below code? [code]
View 1 RepliesI use: Dot Net 2003-Window Application
In my form there is a Data Grid. When the datagrid is populated, I like to display the total number of records in the grid and sum of a particular column of the grid. Is there any method to be invoked?
I want to search my access database and count the number of records in the column "Type" in each group. For example
[Code]....