DB/Reporting :: How To Count The Number Of Rows In A Column
Apr 28, 2009I am having trouble Counting the number of rows in a specific column in a datatable.
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DataColumn.Expression Count - Filter On The Day, Count The Rows And Then Populate This Added Column With The Result?
Nov 2, 2010I 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 RepliesCount The Number Of Affected Rows And Display The Number In A Messagebox?
Jan 8, 2012how 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].....
.net - Count Number Of Rows In A Report Using VB?
May 10, 2012I 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
VS 2005 Count Number Of Rows?
Apr 15, 2009i 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 RepliesVS 2008 Count Number Of Rows In MYSQL?
Feb 26, 2011Currently, 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?
Count Number Of Certain Character In A Column?
Jun 21, 2010I'm using vb.net and a DGV to open a access DB. On load im filtering out everything except what was created on the current date. [code]...
View 1 RepliesCount Number Of Checked Checkboxes In A Column?
Mar 28, 2012I'm trying to count the number of checked checkboxes in column 5 of the table. I've tried several approaches, but none have worked so far.This is the code I've written so far. As you can see, I've managed to count the number of rows.
VB
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
dbProvider = "PROVIDER=Microsoft.Jet.OLEDB.4.0;"
dbSource = "Data Source = C:/Databases/database.mdb"
con.ConnectionString = dbProvider & dbSource
[code]....
DB/Reporting :: Sql + And Statement - Selecting Rows On Multiple Column Values
Sep 15, 2010What iam trying to do is selecting rows on multiple column values. But the statement below doesn't preform like i thought it would...
Code:
Select Distinct Variable From TableName Where (ColumnA Like"%AAA%") And (ColumnA Like"%BBB%")
MySQL Count Rows Count Rows And Gain Access To Other Information In A Row Based On Provoided Information
Oct 8, 2009I 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).
Datagrid With One Column And Dynamic Number Of Rows?
Feb 2, 2009I am trying a small application here. It is a windows mobile application. I have to create a form with one drop down and a datagrid.Once a value is selected in the dropdown. The focus goes to the data grid.I know before hand that there is only one column. But I dont know how many rows the user will enter.When the foucs comes to datagrid then one row is created where the use will enter a number. When he hits tab or enter a new row is created and the cursor goes there and the user can enter second number. When he tabs or etnerts a new row is created. This should go on until he presses Save button when all these values will go in the database table.
View 3 RepliesGet Total Number Of Rows And Column From Excel?
May 24, 2012Dim oApp As New Excel.Application
Dim oWBa As Excel.Workbook
oWBa = oApp.Workbooks.Open(excelFile)
[code]....
DB/Reporting :: Get A Count Of The Physical Pages (as Opposed To Logical Page Count) To Use With A Print Dialog
Jul 16, 2010I have some reports that I use with the MS ReportViewer and I need to get a count of the physical pages (as opposed to logical page count) to use with a print dialog. I've implemented a workaround so the ReportViewer control displays the correct number of physical pages, but is there a way to get that value from the ReportViewer control? The only publicly accessible property gives the logical page count.
[Code]...
Count Rows For Particular Columns If No Data Then Ignore And Count
Oct 6, 2010Declare some class level variables that will keep track of the sums for each column. For example:
[Code]....
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?
VS 2008 OleDB - Search My Access Database And Count The Number Of Records In The Column "Type" In Each Group
Feb 13, 2010I want to search my access database and count the number of records in the column "Type" in each group. For example
[Code]....
Allow A User To Enter Some Number (n) And A Choice Of A Count Up Or Count Down For That Many Numbers
Dec 10, 2010designing 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 RepliesEither Count Datasplits Or Count Number Of Times A Character Is Used In A String?
Oct 1, 2011This is what I have, but It doesn't work with strings for some reason (only text files):
[Code]...
VS 2010 : Combine Similar Rows In A Datatable (the Rows Only Differ By One Column)?
May 8, 2012I have three sub tables that I want to process. For each I want to combine the rows, as they are only different by contents in the second column(I want to do the same to the fourth column, later):
'Sub table 1
xx|C201 |02300877 |Samsung |....
xx|C201 |02300877 |Toshiba |....
xx|C213 |02300877 |Samsung
[code]....
p.s. For the fourth column, Manufacturer information , I want to do the same and I'd probably get something like this for the final table:
xx| C201,C213,C606,C619 |02300877 | Samsung
xx| C201,C213,C606,C619 |02300877 | Toshiba
xx| C303, C305,C712 |02301163
xx| C207, C209, C708 |02301165
VS 2008 - Lock Grid Rows To The Number Of Rows In The Data Table?
Jul 27, 2010when 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 RepliesFind The Number Of Expanded / Collapsed Master Rows And Grouped Rows In A DevExpress GridView?
Jan 18, 2012I 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]...
DB/Reporting :: Merge Two Rows Into One Row From Many Rows?
Apr 5, 2012merge two rows in to one row from many rows below is data example:
id Date AccessType Empno CardNo
1 |04-03-2012 07:23:42 AM | Door Access Granted | 150512 | 8543183
2 |04-03-2012 09:37:05 AM | Card Exit Granted | 150512 | 8543183
3 |04-03-2012 11:08:07 AM | Door Access Granted | 150512 | 8543183
4 |04-03-2012 03:20:32 PM | Card Exit Granted | 150512 | 8543183
5 |04-03-2012 07:47:09 AM | Door Access Granted | 150506 | 8234333
6 |04-03-2012 09:37:03 AM | Card Exit Granted | 150506 | 8234333
Datagridview Tab Key - Ignore Column(2) So That The User Only Tabs Through The Rows In Column(1)?
Feb 27, 2009i have a datagridview with three columns. i set the first column to visible=false, so the user can only see two columns.when the user presses the tab key in the first visible column -- column(1), i want to ignore column(2) so that the user only tabs through the rows in column(1)i can't get it to work. it will always tabs through the rows in column(2) even if i use the column name.
[code]...
Asp.net Mvc - Getting A Count Of Rows That Match In Mvc 3 Using EF
Oct 24, 2011I 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]....
Assign Value In Rows Count?
Jan 8, 2010i 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]....
Count Datagridview Rows?
Mar 14, 2012I 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 RepliesCount How Many Rows Include In DGV?
Dec 7, 2011How to count how many rows include in DGV ?
View 3 RepliesCount Rows In A Table?
Aug 9, 2011Here is some code that I used to fill up my DataSet.[code]...
View 9 RepliesSql - Count Rows According To Parameters?
Jan 31, 2012I 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
DB/Reporting :: Getting The Record Count?
Jun 14, 2008I know how to display or manipulate (add,delete,update,search) records using the OleDbDataReader and OleDbCommand class. But I'm clueless in getting the total record on a query.
View 1 RepliesCount Fetched Rows By Sqldatasource?
Nov 7, 2010Protected 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.