Finding A Method Check The Number Of Records In Data Reader?
Jun 22, 2010is there a method check the number of records in data reader? like the count of rows. ?
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Check If Some Value Exists In The Data Reader?
Jun 21, 2010How can i check if some value exists in the data reader
View 7 RepliesCheck The Number Of Records Inserted Into A Particular Table(Users)?
Feb 6, 2012I have a vb application sitting on sql 2005 database i want a scenario where the application can check the number of records inserted into a particular table(Users) , if the number of records inserted into that table after 1wk since the last insert is less than 100 records it should pop up a warning alert with the total number of records
View 3 RepliesFinding The Lowest Number From A Data File?
Jun 13, 2009I am taking a VB2008 class and I have the entire program figured out except for one thing. I've checked our text I've scoured the internet and I've tried tons of things.
What this section of code does is access a data file, calculate the average from it... done.. that works, calculates the highest number in it... done that works... and calculate the lowest number from the file... nope... not working. I've tried tons of things and what i have in there now keeps giving me an output of 0, when it should be a 2.
Private Sub btnCalc_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCalc.Click
'Calculates average, minimum, and maximum temperatures from data file
Dim month As String
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Get The Number Type Data As A Number Type Using The Dataset Readxml Method?
Feb 17, 2010i am getting the xml using readxml method. And then display the data in datagrid. But number type columns comes as string type in the dataset. So when datagrid displays , sortingdatagrid columns is not correct. For example it sorts like this:
Salary
1180
12133
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SQL Reader With Two Tables - Get Records From Table1?
Mar 9, 2011I'm trying to utilize two tables with SQLReader but it's not working as planned.This is a simple explanation:
Table1 has columns c1 and c2, both integer.
Table2 has column data that is string (numeric with hyphen separators).
A typical record has this: : 20123-456-9834-167
The user inputs two integer values in variables uf2 and uf3.I want to get records from table1 that match the criteria:
1. Column c2 equals uf2.
2. A table2 record is found that:
a. has "-" + c1 at the end. (e.g. If c1 value is 167, the record above matches.)
b. has "-" + uf3 elsewhere in the record. (e.g. If uf3 value is 456, the record above matches.)
There is no "relationship" between the two tables.
The pertinent SQL code I have tried is similar to this:
dim strQuery as string = "SELECT c1, c2, data FROM table1, table2 WHERE " & _
"c2 = @f2 AND data LIKE '%-' + c1 AND " & _[code].....
Method For Text Search Use Together With Barcode Reader
Jan 5, 2010I'm beginner in this field and confuse with better method to use for text search. I'm intend to use it for specific length of string. For the text input, I'm using barcode. Also I need to fill a few field(text field) which I want the field automatically jump according to the text input(via the barcode). So, I'm figure 2 method and confused with it(hehe...):
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Finding Name Of Exception Method?
Mar 23, 2010Is it possible to collect name of method, line, file etc in which exception occurred for logging purposes? I have heard its possible using System.Diagnostics.StackTrace but not sure how.
View 3 RepliesProgramically Check If Word And PDF/PDF Reader Is Installed?
Jan 25, 2010How would you programmically check if Microsoft word and at least a pdf reader is installed on a machine?
I need to figure out some way if the machine can read a particular file. If it can read a pdf or word file.
Get Page Number Of A PDF File Opened In Acrobat Reader?
Mar 25, 2009i use a windows application for data entry purpose. Data for the application is got from the PDF file which is viewed using alt+tab and when i move from the pdf file to application i need the page number of the PDF file when it was in last focus to be pasted in a text box in the application automatically.
View 2 RepliesC# - Finding A .NET Math Method That Will Zero A Negative Integer?
Oct 3, 2010Similar in concept to Math.Abs() - I'm looking for a function that when given a positive integer will return the same integer. If given a negative, will return zero.So:
f(3) = 3
f(0) = 0
f(-3) = 0
Yes, this is simple enough to write on my own but I'm wondering if the .NET Math class already has this built in or if the same can be achieved by cleverly chaining a few Math.* calls?
Finding ListView LOAD Method In .net In Winforms?
May 30, 2012what I am trying to do is, when a ListView loads, for the code to check the entry in column one, and then return a message box if the column contains a specific date.
I am using:
SUB I DONT KNOW THE METHOD TO INSERT THIS INTO. I NEED IT CHECKED WHEN THE LISTVIEW CHANGES
If lvuPreviousJobs.SelectedItems(0).SubItems(2).Text = "31/12/9999" Then
{
MsgBox("TEST")
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Finding The Place Value Of A Number?
Sep 20, 2009How would I find the place value of a number?
View 7 RepliesFilter A Dataset Using A Number Different Inputs, Selected By A Number Of Check Boxes?
Mar 3, 2010I am trying to filter a dataset using a number different inputs, selected by a number of check boxes. I have all the text base rowfilters working, but I can not make the date filter work unless I hard code the datetime into the code. The database is MS Access and I am using VB2008 to show the data. I would like to be able to use a DateTimePicker to set the filter date (without the time part) Also I would need to remove the time section of the datEnterDate. I cannot change the structure of the database fields. Also the datEnterDate is MM/dd/yyyy, because I'm in England I would like to use the format of dd/MM/yyyy if possible
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Finding The Small Integer Number
Aug 14, 2009i'm dave mark.. im new to vb 2008.. i just have to have some question.. the problem is i have to input 10 integer number then after inputting the 10 number .. it will compute the sum, average and the smallest.. i have no problem with sum and average but in smallest number only... how to get the smallest number>>?
View 1 RepliesATM System - Check Card Number Matches Up To The Users PIN Number
Mar 13, 2009I am trying to make a basic ATM system, iv got all the interface done and I have made the link to my SQL database etc. the part i'm stuck on is how I can run a check to see if a bank card number matches up to the users PIN number. To simulate the user putting a card into the machine I've used a combo box, and that lists all the cards, that haven't been flagged as confiscated (there's a column in my ATMCards table that I can set to true or false) then after the user has selected a relevant card there's another text box where they can enter in their PIN number.
Now what I want to do is, if they chose the card number 1234567890123456 in the combo box and they enter in the PIN 1234 into the text box, then, after clicking the check PIN Button if the pin is correct they need to be taken to another from where they can check their balance etc., and if its wrong they got three attempts after which point i want to flag that card as confiscated.
VS 2008 Code To Check If Label1 Number Is > Then Label2 Number?
Jul 10, 2009I got 2 LABELS and ONE BUTTON... when i press the button, it fills both labels with a random number from 1 - 6.ild like to do it like this... you press the button then a little prograss bar starts running for 3 or 4 seconds... and THEN after it reached the bars max i want it to show the numbers in the Labels...
the second thing is...i want to make 2 checkboxes next to the labels... if you mark the first checkbox, next to the first label... and the outcome is that the number of the first label is BIGGER then the other one.. you should get some kind of a msgbox.. i know how to make a msg box... but i dont know the code for vb to check if label1 is > or < than label2....
Pull/fetch Data From SQL DB Using Data Reader And Loding To XML File
Sep 9, 2009how to pull/fetch data from SQL DB using Data Reader and loding to XML file.
After that I will have write code to read XML file and download to CSV file and Test files.
VS 2008 : Can Data Reader Be Used As A Data Source For A Grid Control
Mar 21, 2010can data reader be used as a data source for a grid control?
View 5 RepliesFinding The Smallest Number Evenly Divisible By 1-20
May 14, 2009i just started to learn mod and i was having trouble with this. heres my code:
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Check If A Number In A TextBox Is An Even Or Uneven Number?
Mar 24, 2010Is there a way to check if a number in a TextBox is an even or uneven number?
View 8 RepliesDatagridview/Query - Finding Highest Number And Assigning It To A Variable?
Jan 9, 2010I don't know if I worded this properly, but I have a mdb query that I display in a Datagrid on my form. The first column is TransactionNumber, which is the primary key and a running total (ex. RackingTransactionKey=RackingTransactionKey + 1). What I need to do is when the form is opened, find the highest (last) TransactionNumber from the query or Datagrid and assign it to a variable (RackingTransactionKey), so I can can update it (+1), therefore generating a unique number so I can add data to the query.
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Finding The Page Number Of A Matched String In A Word File?
Jun 7, 2011I am not an ardent developer in vb.net programming. But off late I am using vb.net to develop a windows application.
The following is what I am trying to do:
I am reading an excel file and storing the string value present in each cell, and trying to match the string in a word file.
The program works fine except that I am having problems in returning the page numbers of the matched string.
The page number value is always returned as one.
The following is a piece of what I had written:
If FindStringInFile(wordfilename, vValues) Then
currentPageNumber = word.ActiveDocument.ActiveWindow.Selection.Range.Information(Microsoft.Office.Interop.Word.WdInformation.wdActiveEndAdjustedPageNumber)
TextBox3.Text = currentPageNumber
End If
wordfilename is my word file and vValues is my excel string data
VS 2008 - Finding Highest / Smallest Number From List Of Values
May 10, 2011Create a program where the user can find the highest number and the smallest number from a list of values It needs to operate as follows: Enter a value (number) in the TextBox and click on a button [Add to list]. Once this is done, the program analyzes if the number is the highest entered or the smallest. To view which is the smallest and largest, a second button [highest and lowest] will populate fields (texboxes) with highest and lowest numbers. I've attached an image of what the program should look like.
View 4 RepliesCreate A Data Row Using Data Reader Object?
Jun 15, 2009I have a data reader "dr " that returns a row fo data, Assume dr returns values of 6 columns I need to create an instance of DatarRow using "dr", so that later I can create a collection of datarow objects that I will be adding to a table. However, how do I create a DataRow using dr object?
View 1 RepliesCheck For The Duplicate Records?
Jul 5, 2011with vb.net + access 2007 i am having a access database with about 4 lakh + records the table is having a Autonumber field + other fields like crewID, dutyDate,DutyOn,DutyOff,Dutytype,allowanceOftheDay.... etc
i need to check for the duplicate records that is i need to compare each record with remaining 3 lakh change records ( crewID + dutyDate + DutyOn + DutyOff + Dutytype + allowanceOftheDay ) = ( crewID + dutyDate + DutyOn + DutyOff + Dutytype + allowanceOftheDay )& if exists i need to delete the same using Autonumber field the group by class of the query is not working i tried to loop through each record through front end but it is taking more than hours
Check To See If There Are Records When Getting Sum Of Columns?
Dec 31, 2011I am reading sums of columns of various tables I started receiving Specified Cast is not found.t appears to happen when the table has no values; so, I started checking for reader.HasRows When checking for Sum, it
evidently gives rows. How do I avoid the error when there are no records.
cmd = New OleDbCommand("SELECT Sum([#Head]), Sum(BookCost) FROM Deads Where LotNo = '" & LotNo & "' And Location = '" & fParseString(Location) & "'", CompConn)
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Getting A Value With Data Reader
Oct 7, 2011Currently i am using this code
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How To Use Data Reader
Jul 24, 2010How do I really use data reader in vb.net. I'm using odbc to connect mysql and vb.net. Function I declared on a module:
Public Function form2search(ByVal drugname As String) As OdbcDataReader
cmd.CommandText = "SELECT * FROM drug WHERE Drug_name LIKE'%" & drugname & "' "
Return cmd.ExecuteReader
End Function
[Code] .....
I see a result, but it only loads the first item on the database. I've put this code in the text_changed event. What's the proper way of doing this? And what's wrong with the 2nd code, why is it only loading the first data. As you can see the con is the module where I declared the function. Then I created an object of it in the form.
Count The Number Of Records?
Jan 21, 2011I am trying to count the number of records that match Course_ID = 1 in a table.
Here is the expression I am using
=Count(IIF(Fields!Course_ID.Value="1",1,0))
also
=Count(IIF(Fields!Course_ID.Value=1,1,0))
I always get the number of records in the whole table and that is not what I want.