Filter A Dataset Using A Number Different Inputs, Selected By A Number Of Check Boxes?

Mar 3, 2010

I 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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Nov 10, 2010

I have the following code to insert a record into the database [code]...

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Aug 20, 2009

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Nov 2, 2011

In VB if you prompt the user for a number between 1-20, then a word, how do you get a text box to show the word the same number of time as the number selected using loops?... Ex: please select a number: 4 / select a word: cat....the text box should display :::  catcatcatcat  ........

I am doing this for a class and my brain has locked up. Prob. just over thinking it though. Thanks in advance for any help!

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Mar 13, 2009

I 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.

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VS 2008 Code To Check If Label1 Number Is > Then Label2 Number?

Jul 10, 2009

I 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....

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Apr 18, 2009

I have created a basic query generator which allows a user to select the Select, WHERE and criteria attributes using a number of checkboxes.However i have got stuck. In the results form i have the following code

Private Sub DisplayRecord()
RichTextBox1.Text = ds.Tables("newResults").Rows(intCurrentRecord).Item(0)
RichTextBox2.Text = ds.Tables("newResults").Rows(intCurrentRecord).Item(1)
RichTextBox3.Text = ds.Tables("newResults").Rows(intCurrentRecord).Item(2)


The program keeps on crashing if the user does not select the corresponding amount of display records from above for the amount of attributes they want for the SELECT part of the query in the intreface in form 1.

How would i go about making something where the number of SELECT attributes selected which are listed in a string create the correct number of textbox fields in the results form (form2)

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Mar 24, 2010

Is there a way to check if a number in a TextBox is an even or uneven number?

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Feb 9, 2010

i am working on lab asssignment i need to know what im missing ? i am trying to Write a Visual Basic Console Application which inputs the month number, which i think i have right. also have to output the number of days are in that month which im completely lost is what i have so far:

Module Module1
Sub Main()
Dim month As Double


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Sep 23, 2010

Part of my assignment is to check if input to Group Number and Number of Units are correct input by making error handling exceptions...

I have to check the following:
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b) number of units are NOT numbers
c) number of units is NOT a positive number

So my first question is, am I checking correctly? 2nd question is, How do I make sure my Exceptions will pertain to their correct respective things (a, b, and c.. above)?


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Oct 8, 2008

Is there an easy way to check whether a number is a prime number? I've tried doing this:[code] url...

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Oct 12, 2010

Is there an easy way to check whether a number is a prime number? I've tried doing this:

Public Function IsPrime(ByVal Input As Integer)
Dim NewInput As Integer


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Feb 17, 2010

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Mar 4, 2011

I am doing a bar cash register and I want to use a if statement to see if fosters button and number 1 on the number pad are both pressed then multiply constant by quantity number

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Jun 4, 2011

I was trying to get this work, but couldn't find a way to work this out. I'm new to In a text box, the user enters a number for example a 9 digit number. I want the user enter to enter a 9 digit number that is starting from 8. if the very first number of that set is not starting with 8 then give a error msg to the user to enter a number starting from 8.

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May 10, 2012

how do you filter/search a numeric number from your form feilds in i have filtered a feild with textbox containing names(first name) but this time i would like to search/find what is containing in a numeric textfiled which is phone number textfield.A phone number is numeric and it might contain both characters and numbers. for example, one can write +44 7961400000. In textfield for fname, i have the following:

Me.EmployeesBindingSource.Filter = ("Fname Like'%" & TextBox3.Text & "%'")

how could i do that in phone number textfield.

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Mar 26, 2011

i need some help here, i want a result that shown a total number from student who passed some subjects. Let say there are 8 student who got A in subject chemistry, then the output should display result something like " there are 8 students who got A in chemistry". And also is it possible to combined the result, for example i want the output something like "there are "X" students who got A in chemistry and physics". where "X" is variable (number). it should trigger when winform is loaded. im using bindingsource.filter, but failed. because using bindingsource.filter need the input from user then it produce the output. whereas i want the result shown when the winform is loaded. How can i achieve this.

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Apr 18, 2011

I have a number of images that I want to select a random number of and populate that number of picture boxes either dynamically or that already exist but can't think of the logic that would do it.

I considered dynamically creating them but don't know of a way to name them uniquely. I tried using pcbx& a variable but it didn't like that.  Placing the image inside picture boxes that already exist, I couldn't think of a way to differentiate between them without what seemed excessive repetitive coding.

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Mar 15, 2012

My problem is after I created 5 rows of text boxes, I want to add random numbers to all of the text boxes in one time when I click the button.Here are my coding to create text box dynamically:

Private Sub btnAdd5Row_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnAddFiveRow.Click
For Me.count = count To 5


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Sep 22, 2010

I'm trying to deny more than 1 decimal and 2 numbers after the decimal.What I have so far:

Private Sub grpSales_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles grpSales.KeyPress, txtJan.KeyPress, txtFeb.KeyPress, txtMar.KeyPress, txtApr.KeyPress
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Feb 7, 2011

Ok so what i have is 2 listboxes and which ever item on listbox1 is selected i need the same row number selected on listbox2.

Listbox1 selected item =

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Mar 16, 2010

I have a dataset that is being populated from a text file.

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123,john doe,product2,10.75

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Jun 17, 2011

I'm making my own ID field (highest number + 1) and using it when I insert a row into my tableadapter, and I've tried two ways...

Ordering my dataset by ID descending and picking the first row does nothing for me.

I've tried building a datatable and ordering it descending and choosing the first row. This works great until you get to 10... Then it counts 1, 10, 2, 3, 4...

How can I make a textbox, label, etc be the next ascending number in my column Highest Number + 1?

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Dec 13, 2011

I am trying to use a listbox to hold categories from one table in a database and by clicking on the categories in the listbox it will display data from another table in the database that is linked to those categories. One table has a field called ID and the other has categoryID and categoryID is linked to ID so it displays the numbers from ID.I am using this:

daSamples.SelectCommand.CommandText = "SELECT * FROM tblSamples WHERE tblSamples.categoryid =" & (lstCategory.SelectedIndex + 1)
daSamples.Fill(dsSamples, "tblSamples")

Currently, however with this if you delete a category from the table with ID in it then it changes the values of the selectedindex in the listbox which messes up the data that gets displayed. How can i change this so instead of using the selectedindex from the listbox, it takes the ID from the selectedindex?

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Sep 28, 2010

I used this code to assign the primarykey from my MS Access database to my DataSet in my project:

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Jan 11, 2012

I have a datagridview that is bounded to a dataset and when i select an item to the datagridview to delete, I get the correct item. But when i sorted the datagridview to some field, it return a different item. Here is my code:


Edit: i try this line but it brings up an error.

Dim xID As String = sec_role_module.CurrentRow.Cells("nID").Value.ToString

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Jan 31, 2011

I have set my listview multiSelect = false, view = details , FullRow select = true , HideSelected = False. I have one coulumn which has 10 items . I want to get the selected row index in

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Feb 6, 2010

I have a combo box setup with 4 items, with indexes ranging from 0 to 3.

Later in my code, I need to do a certain event depending on what is selected. To do this I thought about comparing what the index of the selected combo box item is, because integer comparison is faster than strings, right?

how I can grab the index of the selected value?

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Feb 13, 2012

What I want to do here is to increase the number on a label for next combobox item selected


Items Label
Tom 1
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John 4
etc.. etc..
etc.. etc..
etc.. etc..

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Aug 6, 2009

I have a form which contains a large number of textboxes covering numerous panels/tab controls and I would like to have the user only have one text box visible at a given time and when the user clicks on the screen to another label with a corresponding text box I would like that to appear and the other currently open to disappear.  Currently I have the following loop that goes through and changes the visibility of the appropriate controls unless it is the name of the control I am looking for:

'This is used to iterate through all the controls in the form and ensure the visibility of all other controls
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Jan 26, 2011

How to filter inputs from keyboard in all windows applications while our written code is running and lives in notification area

it's like: user opens our application, now when typing in for example MS Word, when he types "s" it is said in our code to filter "s" and change it to "M" so if he press "s" on keyboard, "M" is typed in MS Word document.

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Jun 21, 2010

I'm reading data in from a comma-separated text file and storing the data in an array for later use. Some of the values are to remain as strings, and I need to convert some to integers, for which I was trying to use, for example, integer.parse(ar(0)).

My problem is that the string values are randomly distributed through the text file, so I need to be able to test whether the string can be converted at all before doing the conversion.

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Aug 20, 2010

I have class representing a unit of measure with a Decimal as the numeric. Just to simplify things for this example, let's say I'm representing centimeters. I'd like to implement a ToString() method for this class. The thing is, if the numeric value is a whole number I'd like to just display the decimal as an integer. Otherwise, I'd like to keep it as a decimal. So, for example, 10.5D centimeters would display as "10.5cm", but 7.0D centimeters should display as "7cm". I'd like this to be fast and simple to read. I have a working solution, but it seems like there should be a better way.Here's a contrived example showing my first crack at it:

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Feb 5, 2006

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Jun 4, 2011

im using a datagridview, and it is connected to ms access. every time i have an input same in the column where primary key is I already got an error. can you guys how to show a messagebox if the Customer Contact number is already in use? here is my code.


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Apr 30, 2010

I can't seem to figure out how to make a function that check if x is a multiple of y. For example, 64 is a multiple of 8.Here's what I have, it's simple but I'm stuck:

Function IsMultiple(ByVal Number As Integer, ByVal Multiple As Integer) As Boolean
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End If
End Function

Line2, if the number is a multiple it would return a number without decimal, but I dunno how to check if it is or not.

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May 29, 2008

I have a combobox. The data that it binds to should be:

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Jan 29, 2011

I want to display the index number of the selected record in a listview box as it is clicked by the user. I can do it with multiselect set to false and the following call.

Sub ListView1_SelectedIndexChanged(ByVal
sender As System.Object,
ByVal e
As System.EventArgs)
Handles ListView1.SelectedIndexChanged


This works fine except for one thing! after I click OK to the msgbox prompt, the record highlights normally and I click on the next record, and I get an Argument out of range exception error message, where I expected to just get another message with the next record number.

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Apr 15, 2012

I'm filling a FlowLayoutPanel with an array picturebox that depends of the number of files in a selected folder. The problem is that images appear stretched, and I want to keep the aspect ratio. Resizeimage is the resizing rutine and works fine. The clicked image wil be shown in a picturebox with a new sise (bigger).

Private Sub Button5_Click(sender As System.Object, e As System.EventArgs) Handles Button5.Click


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Sep 21, 2010

I'm developing a policy administration system and I need to generate a unique policy in this formart


Where R is the Region i select from a Combobox, P is the product the client chooses and the auto generated six digit number and HH is the hour when the record was entered in the system. I want the auto generated number to be the ID in my ClientDetails table in my DB.Here is my code of what I have done so far.They want to be able to tell the region and the product by just looking at the policy number.

Private Function PolicyNumber(ByVal intRegion As Int16, ByVal intProductCover As Int16) As String
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