VS 2008 - Displaying / Printing Program Numerical Analysis Results?
Oct 23, 2009
I am writing a VB.NET Windows Application which takes numeric user-input and performs a complicated calculation, yielding many numeric output variables. Previously, I wrote a similar program in VB6, which output the results to a rich text box using fixed-width font in order to organize data in columns and used asterisks to delineate table areas and section borders. I then used the printer object for printing the output. This method was very archaic and difficult to modify when changes were necessary.
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Oct 13, 2010
I am having trouble displaying my results from a temperature conversion program. I am sure it is something simple that I have overlooked. Here is the code.
[Code]...
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Aug 27, 2009
I have a listbox displaying sql results in a loop. Let's say I want to select one of those results and click a delete button. I have the button and box setup displaying the results just fine, I just do not have the functionality. How would I do that?
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Sep 25, 2009
I had done this by using the query builder (in VS Studio) but soon found out thay I gain no points by doing it this way as I am not using any code. I have tried to adapt the code I had to insert data into my database, just changing the SQL sintaxa and some other bits, but it is not working yet. Well, it gives results, but I think it is still geting the results from the query I had built using the query builder. Here is the code I've got so far:
Public Class Form2
Private Sub btn_search_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn_search.Click
Dim str_search As String = txt_search.Text
Dim str_dob As String = txt_dob.Text
[code]....
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Apr 15, 2010
I'm creating a calculator in visual basic 2008, and with this calculator I want to implement a feature that can store numerical values in a variable for instance x. Similar to the feature used in most graphing calculator that have the button showing: "STO->". I was thinking on using the My.Settings. But I'm having trouble on it.
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Oct 4, 2009
I intend to choose developing a Web Content Management System using asp.net with VB.net 2008 but I'm not sure about how long it takes to program such system. Is 4 months enough for developing such system? This 4 months is the duration of this semester and Includes about two months for analysis and design and the rest is left for implementation.
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Jul 22, 2010
I am checking for empty string values, but how do i see for the Quantity text box if the user chose only numerical values after the empty string. For example...
[Code]...
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Jan 30, 2010
My problem consist in show values into a cell of a DGV control, for example:MySQL Table:
ID - Name - Price - Type
1 Mouse Pad 2.85$ - a
2 Keyboard 10.50$ - a
[code].....
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Dec 12, 2009
I'm attempting the following code to calculate how many quarters, dimes, nickels and pennies a user should get as change, and display them in four labels, when buying an item from a machine. The user inserts the amount paid and the cost of the item in two textboxes.My code is as follows:
Code:
Private Sub btnCalc_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCalc.Click
[code].....
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Jul 4, 2010
I an new to VB.Net as well as this forum. I have a problem in working with printing my results from the Data grid view. Actually I am working on my project "Library Management System" and I have to print the results of the DataGridView. Like if I search for an author in the book catalogue, the results are shown in the datagird, I need to print those results to printer. I may be the selected or the whole page. Please help me it's urgent. And please remeber I am new to it, so wud be gr8 if it is given with example and explanation.
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Jun 22, 2009
I can't understand how it happen. But this first code is working but the second code it did not work (but it is 100 % same code I just change it to the table name). I can't display the data result into DATAVIEW in post # 2, in post # 1 work perfect..
The database are:
Local: access 2003
Server: MySQL server
Post # 1 - Working
Private Sub TSRUpload()
If (Me.Ping.Send("PH180", 500).Status) = Net.NetworkInformation.IPStatus.Success Then
Dim ds As DataSet = New DataSet()
Dim tblLocal As New DataTable
Dim tblServer As New DataTable
[Code] .....
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May 13, 2010
I am building an application that will run through various tasks like database backup, zipping some other files and so on.I have the progress bar figured out for each individual task and I have all my tasks working.I am trying to build an interface to display to the user to show them the progress of the entire run.I was thinking like a list box or other object where I could put a green checkbox image or red x image as each tasks runs and is a success or failure.
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Jun 6, 2011
i'm working with a sql (2005) database and using visual studio 2010. I've created a system where one of the forms is a find/search form. A user can enter in for example, a customerID and once they click on "find/search" the customerID will be searched in the database and if found, all relevant information about the customer will be retrieved and displayed in another form (find/search results page). I realise that this can be done using an SQL statement like follows
searchStr = "SELECT * FROM Customer WHERE CustomerID LIKE CIDTextBox.Text%"
What i'm unsure about is how to execute this SQL statement once the "find/search" button has been clicked and how to display the founded results in another form.
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Apr 9, 2012
So I have coded connection to database and query but when I push button nothing happens. So my question is how can I fix that Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[Code]...
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Nov 29, 2010
I have to write a program that allows a user to input DVD info such as DVD Name, Year produced, Running Time, and Rating. The user then clicks a menu item "New" to save that info to a file. Then the next time the user inputs new DVD info it has to append the new data to the same file. (I got this far and everything is working writing and appending data)Next the year has to be able to search by DVD Video name and it has to print the info in the text boxes on the form, if not found then a messagebox should say not found. When I use the sub procedure that I have created to search the record it always comes back as record not found although the record in in the file.
Option Strict On
Imports System.IO
Public Class Form1
'Class level variables
[code]....
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Nov 11, 2011
In my desktop application I am writing output to a rich text file *.rtb and loading it into my rich text box control so the user can see the results of an analysis...This analysis which is saved as *rthas 50-200 pages of textUsing the rich text box control works ok but I would like to have a table of contents with hyperlinks or navigation tree that would allow the user to click on a link and go right to the specific page of output.
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Jul 14, 2009
The assignment called for a VB.Net (not web based) program that would accept user input for the loan amount, interest rate, and term of loan, and display the monthly payment of the loan then list the loan balance and interest paid over the term of the loan. the list will be longer than the screen so use loops to display a partial list, hesitate, and then display more of the list. So, I did exactly that and the program works fine. However, after submitting this program for grading, The instructor for the class tells me, "One thing you should work on is not using a timer to pause.
You should not use a scroll bar either." He says I should work on loading the results into an array or use a loop with a counter that can be used to display a given number of results with a more results button for displaying more (but without a scroll bar?). Like I said, this program works fine and I am not asking anyone for any specific code (some sort of example would be great but not necessary) What I am asking for is an explanation of how I would go about loading results into an array to be used for displaying just partial results at a time in some way other than I used here: [Code]
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Dec 9, 2010
I am currently having a headache on how to solve this problem that i am facing.here is the situation:I have a combobox and a list box on the main form. The combobox will get the data from the ms access database.In the database, i have the details of a person's IC, Name and DOB say for eg on one entry I have D215311523C,SHAWN,13/04/1987
So now, my combobox on form load will show the list of dates in the database to allow the user to search base on the date itself by clicking on the selected date. So when the user clicks on the particular date say 13/04/1987, people in the database whose birthday is 13/04/1987 will be shown on the listbox.Meaning to say if i have 3 entries whose dates are the same 13/04/1987, 3 entries will appear. If there is only two entry, then two results will be shown.
[Code]...
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Mar 12, 2011
I've recently started programming for Visual Basic Express - 2008, and I'm currently trying to make a program which takes a bunch of inputs (Name, Age, x2 score results) and then turns this into an output at the end which varies depending on the score results.
I've stumbled upon a small hinderance, which is that the very final stage which has a Console.Writeline does not appear after testing the program. So, everything else functions fine, but as soon as it gets past the "Console.WriteLine("All pupils have been calculated, the results are...")" command the program closes itself.I'm not looking for much help, just wondering exactly what is causing this to happen. I also realise that my coding is sub-par and is coded in a slightly odd fashion, but I'd rather just get this one to work and use the mistakes from this one to correct my future work.
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Oct 11, 2011
655211, Male, David Graham, 1992, 20, 0411221122I have got the code which displays all the info, however i need to modify it to display only male or females
Dim fileReader As String
fileReader = My.Computer.FileSystem.ReadAllText("C:data.txt")
Label1.Text = (fileReader)
[code].....
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Jan 22, 2011
I have code that will validate whether or not the input is numerical. After that's passed validation, I need to check and see if that value is greater than another.
Here's the code for the numerical validation (it works)
If Decimal.TryParse(EndOdometerTextBox.Text, EndOdometerDecimal) Then
ErrorProvider1.Clear()
Else
ErrorProvider1.SetError(EndOdometerTextBox, _
"Please enter a numeric value.")
EndOdometerTextBox.SelectAll()
e.Cancel = True
Now, I need to verify that the input for this is greater than another decimal (BeginOdometerDecimal). How can I do this? Everything I've tried fails completely (ignored) or messes up the fist validation.
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Jul 22, 2009
How can I make this program not to give me the results for the quit command input of -999 but rather just to quit without the results?
Sub Main()
Dim TempIncelsius As Double
Dim TempInput As Double
Dim Formula As Double
[CODE]...
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Jan 19, 2011
I have a form with some textbox and a numerical keyboard on screen. The following code works well if only it had 1 textbox..
Private Sub botones_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles bt0.Click, bt1.Click, bt2.Click, bt3.Click, bt4.Click, bt5.Click, bt6.Click, bt7.Click, bt8.Click, bt9.Click, btDec.Click
[Code]...
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Nov 30, 2009
I wish to extract numerical data from a text file and plot the data on a graph using the Zengraph classes. Each record has five variables.
I attempted to use the split function but failed to successfully get past one record.
1) How does one create an array or arrays using a text file containing many records, each with five distinct variables?
2) Is it better to create a number of single-dimension arrays or create one multi-dimensional array?
3) Is it easier to somehow convert a text file to an Excel file, with each variable in its own cell and each record on one row?
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Sep 5, 2010
I am trying to make a list, separated by a comma, of entries from a single column in a SQL database. I have been spending the last several days searching for a way to do this, but every thing I found either didn't work, or wasn't exactly what I was looking for.
The query will pull all the email address that are not null. What I need to know is how to take the result of that query and make it look like this:
email0@address.com, email1@address.com, email2@address.com, etc, etc, ...
I feel like I should know this, but for the life of me, I can't remember nor can I find it in any of the textbooks I have.
I am using Visual Basic 2010 and SQL Server 2005. I also have access to Visual Basic 2005 if needed.
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Nov 3, 2009
How Do I Make Button.click Event Perform both the enter and period(del) keys on the numeric keypad? [Code] Case Keys.Enter and Case Keys.Separator do not work. Nor does anything like Keys.OEMPeriod for the period(del) key. I've also tried calling the enter key in a KeyPress event etc. But to no avail. Any ideas? I'm trying to mimic Windows calc.exe for a school project and thought I'd try throwing in a few extras such as numeric keypad functionality.
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Jul 31, 2011
printing from VB in my program. I remember the old days in VB 6.0 using the print cpommand and creating reports from code. Now, everything seems to be Crystal Reports...In my project, we need to print designed labels, tub tags, etc. to a label printer. In our current software, we do this by sending an ASCII String to the label printer that prints the label. Is there a way for me to do this without having to use Crystal Reports? I want the user to just hit a button after choosing the number of labels to print and have it print automatically.
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Feb 7, 2012
I'm currently stuck on trying to fix this printing function on a project i'm working on, i've been trying for quite some time now with no good results. Keep in mind this is an in-house program with non-standard ways of programming, hence I fully expect to not get an answer if it's just too far complicated to understand with a block of code.
[Code]...
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Sep 8, 2011
I have created a program that allows me to print some information onto my screen, but now I would like to print this information to my printer. Is there a procedure or a command to print directly to a printer without having to create a new class?
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Aug 29, 2011
I have a datagridview on a form and a print button below it...i want that when i click the print button the print dialog should appear and the datagrid results should be printed.
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