VS 2008 How To Knock Off Fractions Of MB
Apr 7, 2010[code]Where my code tells me the omount of memory how can i knock off the fractions of MB? using As Integer wont compile.
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Handling Fractions - Set Up A Bit Of Code That Would Convert The Fractions To Decimal?
May 31, 2010As a part time CAD drafter I commonly have to do scale conversions from many different scales.I am writing a scale converter that will allow me to enter the source scale (eg. 1/4" = 1'). Then it will provide an area to enter another number, like 3/4", and then produce that number in inches. In the case of 3/4" it would equal 36" or 3 feet. For now it would be fine if only gave me the answer in inches.How would I handle all the necessary fractions? Would I have to set up a bit of code that would convert the fractions to decimal?
View 30 RepliesImproper Fractions To Proper Fractions?
Oct 13, 2009Public Class Form1
Dim intResNum, intResDenom As Integer
Private Sub btnMult_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnMult.Click
[Code].....
DataBinding To Label - Knock Chars Off String
Oct 29, 2009Using VB.NET 2003 Asp.Net 1.1. I'm data binding to a label in a grid and need to knock off the last two chars, not so easy as I thought.
I know this is wrong it just shows how I'm coding:
Code:
<div id=CODE>Private Sub TemplateControl_DataBinding_Label(ByVal sender
As Object, ByVal e
As System.EventArgs)
Dim lc As Label
Dim sColumnName As
String = ""
[Code] .....
One problem is what I want to achieve:
I want to have:
$123.00
$15.00
$1,000.00
$123.50
$45.78
My data comes back with 4 places on the end
123.0000
15.0000
45.7800
35.9000
The $ sign I have in my code does work
so I have"
$123.0000
$15.5000
and so on.
I don't believe there will ever be a point where the last two are anything other than zeros.
Dealing With Fractions In .NET?
Jul 5, 2009I recently found myself in a thread deling with convertions from decimal number to fractions... Being a bit too brusk and dismissing the idea at first.I have now implemented a structure based on code frm Javelia whithc can be seen in this thread.Solitare also proveided code that I eventually understood and was working.[URL]...it a step longer and developed a structure that can also implement calculating with fractions... My first try is also posted in the tread above...
The implimentation is far from perfect, as it does not deal with POW of fractions.. So if anybody has some ideas on hoe to do this with squer root and all pleas let me know and Ill update the code..
[Code]...
What Is The Best Way To Handle Fractions
Jan 19, 2012In an upcoming project I need to keep track of some fractional data values. Due to industry standards around the products which this data describes, it is important to display the fractional value as a fraction and not as a decimal; yet for purposes of sorting and filtering the data values, the decimal value of the fraction should be known.
The obvious solution since the problem describes data is to store the value as both a string-fraction and as a decimal-value. This works fine, but it does leave a disconnect between the two values, when in fact, they represent the same data.Assuming that this project will also include a strongly typed object model, which will likely drive a EF4 Code-First database, I think that the best solution involves creating a custom fraction type which can encapsulate the string and decimal values.
After thinking on the problem and some experimentation, I've come up with the following structure to meet this need, however, I'm not certain that it is the all-around "best" implemenation.Obviously "best" is a subjective term, but in general the type should be well-rounded for as many uses as possible... idealy as generic as the Decimal type it enhances. Can anyone spot any flaws or drawbacks with this implementation? I'm still not sure about the numerator and denominator fields... whether they should be readonly or priviate or what...
Here is the code:
Imports System.Runtime.Serialization
Imports System.Text.RegularExpressions
''' <summary>
[code].....
Include An Enum Of Fractions In An Application?
Mar 13, 2010I wanted to include an Enum of fractions in an application.
Enum fractions
1/8
1/4
3/8
1/2
End Enum
This produces a 'Statement cannot appear within an Enum body" Error.
Is there a way to make this Enum work?
How To Round Off And Display Fractions And Percentages In A Label.Text Field
Nov 21, 2010I get some funny display errors when I attempt to pop a fraction into a text label.[code]Do I get 33.3% here? No, but I get 33.333333333333 - etc - depending on how big my label field is Plus I also get an error message trying to add the % sign at the end.how to round off and display fractions and percentages in a Label.Text field?
View 2 RepliesCombobox - .net Cascading ComboBoxes Connected To DataSet From Access - Changing Units And Decimal To Fractions?
Oct 2, 2011I have a DataSet with a DataTable that has several numeric columns of Data. The numeric data is composed of distances given in U.S. Standard units. I currently have my ComboBoxes set up and working, but I need to expand on what I currently have in two ways.I need to be able to convert the Decimal numbers in my data column being displayed to Fractions, is there a way to do this and maintain databinding? In this case its the Display Member of the data source...I need to be able to display my drop down options in different sets of units... I've written Unit Conversion classes to help take care of this, but I don't know if I can somehow do this as well and maintain databinding? I'd like to convert the units on the display members as well...
Private Sub ComboBox1_SelectedIndexChanged(sender As System.Object, e As System.EventArgs) Handles ComboBox1.SelectionChangeCommitted
Select Case ComboBox1.SelectedItem
[code]....
What is the best approach for using ComboBoxes when dealing with issues such as displaying fractions and units...
"knock Off" Items That Dose Not Include The Text In Either Colum 1 Or Colum 3?
Jun 14, 2009in the keydown event of a textbox (textbox1) as text is typed in i want it to "knock off" items that dose not include the text in either colum 1 or colum 3.How can i do this ?
Private Sub TextBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles richTextBox1.TextChanged
'code goes here
End Sub
Office Automation :: Excel Process Continues Running (.Net Framework 3.5, VS.Net 2008, .Net 2008)
Apr 15, 2011I'm calling the following method from a button click event to export a datatable to excel. After the export is completed, the excel application object is quit, released and assigned to nothing. But in reality it's not getting released and stays active unless the entire application is closed. So every time the button is clicked for export, a new excel application object keeps on running. The problem doesn't occur if two of the lines from the method below are not used. But I can't omit them as they are really needed. Check the * marked lines.
Code:
''' <summary>
''' Exports data from a datatable to excel.
''' </summary>
[code]....
VS 2008 Change Frame Rate In Visual Basic 2008 Media Player?
Feb 26, 2010How to change the frame rate in Visual Basic 2008 Media Player? I have error: System.NullReferenceException was unhandled Message: Object reference not set to an instance of an object. IS there any way to fix this? Here's My Code
[Code]...
VS 2008 VB 2008 Express Edition Softare - Specific Installation Directory For A Program?
Aug 9, 2009Where in Visual Basic 2008 Express Edition Software program do you specify a specific installation directory for a program?
c:Program Filesfinished program
I want to publish my program to try it out on another system and I want to ensure its installed in the directory structure I want.
VS 2008 Visual Studio 2008 Randomly Crashing When Simply WRITING Code?
Oct 25, 2009i'm running Visual Basic 2008 Express Edition (latest service pack ... 9.0.30729.1 SP) on XP Pro SP3 with .Net Framework version 3.5 SP1 I have a rather large project I've imported from Visual Studio 2003 (Standard).The project compiles and runs just fine ... my compiled program itself never crashes.
But while I actually have the code up in the IDE, and simply adding/deleting code the whole IDE will randomly crash (usually without warning) and I loose my changes since last save.If/when I do get some hint of why it crashed, I get a window about illegal whitespace or something.... but that's rare ... usually it just crashes without warning and the whole IDE completely shuts down instantly. just deleting/adding a character is enough to trigger it maybe once every 30 minutes.
This is on a computer that is otherwise very rock solid .... no other program ever crashes, etc.
VS 2008 Access Windows Form Designer Generated Code In 2008?
Jan 20, 2010Is it possible to edit the Windows Form Designer generated code in VS2008?
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Oct 15, 2011My some problem for vs 2008 in mobile applications How to learn mobile device board serial number in vb 2008?
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May 10, 2008this event works ok, but the problem is that I don't know what field was clicked. Should I use objectinfo or something else? VB.net won't recognize for example e.objectinfo.
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Jul 20, 2010How can I display column contents of a MS SQL Database on Text Box using VB 2008
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Nov 27, 2011problem use Visual Studio 2005,2008 with Microsoft SQL Server 2008 R2 , when open vb.net choose : add new data source and choose database and add connection when choose Microsoft SQL Server (SqlClient) show error this version not supported
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Mar 5, 2010What i need to write is i get different signal from PIC16F877A and through serial port, i need to display diffrent text from different signal, Such as: Signal from portB.1 display 1, signal from portb.2 display 2. Between the microcontroller and serial port im using MAX232.
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Mar 12, 2010Using VS2008 as frontend and MS SOL Server2008 as backend... a database is created in MS SQL Server2008(SQLEXPRESS). Now the problem is i am not being able to to load the database created in MS SQL Server2008(SQLEXPRESS) onto VS.Net 2008...
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Sep 21, 2009I use the 'Process' object to run EXE from my application. It works fine when it run on Windows XP and 2003. When it run on Windows server 2008, it hangs up: the process is stayed in background but never returns. It never goes ahead for the next commands. What could be the reason? [Code]
View 6 RepliesVS 2008 Process.waitforexit Is Hang Up When Running On Windows 2008?
Feb 4, 2012I use the 'Process' object to run EXE from my application. It works fine when it run on Windows XP and 2003. When it run on Windows server 2008, it hangs up: the process is stayed in background but never returns. It never goes ahead for the next commands
View 2 RepliesVS 2008 Updating A Record In Database Using VB 2008 + MS Acess 2007?
Apr 27, 2010Having problem in updating an existing record. An error occurs "Data Type Mismatch in Criteria Expression"
Private Sub ToolStripButton1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ToolStripButton1.Click
Dim myBuilder As OleDb.OleDbCommandBuilder = New OleDb.OleDbCommandBuilder(dataAdapter)
[code].....
VS 2008 Validate A Groupbox To Make Sure Radiobutton Is Checked - VB 2008
May 12, 2010Is there a way to validate a groupbox with a couple radiobuttons in it to make sure that one of the radiobuttons is selected?
Heres why I need this. I need a user to be able to select their class rank out by way of radiobuttons in a groupbox. When they click submit, I need to validate that atleast one of the radiobuttons got selected and if not display a messagebox.
I got one reply early of:
If myGroupBox.Controls.OfType(Of RadioButton).Count(Function(rb) rb.Checked) = 0 Then
'There is no RadioButton checked in myGroupBox.
End If
Is there any other ways other then that? Preferrably a more 'dumbed' down way? This is for just an entry level VB class, I would prefer not to use something of that nature if there is another way.
VS 2008 VB 2008 Find Colour Pixel On Specific Coordinates?
Jul 6, 2011I am running a program that is connected through the internet and i gets disconnected at times.wanted to know how this would be to examine a color of a pixel , If the colour turns changes, my mouse will move to reconnect
View 8 RepliesVS 2008 While Windows Configures Microsoft Visual Studio 2008?
Oct 27, 2009I get the message "Please wait while Windows configures Microsoft Visual Studio 2008..." whenever I build the install project for my application. It configures VS for a while, then builds the project. This does not happen when I build the vb.net application itself, only the installation project in the same solution. This occurs on applications using the Leadtools library, but not others.
View 1 RepliesVS 2008 Working In VB 2008 Designer View - Add Another Item In The Menu
Aug 5, 2009I have been working on an app that was basically a vb6 app but had to be changed and I did it all using VB 2008. works well, great. One of the problems that I had was to work on different groupboxes or frames. Since they are layered on top of each other, working on one frame would mess up the others. Eventually it all went okay. but now if i want to add another item in the menu and hence add another groupbox (or frame) in the same app - it would definitely be a nightmare.
[Code]....
COM Object Handling Differences Between 2008 Express And VB 2008?
Jul 15, 2009I recently created a very simple project in VB express 2008 to interface with a COM object from an external vendor. I then downloaded the VS2008 90 day trial and found that the identical code in a VS2008 project results in a COMException error "Object is out of scope". Is anyone aware of any differences in how the two packages handle COM object interfaces as I have run out of ideas. Both projects have identical code and all the references are the same. The CreateObject() method correctly creates the object, but any attempt to access methods inside the COM object result in that error. I can even open the VB 2008 Express project inside VS and it still generates the same error.
Here is the code - the vendor dll in question is from Siebel v8.0.0, you'll notice that I have commented out most of the code that comes after the error. Creating a watch in the debugger on the siebApp variable sees it correctly created as {System.__ComObject}type SiebelHTMLApplication. I first tried this by creating the Property Service for variable siebSvcs, but after I started experiencing the COMExceptions, I reverted to using the most basic method inside the COM object I was creating.
Imports
SIEBELHTMLLib
Public
[code]......
DB/Reporting :: Using Vb Net 2008 With SQL Express 2008 R2 In Windows Forms?
Sep 9, 2010using Vb Net 2008 with SQL Express 2008 R2 in windows forms. that being said, I have a syntax problem in this form, form has 2 texbox an a datagridview and also the 4 components DataSet. BindingSource. TableAdapter, BindingNavigator. When I filter by LastName no problem it work fine (it's a String) but when I try to filter by CustomerID (it's alphanumeric) I get an error "Invalid character" here is part of my code: Private Sub surnameFilterTextBox_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles surnameFilterTextBox.TextChanged
[Code]...