Catch For A Calculator - Converting Temperature ?
Sep 25, 2009
I have been trying to do a try catch for a calculator I am building. I need to do some error handling. Since the calculator is for converting temperature, the number entered for Fahrenheit can't be below -459.4 as that is absolute zero. However, when trying to make the code to check to see that that value is not below -459.4, it doesn't seem to respond in anyway.
Here is the code I have so far, it includes other errors I am checking for:
CODE:
The code in Red is where I am having problems. I need to know how to get a Try...Catch to work for a less than statement. Please someone help me.
Also another problem I am having is that I need to also check to make sure the textbox_fahrenheittemp is not empty and doing so using Try...Catch. What would be the exception for that?
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Mar 7, 2010
I am trying to a create a program that converts a Fahrenheit temperature to a Celsius temperature and vise versa. My form consists of three command buttons(Compute, clear, quit), two radiobuttons where you choose whether you want the entered temperatures to be converted from fahrenheit to celsius or celsius to fahrenheit, three text boxes(start value, stop value, increment), and a list box that displays the information. My problem is that the program needs to limit the conversions to 20 per computation. The program must verify that the range of values and increment will not generate more than 20 lines before any calculations are performed. I need a way to check whether more than 20 lines will be put into the list box before anything is actually put into the list box.
My current code is below.
CODE:
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May 16, 2009
Description of Program/Events. I would like to come up with a number generator that takes the Total number (for this example I'll say 20), divides it by 2, and does alternating additions so the end result will generate a list like this:
1, 11, 2, 12, 3, 13, 4, 14, 5, 15, 6, 16, 7, 17, 8, 18, 9, 19, 10, 20.
I can understand the arithmetic, just can't work out how to express this in code. The end result would be save in a .Txt file (I have added a SaveFileDialog1 control, but figure I need to get the result before I work on the export).
Dim StartValue As Integer
Dim EndValue As Integer
Dim TotalValue As Integer
' Convert input to numeric variables.
StartValue = Val(StartNumTextBox.Text)
[Code] .....
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Mar 25, 2011
I have a program in VB.Net that receives mails from Outlook, extracts attachments and inserts the attachments into a table through a query. I would like to put the query/queries in a Try/Catch block, but cannot do so as Outlook exceptions cannot be caught, and it gives me an error, and unless I put a very specific exception, I cannot catch it. Is there a workaround?
Edit:
Try
Catch ex As Exception
End Try
Exception is underlined and when I hover on it, it says: "Catch cannot catch type 'Microsoft.Office.Interop.Outlook.Exception' because it is not in 'System.Exception' or a class that inherits from 'System.Exception'". This is affecting all my other code which I'd like to put into a Try/Catch block.
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Jun 19, 2012
The following code causes a "Warning" that Variable is used before value assigned.How do I restructure this Try/catch to eliminate error on the myreader.close command in the Catch part? Code appears to work fine but I dont like Warnings. [code]
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Apr 1, 2011
i have problem when i click a ADD button, there is one null value in the textbox .. so the try catch statemnt is to catch that null value error but after that the catch is success but the button click never stop excute the statemnt till the end of the button event.
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Mar 4, 2009
I have this scenario: in a Sub I have a Try...Catch statement.Within that Try..Catch I call another sub.In that 2nd sub is also a Try...Catch.(see below for example).Now if an exception occurs in the 2nd sub's Try...Catch, which Catch gets excecuted? The 2nd one, the 1st one or both?
Private Sub sub1()
Try
..do stuff[code].....
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Jun 2, 2009
If I throw an exception from within a catch, does the finally (from the catch) still execute? i.e.
Try
..some code with an exception in it...
catch ex as Exception
throw new SpecialException("blah blah" & ex.Message, ex)
[code]....
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Jan 23, 2012
I need to catch log4net exceptions (its own exceptions not app exceptions logged by it). I wish there's a way of doing it this way: [code] I have this code implemented and there's no errors in compilation but i force log4net to have an error (pointing to a non existing database in the config file) and nothing is threw.I've tried the listener aproach: [code] and it's writing the errors to log4net.txt, the forced ones i mean.This last aproach has a couple of drawbacks: it won't append every error to the file, if the error is the same it doesn't write it, i can't get the listener to write every error to that file, only one (I don't know how to fully configure the trace listener, it might be that). Thus it won't append the date and hour to every line wich is a necesity for me. Finally i can't give structure to it (xml). Even if the listener work i need to use the try/catch aproach, since i'm using ExceptionHandling from Enterprise library to log the errors in my app.
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Feb 12, 2010
I am using VB.NET 2005 to create a Windows forms application. I have a procedure named SendMail that creates an instance of Outlook.Application, to send an email from my application. I found the code on this forum, I think.The procedure works fine, but I can't use error handling with it.I call the procedure from a button click event. I put the procedure call in a try/catch block, and the application won't build, with the following error.
Error 68 'Catch' cannot catch type 'Microsoft.Office.Interop.Outlook.Exception' because it is not 'System.Exception' or a class that inherits from 'System.Exception'. C:datadevdmtiQTSQTSv7_1_20100212wQTSQTSReportsCriteria
pt_frmReportViewer.vb 43 21 QTS
Here is the code:
Sub SendMail(ByVal sFile As String)
' Create an Outlook application.
Dim oApp As Outlook._Application
[code]....
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Aug 10, 2010
I'm getting 'Catch' cannot catch type 'Object' because it is not 'System.Exception' or a class that inherits from 'System.Exception'. and 'Expression detected' Code underlined in blue: Catch obj1 As Object When (?)
Private Sub OpenJAMem()
Dim num3 As Integer
Try
[code]....
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Nov 20, 2006
Is there any way to get PC/CPU temperature??
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Dec 16, 2005
i like to get CPU temperature of my own machine and i am developing application for network monitoring. is there any way to get CPU temperature using Visual Basic..
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Apr 16, 2012
I have a project converted from Visual Studio 2005 to Visual Studio 2010. It compiles and runs.
When I prune "unused references's from this project as listed by Visual Studio, the project fails to compile with the subject error message.
In particular one of the "unused refererences" is to "Microsoft.VisualBasic.dll". The IDE does not allow me to add back this particular reference.
What do I need to add back as a referenceto get this items?
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Apr 20, 2010
A few weeks back in reply to a thread, I said then that it's sometimes worse to use a Try/Catch when there's nothing in the Catch!There are exceptions to that I'm sure, but too often the Try/Catch is used with a blank Catch that makes even the developer scratch their heads when the program crashes because they have nothing to go on (by their own doing).DevExpress (and I'm a big fan of their stuff) has a little three minute video that encapsulates that concept well and I thought that you all might enjoy watching it:[URL]
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Jun 15, 2012
Recently ive been experiencing someproblems playing minecraft on my toshiba qosmio x500, because of the high ram and cpu useage, my laptop gets very hot very fast, simply turning off due to overheating after maybe 20 minutes, if i am not rasing it off the desk, in which case, i must be careful as the fans are often blocked by whatever i am leaning the laptop against, otherwise if positioned carefully, i get cpu heat at a constant 90% or so,100% being when the computer overheats and turns off.[code]...
finding out how to get the cpu temperature?
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Sep 30, 2007
I just searched a method to read my CPU Temperature, at first i tried W32_TemperatureProbe, but this didn't work. Now i use: MSAcpi_ThermalZoneTemperatureI found this [Code]
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Aug 29, 2009
read the cpu temperature in a VB application.i tried to get it using WMI but that isn't supported by my computer.i used code i found on this forum and what i get from the WMI code creator.this is the code created with the WMI code creato
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Aug 22, 2011
my goal is to
1.Take an file(exe,dll,etc)
2.Convert it into hex
3.place that hex values in a stack
4.Execute the values inside the stack to its original form(i.e. take the elements out of stack and then convert it to a compile format)
Imports System.IO
Sub Main()
Dim fileName As String = "ABC.exe"
[code]....
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Nov 20, 2009
[code...]
So far, my friend has this, and we're trying to figure out how to get the code to tell convert F to C, and back. All we can use for input is (example:) 10,f and it will change it to 40,C.
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Jan 6, 2011
I'm doing a little app that basically has 2 text boxes. You'll enter Fahrenheit into TextBoxA and Celsius into TextBoxB.As the text changes in TextBoxA I want the equivalent Celsius value to be displayed in TextBoxB and vice versa.Is there a way to do it all in Xaml except for a Convert class that does the maths? So basically I want the TextChanged event of one textBox to pass in it's value into a Converter class that is evaluated and sent to the other TextBox and visa versa.
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Jul 4, 2008
im wish to get the cpu temperature and cpu fan using wmi.. in my bios, i can read my fan speed and cpu temperature.. i tried to use wmi to get the data but it doesnt function..for the wmi, i downloaded the wmi creator from microsoft website.. n it work perfectly to find other information like bios infomtion. however, it is not working with cpu temperature and fan speed..from internet, i found a program called SPEEDFAN and this program can list out all the computer temperature... do anyone know how this program function? i wish to get the information of temperature using vb.net.
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May 24, 2011
I want to know are you have trend view control.Each second I receive temperature value, I want display the temperature curve (trend graphics).
Are there have existing control to use? If not, how can I achieve this.
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May 20, 2009
I need to find the local temperature and load that information on to a windows desktop application, which has to be programmed either using vb or C#,
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Aug 11, 2010
If this is possible i'min need of the code snippet to be able to display the CPU's temperature in a listbox
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Nov 9, 2007
I'm trying to get hard drive temperature data.I can get the temperature via MSStoragedriver_ATAPISmartData.And, I can get all sorts of drive info (model, serial #, etc. via the Win32PhysicalMediaClass.The trouble is trying to link the two together.I get this temperature info, but I don't know which drive it is.The only identifier I can get from MSStoragedriver_ATAPISmartData is InstanceName.That looks like it has the model number embedded in it, but I can't get model number in Win32 my question is how can I get the temperature data and realte it to a specific drive?
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Oct 12, 2010
I am able to get a list of my drives by using
Dim allDrives() As DriveInfo = DriveInfo.GetDrives()
Now I am wanting to get the current temperature of the drive. My total code below, everything is wrote to a ini file for pickup of another program I use on my network.
Dim allDrives() As DriveInfo = DriveInfo.GetDrives()
Dim computerN As String
Dim path As String
computerN = Environment.MachineName 'set computer name
[Code] ......
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Sep 19, 2010
How do i read cpu temperature in windows 7?
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Nov 3, 2007
i'd like to read the cpu temperature in a VB application.i tried to get it using WMI but that isn't supported by my computer.i used code i found on this forum and what i get from the WMI code creator.this is the code created with the WMI code creator.
View 9 Replies
Oct 19, 2011
I'm trying to write a small application that will show the GPU temperature. I'v found the following documentation about the subject: [URL] according to this documentation, I can use the nvcpl.dll file (which is a part of the NVIDIA driver) like this:
[Code]...
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