Cannot Measure String Correctly
Jun 30, 2009I don't know how many different ways I have tried to do this, it never spaces the strings right.[code]...
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VS 2008 Measure The Height Of A String With A FIXED Max Width
Aug 26, 2009just say I have a string as follows:
This is a long long lojngoi sudofi usdfh ksjdhfjk sdhfgkj shgh sdfhg sdfg sdfgdsfg ... I want to specify a maximum width (eg 180) for my string and get the height returned... the picture below explains in more detail:
.net - What To Do When Dll Return A String Not Correctly Terminated
Mar 10, 2009I have an third part dll that have a function that returns a string.When I call the function I got for example "123456" back. At least it seams like that, but when i do mystring.length it does not return any length. If I set the text property of a label it shows "123456".
When I have the string I got from the dll I send it to a webservice function:
rem call dll and get string
dim mystring as string=mydll.getstring()
rem Send it to the webservice
webservice.SaveString(mystring)
The webservice crashes with an webexeption ("protocoll error") when I send in the string I got from the dll. If I instead send it like this:
rem call dll and get string
dim mystring as string=mydll.getstring()
rem Send it to the webservice
dim FixedString as string = mid(mystring,1,6)
webservice.SaveString(mystring)
Then it works and everything is fine. That leads me to think that the string I got from the DLL is in someway not terminated correct.And I dont know how to fix it from vb.net (I cant change the DLL)and I dont know in beforehand how long the string will be.The dll does only work on site when specific hardware is connected so I can't sit at the office trying to fix this in dev-environment. So I would like to have some possibly solutions to this before I go to the customer again.
Edit 1:I tried to just do a loop that looped from 1 to 100 (because I dont know the real length) and tried to copy all characters that <>"" to a new variable but it didnt work. I didnt try other variants because the day was over and I had to leave the customer site.
Edit 2:The DLL Im talking to is made in VB6. That DLL is talking to other DLLs that is made in C++ (I think).
My program < - > vb6-DLL <-> c++-DLL <-> hardware
Cannot Parse String To Double Correctly
May 2, 2011I cannot parse "6.56" to double (6.56). All the methods parse it to 656 insted of 6.56[code]...
View 4 RepliesCorrectly Converting String To Date
Dec 14, 2011I have been unable to correctly convert a string to date. The string is read from a text file and placed into a string, below is a snippet of how the text file is read until the date is field is read:
Dim varOrderNo As String
Dim varDate As String
Static Dim currentrow(20) As String
[Code] .....
I have then tried loads of different ways to convert it to a Date so when I then write it to a SQL Database it enters as a date. The string read from the text file is in the format of 13122011. If I don't try to change it to a Date before writing to SQL it doesn't recognise it as a date and sets the field to 01/01/1900. I have tried and searched loads online and everything i try should work but doesn't.
Dim varDateConvert As Date
varDateConvert = CDate(varDate)
varDateConvert = Convert.ToDateTime(varDate)
varDateConvert = DateTime.Parse(varDate)
All of the above cause my program to drop out / crash at the point of the converting.
I have also tried to format the string to insert the '/' before converting:
txtDate.Text = varDate.Substring(0, 2) & "/" & varDate.Substring(2, 2) & "/" & varDate.Substring(4, 4)
varDateConvert = DateTime.Parse(txtDate.Text, Globalization.CultureInfo.CreateSpecificCulture("en-GB"))
The result for the above is:
From File: 13122011
Substring: 13/12/2011
Convert: 12/13/2011 - Crashes here
[2008] Unable To Split The String Correctly?
Feb 17, 2009I have a string s
dim s as string="";" ; Form1.vb ; Form1 "
I want to split it and get
";"
Form1.vb
Form1
But if I use
Split(s,";")
I will get the wrong result because of the first string has a comma.
Measure A Path's Length?
Dec 2, 2009I have some problems that about GraphicsPath:
How to measure a path's length?
How to insert a point along the path without changing its pattern?
and how to get a nearest point along the path with a given point?
or
get a on-path-point with a given percentage of the length of the path,
e.g.: 3/4 of Path(new point(){(0,0),(2,4)}) = (1.5,3)
(like Adobe Flash, the object can follow a path to move.)
I have tried to measure length with Graphicspath.flatten, but it takes time and not accurate enough. Is there a formula to do that?
Measure TCP Connection Speed?
Apr 14, 2011I have a TCP connection set up and I know how much data is coming in etc. I was wondering if there was a direct way to measure the current bit rate or a best practice to measure it accurately, say over a couple of seconds?
View 2 RepliesMeasure Voltage And Current?
Apr 13, 2012get sample code by using NI-6009 to measure voltage(Vrms) and Curent (Irms) . Before this i'm trying to make code with using example in National Instrument VB2010.But i still can't display the right values of voltage(Vrms) and Current (Irms) from waveform that I used.The data comes from data acquisition grid in source array i used to plot sinus waveform.But the problem is I don't know how to measure voltage(Vrms) and Curent (Irms) from that waveform. I am also don't know how to start programming between NI-6009 DAQ Card and Visual Basic 2010 Express.
View 1 RepliesHow To Measure Time Spans Accurately
Aug 9, 2011I have a VB.NET application that executes a test when the user clicks a "Start" button. The application communicates back and forth with a USB device and eventually stops when the USB device sends back a specific trigger, or if the user chooses to cancel the test. I would like to measure the time elapsed during each test and display it to the screen.The program is significantly complex and I have several timers that control sampling rate, the frequency of the output, the frequency of signals in a calibration method, etc.I tried two approaches so far, both of which led to invalid time measurements. I say they're invalid because I used several stopwatches I know to be accurate in addition to the system clock (the clock with a second hand that pops up when you double click the time in the bottom right hand corner of Windows XP) to measure the actual time of each test. Consistently, my program will indicate more time has passed than actually has.I tried simply dividing the number of samples I took by the the sampling frequency. I got back a time that was about 1.33 times greater than the actual time. This ratio would change with different frequencies, and even with the same frequency from day to day.
I tried using the DateTimePicker in my main form to measure the time passage. At the start of the test I'd record the start time, startTime = DateAndTimePicker1.value, at the end of the test I'd record the end time, endTime = DateAndTimePicker1.value, and then I'd set the text of a label equal to their difference, TestDurationLabel.text = (endTime - startTime).ToString. I initialized startTime and endTime as Dates. I get back a time that is about 1.2 times greater than the actual time.
IDE :: Measure Webbrowser Component Inactivity?
Sep 7, 2009As I've noted in another thread I'm trying to put together a secured kiosk app for access to our college library catalogue.I've managed to do most of the stuff with little fuss but, given that I'm not much of a programmer, I'm having a bit of trouble with certain features I'd like to incorporate.One of them is that I'd like the webbrowser control to return to the components designated homepage after 5 minutes of inactivity.
View 2 RepliesMeasure Download/Upload Speed?
Sep 26, 2009Well an alternative way is by just showing the connection speed which is:
Dim AllNetConn() As NetworkInterface = NetworkInterface.GetAllNetworkInterfaces
Dim IntConnSpeed As Integer = AllNetConn(0).Speed / 1024
Dim StrConnSpeed As String = IntConnSpeed & " Kbps"
[Code]....
But i need something more specific like the download/upload speed.. I know that i could make my program download a file with the size of 100kb and measure how much time it took to download but i dont know how to measure the time...
Measure Wifi Signal Strength?
Jan 18, 2009I was wondering if there is an available script or code in VB that could measure the signal strength of routers. I need an actual number in decibels.
View 4 RepliesVS 2008 Measure Mic Sound Input?
Aug 5, 2009I am wondering if anyone can point me in the right direction.
I would like to add mic input into my application.
I am thinking of having text boxes in a vertical row. When the user speaks into the microphone the text boxes will be filled according sound level.
I could find anything that does this using the .Net framework.
Get Related Measure Groups Given A Dimension In Program?
Mar 30, 2012I'm using VB.NET to connect to and parse data from an Analysis Services database.
The problem I'm having is while trying to find all Measure Groups that are related to a given Dimension. I've been digging through the API and it doesn't seem that Dimensions have any information on Measure Groups at all, but Measure Groups can contain Dimensions.
This makes it easy if I want to get a list of related Dimensions given a Measure Group(measureGroup.Dimensions), but what I'm looking for is the opposite.
The only thing I can think of is to loop through all the Measure Groups within the Cube and check if it contains a reference to the Dimension in question[code]...
Measure Distance Using Serial Port (sensor)?
Mar 21, 2010measure distance using serial port (sensor)?
View 1 RepliesMeasure The Width Of The Drawn Text In Pixel?
Nov 2, 2009I am writing some text in a control using Graphics.DrawString I need to measure the width of the drawn text in pixel.
I tried to mesure it using:
Graphics.MesureString
TextRenderer.MesureText
GetTextExtentPoint32A (API)
All these method of mesuring the string returns different values for the width, and they are all the wrong value They all mesure the narrow caracteres as "i" as being narrower then they realy are and the wide caractere as "W" as wider than they realy are What would the proper way to draw and/or mesure a string to get the right position on the screen where the text ends
Application That Measure Response And Loading Time Of Webpage
Sep 6, 2009I like to make an console application to measure the time it takes to fully load a web page, what's the best approach to do that? The purpose of this small app is to monitor some pages in a website, in a predetermined interval, in order to be able to know beforehand if something is going wrong with the webserver or the database server. It would be nice to be able to measure the time it takes to fully load the the page (images, css, javascript, etc). I have some code but I is not measuring the fully page.
Dim sw As New System.Diagnostics.Stopwatch
Dim req As System.Net.HttpWebRequest = CType(HttpWebRequest.Create("[URL]"), HttpWebRequest)
sw.Start()
Dim res As System.Net.HttpWebResponse = CType(req.GetResponse(), HttpWebResponse)
sw.Stop()
Dim timeToLoad As TimeSpan = sw.Elapsed
Measure How Many Bytes Of Data Does A Device Sent To Computer Using Program?
Nov 25, 2009ust want to ask if its possible for me to measure how many bytes of data does a device sent to my computer using vb.net?
View 3 RepliesMeasure Distance Between Two Or More Image After Edge Detection Feature Extration
Nov 23, 2010I need to read 10 images in 1 folder and do feature extraction onto 10 images.Does anyone can suggest any good edge detection by using C++ / VB.Net / C# language? After I can successfully detect the edge and write a new image file (in this case is generate 10 new edge detection filtered images, only black and white line image) within the same folder.Then lastly, I do not know any distance measurement able to calculate distance between each edge detection filtered-images (not the original image) and show the result in graph.How can read those images back and get the data of the edge?Keywords are edge detection and distance measurement.
View 2 RepliesMake A Console Application That Will Measure HTTP Page Load Time
Aug 31, 2009I need to make a console application that will measure HTTP page load time.
View 4 RepliesTiming Code - Measure The Performance Of Seven Sorting Algorithms In A Single VB 2008 Program
Sep 15, 2010I'm trying to measure the performance of seven sorting algorithms in a single VB 2008 program. I've tried using a Timer componend, the Stopwatch, and DateTime.Ticks but nothing works. The following simple code produces a result of about 500 (milliseconds), which is correct, but when I change 500 to 1000, I get a ridiculous result like 0 or 8.
[Code]...
Trim A Text If Text's Width Is Bigger Than A Specific Unit Of Measure?
Sep 26, 2009How do I trim a text if text's width is bigger than a specific unit of measure (for example 3 centimeter).
View 14 RepliesVS 2008 - Time Measure - Total, Average, Estimated And Finished Time
May 3, 2009I need a start date, a Total time passed until now, an average time per step, and a estimated time to finished. How can I do that? Also, I can close the application and when start up again I want to get the time counters as the last time, so How can I store that data is normal txt file (I say txt to take advantage of the ini app file which is a txt).
View 1 RepliesC# :: Correctly Using CancelEventAgrs?
Nov 18, 2011How should I correctly use CancelEventAgrs/CancelEventHandler?Does checking e.Cancel will return always the "right" result, even if the event eventually could consume some time?
Class Foo
Public Event Deleting As System.ComponentModel.CancelEventHandler
Private myObjectsToDelete As List(Of Object)
[code].....
.net - Will The Following List Populate Correctly
Jan 9, 2011I don't have access to VB.NET right now so I can't test this value:Dim lst As New List(Of String)(cookieValue.Split("$"c))i got this from another question , but was wondering if A. The list will populate correctly and B. What does the c represent?
View 2 Replies.net - CurrentThread.CurrentUICulture Is Set Correctly But Seems To Be Ignored By Asp.net
Apr 28, 2011Im struggling with gettings the values from the correct strings.txt in my resource files in my in folder when switching languages. I have a [URL] (for English) and a domain.nl (for Dutch). It however doesnt seem to matter which domain I use and how I set the currentUICulture, the language shown to the user is always the same!
[Code]...
.net - How To Correctly Use CultureInfo.invariantCulture
Jun 1, 2011I'm trying to read a number from a user imput (string) like:
'where "." is grouping separator and "," is the decimal character
dim strUserInput as string = "172.500,00"
dim ret as double
[code]....
How can I correctly use cultureInfo to return 172,500.00 (or 172500,00 or just 172500) to a double var?
Application Not Closing Correctly
Nov 12, 2011I'm having a problem over here; I'm developing a DirectX 9 application, and for some reason, I can't figure the way to close the application completely. This has never happened to me, to be honest. I am using Application.Exit(), which doesn't seem to do anything - it just closes the form, but the program is still running. I have also tried End, but it throws a run-time error I can't seem to figure out.
[Code]...
Asc Command Not Working Correctly
Dec 13, 2009I have been making a text based noughts and crosses game and trying to convert an alpha grid reference into a number to run the logic sequence that decides whether the an input is valid. I am using the asc command to convert but it just keeps putting up the error: Conversion from string "a" to type 'Double' is not valid, when it reaches the line If (Asc(Left(choice, 1)) >= 65 And Asc(Left(choice, 1)) <= 67) Or (Asc(Left(choice, 1)) >= 97 And Asc(Left(choice, 1) <= 97))Choice is the input and has already been checked for length, whether it contains an alpha and numeric input (and where they are) and whether the numeric value is valid.
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