Get The Numerical Value Of Letters In A Txt File?
Apr 2, 2010
I have code that gets the numerical value of letters in a txt file, it returns a 77 for an M for instance.Anyways so M(077) is the first value i get, and becuase its the first i need to have it effect the first pixel in my image (0,0) i need to take the first value of M 0, and put it in for reds ones diget, lets say 120, i need to put the second integer 7 in the greens one place 127, and i need to do the same with blue, also 127. How do i do this? Hers some of my code.
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Sep 24, 2009
im looking for a code setup where the program can get a numerical value based on letters in a user inputted string, and output the value A=1, B=2, C=3, etc
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Nov 4, 2010
I want my code to look at a textbox to determine which letter is in it, & assign a numerical value to a second textbox, based on what letter is in the first textbox.[code]The problem is that, when I step through the code, I can see that Form20.txtGrade1.text DOES EQUAL "C", but my code skips over the part that says Form20.txtGrade1a.text = "4". Instead, if I hover over that part, I can read Form20.txtGrade1a.text = " ".When I do not step through the code, and just run it, I see the two textboxes, with the first one containing the C, and the second one is just blank.
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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...
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Apr 18, 2011
I'm a complete novice with VB and any coding in general, but as life will have it, I have to create a program for my Final Year Project at university.In short, the idea is to open a file that has many lines of numerical data, then select the required lines, do some calculations on them and write it into a new file, but the new file must have its own format and the calculations must go into the correct lines.
Im struggling really with how to get it to read the file and then write the new one. Currently I have it so the user can open the file and it will display the data into a text box. I want to then be able to click another button that will convert that data into a new type, and in turn display that in another text box. Then have a save button to save the newly created data. This is what I have so far...(it's not much.I havent really got much of a clue what I am doing lol)
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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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Apr 2, 2012
I'm keeping track of some things that are numbered and others that are lettered; while NumericUpDown is perfect for selecting numbered things, I need an analogue for selecting lettered things. The obvious choice would be a listbox that just contains all the letters of the alphabet. But I need to show only the appropriate range of letters, so if I want to use a listbox, I need to write a function that populates the listbox with the first n letters of the alphabet; if n > 26, it should continue with aa, ab, and so on. How do I do this?
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Mar 30, 2012
I want to creat a programm with an interface that can do:
1.Open a text file
2.Choose the file
3.Display the file(in a dialog box for exemple)
4.Count the characters from it and then display the result in a textBox
I made this program but the problem is that the result is not correct.For exemple:my text file has 14 characters and if i run the programm the result from textbox is 84.I don't know what is wrong?!I'm biginner in VB and i what to know how i can fix this error.[code]
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Jan 16, 2011
what I am trying to do it read a form of hex that is encoded I know the cypher what I want to do is make a program for myself that will let me compare 2 files. Both in hex decypher the hex to numerical.I call the hex backwards hex what I mean is this..in stead of "04 58 d2 d2" it is "d2 d2 58 04" I know the number it translates to is 72930002I want to show the entire list in a list box where I can choose wich I want to look at.
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Mar 30, 2012
So i have a text in my textbox something like this: [code] Let say that text is divided in 3 fields. Name, Age, Salary. Each field is separated by "*"How do i check if there is no empty field using VbNullString?And how do i check if the second and the third fields are numerical?End the execution if the fields are not correct with a message
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Sep 26, 2011
I have an issue in which I am binding a table from sql by executing query[code]...
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Nov 28, 2011
In my form I am able to search the record within a date range from MS Access database and display it on a ListView by using the following code :
[Code]...
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Sep 9, 2009
Would it be possible to take the numerical contents of a textbox that looks something like:
100
300
456
674
50
25
and on button click have them added together and display the total on a label.
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Jan 8, 2009
The program consists of making 2 text boxes, one labeled Age, and one labeled Name.The Name text box must return the name in all uppercase.If the Age text box isn't filled with a numerical value, you should receive a message saying "need a number" and return your cursor to the age box.2 command buttons "Process" and "Exit"
I tried getting started, but I usually always work better when i have a beginning!
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Oct 28, 2009
i have a program using a select case to convert letters to special charaters. My question is how can I get the code to read upper and lower case letters without having to put the upper case letters in my select case statement. Example: Part of my code is
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Feb 21, 2010
I am trying to figure out if i can assign a numerical value to an item in the check box. I have two forms one with the checkbox and another that will show the total amount based on what was checked in the checkbox.
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May 15, 2010
what code i could use to convert american number 1-10 to roman numericals. It says i have to use a select case statement to identify which roman numeral is the correct translation of the integer.
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Dec 22, 2010
Is there a way to USE the input from your microphone and speech recognition to convert the tone and frequency of a voice into a number and then match it against a database for a single spoken word. When ever I type voice recognition it just gives me how to listen to what someone is saying i have source code for that but I want to create a verbal authentication for my house. That way only certain people can give commands for the wireless modules to turn stuff off. and if some random person says off or something of the nature it wont just turn shit off, also im goign to make it into a verbal password system for my email.
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Mar 20, 2012
I am looking for a way to convert the Arabic numerical string to an English
numerical string "0123456789"
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
dim Anum as string =
dim Enum as string =get_egnlishNum(Anum)
End Sub
private function get_egnlishNum(byval _Anum as string) as string
''converting code
End function
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Sep 27, 2011
When I go to run the program and try it out, I keep getting my error message that I am not putting in a numerical value even thought I am.
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Jun 10, 2011
I'm trying to change the string value (123A456B789) into a numerical value like this '123' 'A=0' '456' 'B=1' '789', but for the same reason as saving the time in writing 50 lines just to incorporate this function I need a quicker solution...
Here's my code but bare in mind I am still new at VB.NET and the code is only to change A and B to numerical values.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As
[Code].....
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Dec 29, 2009
I have nine always changing values that are strings I need to know how to sort them. I have each of the nine values each on it's on panel. I want to make the panels stack highest value to lowest value. Shot of writing every possibility of combinations and let's say that would take forever.
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Oct 27, 2011
How do I take the input of a text box as as string and write out a procedure for a button that takes the input and outputs a variable in the list box. For example i want to assign various values to strings such as the price of a chair = $10 and price of table = $40 . How do would you write it so that when you click the button it takes the word chair in the text boxs and outputs a value in the list box.
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Feb 26, 2012
I've made a temp converter and i'm looking to get some validation for it. I have looked online, but most do it in a way that i don't want.
I have 3 text box's, of which i only want numerical values and nothing else to be entered into the boxes. However, i would like the validation to run when a button is pressed (in this case, the calcualtion button). I would like a messagebox to pop up stating there is a non-numerical value entered into any of the boxes and for the calculation code to not run.
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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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Apr 29, 2011
net there are many standard colors are available . But how to know there numerical value. I want those numerical values so that by changing those I can obtain the required shades which are not available as standard colors.
E.g for black we know numerical RGB equivalent is 0, 0, 0 But what are RGB values for olive color?
how to do this color name to numeric RGB value conversion
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Oct 6, 2011
I'm trying to write a Database manager in VB (2010) that updates a SQL database that compiles and summarizes my financial records. The code works, but I'm having issues with one exception that I think I understand, but can't circumvent. I've built an I/O form that enters a series of purchases and sales into a temporary datatable. After review of the list, the program connects to the database and executes the SQL. That all works and isn't a problem.
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May 26, 2009
I have declared and array
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I have created a SWAP function that does the swapping if the index value is greater than the index+1 value, with a loop that will iterate through the array (assuming that you dont have to specify how many iterations are required) until the array is sorted.
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Mar 26, 2011
How do I validate textboxes so that they accept only numerical input (1 2 3 etc and not abc @$ etc)? Is there some kind of property of the textbox that I have to change?
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Mar 4, 2010
For the code below I get an error for the 1 to 5 part. It says end of statement expected. Is the way i've set out the syntax wrong, e.g the 1 to 5? [code] Also other than storing text to a rich text box what else can store numerical data in multiple lines?
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