Detect For A Specific Character In A String?
Jul 11, 2011
so in a program I'm working on in VB.NET I'm trying to make it so I can take in a list of strings (each on a different line). For each line I want to take in the line, and break it up into three parts. The first part goes from the beginning of the string to the first colon in the string, the second part goes from the first colon to the at symbol, and the last part goes from the at symbol to the end of the string.
For example, I'd take in a line of the series of lines: hello:world@yay
I'd want to break it into three separate strings of "hello", "world", and "yay".
How would I do such a thing in VB.NET?
View 3 Replies
ADVERTISEMENT
Feb 17, 2011
I am writing a hangman type game and I am displaying the word to the user in a label as all *'s, but I cannot figure out how to have just one of the *'s changed in the label to the correct letter when the user inputs the correct letter into the text box and clicks the check letter button.Everything else in the program works perfectly, except for this part.[code]When I use the .Replace it changes all of the *'s to the correct selected letter.
View 2 Replies
Oct 23, 2010
I need to get the last Character in a text string and to decide if it is an equals sign or not.
View 5 Replies
Nov 30, 2011
Is there a way to detect a Chinese character in a string which is build like this:
dim test as string = "letters ä¸åœ‹çš„"
Now I want to substring only the Chinese characters. But my code is database driven, so I can't substring it, because the length is always different. So is there a way I can split the string, from the moment I detect a Chinese character?
View 1 Replies
Dec 1, 2010
How do I make a regex that can detect a certain character string that is either all by its self in a line, or separated by white space.
If I have the line:
"ot"
Or the line
"sdf gdfg dv ewrsef fvdf ot sdfsd sdot"
I want to be able to detect the 'ot', except for the one that is 'sdot'
View 5 Replies
Dec 22, 2009
The string is coming from this [url]...
View 2 Replies
Mar 4, 2011
What is the simplest way to count the number of occurances of a specific character in a string.[code]
View 8 Replies
Apr 4, 2010
I'm trying to copy only the first 15 characters(Including spaces) of a string from TextBox1 to Textbox2If the Text in TextBox1 is:abc1234 jklmnopqrst/uvxyThen the Text in TextBox2 should read as:
View 7 Replies
Dec 1, 2011
I was wondering how I would replace a specific character at a specific position.[code]...
View 7 Replies
Dec 12, 2010
[Code]...
For each character of this string I want a new character out of the string and then remove the character from the list of characters that still maybe used for other characters. It may not get the same character, you could basically just call this encryption, but it's not what I am making. I don't want to waste my time doing this one hour while VB can do this for me in <1 second.
View 12 Replies
Sep 27, 2010
Anybody knows how to detect that the user has pressed on the ESC key when in a FileSave or FileOpen Dialog, in VB.Net ?I have added KeyPreview to the form on which the FileDialog rests, but the key press is not seen and the FileDialog returns the file name I had given it as a suggestion to the user upon calling the FileDialog.
View 2 Replies
Jun 16, 2010
Anybody knows how to detect that the user has pressed on the ESC key when in a FileSave or FileOpen Dialog, in VB.Net ?have added KeyPreview to the form on which the FileDialog rests, but the key press is not seen and the FileDialog returns the file name I had given it as a suggestion to the user upon calling the FileDialog.
View 2 Replies
Mar 27, 2010
I'm writing a program and it's got a textbox for the user to enter values. Since the textbox text property should only be a "number", my program need to detect invalid charaters like "*/&()$" and tell the user to only enter a number. Does anyone have an idea how to do that?
View 6 Replies
Feb 16, 2012
the coding is to 'Get input string and put its character into List, and replace the character with other.'but having problem putting each character into List and also replacing it,[code]
View 2 Replies
Jun 13, 2010
I've been working with the substring command and after coding up all the things I needed it to do, I saw a post on here where the "For Each" statement was used basically to do the same thing.Lets say we just want to take a string apart one character at a time and add each character to a label. Which would be more efficient?I made a cheap example to show ...
Code:
ABinary = "0110 1100 0001 1011"
For x = 0 To Len(ABinary) - 1
[code].....
View 15 Replies
Jan 19, 2009
Below is the code i am using for user input which works fine apart from one thing that i can not work out how to do.I want to detect if a user had inputed a character in the wrong place. The correct input is:
D:Folder name
The incorrect input is:
D:Folder name
How would i detect the extra '' at the end?
Private Sub OK_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OK.Click
Select Case Doc.Text
Case ""
MsgBox("Invalid Path")
[code].....
View 8 Replies
Oct 29, 2011
I want get the most specific from the current url in visual basic .net.I've tried several code but it just was the same.I have this code:
Dim CurrentURL1 As String = Request.Url.PathAndQuery
The code will result like: /FolderName/CurrentUrl.aspx
What I want is, just get the 'CurrentUrl.aspx'.How to get that?
View 1 Replies
Jun 6, 2011
Is it possible that after you find a string, backup until you find a specific character and copy it?For example, I am looking for "bread". The text is milk8andbread. Would it be possible to start at bread, back up until eight, and just copy "andbread"?
View 4 Replies
Jun 21, 2012
"Testing.BSMain, Text: Start Page"
I would like to substring the value above and returning me only the value after the ": " in vb.net. How can i do that?
View 2 Replies
May 21, 2009
I'm trying to transfer only the numbers after the £ Character from Textbox1 into Textbox2. If textbox1 contains numbers before the £ character then it just transfers the first numbers before the £ character which is not required.[code]
View 5 Replies
Oct 31, 2009
I have a block of text in a text .txt file that looks like this: [code]I've tried reading every character and entering them into a 2D array (failed)I've tried splitting them into individual lines and entering them into a 1D array (Success, but very difficult to target individual characters from this, and will take a long time to set up as I only did this for 10 lines)
View 2 Replies
Apr 20, 2011
How would you select the last part of a string starting at a specific character count. For example I would like to get all text after the 3rd comma. but I get an error saying "StartIndex cannot be less than zero."
Dim testString As String = "part, description, order, get this text, and this text"
Dim result As String = ""
result = testString.Substring(testString.IndexOf(",", 0, 3))
View 6 Replies
Feb 16, 2009
I have a function read the text file line by line, i have to detect a specific word in the text file befere proceed to another action. But I can't use substring because i not sure exact location of the word.
View 1 Replies
Jun 16, 2009
I have created a class which builds a Crystal report and displays it in a report viewer. However, without the Crystal Redistributable, the code crashes. How can I programatically detect whether the end-user has the Crystal DLL installed? The code I am required to include is:
[Code]...
View 5 Replies
Jun 9, 2011
I am very new to vb.net. I need to be able to see when a certain popup window appears in another application. The time time it takes to appear varies so I need to know when it appears and in some cases when it has closed.
View 1 Replies
Mar 26, 2012
I have a picturebox that the user can draw on and I need the program to detect if a specific point has been drawn on. For example, I need the program to detect whether the user drew at location (8,8) and give a basic True/False answer.
View 4 Replies
Oct 30, 2011
Someome knows some utilities that can detect all the API calls of a specific external application? The application I would like to detect is a console application and, being without form, Spy++ don't find it.
View 2 Replies
Dec 13, 2010
i am a beginner in vb8 i have a text file named alarm.txt,sample alarm.txt file is shown below
can someone help me to read the alarm.txt file and extract data.for eg
[Code]...
View 1 Replies
Mar 15, 2009
i have created an application using vb.net 2008 which will maintain backup of the database in system32 folder
View 2 Replies
Mar 27, 2010
[URL] In my Windows Form, I wanted the user to give an option to draw all over the form. But, if the user while drawing, enters the region 1, I want to assign a value to variable, say a=1. Correspondingly, if the user without leaving the mouse button previously enter the region 4, I want to b=1.After the user leaves the mouse button, I wanted to compare a and b. If both of them are equal, then Result=Done else not.
View 3 Replies
