Reach A Substring For Each Row From A Txt File?
Mar 11, 2009
I have created a program which opens a file, eliminates the delimiters and save the info into another file.What I need is to reach a specific numbers of characters in the string (which is between 14 and 19 and tells us the date) and to compare it with the current date. If the date is equal or later than today's date , save all lines in to another file. Pease help me to walk through the string and get the substring and finally compare with the current date.
[Code]...
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Sep 30, 2011
I am developing an application that will do 2 things:
- connect to a webservice
- Upload/download files through WebDAV.
Seems to work fine, but I am having an issue with debugging. Since WebDAV is installed on the server, i have to publish the webservices there aswell, as the webservice is going to access the file locally (serverside) after upload to the server. This makes it impossible for me to debug the webservices. When i switch to the local services for debug, they cannot reach the file that was uploaded to a remote location (the server). Is it possible to install a local WebDAV server, even if i do not have IIS set up? Just for testing purposes?
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Oct 10, 2011
I'm trying to create a valid RegEx replacement pattern for correctly formatting specific .XML file names. Specifically, if a file name does not begin with a prefix, let's say, ACE_. If the XML file name and extension does not begin with ACE_, prepend the string ACE_ to the file name.For example, if my input source string is the following:
Widgets.xml
I would like to execute a single RegEx Replacement that would result in the string being:
ACE_Widgets.xml.
Conversely, if the string already begins with ACE_, I would like it to remain unchanged. Also,how can I include the pattern ".xml" to ensure that the string pattern for the file name and extension ends with ".xml" in the same matching pattern for the RegEx Replacement pattern? As for the match, I have some luck with the following:
^ACE_{1}[dD]+
Which indicates there is a match for the pattern if the input string is ACE_Widgets.xml and no match if the string is Widgets.xml
The RegEx pattern would suffice, but if you need to know the language in which I'd like to use the replacement pattern is in .NET 4.0 in either C# or VB.NET.
The following posting is close to what Im looking for, but with the inclusion of the *ix directory path prefix, and the use of preg_replace() in PHP, I'm having a bit of a struggle getting it to work with what I need to do:
Regular Expression: How to replace a string that does NOT start with something?
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Feb 3, 2009
How will I select a substring with 2 criteria? I have a Richtextbox where I select a number after a : with this code; For Each line As String In Richtextbox1.Lines Dim equalsPos As Integer = line.IndexOf(":") + 1 txtFound.AppendText(line.Substring(equalsPos, line.Length - equalsPos)) Next This is working ok, but the whole line.length is appended for number2. The line ex. Some text:my number some text-my number2. I want my number appended to txtFound, and my number2 appended to txtFound2. With my code only number2 can be appended correct.
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Nov 16, 2008
I am working on creating a program for my Visual Basic Programming class, and I have hit a snag. My problem is that we have a text file that lists the countries of the world, along with their population, area, capitals, etc. Well, each country is listed as one line, with all pertinent information following on that line. Some information is unneeded, like the Capital or the Continent. I have set up my variables for each piece of the line, and am planning on using a Do While (sr.Peek <> -1) Loop to read through the list.
My problem arises with .SubString. I can get it to parse the first word just fine by saying
Code:
variablename.Substring(0, n)
n being my variable for finding the .indexof the blank space.
After the first word, I can't seem to get .substring to parse any words or data from the file after the first word.
Code:
Option Strict On
Public Class Form1
[CODE]......................
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Jul 19, 2011
[code].....
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Jan 27, 2011
xxxx,2222,3333,44444,5555555ab,6666666,500000,500000,Haaaa
How to substring it step by step load to gridview?
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Nov 9, 2011
I have made the first part of this application it read the file and splits it up, injects into SQL where it pulled and edited. Now i need to create the part of the application that Exports the data back to the orignal layout. I have used Substring to read the infomation as it was the only simple way i could think of.
Example of the layout is below.
HEADER 29112055553378JOB COMPLETIONS
1 HSG885398 0 HS1 EP0 1.00 1.00 14.30
2 HSG885398 0 HS1 01 1.00 1.00 60.89
3 HSG885398 0 HS1 HS03 1.00 1.00 7.82
[Code].....
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Feb 24, 2011
Im making a class that represents a file. Im making a sub that reads data from one byte array into many properties. Now i need something that returns a byte array but only the first 4. Let me demonstrate because i can't think of a logical way of explaining. "something".substring(0,3) That would return a string containing "som" i need a function like that for a byte array
[code]...
Is there an existing function for this type of thing ? i've looked but didn't see anything that I understood.
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Jan 13, 2011
So, in my vertical scrollbar, the maximum value is 16. In my application, I made a Label to track the scrollbar's value, just for testing purposes. I noticed that when I move the bar to the bottom, the value is 6. And when a [i]release[/i] the button (stop holding it with the mouse), the value becomes 7. Something similar goes when I move the button to the top: It is 1, and when I release the button, it becomes 0. That's a bit weird, but what mainly bugs me is why I cannot reach value 16?
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Oct 19, 2011
I'm using visual basic 2008. I have try this code and its work. But the problem is I want to read the text line until it reach line that contain "T". I can only produce the output if I write looping until "T12". I just want to write the code loop until it "T" not "T12".
[Code]...
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Jun 22, 2010
I have a subroutine with a for i as integer=1 to 128 it should send 128 mouse clicks to another application sometimes it does sometimes it doesn't (it works well until it reaches 64 then the numbers go crazy). i suppose that because vb debugger reports that for my form there are 2 threads running (i have a Core2Duo processor and i've read somewhere that multithreading has something to do with the processor).Is there anything i can do to make the cycle reach the 128 clicks? i've tried setappartmentstate to STA, i've tried synclock monitor.enter nothing works, it fails it returns from the subroutine to where it started from and the next time the same story
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Jul 1, 2010
How to raise combobox_SelectedIndexChanged(object sender, EventArgs e) programmatically? Lets say i have method called ClearFields(). I want to call the event before i hit the end of Clearfields() method.
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Mar 10, 2011
Take a look at this[code]...
That Assembly is a class.vb component in which there are the following lines of [code]...
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Jun 4, 2011
Not so much a VB question more of a Net question.Does anyone have a logical explanation as to why the Maximum value of a Scrollbar is impossible to reach by user interaction?The documentation explains clearly the how, it just gives no reason for the why.
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Nov 23, 2010
I have an inputbox with ok cancel buttons in my class.The user should fill in numbers in the inputbox and if nothing is entered and the user presses cancel or ok, the user get's a msgbox that he should enter something and after this the inputbox should show up again until something has entered.
I now have the following code:
Dim answer As String
Dim amount As Integer
Dim result As DialogResult
[code]....
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Feb 3, 2011
I am trying to remove VB6 type code and use VB.Net code, in particular, remove "Left" and use "Substring". This code does not do what the old style code does. It seams to ignore the first two chars and forces the msgbox prompt no matter what I type in the textbox (at "Leave").
Private Sub TextBox5_Leave(ByVal sender As Object, ByVal e As System.EventArgs) Handles TextBox5.Leave
If TextBox5.Text = "" Then
'Do nothing
[CODE]...
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Apr 5, 2011
I have a this program I have to write but I have no clue where to even start.New Years Ball Drop?Design a program that replicates the Times Square New Year�s Eve ball drop. You can use a picture from the Internet of the ball you wish to use.Functionality Requirements:
-The ball will take exactly 30 seconds to move down the pole
-Need a timer to count down from 30 and reach 0 when the ball is at the end of the pole
-The timer will randomly change colour every few seconds
- When the ball has finished descending, the text �Happy New Year!� will display on the screen
-Need a button on the form that, when clicked, stops the ball drop and timer (so screenshots can be taken). When the button is clicked again, the timer and ball drop should resume from where it left off.
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Jul 17, 2009
When you reach a captcha while creating accounts on some sites, is there code that would make the program pause and a message box pop up that would ask for input for the captcha code?
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Jan 20, 2010
i am trying to parse the following:
[code]...
If I wanted to pull the #'s between: <REACH RANK=" and "/> how would I do this with regex? I tried it, and it'd say "Too many: )'s"....then i'd remove it...then it'd say: "Too Few )'s".
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Oct 8, 2010
I'm getting an ArgumentOutOfRange error when using substring function in .NET. I'm new to .NET so probably doing something wrong. I have a txtField, which is a text field component in GUI. I'm using Microsoft Visual Basic 2010 Express
txtField.Substring(txtField.Length-4,txtField.Length-1)
If txt.Field contains only numberic values it works ok, but as soon as the text field contains characters it breaks.
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Feb 7, 2011
I have a piece of code that I am using a for next statement and stepping through a string a little bit at a time. The problem is I get an error towards the end of my loop because my substring goes beyond the bounds of my string.
Dim Right As Integer = StartNumber.Value
Dim left As Integer = LengthNumber.Value
Dim i As Integer = 0
[code]....
Also my streamwriter is not writing to my file?
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May 24, 2009
I have a string that contains a file location[code]..."
I want to get a substring of String 1 that does not contain the name of the actual file (e.g. "C:SomeDirectoryEntries")
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Aug 10, 2011
Which one would you prefer to extract a sub-string from the given string and why?I am thinking that since Left and Right are VB functions and not .NET functions, they may cause problems in the future in terms of compatibility.
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Jun 27, 2012
This question was resolved in C#, and I don't know how to do it in VB net. I want to search through a directory of files and see if my string is contained within any of the filenames. Then I just need a bolean answer if it exists or not. I know how to use the file.exists...this is not what I need. The link below is to the C# response. How to check if filename contains substring in C#
[Code]...
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Feb 3, 2011
Example i have string =D:aaabddddd.jpg
string =D:aaabdddddfsdfsdfdd.jpg
i want to flexible sub string from right to ""
so answer=ddddd.jpg and dddddfsdfsdfdd.jpg
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May 31, 2009
My problem is at SubString will do the job for me, but next string could look like this: 101OldGranny91222 So I can't determind the number - for the split - of char in the string, because it changes depending on there name etc.
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Mar 7, 2011
Example : Dim t as string="My game is football"
How can i write flexible code substring word?So Result is
My
Game
Is
football
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Apr 1, 2012
I have a text label, split half-and-half with a "/".label1.text = "I like dogs/I like cats"This will not be the same text (and not the same textlength)every times. I need to delete everything before the "/" with only a button. (for example, delete "I like dogs")
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Oct 9, 2011
substring and the indexOf method
I have this problem that I'm going in circles on. The error message is "no accessible IndexOf can be called with these arguments."
My professor said that "to search for the string Los Angeles and substring will return it from the textbox, but it needs to know what position to start returning a word at, and that is where the IndexOf comes in." Does that mean substring and IndexOf are used together? That's what I did and may be the problem. Here's the code:
Private Sub btnOrder_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnOrder.Click
'Declare variables
[Code]....
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