Search For A Substring In A Textfile?
Mar 24, 2009I want to search for a substring in a textfile and delete this substring. How can this be done?
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Search An Array To Select First Substring Containing Specific String?
Feb 21, 2010I need to create a code that searches an array of movie titles. When the user enters a specific string, the first movie title that contains that string is displayed. For example, entering "he" would display Sherlock Holmes as opposed to the Blind Side. I don't know how to create a code that reads a string that the user enters.[code]...
View 2 RepliesWay To Search My Textfile
May 25, 2012I have a text file which has two columns and each column is separated by a space (), the first column is a string and the second column is a numeric field.
What Im trying is to read the numeric field in textbox1 and match it to every numeric field in column2 and if the number in textbox1 is not greater than the field then to copy that row (column1 and column 2) into another textfile.[code]...
[2008] Textfile Search For A String Between Strings
Jan 28, 2009I need to search for a string in a text file. This string can change so I think I need to set a before and after string with the result being whatever is between. I've started by scrapeing the info from a Printers HTML page.
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C# - Prepend A Substring If The Source String Does Not Begin With The Same Substring?
Oct 10, 2011I'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?
[2008] Richtextbox Substring - Select A Substring With 2 Criteria?
Feb 3, 2009How 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.
View 4 RepliesWay To Search A Richtextbox Textfile That Will Highlight All Word Finds And Then Send Them To Another Richtextbox?
Aug 26, 2010I have a richtextbox with a large file inside....I want to be able to search for "Fornication" within the text (KJV Bible) and have every instance of that word to pop up into another richtextbox along with the scripture it is in.
View 1 RepliesCreate A Textfile And Write Some Lines Into The Textfile?
Oct 18, 2010I am trying to create a textfile and write some lines into the textfile. However, the code that i am using can only write when the textfile is already created in the directory.
For this case, can i actually allow my script to search if a textfile is being created, if not create a textfile ???
Dim pathdir As String = "C:workingdir est.txt"
If System.IO.File.Exists(pathdir) = True Then
Dim objWriter As New StreamWriter(pathdir)
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Using Substring - Remove "Left" And Use "Substring
Feb 3, 2011I 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
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.net Substring Not Working?
Oct 8, 2010I'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.
For Next Statement Using Substring?
Feb 7, 2011I 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
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Also my streamwriter is not writing to my file?
Get Substring From Start Until Last?
May 24, 2009I 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")
Left And Right Vs. Substring()?
Aug 10, 2011Which 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.
View 3 RepliesSee If A Filename Contains Substring In Vb?
Jun 27, 2012This 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#
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Substring From Right To Symbol?
Feb 3, 2011Example 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
SubString With A Twist?
May 31, 2009My 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.
View 4 RepliesSubstring Word In .net?
Mar 7, 2011Example : Dim t as string="My game is football"
How can i write flexible code substring word?So Result is
My
Game
Is
football
Use A SubString Or A Indexof?
Apr 1, 2012I 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")
View 6 Replies.net - Substring And The IndexOf Function
Oct 9, 2011substring 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
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Asp.net - Multiple Lengths For Substring?
May 17, 2012Can a substring have mutiple arguments? I am pulling a substring from a drop down list into my database for records, the string is between 6 and 8 numbers, is it possible to pass more than one argument to make this work?
Sample data:
DropDownList
123456 | Name
1234567 | Name
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BindingSource Sort By Substring
May 4, 2010I want to sort the binding source column (Product Code) which formatted like (AA-AAA AAA AAAA)
but i do not want straight sort on product code column, i want the sort as :
substring of 1,2 + 8,3 + 3,3 and then the rest of the column.
I know i can do it in the table direct using the OrderBy and the substring function, but the problem is that sort is not static it is dynamic according to different status means it change the substring order.
C# - Substring Not Working On ToDouble - ASP.NET
Aug 17, 2011I am using ASP.NET with VB.NET. This is my code
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I just want to trim the value to give me the 20.00 and convert it ToDouble End Result Must be 20.00 C# code will also help me undertand what needs to happen and why I am getting the error messsage Index and length must refer to a location within the string. Parameter name: length
Converting A Substring To Decimal?
Mar 5, 2010I am working on a simple Point of Sale Program for my Intro to Visual Basic class. I am trying to pull a substring with a decimal point (ex 0009.50) from the string I get from my readline and turn it into a decimal value for calculating money values. Something is wrong with they way that I am converting and I can't find how to to it write in my book.
Private Sub addButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles addButton.Click
Dim currentLine As String = String.Empty
[Code]....
Error When Removing A Substring
Jul 8, 2010I'm trying to remove a sub string after the last occurrence of a ".". [ocde]...
When I debug, I get an argument out of range exception for the second, counter, parameter; dummy in this case. I'm not sure why; the total length of my test string is 72, when debugging, the dotIndex is 68 and the length is 71, so I'm within the bounds of the string.
Extract Certain Substring From String In VB 6.0
Sep 8, 2009This is a tricky situation. I want to extract a certain substring from the strings given below, using VB 6.0. I process each string (row) in a for loop one by one.
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Find A Substring Within A Stringbuilder?
Jan 14, 2007I want to keep away from string object. I have a stringbuilder object, and I want to know if it contains 'Firefox'.
View 6 RepliesGet A Substring Of A Datgridview Cell?
Aug 15, 2011My application is in VS2008 coded in Vb.net. I have a datagridView which is getting populated from the Database.I has RegNo,RollNo,Name etc fields.The data in the Name column of database is coming from 3 columns of a certain table from database. This is how im concatinating it and displaying in datagrid.
SELECT StudAllocDtls.RegNo,StudAllocDtls.RollNo,AdmittedStudents.SurName + ' ' + AdmittedStudents.FirstName + ' ' + AdmittedStudents.LastName
My issue is i want to save this data in some other table which also has Surname,FirstName,LastName columns in the database. Im not able to split the column data present in datagridview cell into three fields. For Example:Name column in datagridview is having Name : Sachin Ramesh Tendulkar. I want to divide this string into three like : Sachin for Surname,Ramesh for First Name,Tendulkar for LastName.
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How To Change Substring IndexOf
Feb 23, 2012I'm filter my Listview with cboMonth my format date MM/dd/yyyy..Now I want change my format date dd-MM-yyyy.[code]
View 11 RepliesIDE :: Extract A Substring From The Given String?
Aug 25, 2009got a string "Douglas". how do i extract a substring from the given string? how do i add a character or string in the middle of the word?
View 2 RepliesReach A Substring For Each Row From A Txt File?
Mar 11, 2009I 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.
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