I have a string that is being passed from a web form as:
ABC_12345;DEF_78901
how can I get the prefixes of each value and then combine those and pass such as to SQL
'ABC','DEF'
First Split the string into Array
Dim DBSplit1() As String
DBSplit1 = YourString.Split(";")
'Then get the the Prefix of you string
Dim Result As New List(Of String)
For Each item As String In DBSplit1
Dim rs As String = item.Substring(0, 3)
Result.Add(rs)
Next
'Then join the list of string with comma
Dim StringResult As String = String.Join(", ", Result.ToArray())
Related
I have the a string in below format
Dim str as String = "[1_5],[1_3],[1_5]"
The part before the _ can be variable is not a fix number
i need to convert it in to format
"5,3,5"
i have used the below code to obtain all the number that i need in the new string in the matches Item Groups
Dim pattern As String = "_(.*?)\]"
Dim matches As MatchCollection =
Regex.Matches(rowpanel.getRequestedArea_selectionArea(), pattern, RegexOptions.Singleline)
My question is how i can join all the Groups to obtain the final string format ?
A Regex solution could be
Dim x = matches.Select(Function(g) g.Groups(1).Value)
Dim final = String.Join(",", x)
A Split and Join one is
Dim blocks As String() = str.Split(",")
Dim result = New List(Of String)()
For Each s In blocks
result.Add(s.Split("_")(1).Trim("]"))
Next
Dim final = String.Join(",", result)
You can do something like this using RegEx and replace:
Dim str As String = "[1_5],[1_3],[1_5]"
Dim RegX As Regex = New Regex("\[\d{1}_")
Dim match As Match = RegX.Match(str)
If match.Success Then
str = Replace(str, match.Value, "")
str = Replace(str, "]", "")
End If
Alternative with simple and readable loop but multiple lines of code wrapped with a method
Public Function ExtractNumbers(text As String) As String
Dim current As New StringBuilder()
Dim write As Boolean = False
For Each character As Char In text
If character = "_"c Then
write = True
Continue For
End If
If character = "]"c Then
write = False
current.Append(",")
Continue For
End If
If write Then
current.Append(character)
Continue For
End If
Next
current.Length -= 1
Return current.ToString()
End Function
Usage
var extracted = ExtractNumbers("[1_5],[1_3],[1_5]")
Console.WriteLine(extracted)
' 5,3,5
I have this URL
https://www.google.com/maps/place/Aleem+Iqbal+SEO/#31.888433,73.263572,17z/data=!3m1!4b1!4m5!3m4!1s0x39221cb7e4154211:0x9cf2bb941cace556!8m2!3d31.888433!4d73.2657607
I am trying to Extract 31.888433,73.263572 from the URL
and send 31.888433 to TextBox 1
and 73.263572 to TextBox 2
Can you give me an example how can i do this with regex or anything else
You can use string.split(). This method takes an array of chars which are the discriminants for the splitting. The better solution is to split by '/', take the string that starts with '#' and then split it by ','. You'll have an array with two string: first latitude, second longitude.
Should be immediate using LINQ
The explanation is in the code comments.
Dim strURL As String = "https://www.google.com/maps/place/Aleem+Iqbal+SEO/#31.888433,73.263572,17z/data=!3m1!4b1!4m5!3m4!1s0x39221cb7e4154211:0x9cf2bb941cace556!8m2!3d31.888433!4d73.2657607"
'Find the index of the first occurance of the # character
Dim index As Integer = strURL.IndexOf("#")
'Get the string from that the next character to the end of the string
Dim firstSubstring As String = strURL.Substring(index + 1)
'Get a Char array of the separators
Dim separators As Char() = {CChar(",")}
'Split the string into an array based on the separator; the separator is not part of the array
Dim strArray As String() = firstSubstring.Split(separators)
'The first and second elements of the array is what you want
Dim strTextBox1 As String = strArray(0)
Dim strTextBox2 As String = strArray(1)
Debug.Print($"{strTextBox1} For TextBox1 and {strTextBox2} for TextBox2")
Finally Made a working Code Myself
Private _reg As Regex = New
Regex("#(-?[\d].[\d]),(-?[\d].[\d])", RegexOptions.IgnoreCase)
Private Sub FlatButton1_Click(sender As Object, e As EventArgs) Handles FlatButton1.Click
Dim url As String = WebBrowser2.Url.AbsoluteUri.ToString()
' The input string.
Dim value As String = WebBrowser2.Url.ToString
Dim myString As String = WebBrowser2.Url.ToString
Dim regex1 = New Regex("#(-?\d+\.\d+)")
Dim regex2 = New Regex(",(-?\d+\.\d+)")
Dim match = regex1.Match(myString)
Dim match2 = regex2.Match(myString)
If match.Success Then
Dim match3 As String = match.Value.Replace("#", "")
Dim match4 As String = match2.Value.Replace(",", "")
Label1.Text = match3
Label2.Text = match4
End If
End Sub
Dim url As String = "www.google.com/maps/place/Aleem+Iqbal+SEO/#31.888433,73.263572,17z/data=!3m1!4b1!4m5!3m4!1s0x39221cb7e4154211:0x9cf2bb941cace556!8m2!3d31.888433!4d73.2657607"
Dim temp As String = Regex.Match(url, "#.*,").Value.Replace("#", "")
Dim arrTemp As String() = temp.Split(New String() {","}, StringSplitOptions.None)
Label1.Text = arrTemp(0)
Label2.Text = arrTemp(1)
Getting an error on this code which is part of a function to receive a message, it takes the querystring values and splits them or at least is supposed to right now it gives me an index out of range trying to assign the value to paramValue as string=params(1).ToString and I am not sure why?
Dim QueryString As String() = context.Split("&")
Dim QuerySet As String
Dim Params As String() = Nothing
For Each QuerySet In QueryString
Params = QuerySet.Split("=")
Dim ParamKey As String = Params(0).ToString.ToLower
Dim ParamValue As String = Params(1).ToString
Not an answer, but won't fit as a comment:
For Each QuerySet As String() In context.Split("&"c)
Dim Params As String() = QuerySet.Split("="c)
Next
Add some error checking to your code:
Dim QueryString As String() = context.Split("&"c)
Dim QuerySet As String
Dim Params As String() = Nothing
For Each QuerySet In QueryString
If QuerySet.Contains("=") Then 'procede
Params = QuerySet.Split("="c)
Dim ParamKey As String = Params(0).ToLower
Dim ParamValue As String = Params(1)
'use variables
End If
Next
Domain\X_User|X_User,Domain\Y_User|Y_User,
I'm using a SSRS report and I'm receiving the above value, I want to write visual basic function in the report ( Custom code) to split the above string and return the following value:
X_User,Y_User
I tried to write this code inside a custom code of the report body:
Public Function SubString_Owner(X As String) As String
Dim OwnerArray() As String = Split(X, ",")
Dim Names As String
Dim i As Integer = 0
While i <= OwnerArray.Length - 1
Dim NamesArr As String() = Split(OwnerArray(0), "|")
Names = NamesArr(1) + ","
i += 1
End While
Return Names
End Function
The problem is when trying to split OwnerArray(i), it gives an error but when using a fixed value, like zero, it builds fine. Can anyone figure out why this is?
Here is a more generic solution that will work with any number of items:
Dim sourceString As String = "Domain\X_User|X_User,Domain\Y_User|Y_User,"
Dim domainsAndUsers As IEnumerable(Of String) = sourceString.Split(","c).Where(Function(s) Not String.IsNullOrEmpty(s))
Dim usersWithoutDomains As IEnumerable(Of String) = domainsAndUsers.Select(Function(s) s.Remove(0, s.IndexOf("\") + 1))
Dim users As IEnumerable(Of String) = usersWithoutDomains.Select(Function(s) s.Remove(s.IndexOf("|")))
Dim result As String = users.Aggregate(Function(s, d) s & "," & d)
Or if you want it as a single-line function, here:
Function Foo(sourceString As String) As String
Return sourceString.Split(","c).Where(Function(s) Not String.IsNullOrEmpty(s)).Select(Function(s) s.Remove(0, s.IndexOf("\") + 1)).Select(Function(s) s.Remove(s.IndexOf("|"))).Aggregate(Function(s, d) s & "," & d)
End Function
EDIT:
You may have to add Imports System.Linq to the top. Not sure if SSRS can use LINQ or not. If not, then here is a similar solution without LINQ:
Dim sourceString As String = "Domain\X_User|X_User,Domain\Y_User|Y_User,"
Dim domainsAndUsers As IEnumerable(Of String) = sourceString.Split(","c)
Dim usersWithoutDomains As String = String.Empty
For Each domainUser As String In domainsAndUsers
usersWithoutDomains &= domainUser.Remove(0, domainUser.IndexOf("\") + 1) & ","
Next
Dim strTest As String = "Domain\X_User|X_User,Domain\Y_User|Y_User"
MsgBox(strTest.Split("|")(0).Split("\")(1) & " " & strTest.Split("|")(1).Split("\")(1))
Here's a simple way that will work with variable data as long as the pattern you've shown is strongly followed:
Imports System.Linq
Dim strtest As String = "Domain\X_User|X_User,Domain\Y_User|Y_User,"
'This splits the string according to "|" and ",". Now any string without _
a "\" is the user and Join adds them together with `,` as a delimiter
Dim result As String = Join((From s In strtest.Split("|,".ToCharArray, StringSplitOptions.RemoveEmptyEntries)
Where Not s.Contains("\")
Select s).ToArray, ",")
Just in case LINQ is unavailable to you here's a different way to the same results without LINQ:
Dim result As String = ""
For Each s As String In strtest.Split("|,".ToCharArray, StringSplitOptions.RemoveEmptyEntries)
If Not s.Contains("\") Then
result += s & ","
End If
Next
result = result.TrimEnd(",".ToCharArray)
I have a string that contains comma delimited text. The comma delimited text comes from an excel .csv file so there are hundreds of rows of data that are seven columns wide. An example of a row from this file is:
2012-10-01,759.05,765,756.21,761.78,3168000,761.78
I want to search through the hundreds of rows by the date in the first column. Once I find the correct row I want to extract the number in the first position of the comma delimited string so in this case I want to extract the number 759.05 and assign it to variable "Open".
My code so far is:
strURL = "http://ichart.yahoo.com/table.csv?s=" & tickerValue
strBuffer = RequestWebData(strURL)
Dim Year As String = 2012
Dim Quarter As String = Q4
If Quarter = "Q4" Then
Dim Open As Integer =
End If
Once I can narrow it down to the right row I think something like row.Split(",")(1).Trim) might work.
I've done quite a bit of research but I can't solve this on my own. Any suggestions!?!
ADDITIONAL INFORMATION:
Private Function RequestWebData(ByVal pstrURL As String) As String
Dim objWReq As WebRequest
Dim objWResp As WebResponse
Dim strBuffer As String
'Contact the website
objWReq = HttpWebRequest.Create(pstrURL)
objWResp = objWReq.GetResponse()
'Read the answer from the Web site and store it into a stream
Dim objSR As StreamReader
objSR = New StreamReader(objWResp.GetResponseStream)
strBuffer = objSR.ReadToEnd
objSR.Close()
objWResp.Close()
Return strBuffer
End Function
MORE ADDITIONAL INFORMATION:
A more complete picture of my code
Dim tickerArray() As String = {"GOOG", "V", "AAPL", "BBBY", "AMZN"}
For Each tickerValue In Form1.tickerArray
Dim strURL As String
Dim strBuffer As String
'Creates the request URL for Yahoo
strURL = "http://ichart.yahoo.com/table.csv?s=" & tickerValue
strBuffer = RequestWebData(strURL)
'Create Array
Dim lines As Array = strBuffer.Split(New String() {Environment.NewLine}, StringSplitOptions.None)
'Add Rows to DataTable
dr = dt.NewRow()
dr("Ticker") = tickerValue
For Each columnQuarter As DataColumn In dt.Columns
Dim s As String = columnQuarter.ColumnName
If s.Contains("-") Then
Dim words As String() = s.Split("-")
Dim Year As String = words(0)
Dim Quarter As String = words(1)
Dim MyValue As String
Dim Open As Integer
If Quarter = "Q1" Then MyValue = Year & "-01-01"
If Quarter = "Q2" Then MyValue = Year & "-04-01"
If Quarter = "Q3" Then MyValue = Year & "-07-01"
If Quarter = "Q4" Then MyValue = Year & "-10-01"
For Each line In lines
Debug.WriteLine(line)
If line.Split(",")(0).Trim = MyValue Then Open = line.Split(",")(1).Trim
dr(columnQuarter) = Open
Next
End If
Next
dt.Rows.Add(dr)
Next
Right now in the For Each line in lines loop, Debug.WriteLine(line) outputs 2,131 lines:
From
Date,Open,High,Low,Close,Volume,Adj Close
2013-02-05,761.13,771.11,759.47,765.74,1870700,765.74
2013-02-04,767.69,770.47,758.27,759.02,3040500,759.02
2013-02-01,758.20,776.60,758.10,775.60,3746100,775.60
All the way to...
2004-08-19,100.00,104.06,95.96,100.34,22351900,100.34
But, what I expect is for Debug.WriteLine(line) to output one line at a time in the For Each line in lines loop. So I would expect the first output to be Date,Open,High,Low,Close,Volume,Adj Close and the next output to be 2013-02-05,761.13,771.11,759.47,765.74,1870700,765.74. I expect this to happen 2,131 times until the last output is 2004-08-19,100.00,104.06,95.96,100.34,22351900,100.34
You could loop through the lines and call String.Split to parse the columns in each line, for instance:
Dim lines() As String = strBuffer.Split(New String() {Environment.NewLine}, StringSplitOptions.None)
For Each line As String In lines
Dim columns() As String = line.Split(","c)
Dim Year As String = columns(0)
Dim Quarter As String = columns(1)
Next
However, sometimes CSV isn't that simple. For instance, a cell in a spreadsheet could contain a comma character, in which case it would be represented in CSV like this:
example cell 1,"example, with comma",example cell 3
To make sure you're properly handling all possibilities, I'd recommend using the TextFieldParser class. For instance:
Using parser As New TextFieldParser(New StringReader(strBuffer))
parser.TextFieldType = FieldType.Delimited
parser.SetDelimiters(",")
While Not parser.EndOfData
Try
Dim columns As String() = parser.ReadFields()
Dim Year As String = columns(0)
Dim Quarter As String = columns(1)
Catch ex As MalformedLineException
' Handle the invalid formatting error
End Try
End While
End Using
I would break it up into a List(of string()) - Each row being a new entry in the list.
Then loop through the list and look at Value(0).
If Value(0) = MyValue, then Open = Value(1)
You can use String.Split and this linq query:
Dim Year As Int32 = 2012
Dim Month As Int32 = 10
Dim searchMonth = New Date(Year, Month, 1)
Dim lines = strBuffer.Split({Environment.NewLine}, StringSplitOptions.None)
Dim dt As Date
Dim open As Double
Dim opens = From line In lines
Let tokens = line.Split({","c}, StringSplitOptions.RemoveEmptyEntries)
Where Date.TryParse(tokens(0), dt) AndAlso dt.Date = searchMonth AndAlso Double.TryParse(tokens(1), open)
If opens.Any() Then
open = Double.Parse(opens.First().tokens(1))
End If