Using A Variable As String 2 In InStr?

Aug 16, 2011

Is it possible to use a string for string 2? cuz whenever i tried it would return a 0 instead of the position of the string. however when i hard code the string into the code it works

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Search For New Line Position In A String Variable Using InStr

Aug 7, 2009

I have an application in VB.NET which gets string data from the database. This string has data which looks as below:

"This is the update: I have an issue with the application"

I need only part of the data, that comes after the new line i.e. "I have an issue with the application".

For this I am trying to search the position using InStr where the string has data in a new line. I tried many options, but they don't work.

I used "vbCrLf", Chr(13), "
", "
", "<br/>", Environment.NewLine, but none of them work.

How can I get the data I need?

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Assign The Value Of The Integer Returned From The InStr Method To A Variable

Jul 21, 2009

I want to assign the value of the integer returned from the InStr method to a variable. So, If TextBox2.Text = "The Apple Pie" And TextBox1.Text = "App", I want the integer returned, which in this case would be 5, put into a variable, lets say its called 'VarString'.
So VarString (would) = 5.

[Code]...

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Storing Multiple Words As One Variable To Use Instr() To See If Any Of It's Variable Words Are In The Text?

Jan 26, 2012

other than GML (Yoyogames.com Game Maker Language), I am new to the coding world. The only "major" project I have completed using VB is a computer calculator that exactly mimics the capabilities of Windows 7's calculator. Yesterday, I began a Chatbot program for my girlfriend. Lol. I have used the instr() function to answer most of the questions or answers which are typed into the textbox1. I find this extremely troublesome because when using the instr() function you cannot say instr(textbox1.

Public Class Form1
Dim fos As String = "Foster: "
Dim ash As String = "Ashley: "

[code].....

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.net - Using Instr When String Is Nothing

Jul 29, 2009

I have the following condition

If InStr("a,b,c", stringA) > 0 OrElse (InStr("y,z", stringB) > 0 AndAlso value = 0) Then
endif

COndition 1 is false so i check for condition 2 that is "(InStr("y,z", stringB) > 0 AndAlso value = 0) "

What puzzles me is that when stringB is nothing it still falls into the if condition and executes the code.

On first look it would seem that when stringB is nothing condition2 would fail and as a result would not fall into the if condition.

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Using InStr To Replace A Character From A String

Jan 21, 2011

What i am trying to do is take a character (which is going to be into a variable by user input) and search a string for this character, and save the positions of all character found and then change the same position of these characters in another string for the character that the user inputs. In other words, like a guess a word game. User tryes a guess, i search the string for that letter or number, if it's there replace it on the text box of the GUi, if not save it in another variable as a character that has been tried already, possibly an array.

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Search A String Variable And Place The Match Into Another String Variable In Visual Basic?

Nov 18, 2009

I'm looking for a way to search a string variable for two words and copy the text in between them into another variable. This needs to be done as many times as the match occurs.

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VS 2010 Merging An Integer Variable With A String Variable?

Jun 2, 2011

Say I have something like this

Dim Level1 as Integer = 83
Dim Goal as String
Goal = InputBox(" What level is your goal?")

[code].....

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Use Of MID And INSTR In .net?

Oct 23, 2009

i have a string that looks like this "Patient Name, Doc Name, Patient ID, something else"i want to extract each one of these and put it in a variable. such that var1 will equal "Patient Name" var2 will equal "Doc name" etc.. using instr and mid. what is the best way to do it?

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Difference Between Instr And Contains?

Dec 8, 2009

for determining whether a string of data contains certain text, which is more efficient? I have read elsewhere that there is somewhat of a consensus to avoid legacy functions, since they may or may not be available in future versions.However, trying to use the contains method (or indexof equivalent of Instr) is causing me problems, I think, because I am having trouble performing a case-insensitive search.

I am trying to be efficient and functional in my code. I am reading an INI file, and I have preloaded the contents of the file into a String variable, for 2 reasons. 1) If I can test if a certain section exists in the code, I can avoid attempting to read a section of empty data (the INI reader class I have chosen returns the value or an empty string for a given request). More importantly, 2) I have created a data field that is not INI compliant (at least not to the API?) as it is a data field that can contain an arbitrary (unlimited?) amount of data which is a hex-encoded representation of serialized byte data. I need to be able to determine if this value exists in the file and retrieve it using normal string manipulation, since the INI handler will not pass strings longer than 256Chr.

So, the problem I am having is getting "strFileContents.Contains("data=")" to return true in the case where the file contains "Data=". This could be data=, DATA=, DaTa=, etc.Instr has the option "CompareMethod.Text" which, I believe, does a case insensitive text search. What is the equivalent for "Contains"?

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Element Id's Are All Different / Instr

Mar 12, 2009

I am developing a twitter application. I can add, delete a user but now need to load the users follower page and then add the followers. the problem is the element id's are all different. I have tried the following,, loading the html into a text box and trying to read it using instr. but could not get the instr to parse the element id which looks something like this

[Code]....

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Combining A String And String Variable Into One Variable

Apr 4, 2009

I am trying to insert a string variable inside of two strings, and make a combined string. Public Sub Page_Load() Dim Id As String Id = Trim (Request.QueryString("Id")) End Sub Dim mp3text as string url... & Id & ".mp3" My goal is to make the mp3text variable have a string that is: url...(If Id is 7) It is for some reason not connecting up correctly. I checked what string it is outputting and this is what it is giving: url...It is missing the Id content.

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How To Use RegEx Expression With InSTR

Jan 13, 2011

I'm looking to do is scrub an html file for anything that resembles an IP address or any set of numbers for that matter. Normally what I would do is just using things like string.split to split out the html around areas that I want to search. What I am looking to do is be able to essentially search a large amount of characters for anything that matches this reg ex pattern.

Dim pattern As String = "^(d{1,2}|1dd|2[0-4]d|25[0-5]).(d{1,2}|1dd|2[0-4]d|25[0-5]).(d{1,2}|1dd|2[0-4]d|25[0-5]).(d{1,2}|1dd|2[0-4]d|25[0-5]):(d{1,4}|[0-5]dddd|[0-5]dddd|6[0-4]ddd|65[0-4]dd|655[0-2]d|6553[0-5])$"

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InStr' Is A Namespace And Cannot Be Used As An Expression?

Oct 24, 2010

'InStr' is a namespace and cannot be used as an expression.Dim FirstString As String = "me@me.com"

Dim SecondString As String = "@"Dim position As Integer position = InStr(FirstString, SecondString)
If position = 0 Then MsgBox("Not a Valid email address: There was No @ Sign") End If

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Use CType To Change An Object Variable "obj" To Custom Class That Reference Using A String Variable Like Obj.GetType.Name?

Feb 9, 2011

The code below works for the class that I hard coded "XCCustomers" in my RetrieveIDandName method where I use CType. However, I would like to be able to pass in various classes and property names to get the integer and string LIST returned. For example, in my code below, I would like to also pass in "XCEmployees" to my RetrieveIDandName method. I feel so close... I was hoping someone knew how to use CType where I can pass in the class name as a string variable.

Note, all the other examples I have seen and tried fail because we are using Option Strict On which disallows late binding. That is why I need to use CType.I also studied the "Activator.CreateInstance" code examples to try to get the class reference instance by string name but I was unable to get CType to work with that.When I use obj.GetType.Name or obj.GetType.FullName in place of the "XCCustomers" in CType(obj, XCCustomers)(i)I get the error "Type 'obj.GetType.Name' is not defined" or "Type 'obj.GetType.FullName' is not defined"

'+++++++++++++++++++++++++++++++
Imports DataLaasXC.Business
Imports DataLaasXC.Utilities

[code]....

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Use Of Mid(), Instr(), LBound(), UBound() Not Recommended?

Sep 28, 2009

I come from a C# background but am now working mostly with VB.Net. It seems to me that the above functions (and others - eg. UCase, LCase) etc. are carryovers from VB6 and before. Is the use of these functions frowned upon in VB.Net, or does it purely come down to personal preference?

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VS 2008 Search Combobox Using Instr?

Jan 30, 2010

I am creating a movie player which lists movie files from various folders/subfolders in a combobox (tsFileList). I'd like to be able to enter the movie name into a textbox (txtSearch), find that text in the combobox (using instr), then automatically select the found item.I'd like to use instr as some of the items in the combobox contains full file paths.

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VS 2010 Search Multiple With Instr

Nov 19, 2011

I created a code that allows me to search inside a RichTextBox...Then the code is as follows:[code]Now with the code that I use today, the MsgBox show me only the first, ie "<b> text1 </ b>" while others are not..

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Split Comma Separated String In Text File And Save Each String In Different Variable?

Dec 5, 2011

These is the content of my txt file which is saved in D drive in my pc abc,1,2,3..I tried the flowing but it didn't work:[code]I am getting error on this line.. data = line.Split(","c)...it says this line isn't in use anymore or something and that I rather use LineInput but thats asks for filenumber and i don't know what that is. I am sorry but I am a complete beginner. what else can I try? [code]ok that error is gone now but now if I want to add these values to a list box..how can i do that?

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Sorting - Sort List(of String()) Using A Variable Index Into String() As Key ?

May 30, 2012

I have a List(of String()). I have written a custom comparer (implements IComparer(of string)) to do an alphanumeric sort.Is there a way to sort the List using a given index to determine which position in the String() to sort by? In other words one time I might sort by Index = 0 and another time by Index = 3. The length of all String() in the list is the same.For reference this question is similar to Sort List<String[]> except I am using VB.net and that question is hardwired to Index=0.

EDIT from OP's comments:I started simple with the non custom comparer but I am getting an error: expression does not produce a value. Not sure what I am doing wrong.Here is the code:

Public Shared Function SortListOfStringArray(ByVal ListOfStringArray As List(Of String()), ByVal SortByIndex As Integer) As List(Of String())
Return ListOfStringArray.Sort(Function(x, y) x(SortByIndex).CompareTo(y(SortByIndex)))
End Function

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Manipulate Looping Serialport.readexisting And Instr?

Jun 27, 2011

i try readexisting and instr function as follow:

[code]...

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Instr Function Handle Multiple Strings To Find?

Aug 1, 2010

I'm using this for a single value to search for.

intPositionOfApartment = InStr(StrConv(pStringToParse, vbUpperCase), "APT") Is it possible to search for more then one value such as "APT", "UNIT" ?

If yes please show me an example of how it should be coded.

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VS 2008 Extracting Text From Comma Separated Data Using Mid And Instr

Jan 23, 2011

I'm brand new to visual basic and I've been given an exercise to extract data from a text file. I can get the lines of data to read in and can get the names out using the following code. How can I extract the department i.e. sales and finance also using the mid and instr functions? I also need to be able to list list the people by department using a dropdown combo box.

[Code]...

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When String Variable Was Empty String First One Returns 'nothing'

Oct 2, 2009

just found out that replace(string does not do the same as string.replace when my string variable was an empty str the first one returns "nothing" and the second returns an empty string (as expected).just sloppy coding anyhow, it was a function that was converted from classic asp and never rewritten properly. [code]

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Can't Load A String Into A String Variable?

Apr 12, 2009

I am using the MODI DLL (Microsoft Office Document Imaging) because it has an OCR engine. That's working fine, but I'm having trouble capturing the resulting text into my own string variable (weird, huh). Modi has the result stored in the following Modi string variable:

img.Layout.Text

I've tried three ways to capture this value, only one of them works (not the one that I need to work)

(1) Dim txt as string = img.Layout.Text 'fails

(2) MsgBox(img.Layout.Text) 'fails

(3) M = new Msg(img.Layout.Text) 'succeeds

Method 3 (the only one working) is a custom msgbox I built in VB.Net, and it accepts a regular .Net string variable. I need Method-1 to work. The error thrown is this:

"Attempted to read or write protected memory. This is often an indication that other memory is corrupt." I even tried it like this:

(1) Dim txt as string = img.Layout.Text.ToString.Trim

Here's the complete code:

Dim doc As New MODI.Document
doc.Create("C:VCR.tif")
Dim img As MODI.Image

[Code].....

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Replace All String In String Variable?

Apr 18, 2011

how can I replace all string in string variable like

dim str = "I am testing and testing and testing"
After replace with "and"
ReplaceAll(str,"and","or")

How can I replace all with case insentive not case sensative?

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Add A String To A Variable?

Sep 29, 2009

I am not sure how I would do this or if it is possible. I am looking to manipulate a variable.For example if myVariable = " Apples" I would like to take a user input and make it "Apples and Bananas" or whatever the user entry is.

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Set Tag To A String Variable?

Sep 12, 2011

I have a string variable, the variable could contain error or not. i want to know how can i set like a flag to the variable if the variable value has error or not. something like:

[Code]...

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String As Variable Name?

Nov 1, 2011

've done some searching but can't get my head around how I would use a string as a variable name. So something like....

Dim a as string = "something here"
Dim b as string = "a"
msgbox var[b]

[code].....

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String To Variable Name?

Sep 19, 2009

In my code I would like to put together a string and then pass that string as the name of a variable to a function. For instances, in the following code, if the value of a3 equals "row1" then mySub(object) uses the values in the variable row1. How do I do this?

Dim a1 As String
Dim a2 As String
Dim a3 As String

[Code].....

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