Parsing A Textbox String And Returning Substrings To Multiple Textboxes
Nov 17, 2010
i've done some basic parsing with text files before.
Scenario is i have 4 textboxes String (which contains the string i'm wanting to parse) sub1, sub2, and sub3. so the string is ex. 500000-1-2
- is the char that is the seperator
so the aim here is to get
500000 into sub1
1 into sub2
2 into sub3
the real string i'm wanting to parse is much more complex, but i'm keeping it simple here for a jumping off point so i can figure the rest out.
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Jun 16, 2010
I found this function that replaces multiple substrings within a string on the internet but it gives an error on one of the parameters.It doesn't like this one:
ByVal ParamArray FindChars()) As String
Can you look at the code and correct the error since I don't yet know about explicitly typed parameters?
Emad
Public Function ReplaceMultiple(ByVal OrigString As String, _
ByVal ReplaceString As String, ByVal ParamArray FindChars()) _[code]......
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Jul 16, 2010
I need to find all strings in given text file which would look like:
Hi thisisme Bye Bye
Hi thisisyou Bye Bye
Hi someone Bye Bye
so, i need the result to be:
thisisme
thisisyou
someone
also, there is all sorts of other text before this and after this (in source text file)now, i have this, which doesnt work quite well:
Public Function midReturn(ByVal first As String, ByVal last As String, ByVal total As String) As String
If last.Length < 1 Then
midReturn = total.Substring(total.IndexOf(first))
[code]....
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May 30, 2011
so say I have a string called Cmd, and the text inside the string is Restarting server in ()..., what I was wondering was how I would go about inserting different substrings like 3, 2 and 1 in between the two parentheses? I know about Cmd.Insert() but I don't know how I would make it go between the two parentheses.
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Dec 17, 2009
Alright I am taking an XML file which has a bunch of tags and I'm trying to eliminate everything but whats inbetween certian tags for instance the input maybe
- <w:p w:rsidR="00254C13" w:rsidRDefault="001173CF" w:rsidP="001173CF">
- <w:pPr>
- <w:tabs>
[Code].....
unless they say they are safe. Average consumer can protect themselves>not knowledgeable enough to always protect selves</w:t> I want to go through and remove those end tags but when i used the remove string it didn't let me specify a string to remove it the two arguments were where to start and how long. how do i specify what to remove?
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Aug 9, 2011
I'm trying to split a string into 2 subs. The first contains the first 236 (0 to 235) chars and the second one from 237 to the end of the string.
firststr = str.Substring(0, 235)
secondstr = str.Substring(235, strLength) 'strLength is the total length of the string
[code]....
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Mar 28, 2012
I am programming in VB 2010 and have a question. I have some code that currently only applies to one text box. As you will see, I have sub setup to handle multiple textbox events. My question being, Is there a way to take this code and apply it to all textboxes that are being handled?
VBCode:
Private Sub TextBoxes_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles fnameTxBx.TextChanged, _
lnameTxBx.TextChanged, streetTxBx.TextChanged, cityTxBx.TextChanged
Dim theText As String = fnameTxBx.Text
[code]....
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Mar 5, 2009
I would like to be able to parse vb.net code files, so I can examine the collection of Subs, Functions (and their contents, including comments), private variables, etc. I can be open the actual source code files. So for example, if I have:
[Code]....
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Sep 23, 2009
I am trying to write a program that separates a string into 2 substrings.Lets say I need the entire string to be 15 letters long.I need to break the string up so that the program reads it as two words.Lets say that the first word has to be 8 letters long and the second word has to be 6 letters long.So if I type it like this: Computer Screen
That should be 15 letters including the space between the two words.I need the program to read the string to make sure that the entire string is 15 letters long and if its 15 letter long continue, but if it is not 15 letters long stop and give me an error.If is 15 letter long next the program needs to read and make sure that the first word is 8 letters long and if it is print out the first word and continue but if not it needs to give me error.
Lastly if the first word is 8 letters long it needs to read and make sure that the second word is 6 letters long and if it is print out the second word and then continue, but if it is not give me error.The problem I'm having how to declare the first and second word and substrings, can someone please help me understand how substrings works and declare them after I have declared a string.
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Jan 10, 2010
Basically I have an application that has 2 textboxes and a button. What I am trying to do is when the button is clicked, it takes an entered string from box one (which is validated to only accept numbers) adds 235 to it then converts it to hex and finally reverse the string and sets textbox two equal to that value. Note that the final string has to be eight digits so the string may needed to be padded with zeros before the string is reversed. With that said how could I go about doing this? Also I do plan to add 2 more textboxes and another button to undo this process but I am thinking if I can figure out do it one way writing the code to undo the process shouldn't be too hard.
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Mar 16, 2011
I'm creating a vb.net winforms application that will take in user given strings, parse them, and print out labels with variable information. The given string will be used in all the labels, but the variable part of the string will change with each label.
My question is: is it better to parse the strings one time, then store those values in arrays, or to parse the string each time a label is printed? Which will perform better? Which is better practice? What is the proper way to test something like this?
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Aug 2, 2010
So in my form i have the user input a bunch of data that gets written to a listbox. Like so Pre_Study_Listbox.Items.Add("Team Members are: "). I then save the listbox to a .txt file and they can later load the .txt file back to the listbox. All this works great. But now i need to reverse the order of textbox to listbox and put the information back into the textbox fields from the listbox. So. The parsing character is ":" I need to read each line of the listbox and at the ":" take the rest in put it to the text box. I am not familiar with the parsing command
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Oct 9, 2011
Just what the title says. I have a listbox with varied entries, all in one format:name, email, phone, age
When an entry is selected, and when a certain button is clicked, I require the entry to be removed from the listbox and the four categories from the entry must each go into their assigned textboxes.
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Apr 23, 2010
I would like to display the multiple records in multiple textboxes Following is my tables and data:
tblJan with these data:
col id
1
2
3
col January
10
20
30
now i want to display the value 10 in one textbox and the value 20 in another textbox and so with the value 30 in another textbox..
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Mar 13, 2012
Okay this is the simple thing I'm trying to accomplish. I can get richtextbox1 to add to listbox 1. but i cant get both to add. the compare works fine. I'm stumped.
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Mar 17, 2009
I am working on a project I would like to use a function in a class I created to return multiple values in order to populate a listbox. I wanted to use a do until loop to achieve this. I will just post a simplified example of what I am doing :
Public Function Listboxfiller
Dim astring As String = "This is a string"
Dim Counter as integer = 0
Do until Counter = 5
return astring
Counter += 1
Loop
Then on the form I would do something like :
lstListbox.Items.Add(Myclass.Listboxfiller)
What happens right now is that the listbox only gets the first value, when I ran through in debug mode I found the loop only runs once, even though it should go multiple times.
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Jan 14, 2009
I am struggling here with introducing web services into a site I am currently working on. The background is as follows.
- I have a page switchboard.vb which will recieves incoming xml requests.
- I parse these xml requests extracting its values, then setting them equal to the relevant global variables in switchboard.vb.
- One of these variables will determine a 'requestType'. Based on this requestType I want the page to call particular web services that I will add.
- These web services will then validate the user calling has permissions to access and execute it.
- The switchboard.vb page will then generate an xml respose which will post to the client.
Here is a summary of the process
getXML()
parseXML()
determineRequestType()
executeRequest()
rebuildXML()
postXML()
The ways I can see to do this are:
1. Pass the variables into the required Function allowing it to pass back a pre formatted xml string.
Pro: Simple
Con: It is not really using the web service as it should be.
2. Pass the variables into the required Function as 'ByRef' values hense changing the original value on switchboard.vb
Pro: allows me to format the outgoing xml on switchboard.vb and gives me more functionality with more individual variables as opposed to one string being passed back.
Con: Is this taking advantage of a web service? When I tried this the web service form didnt give options to input test data. Possibly because I am using ByRef?
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Apr 23, 2012
I have a table with several rows of data that I need to return to the controller. In my view, I initially load the table by selection of a time period and clicking a button. The table loads all my relevant records but one of my table cells contains a dropdown list. So I should be able make a selection in the dropdown click "update" and my controller saves the changes.
So everything works until I try and save. The model that is sent to the controller is completely null. The list property I have tied to the table cells returns to the controller null.
[Code]...
NOTE: This is written in VB.NET but C# help is welcome. I am familiar with both languages in MVC.
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Jan 19, 2010
I have an encrypted SQL Server stored proc that I run with (or the vb .net equivalent code of):[code]this returns 2 datasets and the output parameters for the results, the datasets are made up of various table joins etc, one holds the header record and one the detail records.I need to get the 2 datasets into a structure in VB .net (e.g. linq, sqldatareader, typed datasets) so that I can code with them, I don't know what tables any of this comes from and there are alot of them Whooopeee...I came close using Linq to SQL and IMultipleResults but got frustrated when I had to recode it every time I made a change to the designer file.
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May 7, 2012
like an Interop user control (VB.NET) to return and to accept multiple values from a get/set call. I assumed a user defined type (UDT), would be the correct way but I keep getting a "Variable uses an Automation type not supported in Visual Basic¯ from the VB6 compile. How is passing multiple values between an interop control and the VB6 application done?VB.NET (Interop) code, a control with a .NET ListView
Structure Employee
Dim Firstname As String
Dim Lastname As String
[code].....
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Apr 1, 2010
I have an active directory search function:
Function GetAdInfo(ByVal ADDN As String, ByVal ADCommonName As String, ByVal ADGivenName As String, ByVal ADStaffNum As String, ByVal ADEmail As String, ByVal ADDescription As String, ByVal ADTelephone As String, ByVal ADOffice As String, ByVal ADEmployeeID As String) As
[code].....
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Feb 21, 2010
I am using this vb.net code file to call a procedure to get dates (among other things). When I execute this procedure in SQL 2005 Server Management Studio, I get about 10 columns. However when I execute this code, the dataset seems to only have one index value, maybe I am misunderstanding something. When I change this
ds.Tables(0).Rows.Count.ToString
to
ds.Tables(1).Rows.Count.ToString <---changing the index value to 1
(or higher)
I get no information. So my question is;
Does the DataSet contain the other columns, only not indexed like an array? What I want to do is choose which of the columns to filter out and turn the rest into JSON formatted strings.
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Sep 6, 2011
show me how to return multiple values from a function? I have my function in a seperate file within App_Code and here it is:Public Function GetQuoteStatus(ByVal QuoteID As String) As String
Dim quoteStatus As String
Dim con As New SqlConnection
Dim cmd As New SqlCommand
Try
con.ConnectionString = ConfigurationManager.AppSettings("quotingSystemConnectionString")
con.Open()
[Code]...
However this is all good and well for one returned value but what If I wanted to return multiple values.How do I access them?
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Apr 30, 2009
What is the simplest way to return the second part of an email address? eg: yx = somefunction(y); how do I get x to retur
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Oct 28, 2009
I am having trouble figuring out how to parse a string with delimiters. I have a text box which the user inputs data or what ever. I need to figure out how to parse the string and display it in a listbox, each word in a single line. Here is what I have so far, my book doesnt explain parsing very well and I'm stuck
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Nov 15, 2011
I am new to VB.NET and xml and I am trying to parse the xml file of format mentioned below and display it using textbox in VB.NET. But I am not able to parse it. Code snippet to parse the xml shown below :
<?xml version="1.0" encoding="utf-8" standalone="yes"?>
<Table>
<Product>
<Product_id value="1"/>
<Product_name value="Product 1"/> .....
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Jan 13, 2009
Have been struggling with parsing XML as there seems so many options. My XML string is formatted as follows
<mysite>
<request>
<type>login</apiType
[code]......
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Jun 28, 2010
im doing a simple calculatro and was happy with the way i done things .. a ew member variables and a properties:
Private MVAR_Number1 As Decimal
Private MVAR_Number2 As Decimal
Private MVAR_Operator As Char[code].....
he want to add this:
Dim Operators() As Char = ("+", "-", "*", "/")
Dim OpPos as Decimal
OpPos = Expr.IndexOfAny(Operators)[code].....
Just drives me mad how complex this is all getting for something so simple, fell like giving it all up .
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Jul 13, 2010
I have a very long string. I need to parse this string so I can get information out of it. I know what each segment starts with and ends with. The length of the information will vary. I don't know what the easiest way of parsing this string.
Example data will be
ST*997*232898~AK1*HC*8888*~NM1*2*TESTING........
So i will want to get everything from ST to AK1then AK1 to NM1 and so on and so on.
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May 28, 2009
I have a string array (strValues()) that holds a large quantity of character data. I need to parse out characters that follow "*PN" and end with "*". I then need to store this data in a datatable so that I can loop through it afterwards and pull out the unique records to be added to an existing dataset. I've been trying to use basic "IndexOf" to get started but it tells me "Overload resolution failed because no accessible 'IndexOf' accepts this number of arguments". Is there a way to accomplish what I'm trying to do?Sample data: MS50*CF3224205*PNineed/thisdata*SD07JAN10*ED21JAN10
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