Ow To 'un Block' Reading Of Stderr Strings?
Mar 26, 2009
Am writing code using VB.net 2005 and am attempting to launch a 3rd party console application and capture stdout and stderr strings. Am able to do this but I find that if I want to capture both stdout and stderr strings I have to wait for the process to terminate before I can retrieve any output data. If I remove the stderr read I can capture the stdout data as its being emitted. Thus it appears that the stderr read "blocks" reading of stdout.[code]Does anyone have any suggestions on how to "un block" the reading of the stderr strings?
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Nov 3, 2010
I have a block of text in a file: It is displaying as one string but the file really is set as this format:
Charges:
784.03-2560 BATTERY-TOUCH OR STRIKE
Original Bond: $0.00Current Bond: $0.00
* DOMESTIC
Original Bond: $0.00Current Bond: $0.00
Name:
I want to extract what is between Charges: and Name: to end up with just 784.03-2560 BATTERY-TOUCH OR STRIKE Original Bond: $0.00Current Bond: $0.00 * DOMESTIC Original Bond: $0.00Current Bond: $0.00 returned.
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Jul 19, 2010
how to read a string in pieces.
Let's say the string is 800 characters long. I want to read 100 of them each time. How do I accomplish this?
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Jul 30, 2010
I am fairly new to vb.net but was programming a long ime with vb6 I have a binary file that is a mixture of numbers (integers and doubles) and strings, such as "Programming with VB". I read the numbers using the BinaryStreamReader.ReadInt32 and BinaryStreamReader.ReadDouble, which are no problem
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Jun 5, 2010
im trying to read "calculator" from calc.exe, now i found the mem adress where the value resides but i have a few problems
1) how many bytes should i read? im not just talking about calculator string but potentially any length string, i get different results with 4/8 bytes but same from 8 - 32 bytes
2) when i read i get a long value 27866486557179971 but how to convert that into a string
EDIT: ok by staring at the return value long enough i discovered that when i convert it to hex it spells "calc" backwards, same for all other strings, i could build a working converter based on that knowledge but now what bugs me is where is "ulator" or the rest of the string, the most i can get is always 4 letters
EDIT2: oh nm that, by moving memory adress a step further i get the next letter along with 3 previous ones and still backwards but i can work with that
ok so now next step would be making a search function for which i need to find out the range of memory to scan, anybody know how to do that?
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Apr 29, 2011
what is the easiest way to step through a string in this manner... I want to have my program look for one keyword and then another.. in otherwords it needs to find "hello56" and THEN find the word "bob" there are so many places the word "bob" is but I need to locate the "bob" thats after "hello56" Hope this example is clear.
[Code]...
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Jan 6, 2012
I can retreive all items in my notepad but when I am adding them up in my listbox, and trying to print them in the console. I can only display two strings. I don't know why. My string is a combination of a name, space & score. ex: "luke 300". That is the pattern of all strings per line in my text file. I am separating the name and the score using space as the indicator. When ever a space is found, string before and after the space is retrieved and added to the listbox
Here is my
scorelist = New ArrayList
reader1 = My.Computer.FileSystem.OpenTextFileReader(My.Application.Info.DirectoryPath & "scores.txt")
[Code].....
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Sep 2, 2010
Any example code for reading and writing strings to and from a ControlLogix Processor?
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Mar 11, 2010
All I am doing is reading each txt file I find in a directory and finding certain strings in the text then counting how many I find in each file and then once each file has its separate counts it send it to a sql database. I have most of it done, but I cant seem to get the count to separate each file so my problem now is that it counts the first file but when it counts the next file it adds to the first file and so on through all the files
Imports System
Imports System.Collections.Generic
Imports System.ComponentModel
Imports System.Data
Imports System.Drawing
[Code] .....
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Jan 4, 2011
I'm trying to read the XML I generated. Here's my writing code:
'XML EXPORTATION BEGIN
'Create the file
Dim myXmlTextWriter As XmlTextWriter = New XmlTextWriter("C:Simple TimerProfiles" + timer_name + ".xml", System.Text.Encoding.UTF8)
'Choose Formatting
myXmlTextWriter.Formatting = System.Xml.Formatting.Indented
[Code] .....
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Feb 1, 2011
I'm trying to read back a string that I wrote into a binary file, but it's giving me problems and I don't know what's going on. I open and read my file using the code below:
ifstream input([filePath UTF8String], ios::in | ios::binary);
int numStringBytes;
input.read((char*)&numStringBytes, 4);
[Code]....
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Sep 24, 2010
I'm trying to read back a string that I wrote into a binary file, but it's giving me problems and I don't know what's going on. I open and read my file using the code below:
ifstream input([filePath UTF8String], ios::in | ios::binary);
int numStringBytes;
input.read((char*)&numStringBytes, 4);
[code]....
There is a lot more to the file reading code, but it's proprietary and this is the part that keeps crashing. It runs fine loading the first two files, but when I try to open a third file, it crashes with EXC_BAD_ACCESS at the input.read((char*)names, numStringBytes); line. I don't see any reason that this should crash. I'm writing the binary files in VB.NET using the below code:
Dim myFS As New FileStream(savePath, FileMode.Create)
Dim encoding As New System.Text.UTF8Encoding()
Dim stringBytes() As Byte = encoding.GetBytes("++string")
[code]....
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Oct 16, 2009
Say I have a List(Of Tag) with Tag being an object. One member of Tag, Tag.Description, is a string, and I want to make a comma-separated concatenation of the Description members.Is there an easier way to do this than to read the Description members into a List(Of String) and then use the Join function?
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Aug 13, 2009
I am working on a UDP Client/Server, and currently i have them sending back and forth strings, which i convert to bytes, and then open the bytes to read. I want to now send an Object instead of those strings, which includes multiple unsigned integers and strings.
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Aug 5, 2010
I have a list of strings. For each string in that list, I want to prepend another string. I wrote a method to do it, but I was wondering if there was something already in .NET I could use to do this. It seems like something that could be built in, but I was not able to find anything.
Here is the method I wrote:
Private Function PrependToAllInList(ByRef inputList As List(Of String), ByRef prependString As String) As List(Of String)
Dim returnList As List(Of String) = New List(Of String)
For Each inputString As String In inputList
returnList.Add(String.Format("{0}{1}", prependString, inputString))
[code].....
It works, but I would rather use built in functions whenever possible.
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Oct 16, 2009
I'm migrating from VB6 to VB.NET, in hence my questions below:
I have to write a function that returns array of strings.
How can I initiate it to empty array? I need it since I have to check if it's empty array after it returns from this function.
Is list of arrays better for this purpose? If I use a list - Is it empty when it firstly defined? How can I check it it's empty?
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Aug 15, 2011
I have been looking for examples to find the string between two strings. This top one works fine;
Public Sub ReadData(ByRef keywordStart As String, ByRef keywordEnd As String, ByVal filename As String)
Using reader = New StreamReader(filename)
[Code].....
Now the first one is fine - Ext_Volume is result of the string between the strings <Volume> and </Volume>. <Volume> and </Volume> are unique so this is straight forward.
However the second one - "^FDExp:" is unique, but "^FS" is not unique. There are occurances of "^FS" before and after "^FDExp:".
How do I get the string to search AFTER the occurrence, not before etc?
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Jun 24, 2011
Dim str As String
Dim str2 As Array
str = "blabla duhduh"
str2 = str.Split(" ")
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Apr 6, 2012
Say the string is something like
bla bla bla bla (cat) bladfdskdfd dsgdsdksf (dog)
dfdshfdskdskfsdfkhsdf sdkfhdsfkdf (kathy) fdsfhdskfhdsfkd (doggy)
I want a generic.list (of string) containing
cat
dog
kathy
doggy
How to do that with regular expression in vb.net
Later I want to do something more complicated like getting all strings between "url":" and ", from this strings
[Code].....
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Jan 8, 2012
Is there an easy way to find a certain string within a string and then return the strings that you find as an array?I have written this:
Public Function FindStrings(ByVal strSourceString As String, ByVal strStartString As String, ByVal strEndString As String) As String()
Dim StringStartposition As Integer
Dim StringEndPosition As Integer
Dim Currentposition As Integer = 1
[Code]...
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Jan 16, 2011
I have this string called time. It's value is in this format: HH:MM:SS The numbers change, but the format stays the same. I want to separtate the code into 3 strings Hour, Minutes, Seconds.
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May 14, 2009
I have a DataGridView that has some columns with dates. It binds to an in-memory Datatable which gets loaded from an string array of data passed back from the backend Some of the rows returned have nulls for the date columns. Solution 1: If I define the Date column in the DataTable as "string" I can easily convert those nulls to empty strings and display it in the grid as empty strings (desired results). However, if the user clicks on the date column header to sort by date, it doesn't order the rows as you want. You get a purely string sort order. Not acceptable
[Code]...
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Jan 2, 2010
I am working on a project in VB 2008 and need it to do this:Read first line from text file (using Openfile)Enter line into textbox on formDo some other codeThen Read second linefrom text fileEnter line into same text boxand loop until we have gone through text fileI am not sure how to read line by line from text file then enter it in textbox. I can open the Openfile and get the filename and everything, but I just am not sure how to read from it or enter that line into the textbox.Here is what I have, its not much but its a start:
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim FileReader As StreamReader
[code]....
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Jun 3, 2011
i have problem in vb.net window base application.i want to block TAB key from the keyboard.PI code or any useful hint to do that.
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Jul 6, 2009
I assume i have more number of If and less End If i cant find it where its going wrong?
______this is the code below _________________________________
Private Sub CommandButton2_Click()
Dim app As Object
Dim Slide As Object
Dim ppApp As Object
[code]....
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Nov 26, 2009
im doing a login i have finish it but you can close it by using alt+f4 so i need to block the alt key im using vb 2008
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Jul 20, 2011
How can i add this to Me.Controls within the With block. [code]
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Nov 7, 2006
I am looking for a way to block registry changes unless I choose to allow them to be made. So basically if an application tries to make a change my program would display a dialog with information of the change and I can either click Allow Change or Disallow Change.
Only thing is I am not sure how I go about stopping a registry change before it happens.
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Jun 11, 2009
it is possible to block the window key using vb.net...
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Jul 4, 2011
in vb6 to block value in text box i using :
text1.setfocus
sendkeys "+{home}"
How if i use in vbnet 2005 ?
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