I have sockets receiving data from a barcode reader, the problem is the reader sends the string in chunks for whatever reason as opposed to sending the whole string, for example:
<00001>st6
comes as
<0
000
01
[Code]...
Is there any workaround to the input box sending an empty string when you press cancel? I have a web research function on my program:
Private Sub Button17_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button17.Click
Dim temp7 As String = InputBox("Enter the album name.")
[Code].....
Basically, it provides an input box, you type in the album you want information on, and it will take you to a web page to give you information.
But when you press cancel, it does all of that anyway. It just takes an empty string...
Is there a way I can have the user press cancel to the input box and simply nothing happens? As far as I can tell, it ignores the "If windows.forms.dialogresult.ok." line...
How could I make it so my program sends a string to a server without FTP or MySQL.
I know it's possible, and I'm thinking about PHP.. Not sure how..
i want to type in a name to a textbox like type in "Ben" to textbox1. Then i want to click a button and have correlating numbers, say 126 show up in the textbox2. Im using a function to do this, how would i write a function that takes the string in textbox1, goes through each letter and sends back a numerical value for the letter through the function. I know how to do this with text files with stream reader, but don't know how to do this with strings.
View 5 RepliesI work for a printshop that screenprints customized hats ,tees and a host of other stuff for a variety of small businesses. Being that we are a small business as well, we can't afford to mass ship catalogs to our clients, so I decided to build a catalog application/business card that can be emailed to them. The app is rep. specific, and after choosing which options suit them best using text fields and combo boxes, upon clicking submit, the customers' info is emailed to the rep.
To do this, I am trying to get a popup window that displays an email form with the 'mailto' address previously set, so it can't be altered and the info from the previous screen to be pasted in the body of the email. Upon clicking the confirm button, the mail is sent and the window is closed. I already have the code to copy the info from the textbox and combobox entries and paste it into the textbox in the next form, but getting the email form to be functional is appearing to be quite a feet.
I am using Nektra's Deviare to hook winsock's send method calls. My ideia is to learn to also send messages through the same socket than the original application. So what I'm doing is when i detect the first call to send message, I save the socket id(the first argument of the send function), so I can use it later.
So here is my code:
uint socket = 0;
[DllImport("Ws2_32.dll")]
private static extern int send(uint socket, string buf, int len, int flags);
[Code].....
This last messagebox is poping up always -1. Why should be it?
edit: calling WSAGetLastError() returns 2. Which I do not know what it means, as it doesn't seem to appear on msdn.
I am working on an application that is going to read a weight from a scale. The people who sold us the scale said that I can send a string to the scale over FTP and the response I will get is the weight. I haven't done much with ftp and have been searching for weeks. Can anyone point me in the right direction? The steps are... Create a TCP/IP connection to the ip address, port 1701 If the connection is succesful then I'll get 53 Ready for user as the response I can then send the username/password to the machine (sent as a string...) Read the response, which should be 12 Access OK I then need to transmit 'r wt0101' to read the weight. The response will have the weight. They've said this is done through FTP but maybe that's not the case? I don't understand why it would be FTP but that's what the technical documents say. Is there a class I can use that sends string commands over a tcp/ip connection?
View 8 RepliesMy tcp client has made a connection to the server script! Now that it has connected, how can it send a simple string? I do not know what any of the overloads for the .Client.Send method even mean, or how to use them. I already have a system set up on the server side to parse the string when it is received on the server side, but I have no idea how to send a simple string to it.
View 2 RepliesAlthough there are already a few resources online that address this rough topic, I still haven't found an answer that works for me.I desire to have full communication between my VB.net process and my C++ process. I would like to be able to send a string to and from the C++ process, but for the time being I need to achieve:
Sending a string to the C++ process, and handling it.This creates a few points that I am uncertain on, but I'll try to keep this as simple as possible...using the following function declaration in VB;[code]....
And finally, I used the IPC example here to send the message. This example sends the message using C#, but the concept was all I needed (not to mention that it's a walk in the park to convert such code to VB). Note that in my VB implementation, I didn't need to terminate the string with a null character.
this is my vb.net code -
in the subroutine i have -
Private Sub xxx()
[code].....
I didn't saw much samples about tcp file share. They look similar to what I am using to send string. My question is : Does these codes work with any kind of files? And May I have some hints about how to do it?
View 1 RepliesCan I do anything more or less with IDictionary? How do these two collections differ?
View 5 RepliesI have a Client/ server application where the Server is in java and Client is in Vb.net.When i send large string from client to server am not receiving complete text.code attached below.
client-- VB.net-
Try
Dim clientSocket As New System.Net.Sockets.TcpClient()
[code].....
Quote:
Dim conReader As New StreamReader(con.GetStream)
Dim conCont As String = conReader.ReadLine
It just reads the first line of the server I'm trying to connect to, I want to make it read all the messages that the server is sending. btw, con is: Dim con As New TcpClient
my code is :
[Code]...
The error is Value of type '1-dimensional array of string' cannot be converted to 'String'.
I want the Function to accept List(Of String), Array & String and similarly return List(Of String), Array & String respectively. The Function simply adds a string (month) to the input collection. I just want to use it for string, array and list with needing to think of conversions.
[Code]...
Basically I have a webresponse stream:dim lol as string = readstream.tostring there is a lot of information within the string but only one link starting with http: located near the end of the string - however there is no constant character point where I can start... (i.e. 38)
I want to extract the link from the string i.e. dog cat plane car [URL]..that is approximately how it looks above - words and url substituted I want to just extract [URL]..I had an idea of parsing the string from http: to the end Then after that splitting the string up again to remove the }], however it does not return anything
I got an app, which receives data via a R232 port, convert it to a string and on the other side I got a database, where the strings are saved. How can I find a way to compare the string with all strings in one database column and get back the another stringform the same row in this database. I never programmed a database
View 1 RepliesI have buttons generated through code (dynamically). I have to associate an event (the same) to them. I use AddHandler button.click, AddressOf mysub.The issue is that mysub gets a string (mysub(string)), but AddressOf doesn't accept a parameter inside the routine. How can I do this? Using also an alternative to AddressOf.
EDIT:
Public Class Form1
...
Private Sub mysub(ByVal sender As Object, ByVal e As System.EventArgs, ByVal str As String)[code]......
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?
View 1 RepliesWhat is the best way to pass the four (4) parameters after the applicationName to the application to be launched?
Process.Start ("C:\MyApp.exe",
"CommChannel1",
"DeviceName",
"Language",
"UserName")
I have the following web method:
<WebMethod()> _
<ScriptMethod(ResponseFormat:=ResponseFormat.Json, UseHttpGet:=True, XmlSerializeString:=True)> _
[Code].....
I wanted to use HttpGet here so that the result can be cached.
I tried every variation of calling this, but no luck. Is this possible with GET?
I have a field that I display via: String.Format({0:c},amount) This produces the string "$28.28" However, when I try to convert back to a decimal amount, I get an incorrect format exception: amount = Decimal.Parse(amount.Text, NumberStyles.Currency) I also tried it with NumberStyles.AllowCurrencySymbol with the same results. I verified that the value in amount.Text is "$28.28". Am I missing something? Shouldn't these two operations use the same currency symbol and formats?
View 2 RepliesI Ported this code from a code project article in c# called Nscript
heres the code
Base App
Imports System
Imports System.IO
Imports System.Resources
[code]....
Okay Now I only get two errors (I dont know how to solve them)
Error3Class 'BaseApp' must implement 'Sub OnCompilerError(errors() As CompilerError)' for interface 'IScriptManagerCallback'.
And
Error4Class 'ScriptManager' must implement 'Sub CompileAndExecuteFile(file As String, args() As String, callback As IScriptManagerCallback)' for interface 'IScriptManager'.
But What I would also Like to know (as well as how to fix the errors), is would the code work?
I need a regular expression that can validate that a string is an alphanumeric comma delimited string.
Examples:
123, 4A67, GGG, 767 would be valid.
12333, 78787&*, GH778 would be invalid
fghkjhfdg8797< would be invalid
This is what I have so far, but isn't quite right: ^(?=.*[a-zA-Z0-9][,]).*$
Problem: Your task is to take input from the user in string and give the following options to the user in a menu.
1- Find a String
2- Create sub-string
3- Erase a portion of a sting
4- Replace a word in the string
5- Count number of words and characters in the string without spaces.
6- Capitalize first character of each new sentence and convert the rest
of the characters to lower case.
7- Sort all the words in alphabetical order. (Use Bubble sort algorithm to perform sorting).
To perform all the above mentioned tasks you can only use pointers. Create a function to perform every task.
So strings are reference types right? My understanding is a reference to the string in the heap is passed even when you pass the string ByVal to a method.
String myTestValue = "NotModified";
TestMethod(myTestValue);
System.Diagnostics.Debug.Write(myTestValue); /* myTestValue = "NotModified" WTF? *[code].....
And what is going on under the hood? I would have bet my life that the value would have changed....
Im working on a program and I get this "Value of type '1-dimensional array of String' cannot be converted to 'String'." heres the code that gets this error:
[Code]...
I don't understand why the line final.join etc pops up with these errors!! Value of type 'String' cannot be converted to '1-dimensional array of String' And Access of shared member, constant member, enum member or nested type through an instance; qualifying expression will not be evaluated This is my code.
[Code]...
when i transfer the bytes sent by the client program to a string the string length is affected.when i put the bytes sent by the client program to a message box. it returns the corrrect text. but when i check the length it will return 8192 or higher. but the actual size is just 5.
My Code
Dim tcpClient As TcpClient = tcpListener.AcceptTcpClient()
RichTextBox1.Text = RichTextBox1.Text & vbNewLine & "Connection accepted."
' Get the stream[code]....