I found this online: The following source code concatenate two strings.
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'The Copy method copies contents of a string to another. The Copy method takes a string as input and returns another string with the same contents as the input string. For example, the following code copies str1 to strRes.
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The following is ment to generate the path to a text file and stream the data found there into an array.
Dim y1 As String
Dim y2 As String
Dim y3 As String
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I am trying to the copy the value from string to char array using String.CopyTo() method.
Here's my code
Dim strString As String = "Hello World!"
Dim strCopy(12) As Char
strString.CopyTo(0, strCopy, 0, 12)
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Edit : I get the this error at runtime.ArgumentOutOfRangeException Index and count must refer to a location within the string. Parameter name: sourceIndex
Can I do anything more or less with IDictionary? How do these two collections differ?
View 5 Repliesmy code is :
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The error is Value of type '1-dimensional array of string' cannot be converted to 'String'.
I have a listbox and a button event that responds to a selection. Is there a way to get the whole item row (including subitems) and copy it into a string? For example: engagement = ListView1.SelectedItems(0).Text that code does exactly what I want but only gets the main item and none of the subitems in my row. 'My Items code
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I am in a rather silly situation...suppose I have a text box in which I enter a line of text/characters/numbers...how would I be able to display the last two or first two (or may be middle two?) characters into another text box.
Example: I write "Hello World!" in the first text box and the program should display the first two characters from that text box, i.e. "he".
I have a StringArray that is filled with line of text and I need to take each array of strings and convert them to byte. How
Dim splitText() As String = TextRead.Split(Chr(13))
Dim byteArray() as string = Byte.Parse(splitText(0))
once I can get one element of the string array to convert to Byte I will put a loop around it for each position in the string array but it says the string format is not correct for the byte.parser.
What will be the fastest / most efficient way to copy the contents of a byte array into a string?
View 3 RepliesI was wondering how you can copy information (from a webpage, for example) and store it in a string?Also, how would I take only one word of the string if there are spaces between words and I will always be removing the word with the same location in the string (for example, the last word in string).
View 1 RepliesI am able to add all the strings on the list box but I need to copy the string before the delimeter comma. this is the text
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So I have a string that I need to search through for certain strings. If they exist, then copy that string to a text box. There has to be an easier way to do this then what I have below
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Ive got a few strings stored inside a string array, and i need to copy each string element into the integer variable on each iteration.how i would convert it? tried
CInt(stringArr(lc))
but got errors?
what is the connection string when the database copy paste in debug folder?I have a code connection string it's work but when i try to other computer cannot connect in to the database.
Try
If sqlconn.State = ConnectionState.Open Then
sqlconn.Close()
End If
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How do you copy a bi dimensional array in a clipboard without converting the content in a string builder?
View 6 RepliesI have a text box called TxtSearch on my form. The value entered should always be numeric before the search can be done if its any other data type the following Message box is give - Only a numeric value is allowed in this field", MsgBoxStyle.Information, "GCPM.. (Code shown below)
Private Sub TxtSearch_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TxtSearch.KeyPress
If Char.IsDigit(e.KeyChar) = False And Char.IsControl(e.KeyChar) = False Then[code].....
Now, when you copy and paste a String value on the textbox - TxtSearch the KeyPress doesn't work. The TxtSearch doesn't prompt the message and when you click the Search Button the application crashes - dsiplaying an error converting data type varchar to numeric.. What I want to do is if someone uses the copy and paste tool to enter the value in the textbox- TXTSearch and there is a datatype not numeric the message prompt is called ..
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.
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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 have a large file that I need to copy each lines contents and place between the quotes in sw.WriteLin (" ").
Sample text file
#
# Security Options
#
DisableMemoryCardInsert True
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I have a listbox which on form load generates correctly from a text file like so in a listbox...ex"John Doe, 1""Bob Brown,2"I now would like to search the listbox if it contains either a "1" or a "2" which is does in this case and copy the item to another listbox. The 1 and 2 indicate positions I have a position listbox for each position. So 3 listbos, first one contains the names on form load, 2 other empty listboxes one for position 1 other for position 2...I have tried the following
If xReservationListBox.SelectedIndex = xReservationListBox.FindString("1") Then
'MessageBox.Show("Found It")
xSpot1ListBox.Items.Add(xReservationListBox.Items(0))
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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)> _
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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 "$28.28". Am I missing something? Shouldn't these two operations use the same currency symbol and formats?
View 2 RepliesI Ported this code from a code project article in c# called Nscript
heres the code
Base App
Imports System
Imports System.IO
Imports System.Resources
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Okay Now I only get two errors (I dont know how to solve them)
Error3Class 'BaseApp' must implement 'Sub OnCompilerError(errors() As CompilerError)' for interface 'IScriptManagerCallback'.
And
Error4Class 'ScriptManager' must implement 'Sub CompileAndExecuteFile(file As String, args() As String, callback As IScriptManagerCallback)' for interface 'IScriptManager'.
But What I would also Like to know (as well as how to fix the errors), is would the code work?
I need a regular expression that can validate that a string is an alphanumeric comma delimited string.
Examples:
123, 4A67, GGG, 767 would be valid.
12333, 78787&*, GH778 would be invalid
fghkjhfdg8797< would be invalid
This is what I have so far, but isn't quite right: ^(?=.*[a-zA-Z0-9][,]).*$
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....