Convert A List(of Long) Into A String Array?
Oct 26, 2009
I want to convert a List (of Long) into a string array.
Reason: it's a list of database IDs and I want to make a comma delimited string to pass into a stored proc.I tried this:
Dim commaDelimitedList As String = String.Join(",", itemIDList.Cast(Of String)().ToArray)
but I'm clearly not using the Cast correctly since it throws an exception:
System.InvalidCastException: Unable to cast object of type 'System.Int64' to type 'System.String'..
Is there a way to get Cast working for this, or am I stuck with ConvertAll and a delegate function?
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Aug 28, 2009
I'm using String.Join to attempt to turn an array list into a string that is comma separated, such as "1,2,3,4". I can't seem to get the syntax working.
Here's what I'm trying:
Dim aryTest As New ArrayList()
aryTest.Add("1")
aryTest.Add("2")
aryTest.Add("3")
[CODE]...
How can I go about doing this properly?
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Feb 14, 2010
i am trying to convert test from a label into a 'long integer' type. i will then use this long integer type to read from the database (Ms access 07). i will be reading an autoNumber from the database
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Mar 3, 2011
I'm trying to make a hash calculator (For testing now)
I know that MD5 is a 1 way(Meaning that there is no decryption for it, yet)
now I was wondering if SHA-1 is a two way. Also, is there any other hashing method that are 2way?
reason is that I want to convert a long string (Lets say 550 chars) into something lower (From 550chars to something lower then 550chars)
I can use a Key, but every possibility will give me bigger length then the actual string.
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Jun 7, 2011
I am having an issue where the I am trying to use some Regular Expression in a constraint. The issue is it is evaluating the Regex as a string, and throwing an error. "Cannot convert String 'd+' to long".
.MapPageRoute("Parts",
"{PartName}/{Part}/",
"~/Inventory/Default.aspx",
Nothing,
New RouteValueDictionary(New With
{.Part = "d+"}))
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Dec 29, 2009
I am trying to split a long string of data into an array:
[Code]....
Ive tried a few ways to write out the regex, but to no avail. Also, sometimes responseFromServer2 contains newlines, and sometimes it does not, depending on the response I get from the server...
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Jul 29, 2011
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]...
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Jun 11, 2010
I am trying to input a very long list of dog breed names into a DB via phpmyadmin, this will take me for ever manualy and I was thinking if I could work out how to write something quick and nasty to create the sql string for each dog breed it would save me so much time. The sql query for each added forum is in the following format:
[Code]...
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Aug 19, 2011
I'm trying to create a Combobox List and I created the following my first try:
Private Sub ComboBox1_DropButtonClick()
ComboBox1.List = Array("LI-3:comparing and contrasting two or more print sources based on
[code].....
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May 22, 2012
I'm trying to solve a problem regarding types of list. First of all I have a stored procedure in my DB which does a select of a single column and I try to proceed it in my app in VB. By making a method function I declared a DataTable that loads through the SqlCommand(with the CloseConnection behavior). After that I publicly declared a List(Of String) which needs to be populated with the rows/items from the stored procedure that is on the way. Below is my snippet of the code:
Dim dt As New DataTable()
Try
If conn.State = ConnectionState.Open Then
[Code]....
It's LPrefix = collection.Cast(Of String)() where I get an exception error telling me that I can't really convert it. The old fashion way is to iterate with for/for each loop but that's not what I want for best use of performance especially if the list will have thousands of rows from a single column. So basically, I want to insert those items from that DataTable to the List(Of String) without For/For Each loop.
Running on VisualStudio2010 Ultimate, .NET FrameWork 4.0.
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Apr 24, 2009
Here is what I am trying to do:
TemporaryControlsPart.ChannelList = Split(MainControllerModuleChannelList,
";")
Here is the error I receive:
Error 1 Value of type '1-dimensional array of String' cannot be converted to 'System.Collections.Generic.List(Of String)'.
To me, this seems like a reasonable line of code.
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Mar 25, 2010
I have the following code:
[code]...
The intention is to convert an IList of custom objects to a string equivalent comprising each element in the Ilist. Unfortunately I can't seem to find a way to get the underlying data of the custom object, and of course as in the above example, using object simply gives me a string of types definitions, rather than access to the underlying data.
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Feb 28, 2009
I am using Linq to convert an array of any object to a CSV list:String.Join(",", (From item In objectArray Select item.ToString()).ToArray())
This is giving me the strange error: "Range variable name cannot match the name of a member of the 'Object' class."I can get round it by wrapping the string in a VB StrConv method, with a setting of "Nothing":String.Join(",", (From item In oArray Select StrConv(item.ToString(), VbStrConv.None)).ToArray())
However, this seems like a bit of a hack and I would like to avoid it.Does anyone have any ideas when this problems occurs, and any better ways to get round it?
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Apr 15, 2009
Whats the best way to convert a list(of string) to a string with the values seperated by ,
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Oct 7, 2009
I have an array defined As string and the value stored in site is like "7E", "A1" and so on. But in order to send out this array through serial port. I need to change the the array to As Byte instead of using As String. How can I convert it?
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Dec 24, 2011
I need to convert a string array into a very long string with following requirement:
can not using any character escaping can not using XML can not using single character as separator (e.g. comma or space as separator)
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Mar 29, 2011
I am trying to add a value to an array by converting it to a list [code]...
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Sep 3, 2011
how to convert a list of int to byte array in C#, but can't get syntax to work out for me in vb.Converting a list of ints to a byte array.
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Dec 31, 2010
i have data in an array list called txtarray which contains numbers, how can i loop through the array list and convert the values from into a integer variable?
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Apr 8, 2011
[Code]...
How can I convert a csv string into a list in vb.net?
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Dec 1, 2011
I would like to convert a string array (1D) to a string.[code]...
The only way I know that works for sure is to loop through the array.[code]...
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Aug 27, 2011
I am trying to make a user database which stores five fields of information, so I am using an array, currently
Dim details(19, 4) As Array
and I am trying to load from my txt file like this:
Sub ID_Check()
Dim detailfile As String = My.Resources.Details
Dim parts As String() = detailfile.Split(New Char() {" "c})
Dim part As String
[code]....
However I get this error.Value of type 'String' cannot be converted to 'System.Array'.
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Mar 8, 2012
I have tried a couple different ways and cannot seem to get the result I want using vb.net.
I have an array of strings. {"55555 ","44444", " "}
I need an array of integers {55555,44444}
This is a wpf page that is sending the array as a parameter to a crystal report.
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Feb 5, 2011
I'm also sure it involves a for loop and I'm kicking myself for not rememberign it.
Info: Using VB Studio 2008 need to convert a string consisting of numbers ie. "1234567890" to a one dimensional int array where each caracter (digit) holds one place in the array.
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May 30, 2010
I had extracted a string from web scrapping and like to convert to array for manipulation. I had been thinking that i can be done using regex.String extracted : "('1',2,'3,000')"
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Nov 20, 2009
I was wondering if anyone knew how to convery a 2d array into a string in visual basic 2008.I have my code printing out lke so [code]My Stirng is HALLEB and i want to convert my 2d array into that string [code]I have tried to use the string to char method but its not working
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May 10, 2009
Normally, I'd choose List<String> [or, in VB, List(Of String)] over StringCollection whenever possible: see also Best string container.
However, as it seems, generics — and hence, List<String> — are apparently not supported in VS 2008's settings designer. Therefore, if I want to use a list of strings in my user settings, I have to resort to using a StringCollection there.
Now as I don't want to see StringCollection throughout my code, I need to convert it to List<String>. How do I do this efficiently? Or, even better, am I mistaken and there is a way to use List<String> in settings designer?
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Feb 10, 2010
I am trying to Add the name of every folder in a directory to a combobox as a string to use in other code. Then I would like to truncate the last 3 characters off of the folder names.Example:
My main directory is C:Main
My sub folders are C:MainsubOne_bp
C:MainsubTwo_bp
C:MainsubThree_bp
I want a combo box with the following added durring run time.
subOne
subTwo
subThree
The following code will get me the folder names in the combo box, BUT it will not truncate the _bp off of the end and they are added as IO.DirectoryInfo that cannot be used as a string in other tasks.
Dim dir As String = "C:Main"
If (System.IO.Directory.Exists(dir)) Then
Dim di_dir As New IO.DirectoryInfo(dir)
[code]....
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Mar 6, 2012
I am looking for a way to convert my List(Of string) into an Object in vb. So in the end it would be the same as declaring Dim cArray() As Object = new Object. Can anyone point me to how i can achieve this? I cannot use the LINQ .ToArray as that creates a string array and this is not acceptable for my work. I need to pass this object into another one that has the parameter (aArray as Object).
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Jul 22, 2009
Let say in .aspx, i have a text box at login menu
After user key in the text box,
I want the text box string eg : MICROSOFT
Now want a Procedure for .net framework 1.1 how to break the string MICROSOFT
into an array
Array(1) = M
Array(2) = I
Array(3) = C
Array(4) = R
Array(5) = O
Array(6) = S
Array(7) = O
Array(8) = F
Array(9) = T
Then, check each array for symbol. If found symbol like "$" "!" "^" will quit the procedure.
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