Setting The String Length ?

Apr 15, 2010

With setting the string length. I have got a streamreader reading from a .doc file into a listbox and then i want to set the string length of how long it to be and then if longer to go to the next line so it will fit in the listbox as the listbox you cant scroll accross but you can up and down.

Ive done this so far:

Try
Dim file_name As String = "K:\Uni\Year 2\Visual Basic\Report\MSDN\Absolute Beginner's Series VB Lesson 1\01 VB Lesson Transcript.doc"

[CODE]........................

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Setting String Length Limit Then Either Substring Or Space Filled

Sep 15, 2011

I'm creating a file thats need to be in this format url... I need to be able to set the limit of the string length for certain fields.Is there an easy way to set the limit of the field so that if the string was larger then the limit then just take the substring and if smaller would add extra spaces?I was able to accomplish something similar to this with integers by just using .toString("00000").

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Substring - Error: Index And Length Must Refer To A Location Within The String. Parameter Name: Length

Apr 17, 2009

this is not working?

[Code]...

End WhileI am trying to read from the ": " to the end of the line. I keep getting this error: Index and length must refer to a location within the string. Parameter name: length

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Index And Length Must Refer To A Location Within The String. Parameter Name: Length Exception

Feb 17, 2011

am getting the above exception while swaping Items in the list(lstRoutePriority).PFB my code

if (lstRoutePriority.SelectedIndex > 0)
{
//Swap the two items

[Code].....

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C# - Setting Maximum Length In A Gridview?

Aug 31, 2010

Below is my gridview sample that retrieve a formatted html in my database..All i want to achieve is to limit the maximum length of characters i.e "50" then automatically create a pagination for the succeeding characters..to be posted in the gridview

<div id="GridScroll" class="grid_scroll">
<asp:GridView ID="GridView2" runat="server" AutoGenerateColumns="False" BorderStyle="None"
GridLines="None"

[code].....

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Output Error "Index And Length Must Refer To A Location Within The String. Parameter Name: Length" With Substring

Mar 23, 2009

"Index and length must refer to a location within the string. Parameter name: length" whenever I run this code

[Code]...

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Substring Size - "Index And Length Must Refer To A Location Within The String. Parameter Name: Length"

Jul 21, 2010

If using the following in an if statement I get an error: If trg.Name.Substring(4, 6).ToUpper <> ("ABCDEF") Then I get the error: "Index and length must refer to a location within the string. Parameter name: length"

I assume this is because the string (trg.name) is too small for the 4, 6 substring. What would be the correct method of working around this problem? VB.net Studio 2008.

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When Transfer The Bytes Sent By The Client Program To A String The String Length Is Affected?

Feb 20, 2010

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]....

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Split A String Into A Fixed Length String Array?

Sep 11, 2011

I have a long string like this

dim LongString as String = "123abc456def789ghi"

And I want to split it into a string array. Each element of the array should be in 3 characters length[code]...

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Getting String.substring(N) Not To Choke When N > String.length

Mar 10, 2010

I'm writing some code that takes a report from the mainframe and converts it to a spreadsheet. They can't edit the code on the MF to give me a delimited file, so I'm stuck dealing with it as fixed width. It's working okay now, but I need to get it more stable before I release it for testing. My problem is that in any given line of data, say it could have three columns of numbers, each five chars wide at positions 10, 16, and 22. If on this one particular row, there's no data for the last two cols, it won't be padded with spaces; rather, the length of the string will be only 14. So, I can't just blindly have

[Code]...

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Vb String Function - Get The Sub String That Is Talking About Length

Nov 4, 2010

If I have a string Metal is hot : Metal length is 5 cm ; Metal is red. I want to get the sub string that is talking about length: hence I want to extract "Metal length is 5 cm".

[Code]...

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Initialize An Indefinite (eg. Decimal) Array Without Setting Boundaries On The Array Length?

Nov 10, 2009

initialize an indefinite (eg. Decimal) array without setting boundaries on the array length?

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Counting The Length Of A String?

Oct 29, 2009

How can I count the length of a string and also how many special characters are in the strings.

For instance if I have this string: $how*

How can I count that string is 5 chars long and that there are 2 special characters in the string. (special characters are the $ and

I think that I am going to have to use the .length method to count the length of the string.

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Field Cannot Be A Zero-length String

Mar 2, 2012

i had the code belowing workin fine before but all of a suden i have a error init

[Code]...

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How To Get String Length Of ReadData

Apr 6, 2011

I was trying to grab the string length of readData but when I try msgbox (readData.Length),
its giving me a large numeric digit instead.
Dim readData as string
serverStream.Read(inStream, 0, buffSize)
Dim returndata As String = _
System.Text.Encoding.ASCII.GetString(inStream)
readData = "" + returndata
msg()

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Set Max String Length In A Class?

Mar 2, 2009

Is there any way to set max string length in a class used in a VB.NET web service so it gets into the WSDL as a maxLength attribute?

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String Length Not Working?

Jul 16, 2009

I have the below code that if there is no .wav file in the current directory then it goes to the default windowsmedia directory to play a random .wav file.

But for some reason if there is no file in the current folder it will not go to the windowsmedia folder, do I have something wrong?

Dim FileNames As String() = System.IO.Directory.GetFiles(".", "*.wav")
Dim FileNames2 As String() = System.IO.Directory.GetFiles("C:WindowsMedia", "*.wav")

[Code]....

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Setting A Radio Button Value According To String Returned From Database. String Is 'Yes' Or 'No'

Jul 24, 2009

I have a radio button control on a web form. The members of my ListItem collection are
assigned the following.

Text No
Value 0

Text Yes
Value 1

So what I need to do, is to readd a varchar value from my database and if the column value returned equals 'Yes' then I need to select the radio button that has the assigned value of 1. Otherwise if the value read from the database is 'No', then I need to select the radio button assigned a value of 0

So how can I set the value for my radio button? I experimented and could not figure it out. The 'Yes' or 'No' value is stored in my database in the field ds.Tables("employee").Rows(0).Item("answer")

So I tried something like this which is not correct:

RadioButtonList1.Items.FindByValue(ds.Tables("employee").Rows(0).Item("answer") = "Yes").Equals(True)

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C# - Ensure That A String Property Is Of A Particular Length?

Sep 2, 2010

I've created some classes that will be used to provide data to stored procedures in my database. The varchar parameters in the stored procs have length specifications (e.g. varchar(6) and I'd like to validate the length of all string properties before passing them on to the stored procedures.

Is there a simple, declarative way to do this?

I have two conceptual ideas so far:

Attributes
public class MyDataClass
{
[MaxStringLength = 50]

[Code]....

This seems like a lot of work and will really make my currently-simple classes look pretty ugly, but I suppose it will get the job done. It will also take a lot of copying and pasting to get this right.

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Checking String If 7 In Length And Contain Any Other Characters

Dec 3, 2011

I am working on a program that will take in a string of length 7 containing either R,G or B for the colours. The program will then check that the string if 7 in length and if it contains any other characters than R, G or B then it will be invalid. I created this code but when I enter the right string length and characters it always gives me the error for not having the right string length.

Private Sub get_cars()
Dim Letter As String
Dim valid As Boolean
Dim position As Integer
txtPosition.Text = position
[Code] ......

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Create An Empty String That Is A Certain Length?

Jan 31, 2011

How can I create an empty string that is a certain length?

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Declare A Fixed Length String?

May 17, 2012

I am having some problems declaring a fixed lenght string in vb.net. I am studying code for using webcam in vb.net, although the code is from vb6 but I am told it works in dot net. Everyting else seems to be working except this line[url]...

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Determine The Length Of A String In Pixels?

Jun 29, 2010

I am trying to determine the length of a string in pixels.

I created a little test program for myself and placed three labels on it, each with the same font in a different size. I set the width of the label to 1024, the screenwidth. I used the same test text for each label, cutting it off at the last character that shows, so there is not hidden text running off the label to be included in the string width count.

What I have found is that the width of the string is being reported as wider than the label, even though, as I just mentioned, there are no characters running off the edge of the label. So, something's awry. Does anyone know how to get an accurate width?

Here follows the whole test code. You can drop three labels on a form and run it to see what I mean.

Code:
Option Explicit On
Option Strict On
Public Class frmMain

[Code].....

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Forms :: Check For A String Length?

May 13, 2009

Here's my

Private Sub CmbLabour1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles CmbLabour1.KeyPress
If Char.IsDigit(e.KeyChar) = False And Char.IsControl(e.KeyChar) = False Then
e.Handled = True

[Code].....

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One Letter Per Textbox And String Length?

Feb 26, 2010

I have a program with 136 textboxes.

I want to be able to take a string that is entered into a textbox, and then put character 1 of the string in Textbox1, char 2 in TB2, char 3 in TB3, etc.

Also, how do I check the length of a string, like strlen in PHP?

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Possible To Shorten Length Of Any Of String In A Way In Which It Also Can Be Reversed?

Jan 1, 2011

Im working a lot with normal strings and during my development process strings with lengts of 10.000+ characters are being processes which makes it a my application run slower.Is it possible to shorten the length of any of string, in a way in which it also can be reversed?

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Replace Error - String Cannot Be Of Zero Length

Mar 13, 2009

I am receiving the following error when trying to replace spaces with %. "String cannot be of zero length. Parameter name: oldvalue" Dim Keywords As String = "test abc" Dim sqlkeywords As String sqlkeywords = Keywords.Replace("", "%") I have also tryed sqlkeywords = Replace(Keywords, "", "%") and it just returns the original.... test abc.

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Resize Textbox To String Length?

Feb 10, 2009

I can't believe how difficult this is, after spending 5 hours searching the closest I find and understand is[code]...

I just wish to resize a dynamic textbox to the string length of the text

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VS 2005 Force String To Be A Certain Length

Oct 12, 2009

In VB6 if you do this,

keyStr = Left$(baseKey + encPassword, 56)

the string will be 56 characters even if it means appending whitespaces to the end.

in VB.NET

keyStr = Left$(baseKey + encPassword, 56)

will not necessarily be 56 characters. How can I force it to append whitespaces at the end if the baseKey + encPassword is less than 56 characters long?

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VS 2010 - String Length No Longer Available

Jul 17, 2011

I have an API that loads into memory from a button click. It can then either load an approx 10MB txt file (ASCII comma delimited characters/decimal list as a string) or live timed data from the internet. The idea is to be able to view the data in a text box. From there I can see what I am doing as far as spitting that info into a datagridview or database. The data is completely out of order in the txt file but has various Getinfo Functions / DLL's accessed via button clicks that split the data into its correct format to display in the text box. The problem I am having is not having fixed length strings in VB 2010. I don't know enough to work out if there is a simple work around or something more complicated required. Everything I have tried has left the textbox empty.

VB 2005 code that works:
Option Strict Off - I want to solve with this ON
Option Explicit On - I want to solve with this ON
Imports VB = Microsoft.VisualBasic
Private Sub Command3_Click(ByVal eventSender As System.Object, ByVal eventArgs As
[Code] ....

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