VS 2008 Determining Count For Readbytes Function Of Binaryreaders
Feb 8, 2011
I was trying to make a client/server application. Server listens at a specific port for an incoming connection and if there is a connection it accepts is and asks for a password. If password is correct then they simply wait for some "string" from eachother. everything is fine if I send and get data in string format. there is no problem at all!
(By the way I am using simple usual TcpListener/TcpClient, Networkstream, Binaryreader/writer, etc...
I decided to add file transfer option. well for that i needed to transfer data in byte arrays. Because of this I decided to make all data traffic in byte arrays. So I converted strings to arrays and arrays to string in between. In case of file transfer, file chunks are being sent with a cap like "[cap]"<data chunk>. This was my idea. On the other side there is a sub looking what is coming and what does it mean by looking its cap. In case of file transport specific cap, cap will be removed and data is being added to previous ones...
My problem was, that my binaryreader: reader reads incoming data without any parameter:
message=reader.readstring
But in case of readbytes i have to put a parameter called count.
Well I don't know how much bytes are going to come until I get them. In case of TcpClient I can get it with: Client.GetStream.length.
But how can I get the same result with TcpListener? (At the server)
Can I transfer chunks of file bytes in string format and convert them back to bytearrays without any loss or problem?
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Apr 9, 2010
I want to count the amount of records in my table where the distance column is greater or equal to the passed integer.I have:
Dim TenMilesCount = GetDistanceCount("10")
Public Function GetDistanceCount(ByVal Miles As Integer) As Integer
statcon = New OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=D:My
[code]....
Yet running the code gives me "An error occurred creating the form. See Exception.InnerException for details. The error is: No value given for one or more required parameters."
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Nov 1, 2009
When trying to determine the Architecture of an OS, I ran across IntPtr.From reading the documentation, I saw this: Quote:The IntPtr type is designed to be an integer whose size is platform-specific. That is, an instance of this type is expected to be 32-bits on 32-bit hardware and operating systems, and 64-bits on 64-bit hardware and operating systems.
Since the size of IntPtr is intended to be the size of the architecture, would it be feasible to test the size and determine the OS by that? Or is there a better way?
I was thinking there might also be a way via WMI, but I don't want to use that for compatibility reason.
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Jan 6, 2009
I am looking for a method to determine an applicants age from a masked text box(date). Below is what I am using but I wnat to utilize vb.net code instead of inherited datediff from VB6, also this method rounds off the age e.g 44.9 to 45 which is not acceptable.
Below is what I am currently using, looking for a better way.
Private _age As Int32
Private _SixQvar As Int32
'This determines the age of the client and sets the value of _SixQvar
[Code]....
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Dec 5, 2009
I wrote this code to try and figure out which drive Windows is installed on - it basically starts with C and looks for the first "fixed disk" with a Windows folder.
' Start with c: and look for first fixed drive (type=3) with a windows folder
Dim getInfo As System.IO.DriveInfo
Dim m_start As Integer = 67
Dim m_drv As String = Chr(m_start) & ":windows"
[Code] .....
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Mar 10, 2011
The object is to have a user input a sentence and then count the number of s's and z's total are in the sentence. The counting must be done in a function procedure. Would this make use of the Index keyword?
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Apr 12, 2010
how can i do a date count like from 1st jan 2010 to 19th may 2010, how many days are there in it? is there such function like datecount?
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Aug 2, 2011
I write the code below. I want to make short using linq count.
Dim query0 = From obj In dtAginglist _
Where (obj.Field(Of String)("CurrentStatus") = "Open" Or obj.Field(Of String)("CurrentStatus") = "Acknowledge") _
[Code]....
I try to use code below but it dosen't work with if source is datatable.
Dim orderCounts = From c In customers New With { _
c.CustomerID, Key .OrderCount = c.Orders.Count() }
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Jul 14, 2009
I have the following search code which works fine. However, I have an additional task to do, which is create a count function for the Record found or Record not found. Presently what it does is it searches and if a record is found it displays at the tooltip "Record Found" if not it says "Record Not found". However, sometimes you have 2 or more records. Therefore, the tooltip should say the exact amount of records found.. For example, 3 Records Found or even 5 Records Found. Also if only one record is found it says "Record Found" but if more it should display " 2 Records Found".
Private Sub btnPerformSearch_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnPerformSearch.Click
' Declare local variables...
Dim intPosition As Integer
' Determine the appropriate item selected and set the
' Sort property of the DataView object...
[Code] .....
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Jan 18, 2011
I have a DLL , written in VB.Net. This DLL has a below Function: Public Shared Function CreateApplication(ByVal aobj As Object) As Object When i Try to call this function by exe application with below routin i get "Parameters count mismach" Error. Public Function loadDllAndRunMethod(ByVal dllFilePath As String, ByVal className As String, ByVal methodName As String) As Object
[Code]....
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Nov 2, 2010
I have added a column to a Datatable called CallsPerDay which is there to tell me how many telephone calls have been made on a particular day or days.Is there a datacolumn.expression which will allow me to Filter on the day, count the rows and then populate this added column with the result.
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Jul 16, 2010
I have some reports that I use with the MS ReportViewer and I need to get a count of the physical pages (as opposed to logical page count) to use with a print dialog. I've implemented a workaround so the ReportViewer control displays the correct number of physical pages, but is there a way to get that value from the ReportViewer control? The only publicly accessible property gives the logical page count.
[Code]...
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Feb 18, 2011
Basically, Is it possible to get a grids row count using jquery.if my grid has 20 rows in it not including the header or footer, i want to now the count of actual rows, this will tell my users how many tasks they have in their list.
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Dec 10, 2010
designing a Windows based computer program that will allow a user to enter some number (n) and a choice of a count up or count down for that many numbers. So for example, the user enters 5 as their number and selects the count down option, the message box displayed would contain the message: "Here are your numbers: 5,4,3,2,1,0"
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Oct 1, 2011
This is what I have, but It doesn't work with strings for some reason (only text files):
[Code]...
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Aug 20, 2009
Hi. what is the difference of sleep function and pause function (using timer) between a loop.
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Jul 5, 2009
I am looking for a way to count words in VB My full code is as follows Public Class lblTranslator
[Code]...
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Oct 6, 2010
Declare some class level variables that will keep track of the sums for each column. For example:
[Code]....
During the RowDataBound event, retrieve the data from each column and add it to the appropriate sum. I'm not sure if you are developing an ASP.NET application or a Win-forms desktop application so I cannot help you any further at this point. What have you tried so far to solve the problem?
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Apr 27, 2009
What will happen when 3 function calls same function at a time? I have 3 Function, f1,f2,f3.. Those function after completing their task will call finish() function. What will happen if Finish is Called morethan once..
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Mar 31, 2009
this its a very silly problem i have with CheckBoxList control, i dont know if its just me or what but the whole idea of the control its just great but the implementation its very confusing.
im trying to eval something like this
if CheckBoxList.Items.Item(CheckBoxList.Items.Count-1).Checked=true then.....
or something like
CheckBoxList.CheckedItems.Item(CheckBoxList.Items.Count-1) = Checked then...
the problem its that i dont know how does the checkboxlist works but it just sucks that they had to make it so confuising....
i've handled lots and lots of collection controls and they all work in a similar and simple
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Jul 24, 2009
I am writing a simple program to perform a task at work. It is an update application that will allow end users to update software themselves.I have come up against a problem though. In order to fully complete the installation, the latest service packs have to be installed. The machines are either running XP or 2000 and need updating to the latest service packs.The problem is I cannot find any code that will let me determine the service pack, all I have is:
HTML
MsgBox("Computer's operating system version: " & _
My.Computer.Info.OSVersion)
This finds the OS version, but I don't seem to be able to determine the SP from it. What I need to do is make a piece of code that will find the OS and SP, and then download the latest SP.The service packs are as follows: 2000 needs SP4 and Rollup 1 and XP needs SP3. I value will need to be returned and then stored to create and IF statemenet, but I am stumped on how to find the SP.
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Dec 4, 2009
In my code behind I'd like to be able to tell that I'm running my web site project in Visual Studio (either Debug or Release).I was considering testing for "localhost" but that's not perfect because we could be testing it locally on the server.
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May 2, 2010
I'm trying to count all the files in C: with this code that i have made.
Try
Dim searchResults As String() = Directory.GetFiles("c:", "*.txt", SearchOption.AllDirectories)
[Code].....
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Apr 19, 2010
I have an array with strings in it such as Car, Boat, Plane..[code]How can I count and group them so I have
-CarCount = 4
-BoatCount = 1
-PlaneCount = 1
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Aug 5, 2009
Is there any easy way to determine the IP address for the computer that an app is running on. I looked through the System.Net namespace and didn't see anything of the sort.
Basically, I want to display the IP address to the user, instead of walking them through how to do an "ipconfig". They then can put that IP address into another app, so the one app can talk to the other via UDP.
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Jun 2, 2011
I have a dataset that is filled by a tableadapter and what I'm trying to do is to figure out how to loop through all of the rows in my dataset and determine when someone hasedited/changed the row and then
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Sep 3, 2010
I have written simple code to determine country location using the suffix on the url eg..cn, .se, .br etc. even if its possible to determine country or location using urls that end in .com or .net? I was just reading up on something and found online apps that can determine location/country from the ip so how would I determine the ip or look it up using the url? can I do this in .net?
OK
So I have the following code and I get an exception when the url is invalid or faulty, can anyone help me to catch the error and add the url to another list and continue with my loop.
Public Sub getIpAddress(ByVal querylist As ArrayList)
Dim IPList As New ArrayList
Dim badList As New ArrayList[code].....
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Sep 29, 2011
My current situation is a brain teaser for me, and I wish I could provide code that I have tried but quite frankly - i have no idea how to even start. So this is my situation; I have a tab control, this tab control holds the names of Departments for a Lay-Away manager. The user has the option to click a static tab, "New.." and add a new department. When that happens, the new tab controls name is added to the settings, and a new list-view is created, and named "lst & DepartmentName". The problem is, I have no way of knowing when the Double_Click event of the this list that may, or may not exist happens. I have a method of determining which list is currently active, working with a timer to set a certain value the name of the list, sort of like
Dim lst = GetAllList(TabControl1.SelectedTab)
cList = lst.Item(0)
Considering there is only one listview per tab, it will always be 0. So, question is - How could I determine when that particular listviews Double_Click event happens ? Then I will use it to call a certain Button_Click event?
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Mar 2, 2012
Through ACL I could restrict access to a directory in an NTFS-Formatted USB, what I want to do now is to be able to check if any virus/malware tried to infect my folder so I will know if it is safe to unlock the folder in that machine, is there any way in .Net that I can do this?
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Sep 8, 2010
How can I determine which box a user has chosen from the points array I stored it in? EX:
Points.add(box1)
Points.add(box2)
Points.add(box3)
User selects box2
How can I determine from the points array(x) which box he chose?
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