"Bad Sequence Of Commands" FTP Error
Jan 29, 2006
I'm getting a strange error in my VB FTP program. It works fine when I download a file from an FTP server, but the second time that I download the same file i get "503 Bad Sequence of Commands".If I download one file, download 3 other files, and then try to download the first file again, I get the error. If I close the program and open it again, the error is gone when I try to download the file.Is there some command that I need to send the server to unlock the file or something?
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May 11, 2010
I attempting to download 6 files from my FTP site to a local server using VB 2008.After 1 or 2 files are downloaded I am geeting an error Bad sequence of commands.It appears the ftp connection is not closing then re-opening.[code]Then I change the file name. After the 2nd or 3rd file, I get the error message.How would I close the connection and reopen it without having to close the program?
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Dec 20, 2011
I write in VB2010, the software should work with the external hardware via RS232, the thing is when I send a command to the external hardware I have to wait for a reply from the device that command was received, just after I got the answer I want to continue send another command, I have a long sequence of commands i'm supposed to send, but I need to know for sure that the commands were received before I go on to the next command. I did the following code, but I think the code is not effective, because sometimes I do not get an answer and then the whole sequence commands destroyed. Maybe you can help me optimize the code? [Code]
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May 23, 2012
Should I use using?
[Code]...
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May 24, 2011
I am making a sort Server. But now the problem is that I am going to make a textbox that can make commands like 'ipconfig' in Cmd, but not that command. Its for starting server stopping server and such.
I tried:
if Textbox1.Text = ".serverStart" Then
'Do Stuff here'
End if
But that didn't work?
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Jun 10, 2009
i need help on that. My app is able to debug and execute successfully. But the problem is after i click on the send button, a msg box shows message successfully sent.However the recipient did not receive the msg at all.This is the code below:
[Code]...
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Nov 22, 2010
Just trying to execute commands in cmd.exe just a simple Net Stop [service] and get a error 5. I want it to run cmd in administrator mode. One way I have seen that you can by holding down ctrl & shift while clicking cmd.exe?
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Jan 25, 2010
I'm very dumb in vb.net or any .net languages. Actually while I was creating a package using SQL Server Integration Services, I had a problem. This problem can be solved using VB.net script.
Here is my scenario
I've a database table like this
ColA ColB ColC
[code].....
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Dec 2, 2010
What I need it to do is that when you press a button, the following will happen:
1. Get the first link from a list of links.
2. Open it.
3. Wait a random amount of seconds.
4. Close it.
5. Wait a random amount of seconds.
6. Open the next link and so on...
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May 7, 2012
I'm building my first application in VB2010, this application consists of running 3 different programs; one after the other. I use a progress bar for task progress. My question is on how to make the application go to the next program after finishing with the previous one? Here is some of the code:
Private Sub Timer1_Tick_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
ProgressBar1.Increment(1)
If ProgressBar1.Value = 3 Then
[code]....
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Feb 28, 2011
Im coding a program to grab 3 names and 3 times and display the persons name with the lowest time in the corresponding text box. The program works but only if my values fall within the rules. Im trying to make it so that it displays the correct winner.Quote:
Private Sub btnCalc_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCalc.Click
'Calculate who came in first, second and third place
[code].....
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Nov 25, 2010
Dim mControl As Object
For Each mControl In Me.Controls
If TypeOf mControl Is TextBox Then
If mControl.Text = String.Empty Then
[code].....
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Nov 19, 2009
I want to extract numbers from a sequence. Example: if the number is 1890928 i want to extract "1" or "89" or "909". I think it's something with left or center but i don't know how.
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Jan 25, 2010
I'm very dumb in vb.net or any .net languages. Actually while I was creating a package using SQL Server Integration Services, I had a problem. This problem can be solved using VB.net script. Here is my scenario
[Code]...
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Jul 7, 2011
i have to generate a sequence code for my project it should be 8 bytes acii value.[code]
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Jun 28, 2011
New to programming completely,on VB 10 Express. I am in the process of creating a keypad which I can punch in numbers 1- 9 to enter a password. I have 9 buttons for the numbers. I've got the keys to print the numbers into the textbox above but when I press a second key it replaces the first number in the text box.
My question is, how do I make the numbers go in sequence, so instead of
(Press 1) - 1 -
(Press 2) - 2 - (clears 1)
I want it to go like
(Press 1) - 1 -
(Press 2) - 12 -
and so on...
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May 25, 2011
I have this XML
<?xml version="1.0" encoding="utf-8"?>
<root>
<xsd:schema id="root" xmlns="" xmlns:xsd="[URL]" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="[URL]" />
<xsd:element name="root" msdata:IsDataSet="true">
[Code] .....
And I also have this method, where I take two files and take some values from them, and then I merge all the values into an object in the second query:
Public Shared Function RetrieveTranslation(ByVal filefrom As String, ByVal fileto As String) As List(Of clsTranslation)
Dim valuefrom = (From l In XElement.Load(fileto).Elements("data") Select l.Element("value").Value).FirstOrDefault
[Code] .....
So, the problem is that when I run the code, there is an "Sequence contains no elements" error in the first query(valuefrom). I debugged and it says that there is nothing in the query, but I don't understand why? I'm curious to know if it is well done to do something like I did, create an object from two queries, putting the first value in the second query.
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Feb 28, 2009
While going thru an msdn article, I found a reference to System.Query.Sequence class. But when I try to use it, I get error "Query is not a member of System"
vb.net
Public Sub Linq65()
Dim numbers = From n In System.Query.Sequence.Range(100, 50) _
Select New With {.Number = n, .OddEven = If(n Mod 2 = 1, "odd", "even")}
For Each n In numbers
[Code]...
The above code is vb.net version of this code from msdn. So what is the correct namespace of this class? Or I'm missing something else?
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Mar 24, 2009
Dim c As Integer Dim savef As New System.IO.StreamWriter("C:UsersOwner emplog" & CStr(c) & ".txt") c = c + 1 savef.Write(TextBox1.Text) savef.Close()
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Jan 21, 2012
I have 6 textboxes (named textbox7, 2, 3 , 5 and 6) and i want to switch the values put in them (7 in 6, 6 in 5, 5 in 4, 4 in 3, 3 in 2, 2 in 7) by clicking a button.Actually this should be a volley formation scheme :Pi wrote this
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
TextBox7.Text = Replace(TextBox7.Text, TextBox7.Text, TextBox2.Text)
[code].....
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Jan 12, 2012
i have a file with a serial number in it and i need to check if it is in sequence or not and then print a report stating no errors or if there is errors what line they are on.
[Code]...
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Aug 25, 2009
From my Windows Service I am passing a well-formed XML string to a Java Web Service. The Java Web Service will process the data and return me a status code. Though I am passing a well formatted XML file. I am getting an error from the Java Web Service of:
[Code]....
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Feb 19, 2010
I am creating a program which needs to read a regularly updated online XML file. I am using the XDocument type to do this and currently need to read each row and its attributes' values from XMLs like this one:
<?xml version='1.0' encoding='UTF-8'?>
<eveapi version="1">
<currentTime>2007-12-12 11:48:50</currentTime>
<result>
<rowset name="characters" key="characterID" columns="name,characterID,corporationName,corporationID">
[Code] .....
My first thought was to use a statement similar to this but apparently it is invalid:
For Each d...<rowset>.<row> In d...<rowset>
The reason that this code fails is that it never even enters the for loop, although I'm sure the if block code is wrong too which is why I put a comment there, but my main issue is making the loop work for reading each row in order.
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Jun 2, 2012
I want to create an integer sequence in each page request.Here is my code:
Public Class Test
Inherits System.Web.UI.Page
Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load[code]....
My requirements are just created the sequence using VB.NET code and of no database help. The sequence must be started at 1 and incremented by 1. My attempt to solve this is by using STATIC variable within the Page_Load which can retain the sequence value.But someone told me that my approach is risky because it's not thread safe. Is that true? Or how do I create a sequence for each request that is free from any problems be it thread safe or others?
UPDATE: I attempted to solve the problem another way. But I'm not sure the thread safety of my new solution. Here is my code, the call to Singleton.Instance.Sequence function will generate a new sequence value:
Public NotInheritable Class Singleton
Private Sub New()
End Sub[code]......
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Feb 10, 2012
I need top create a function that gets the next integer in the sequence of 1 to 60. Each time the function is called, I need it to increment from what the last value was and return the next number as the result. It also cannot return the same integer in 2 consecutive calls. When the count gets to 60, the sequence needs to reset back to 1. I would like to function to have no parameters.
I have created a function that does this using the cache to store the last value that was returned, but I am worried that with concurrent calls to the function that it might not work as I expect and 2 calls could get the same integer.
Is cache blocking the correct method to use in this instance or is there something other method I am not thinking about?
Also, stuck using .Net 3.5 and this is a web application.
I just wrote this function based on using SyncLock. Any obvious problems with it that I don't see? I am using the Cache to save the last value that was returned.
Private Shared Function GetNextNumber() As Integer
Dim o As Integer
Dim r As Integer
[Code].....
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Jun 30, 2010
I have built a blog platform in VB.NET where the audience are very young, and for some reason like to express their commitment by repeating sequences of characters in their comments.
Examples:
Hi!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3
LOLOLOLOLOLOLOLOLOLOLOLOLLOLOLOLOLOLOLOLOLOLOLOLOL
..and so on.
I don't want to filter this out completely, however, I would like to shorten it down to a maximum of 5 repeating characters or sequences in a row.I have no problem writing a function to handle a single repeating character. But what is the most effective way to filter out a repeating sequence as well?This is what I used earlier for the single repeating characters
Private Shared Function RemoveSequence(ByVal str As String) As String
Dim sb As New System.Text.StringBuilder
sb.Capacity = str.Length
[code]....
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Jan 20, 2009
I have a situation with several TextBox controls on a WinForm. "Rules" are processed on the Leave event of one TextBox (TextBox1) which can disable or enable the very next textbox in the tab sequence. It appears that if the "rule" disables the next textbox, focus remains on the prior textbox. In this case, the focus is in the wrong place AND, if user clicks "{TAB}" again, no events fire for TextBox1. I am looking for a solution that does NOT require hard-coded knowledge of the tab sequence to make tab navigation (and events) work properly. See small code sample below that demonstrates the problem:
private void textBox1_Leave(object sender, EventArgs e)
{
if (textBox1.Text == "bob") // simulating a "rule"
[code].....
The problem was first identified because of rules triggered in a class entity that was "bound" to the form controls, but data binding does not seem important to the symptoms.Is this a quirk/limitation of the WinForm event model?Rhino907
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Dec 28, 2009
So, when you bind a collection of Entity objects to a grid component, the grid displays those fields in the sequential order they are found in the SQL Table they came from. This shows that the ordinal position of the fields are associated with their corresponding entity properties... somehow or other.
So here is the question: How can I obtain the table field ordinal position by reflecting over an Entity Framework Entity's properties? Let me tell you what I know and what I have tried. Apparently, each data field property in an EF Entity is decorated with a System.Runtime.Serialization.DataMemberAttribute. This attribute appears to have an Order property. However, I have discovered that this property does not contain what I am looking for. The value for all Data Properties in an Entity seems to be -1. What ever order is, it isn't ordinal position.
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Mar 3, 2009
I am working on an application with about 50 controls and want to arrange the events so that I can find them easier. There are several events for each control and since they wer all created at different times code for controls is in order by date created.
I want to change the order. Naturally I want to avoid cutting and pasting.
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May 12, 2009
I need to convert sequence of JPEG files in WMV. is there any way to do that? I also checked in windows media sdk. but the resources are very scarce. It will be helpful if I get it in VB.NET.
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