WebRequest Gives Time Out Second Time?

Apr 5, 2010

I have a Windows program (sort of a crawler) that queries an internet website to collect data from. I use WebRequest and Webresponse. The first time I run the program everything works fine. However the second time I get a Time out exception on the WebRequest.GetRequestStream method.

[Code]...

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Asp.net - WebRequest Async CallBack Code Only Gets Call The First Time?

May 28, 2012

I am an absolute beginner on ASP.net (VB.) Please pardon me if the question is too obvious for the experienced members.I tried to make a simple WebRequest in the async mode in case the target URL takes long to provide the data. In my code below, I just want to see if the callback block (RespCallback) is called correctly every time. If all goes well, lblResult should have the string '123' appended to it every time I click the button which calls the 'GetData' sub.

However, the lblResult only shows 123 after the first click. After the subsequent click, the lblResult only gets appended with '12', as if RespCallback is never called. When I tried to debug this in Visual Studio, the execution actually stepped right into the RespCallback part and the lblResult.Text watch actually shows '123123' but the resulting Web page always shows only '12312'

I am sure I am missing something basic here, but I just don't know what. I was even guessing that it has to do with browser cache (hence the result changes for the second time) but I don't know how to fix that either.

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C# - Convert A Date And Time To UTC Time Based On The Time Zone Of The User?

Sep 6, 2009

I have an ASP.NET application with a SQL Server back end. I am storing all my dates in UTC format and doing the appropriate conversions to the local time zone of the browser viewing it. One of the pages asks for a start date and end date (no times).

I am taking the start date and setting the time to 00:00:00 hours (midnight) and I'm taking the End time and adding a time of 23:59:59, so that the date range covers the whole day. Now what I'm trying to do is do a SQL query to do a search for records in this date range. The problem is, the data in SQL is in UTC time and the user is typing their dates and times in their local date and times. My quickest solution was to convert the date and time to UTC, then search the records. However, by doing this, I am to believe ASP.NET converts the given time and date to UTC based on the server time zone. How can I convert a date and time to UTC time based on the time zone of the user?

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List To Update Every Time And Show The Values Each Time To Which The Previous Value Is Added To The New Calculation?

Jun 22, 2010

The idea with this form is to add the futures which is calculated when the button is pushed but I need the list to update every time and show the values each time to which the previous value is added to the new calculation, e.g. of what it should look like in listbox:

Year 1: $1,290.93
Year 2: $2,724.32
Year 3: $4,350.76
etc....

I have been working on this a while and I am at a standstill, I was given a function to clear the form everytime it calculates but I don't know how to implement it, I am new to VB. Here is what I have so far:

Public Class frmFutureValue
Private Sub btnCalculate_Click(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles btnCalculate.Click

[code]....

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Show Messagebox/play Sound When System Time = Time Displayed In Listview?

Nov 13, 2010

Basically i'm trying making a task manager program for myself. I want to know how I can display a message box and or play a sound when system time = time displayed in listview. I have used a dropdown box for the user to select which option they would like to select - sound or message box to popup. The data for the task will be stored in a listview box. I want it so that when the date and the time is = to the date and time set for the reminder the action will follow.Here is my code so far:

Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim notext As String = ""
If TextBox1.Text = notext Then[code]....

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Clock - UTC - Give The Users Current Time Zone/local Time

Jul 22, 2011

So I currently have the following:

2 timers

2 labels

1st label is "Clock" this pulls the time from the users current time zone/local time

2nd label is "UTCClock" Which would be UTC time

Now I have this for the first label: clock.Text = Format(TimeOfDay, "hh:mm:ss tt")

Which would give the users current time zone/local time. As for the UTC.. how would I add in for the UTC time from where the user is located at? I did some searches.. but couldnt find what I was looking for.. IM pretty sure its not as easy as getting the users current time zone/local time.. So im assuming that Theres a "bit more" code into getting UTC time..

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Get SNTP Time - User Can Changes The System Time Of His Computer To A Advancing Date?

Jan 24, 2012

I'm using

Days = Dat2.Subtract(Dat1).Days

where

Dat2 = today

Dat1 = installed date

to trace the days of a program installed in user's computer.However, the user can changes the system time of his computer to a advancing date. How can I get a SNTP time from internet to solve this problem?

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VS 2008 - Time Measure - Total, Average, Estimated And Finished Time

May 3, 2009

I need a start date, a Total time passed until now, an average time per step, and a estimated time to finished. How can I do that? Also, I can close the application and when start up again I want to get the time counters as the last time, so How can I store that data is normal txt file (I say txt to take advantage of the ini app file which is a txt).

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When Form Loads It Load The Current Date And Time But The Time Does Not Change It Should Run?

Aug 24, 2010

I am using this line of code on form load event it is working very fine but i have to problems

1. It replaces the form name and display the date and time but i want to keep both date and time and forms caption separated by some space.

2. When form loads it load the current date and time but the time does not change it should run.

What should i do please please help me code is as follows

Me.Text = Date.Now.ToLongDateString & " - " & TimeOfDay

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Remoted DateTime Values Can Not Be Converted To The Equivalent Local Time Of A Remote Computer That Is In A Different Time Zone

Aug 24, 2011

I used .NET Framework 1.1 in C/S project before. Now I have updated the project to use .NET Framework 3.5 without modifying source code, but I have found that : the Remoted DateTime values can not be converted to the equivalent local time of a remote computer that is in a different time zone. In .NET Framework 1.1, the DateTime values can be converted automatically.

[Code]...

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Asp.net - Format A Varchar In A Gridview In Military Time To Standard Time

Apr 19, 2012

There is a varchar column in the database table in this format of military time 1230 or 1750 or 1320 and that field get populated into a gridview in asp. I need to convert that string to standard time. I have tried the DateFormatString and nothing seems to work.

the asp is

<asp:BoundColumn DataField="ScanTime" SortExpression="ScanTime" ReadOnly="True"
HeaderText="Scan Time" DataFormatString="{0:hh}:{0:mm} {tt}">
<ItemStyle Width="80px"></ItemStyle>
</asp:BoundColumn>

that DateFormatString causes Input string was not in a correct format. error.

I have tried combinations of hh:mm and things like that but since its a varchar I think its failing

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Asp.net - Get The Current Date And Time In Textbox In IST ( Indian Standard Time)

Dec 6, 2010

How to get the current date and time in textbox in IST ( Indian Standard Time) in vb.net ?

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At Time Of Recoredset Movenext Out Of Memory error Occured  In Run Time

Jan 1, 2010

at the time of recoredset movenext out of memory error occured in run time data have 3800000 lakh recored

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Converting Unix Time Stamp To Normal Format Time?

Dec 18, 2010

Is there a way of converting a unix time stamp to normal format time and date in .NET?

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IDE :: Component Will Not Render At Design-time, But Works Fine At Run-time?

Jan 30, 2009

using VS2008, targetting framework 3.5I have a rather complex UserConrol which does some of its own rendering.I display this UserControl on a form.Opening that form in the Designer creates an instance of the UserControl in the Designer, which tells me a NullReferenceException is occurring in one of my rendering methods.I have attempted to correct this by making alterations to the UserControl's default constructor, but have not found success.

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Run Time Control Creation - Add X-number Of Text Boxes At Run Time

Jun 9, 2011

Just getting started in VB.NET. I would like to add X-number of text boxes at run time. And then be able to address them by their index or some sequential numerical value (like an array)

This is what I have so far:

CODE:

When I turn this into a loop to create multiple toolboxes, how do I assign a name to the controls, or will all of them be named "MyTextBox" ? I'll increment their position so thats no problem.

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Timers.timer Lossing Time When Compared It To System Time

Mar 19, 2012

When I run my app at first its keeps time accurately for the first minute or so there after it starts loosing seconds, and by the end of the day its minutes behind.I've created a class called ServerTimeTimer that has a timers.timer object that elapses every second and adds a second to a dateTime variable, and a property to retrieve the date time.[code]

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Trigger An Event At The Time Selected In The Date Time Picker

Dec 23, 2010

i'm using a date time picker with format set to time. i want to be able to trigger an event at the time selected in the date time picker

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Adjust Date/time From PDT To Local Time By +-24 Hours?

Feb 10, 2012

I have a program that reads a file with Pacific Daylight Time, I want users to see the time and date in their local environment.

At present I have in Australia a time difference of 18 hours, so I have a list box with -24 to +24 and currently set at 18, my code is elementary as long as I have moved past day one of the month it suits me personally, but I want to distribute my app, so I need something better.

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Date Time Picker And Event To Trigger With Just Time

Dec 22, 2010

i'm using a date time picker and want an event to trigger with just the time so it will trigger every day at a certain time. can anybody help

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Find Time Falls Between 2 Specific Time Range?

Jun 15, 2012

I want to verify if the current system time falls within the specified time range between 7:30pm - 9:00pm. If it falls within the specified time range then display a message.

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Modify Time Span In Comparing More Than 40's Variables Time?

Mar 16, 2012

i have difficulties in making school schedule time and school bell? how to modify time span in comparing more than 40's variables time.

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Now() Function Returns Date And Time Which Is Different From System Time

Nov 24, 2009

The Now() function in VB.NET returns date and time which is different from the system time that I see on the right-bottom on the notification bar. It is 15 hours slower than the system time. Has anyone ever met this problem? I'm using .NET 2.0.

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Store Time Date And Time To The Mysql Database?

Jun 24, 2009

Im using vb.net and the database is mysql to write a time management system. how i store date and time to the database?

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Synchronize Time From The Global Time Server In C # Code

Aug 28, 2010

I am working on a windows application project on NIST time synchronization, but can't get a proper solution for it. If anyone can send me the code to synchronize time from the global time server in VB.net or C # code

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Time Display - Adding Hours To Convert UTC Time

Dec 20, 2010

I am trying to create what I am sure is a simple program to add hours to convert UTC time. I want to type in a UTC time and have it convert for every state in Australia. [Code] Now that works fine however when the conversion goes past "midnight" it then shows the date and time. I have tried about 50 different things but cannot get it to remove the date when the converted time passes midnight. [Code] The string was not recognized as a valid DateTime. There is an unknown word starting at index 18.

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Timer Control - Set The Start Time And Finish Time?

Feb 24, 2012

im using the timer control, how do i set the start time and finish time? for eg, show a label text for 4 secs then hide. Googled for examples but still no joy.

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VS 2008 Upload Files To Webserver From Time To Time?

Dec 7, 2010

I have a webserver and I upload files to my webserver from time to time. I have an ftp account which points to public_html that is main directory.

I though why give full access so I created another ftp account (e.g. test) which points to a specific folder. Now when I try to upload a file using test it fails.

For e.g.

the following code works:
My.Computer.Network.UploadFile("d:ok.txt", "ftp://mysite.com/Test/okay.txt", "main@mysite.com", "mainpw")

- this is because this a/c has access to root folder of website

now following code gives error -

My.Computer.Network.UploadFile("d:ok.txt", "ftp://mysite.com/Test/okay.txt", "test@mysite.com", "testpw")

The remote server returned an error: (550) File unavailable (e.g., file not found, no access).

Well the ftp account test has been given access to a specific folder with the name "Test". So it should at least upload to that folder.

But if I use ftp client (like filezilla) then it works.

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VS 2010 Comparing Current Time To Stored Time?

Mar 27, 2011

I'm writing a report scheduler that is somewhat of a clone to the backupexec scheduler and the layout can be seen in post #10 here: [URL]..It works great and saves/edits/deletes records just fine, but now i need to compare those records one at a time in a windows service that i'm writing in order to trigger automated report creation and emailing - i already have the report and i already have the code for the emailing, i'm just looking for the most efficient way to loop through the table (that i've pulled in to a dataset) and compare its records with the current date and time - if true, the event fires.

[Code]...

1stSun, 2ndSun etc are bit fields, time is a datetime, and the remainder are varchar. My service checks the database every thirty seconds.The english version of what i'm trying to do is "Connect to the database, grab the entire table (it will always only have 5-6 entries max, so i felt 30 second sweeps was okay), and If today is the 1st Sunday of the month, and it is currently 11:00:00 a.m. (could be any day or time, this is just an example) - loop through the dataset to identify if any records match the time field or greater - if they do, fire the report

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Calculate The Time Difference Between Two Points In Time?

Jun 18, 2012

I am trying to calculate the time difference between two points in time. I am using: Environment.TickCount.I set a long variable to the Environment.TickCount and then a second long variable to Environment.TickCount at a later point in time. I then subtract the second long variable from the first long variable, yet an incorrect difference is returned.

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