.net :: SynchronizationContext.Send,what Is SendOrPostCallback?
Mar 3, 2011
VB.NET 2010, .NET 4This might be a dumb question but I'm wondering what is special about the SendOrPostCallback delegate that is the first argument in indowsFormsSynchronizationContext's Send and Post methods? In other words, I can do the following:
SyncContext.Send(Sub() ..some work.., Nothing)
And that works (SyncContext is a WindowsFormsSynchronizationContext object). Why might it be preferable to do:
[code]....
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Sep 29, 2009
I need to write a quick function that sends two data items back to the UI thread... with the post/send commands I only see the ability to send one piece of information. Is there a way to do this by overriding these functions?
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Dec 15, 2010
I'm trying to update the UI from a background thread without invoking the control. Mainly because I've tried to do so and it never worked from a class. It worked just fine within the form class, but froze up in the class. I didn't receive any errors, it just lost its multi-threaded-ness.
I'm having a similar problem with using the SynchronizationContext class. I made a quick example to test if this would work how I think it should:
[Code]....
There's very little information on MSDN about this class in general and every example on the web I've seen so far, has nothing to do with classes.
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Nov 9, 2009
[Code]....
Now as you can see it is sending the textbox1 text and then pressing enter then sending textbox2 text! Theres quite a few problems in that but before i discuss note: This code is in a Timer. Problem #1: It does not send the keys fully correct all the time because its trying to send them all at once! So i want it to send them 1 letter after the other with 200 ms sleep in them! Problem #2: The sleep is not working: The reason i know is because even after it did the first textbox1 text it didnt wait that 2000 ms!
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May 28, 2009
Are there any good books out there that will show someone how to set up a form using Visual basic that will take information and send it to the server and then send a recipient an Email?
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Nov 7, 2010
I am using send keys to send the squence Alt W (a integer called 'index') Escape
[Code]...
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May 9, 2012
I am trying to send keys to a control on my form. But I am getting a NullReferenceException and I don't know why. The code is about as basic as it gets: [Code] The error reported is object reference not set to an instance of an object but Send is a shared method so doesn't need an instance. Strangely if I ignore the error it works fine and F4 is passed to the control. I know there was an issue with sendkeys and UAC but I thought this had been solved (I am using 4.0 framework).
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Apr 9, 2012
I have a filter that is used to populate a grid view and the url will conain: /example/grid?value1=1&value2=2
It will then have a link to page 2, which allows them to edit something.I then want them to click a link that will send them back to the gridview under the same parameters of: /example/grid?value1=1&value2=2
Is this possible? How do I hold on and fill in the URL values so it knows how to refill the grid view accordingly?
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Nov 7, 2009
I get an error on SMTP.Send(MyMailMessage) saying 'Failed to send'
My
Dim MyMailMessage As New MailMessage()
ProgressBar1.Value = 30
MyMailMessage.From = New MailAddress("MyGmailEmail")
MyMailMessage.To.Add("MyEmail")
[Code]...
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Apr 29, 2009
I am trying to use the send keys function to send text to another program.I ahve gotten it al working well, except for using () as I know sendkeys doesnt like these.I have tried using the Replace function in several places in my code to replace the ( with {(} and {+0} etc, with various other options tried.But when I run the program, it seems to skip this out completly and leaves them in the string as (, and therefore it errors and wont run.When I step through it, it goes through the function but doesnt alter the strng as it should. This is the code to send the string and my attempt at making it replace the () in the module
Module TextReplacement
Private Declare Function GetAsyncKeyState Lib "user32.dll" (ByVal vKey As Int32) As Short
Dim counter As Integer
Dim sData() As String
[code]....
The error I get when i try send "Test :)" is: ArgumentExcveption was unhandled "SendKeys string 'Test :)' is not valid"
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Aug 27, 2011
I'm making an auto-typer and I need it to only send one line of a multi-lined textbox at a time. It looks like this right now;
If Label1.Text = "1" Then
SendKeys.Send(TextBox2.Text)
SendKeys.Send("{Enter}")
Thread.Sleep(TextBox13.Text)
Timer2.Enabled = False
End If
I want the Textbox2.text to be entered one line at a time and then to sleep for the desired time.
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Oct 18, 2011
how to code that send SMS through broadband either Smart or Globe that send SMS via VB.Net and it connected to the Port?
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Mar 6, 2010
I have a problem.. every program i make in VB.net 2008 express wont start on my friends PC or any other except for mine laptop and mine PC... Instead, they get the "Send/Dont send" error...
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Jul 4, 2010
How can I have a time out between every key I send ?
[Code]...
I don't want to use the sleep method, or to put each code under a timer ... Anything else that I could use?
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Mar 26, 2010
i tried to code sendkeys.send(textbox1.text)but what it did was just pressing down the letter.i wanted to write Shift in textbox and press a button and it will press shift and not S-h-i-f-t
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Mar 29, 2012
Im trying to send data from a Windows Form to an aspx page and send back a response. Im running around in circles trying to make this work. The data im trying to send is 4 strings. So fare I have this in my code, using the build-in webclient in visual studio 2010, in the windows form sending to the aspx
[Code]...
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Mar 13, 2010
I need to use system.windows.sendkeys.send or whatever to send the Windows and D key. How would i do so?
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Sep 22, 2011
I want to send { and } signs to the Active window in Visual Basic 2010.But the problem is when we send a key like "Backspace" we send it as "{BS}".So it also contains the { & } signs.Therefore when we send { and } signs nothing happen.
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Jan 2, 2012
I tried a couple of the send keys and they will not send any keys at all. I need a true Space bar input (SendKeys does not work for me). Also, I would like this to work on 32 and 64 bit computers. Let me know if you know of any good examples. I would love to have the ability to send a string in the future, but I can add that feature myself. [code]
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Jul 20, 2011
I need to setup an application with the purpose of sending an sms . Already know the sms gateway type . But i really want to integrate with sim . i need to send via a sim ( which was connected to pc through COM port)
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May 21, 2009
how to send sms with sender name instead of phone number using the AT Command sets in vb.net 2005.
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Aug 30, 2011
I want create a windows application which is capable of sending sms to a mobile phone but I am not getting where to start from.
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Feb 6, 2011
how to send to ftp in vb 6.0
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Jun 11, 2011
I have a class (Class.vb) that has a variable dimmed (newOption) as a String.I've created a Form with 3 radio button options and OK/Cancel buttons.
[code]...
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Aug 4, 2009
I have this code which is for sending sms. But the problem is that when the first time I connect the modem to the serial port and I run the application and click the send button, it works. But after I want to click the send button again, it cannot sent.
Imports System.Windows.Forms.Form
Imports System.Text.Encoding
Imports System.Threading
[Code].....
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Mar 13, 2009
For the SendKeys, is it possible to 'send' a non-character key? I want to send a direction key (Left direction key) whilst a textbox is in focus so it moves the bar left along the characters, so that - for example:
Code:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
TextBox1.Focus()
[Code].....
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Apr 11, 2010
I need to send a basic email from my site when someone registers for my site. Is their an easy way? or a site to reference?
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Oct 12, 2011
I have already tried it via ajax but it doesn't work And i tried it into cookie but in code behind didnt see it
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Oct 18, 2011
I use below code to run DOS command Net send through VB code but not work I need help to solve this problem Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[Code]...
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Apr 16, 2010
I'm looking for an example of how to send a file over TCP, I've seen a few but none seem to work/seem to be too complex for what I need. It also needs to be reverse connecting preferably.
It just needs to be.
Person One:
IP: 123.456.0.1
Open Port: 501
Person Two:
IP 654:321:0.1
Closed Ports.
Person Two Sends Picture To Person One. I've got it working fine with just strings, but I can't for the life of me make it send a file. With the one working example I did find it only sent the first 9kb of any files. Can anyone provide a basic example?
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