473,405 Members | 2,185 Online
Bytes | Software Development & Data Engineering Community
Post Job

Home Posts Topics Members FAQ

Join Bytes to post your question to a community of 473,405 software developers and data experts.

Threading Problem

I have a text box and a crystal report viewer in a windows form.

As user types in some text in text box, it should immediately display in report viewer. I have done this, but I have problem here, that is "If user types too quickly then refreshing of the preview screen is fine, but if user type slowly then text is lost"

I am not able to find a solution to this problem.

I tried with multithreading, with timer but could not able to implement it.

can someone please help me in this?

Thanks in advance
Apr 28 '10 #1
4 907
semomaniz
210 Expert 100+
Where is the code that you have written?
Apr 28 '10 #2
jkmyoung
2,057 Expert 2GB
"if user type slowly then text is lost"
Are you referring to the text inside the textbox? eg, if you type in abcd then e really slowly, does the keystroke of e wipe out abcd?

If you have an update thread running, when a keystroke comes in, halt the execution of any current update thread and run a new one instead.
Apr 28 '10 #3
Hi,
Thanks for the reply.

I have tried the code in text changed event, key up/down events of text box.

I have tried to do what 'jkmyoung' has suggested, but getting an exception "InvalidOperationException: Cross-thread operation not valid: Control 'TextBox1' accessed from a thread other than the thread it was created on"

Can you please suggest something on this?
Thanks
Apr 29 '10 #4
jkmyoung
2,057 Expert 2GB
I think we need to see code at this point. Try to post only the relevant parts, and use [ code ] code tags [ / code] (without spaces) to get your question answered faster.
Apr 29 '10 #5

Sign in to post your reply or Sign up for a free account.

Similar topics

65
by: Anthony_Barker | last post by:
I have been reading a book about the evolution of the Basic programming language. The author states that Basic - particularly Microsoft's version is full of compromises which crept in along the...
19
by: Jane Austine | last post by:
As far as I know python's threading module models after Java's. However, I can't find something equivalent to Java's interrupt and isInterrupted methods, along with InterruptedException....
17
by: Andrae Muys | last post by:
Found myself needing serialised access to a shared generator from multiple threads. Came up with the following def serialise(gen): lock = threading.Lock() while 1: lock.acquire() try: next...
2
by: Egor Bolonev | last post by:
hi all my program terminates with error i dont know why it tells 'TypeError: run() takes exactly 1 argument (10 given)' =program==================== import os, os.path, threading, sys def...
77
by: Jon Skeet [C# MVP] | last post by:
Please excuse the cross-post - I'm pretty sure I've had interest in the article on all the groups this is posted to. I've finally managed to finish my article on multi-threading - at least for...
11
by: Paul Sijben | last post by:
I am stumped by the following problem. I have a large multi-threaded server accepting communications on one UDP port (chosen for its supposed speed). I have been profiling the code and found...
17
by: OlafMeding | last post by:
Below are 2 files that isolate the problem. Note, both programs hang (stop responding) with hyper-threading turned on (a BIOS setting), but work as expected with hyper-threading turned off. ...
9
by: cgwalters | last post by:
Hi, I've recently been working on an application which does quite a bit of searching through large data structures and string matching, and I was thinking that it would help to put some of this...
5
by: CCLeasing | last post by:
For an application I'm creating I want to create a 'fake' progress bar. By fake I mean a progress bar that looks like it's doing something but actually isn't. I know philosophically this isn't...
126
by: Dann Corbit | last post by:
Rather than create a new way of doing things: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2497.html why not just pick up ACE into the existing standard:...
0
by: Charles Arthur | last post by:
How do i turn on java script on a villaon, callus and itel keypad mobile phone
0
by: emmanuelkatto | last post by:
Hi All, I am Emmanuel katto from Uganda. I want to ask what challenges you've faced while migrating a website to cloud. Please let me know. Thanks! Emmanuel
1
by: nemocccc | last post by:
hello, everyone, I want to develop a software for my android phone for daily needs, any suggestions?
1
by: Sonnysonu | last post by:
This is the data of csv file 1 2 3 1 2 3 1 2 3 1 2 3 2 3 2 3 3 the lengths should be different i have to store the data by column-wise with in the specific length. suppose the i have to...
0
by: Hystou | last post by:
There are some requirements for setting up RAID: 1. The motherboard and BIOS support RAID configuration. 2. The motherboard has 2 or more available SATA protocol SSD/HDD slots (including MSATA, M.2...
0
marktang
by: marktang | last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However,...
0
Oralloy
by: Oralloy | last post by:
Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers,...
0
jinu1996
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven...
0
agi2029
by: agi2029 | last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing,...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.