Threading Problem

[Monuindia2002]

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

[semomaniz]

Where is the code that you have written?

[jkmyoung]

"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.

[Monuindia2002]

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 "InvalidOperati onException: 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

[jkmyoung]

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.