1) how can i past the channel's topic in dialogs in Edit box?
2) how to do that no1 can left the channel?
that the channel will always back when some1 will trying to close the channel

1. Use $chan(#channel_name).topic with /did -a dialog editbox_id.
2. You can't force users to stay in your channel.

I already told you the answer to the 2nd question here.

didnt you ask this already...

it isnt what i have looked for...

im making a script and not on the bot it will be...
so what i need its easy script for me that all who will use the script, cant exit from my channel...

Do you get lonely dude?

If others will use your script you could use the On Part event for them to automatically join your channel when they've closed it, other than that I don't think it could be done.

i have tryed:
on *:PART:#onlineinfo:{
timer 1 1 /join #onlineinfo
}

but in here is to much bugs...

it's been a while since I've done anything with miRC, but I'm pretty sure that,

on *:PART:#:{
if ($chan == #onlineinfo) && ($nick == $me) .join #onlineinfo
}

then again, creating a script, that forces users to stay in your channel, will probably be frowned upon by other users.