[2008] need String Help!

i have tried several ways to accomplish this with no success...

i am API'ing text from a chatroom, and storing it into a buffer.

a little later i am API'ing text from the same chatroom, and storing it into
a new buffer...

what i am trying to accomplish is taking the OLD buffer, and deleting it from
from the NEW buffer, so only the NEWEST CHAT is left.

what is holding me up is when the chatroom text is full, and begins dumping
old text making room for new text... my code farts to work

was using the .indexof and .remove functions...

is there any better ways of doing this???

I would post some of your code and show us what you're trying to do. indexof and remove may do just what you need to do but show us how you're using them.

post your coding

this is some new code i wrote for testing to deal with oldest text being
removed from the chatroom's text (when it's full) as new text comes in..
ex.... in a chatroom when chat is full .. 2 new lines come in, 2 oldest lines go
out

now with this tho it only checks 30 characters, which i could have it
check more.. but.... it doesnt factor in the possibilties of
scrollers (people who send the same text to the chat multiple times)

Code:

---

        Dim SrchCrit As String = RichTextBox1.Text.Substring(RichTextBox1.Text.Length - 30) 'last 30 chars of chat

        Dim Del2CharPosition As Int32 = RichTextBox1.Text.LastIndexOf(SrchCrit)  + 30  'get start index for delete position
        Dim OnlyNewChat As String = RichTextBox2.Text.Substring(Del2CharPosition)  'get new chat only

        RichTextBox3.Text = OnlyNewChat

---