Get Line in richtextbox1

ok I was wondering if its possible to get the line were setLSBCookie( is at . This is my code but didnt work out

vb.net Code:

i = RichTextBox1.Lines.IndexOf("setLSBCookie(")

This is my error:

Overload resolution failed because no accessible 'IndexOf' accepts this number of arguments.

does it startwith "setLSBCookie(" or contain "setLSBCookie(" ?

Quote:

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Originally Posted by .paul.

does it startwith "setLSBCookie(" or contain "setLSBCookie(" ?

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Starts with "setLSBCookie("

try this:

vb Code:

dim index = (from line in RichTextBox1.Lines _
                where line.startswith("setLSBCookie(") _
                select RichTextBox1.Lines.IndexOf(line)).toarray
 
msgbox(index(0))

sorry, my mistake. it should be:

vb.net Code:

Dim index = (From line In RichTextBox1.Lines _
                 Where line.StartsWith("setLSBCookie(") _
                 Select Array.IndexOf(RichTextBox1.Lines, line)).ToArray
 
MsgBox(index(0))