SEARCH&REPLACE in a textBox

[Tomomichi Amano]

Hello.
I want to make replace & search functions in my text editor. Thanks to the
kind people here at the newsgroup, I was able to make the [REPLACE ALL]
function.
But I was not able to understand how to REPLACE the next word (the nearest
word from the cursor; not REPLACE ALL, but replace only one word) and SEARCH
the next word.
COuld some one help me? Thanks in advance.

 

[Juan Gabriel Del Cid]

Use the position of the cursor in the text string and find the first occurrence of the search word after that index:

String theText, searchWord, replaceWord;
int cursorPos;

// TODO:
// set the values for each variable above

int foundPos = theText.IndexOf(searchWord, cursorPos);

if (foundPos != -1) {
// if the word was found, copy the preceding text,
// sub the word and copy the trailing text

theText = theText.Substring(0, foundPos) + replaceWord +
theText.Substring(foundPos + searchWord.Length);
}


I hope this helps,
-JG