Get a Mail-Merge Replacement String by Index

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Demonstrates the Chilkat Email.GetReplaceString method, which returns the replacement string for the Nth previously-defined pattern/replacement pair (a mail-merge feature). The index is zero-based and corresponds to the same index used by GetReplacePattern. This example defines two pairs and prints each pattern with its replacement.

Background: Pairing GetReplacePattern (the token to find) with GetReplaceString (the text to substitute) at the same index lets you walk the full mail-merge table. Retrieving a replacement by its position is handy when enumerating all substitutions; to look one up by its pattern instead, use GetReplaceString2.

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//  Demonstrates the GetReplaceString method, which returns the replacement string for the
//  Nth previously-defined pattern/replacement pair (a mail-merge feature).  The index is
//  zero-based and corresponds to the same index used by GetReplacePattern.

Chilkat.Email email = new Chilkat.Email();
email.Subject = "Hello FIRST_NAME";
email.Body = "Dear FIRST_NAME, welcome to CITY.";

email.SetReplacePattern("FIRST_NAME","John");
email.SetReplacePattern("CITY","Denver");

int n = email.NumReplacePatterns;
int i;
for (i = 0; i <= n - 1; i++) {
    Debug.WriteLine(email.GetReplacePattern(i) + " -> " + email.GetReplaceString(i));
}