Get a Mail-Merge Replace Pattern

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Demonstrates the Chilkat Email.GetReplacePattern method, which returns a replacement pattern — the search string — previously defined for mail-merge operations with SetReplacePattern. The index is zero-based. This example defines two patterns and enumerates them.

Background: In Chilkat's mail-merge, each entry is a pattern (a placeholder token such as FIRST_NAME) paired with a replacement string. GetReplacePattern retrieves the search side of the pair at a given index; GetReplaceString retrieves the matching replacement. Reading them back is useful for inspecting or logging exactly which substitutions will be applied when the message is sent.

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//  Demonstrates the GetReplacePattern method, which returns a replacement pattern (the
//  search string) previously defined for mail-merge operations with SetReplacePattern.
//  The index is zero-based.

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("Pattern " + Convert.ToString(i) + ": " + email.GetReplacePattern(i));
}