c-treeDB API for C# - Developers Guide

Finding Records by Target Key

A record can be found by passing a target key already built by calling CTRecord.FindTarget() method. CTRecord.FindTarget() takes as its parameters a pointer to a target key and the find mode.

// find record with a target key

CTRecord ARecord = new CTRecord(ATable);

byte[] key = new byte[256];

int keylen = 256;

// clear the record buffer

ARecord.Clear();

// set the default index to index 0

ARecord.SetDefaultIndex(0);

// populate the 'product' field

ARecord.SetFieldAsString("product", "DISKETTE");

// build the target key

ARecord.BuildTargetKey(FIND_MODE.EQ, key, ref keylen);

try

{

if (ARecord.FindTarget(key, FIND_MODE.EQ))

Console.Write("Record found\n");

else

Console.Write("Record not found\n");

}

catch (CTException err)

{

Console.Write("Find target failed with error {0}\n", err.GetErrorCode());

}