Sample code for 30+ languages & platforms
Unicode C++

CSV Append New Row

Demonstrates how to append a new row to a CSV.

Chilkat Unicode C++ Downloads

Unicode C++
#include <CkStringBuilderW.h>
#include <CkCsvW.h>

void ChilkatSample(void)
    {
    bool success = false;

    //  We have the following CSV...

    //  permalink,company,numEmps,category,city,state,fundedDate,raisedAmt,raisedCurrency,round
    //  lifelock,LifeLock,,web,Tempe,AZ,1-May-07,6850000,USD,b
    //  mycityfaces,MyCityFaces,7,web,Scottsdale,AZ,1-Jan-08,50000,USD,seed
    //  flypaper,Flypaper,,web,Phoenix,AZ,1-Feb-08,3000000,USD,a
    //  infusionsoft,Infusionsoft,105,software,Gilbert,AZ,1-Oct-07,9000000,USD,a
    //  gauto,gAuto,4,web,Scottsdale,AZ,1-Jan-08,250000,USD,seed

    bool bCrlf = true;
    CkStringBuilderW sb;
    sb.AppendLine(L"permalink,company,numEmps,category,city,state,fundedDate,raisedAmt,raisedCurrency,round",bCrlf);
    sb.AppendLine(L"lifelock,LifeLock,,web,Tempe,AZ,1-May-07,6850000,USD,b",bCrlf);
    sb.AppendLine(L"mycityfaces,MyCityFaces,7,web,Scottsdale,AZ,1-Jan-08,50000,USD,seed",bCrlf);
    sb.AppendLine(L"flypaper,Flypaper,,web,Phoenix,AZ,1-Feb-08,3000000,USD,a",bCrlf);
    sb.AppendLine(L"infusionsoft,Infusionsoft,105,software,Gilbert,AZ,1-Oct-07,9000000,USD,a",bCrlf);
    sb.AppendLine(L"gauto,gAuto,4,web,Scottsdale,AZ,1-Jan-08,250000,USD,seed",bCrlf);

    CkCsvW csv;

    csv.put_HasColumnNames(true);
    success = csv.LoadFromString(sb.getAsString());

    //  Let's say we want to append the following row:
    //  yelp,Yelp,,web,San Francisco,CA,1-Jul-04,1000000,USD,a

    //  If we have the row as-is, we could do this:
    CkCsvW csvTemp;
    success = csvTemp.LoadFromString(L"yelp,Yelp,,web,San Francisco,CA,1-Jul-04,1000000,USD,a");
    int numCols = csvTemp.get_NumColumns();
    int i = 0;
    int row = csv.get_NumRows();
    while (i < numCols) {
        csv.SetCell(row,i,csvTemp.getCell(0,i));
        i = i + 1;
    }

    //  Show the updated CSV:
    wprintf(L"%s\n",csv.saveToString());

    //  Output should be:
    //  permalink,company,numEmps,category,city,state,fundedDate,raisedAmt,raisedCurrency,round
    //  lifelock,LifeLock,,web,Tempe,AZ,1-May-07,6850000,USD,b
    //  mycityfaces,MyCityFaces,7,web,Scottsdale,AZ,1-Jan-08,50000,USD,seed
    //  flypaper,Flypaper,,web,Phoenix,AZ,1-Feb-08,3000000,USD,a
    //  infusionsoft,Infusionsoft,105,software,Gilbert,AZ,1-Oct-07,9000000,USD,a
    //  gauto,gAuto,4,web,Scottsdale,AZ,1-Jan-08,250000,USD,seed
    //  yelp,Yelp,,web,San Francisco,CA,1-Jul-04,1000000,USD,a
    }