Sample code for 30+ languages & platforms
Unicode C

CSV Set Cell by Index or Name

Demonstrates how to update the value of a CSV cell, or add new cells.

Chilkat Unicode C Downloads

Unicode C
#include <C_CkStringBuilderW.h>
#include <C_CkCsvW.h>

void ChilkatSample(void)
    {
    BOOL success;
    BOOL bCrlf;
    HCkStringBuilderW sb;
    HCkCsvW csv;
    int row_idx;

    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

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

    csv = CkCsvW_Create();

    CkCsvW_putHasColumnNames(csv,TRUE);
    success = CkCsvW_LoadFromString(csv,CkStringBuilderW_getAsString(sb));

    //  Update the city "Gilbert" to "Tuscon".
    CkCsvW_SetCell(csv,3,4,L"Tuscon");

    //  Add a new row.
    row_idx = CkCsvW_getNumRows(csv);
    CkCsvW_SetCellByName(csv,row_idx,L"permalink",L"yelp");
    CkCsvW_SetCellByName(csv,row_idx,L"company",L"Yelp");
    CkCsvW_SetCellByName(csv,row_idx,L"numEmps",L"");
    CkCsvW_SetCellByName(csv,row_idx,L"category",L"web");
    CkCsvW_SetCellByName(csv,row_idx,L"city",L"San Francisco");
    CkCsvW_SetCellByName(csv,row_idx,L"state",L"CA");
    CkCsvW_SetCellByName(csv,row_idx,L"fundedDate",L"1-Jul-04");
    CkCsvW_SetCellByName(csv,row_idx,L"raisedAmt",L"1000000");
    CkCsvW_SetCellByName(csv,row_idx,L"raisedCurrency",L"USD");
    CkCsvW_SetCellByName(csv,row_idx,L"round",L"a");

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

    //  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,Tuscon,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


    CkStringBuilderW_Dispose(sb);
    CkCsvW_Dispose(csv);

    }