C++
C++
CSV Append a Column with Values
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Append an additional column and initialize with a value.Chilkat C++ Downloads
#include <CkStringBuilder.h>
#include <CkCsv.h>
void ChilkatSample(void)
{
bool success = false;
// First initialize the CSV with content.
// 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;
CkStringBuilder sb;
sb.AppendLine("permalink,company,numEmps,category,city,state,fundedDate,raisedAmt,raisedCurrency,round",bCrlf);
sb.AppendLine("lifelock,LifeLock,,web,Tempe,AZ,1-May-07,6850000,USD,b",bCrlf);
sb.AppendLine("mycityfaces,MyCityFaces,7,web,Scottsdale,AZ,1-Jan-08,50000,USD,seed",bCrlf);
sb.AppendLine("flypaper,Flypaper,,web,Phoenix,AZ,1-Feb-08,3000000,USD,a",bCrlf);
sb.AppendLine("infusionsoft,Infusionsoft,105,software,Gilbert,AZ,1-Oct-07,9000000,USD,a",bCrlf);
sb.AppendLine("gauto,gAuto,4,web,Scottsdale,AZ,1-Jan-08,250000,USD,seed",bCrlf);
CkCsv csv;
csv.put_HasColumnNames(true);
success = csv.LoadFromString(sb.getAsString());
// Show the initial CSV:
std::cout << csv.saveToString() << "\r\n";
std::cout << "----" << "\r\n";
// Now let's add a new rightmost column.
int numColumns = csv.get_NumColumns();
int numRows = csv.get_NumRows();
// Set the column name.
int columnIdx = numColumns;
csv.SetColumnName(columnIdx,"new_column");
// Add the column to each row.
int i = 0;
while (i < numRows) {
csv.SetCell(i,columnIdx,"newData");
i = i + 1;
}
// Show the updated CSV:
std::cout << csv.saveToString() << "\r\n";
}