private void SetSuffixForDuplicatedColumnNames(DataFrame dataFrame, DataFrameColumn column, string leftSuffix, string rightSuffix)
{
int index = dataFrame._columnCollection.IndexOf(column.Name);
while (index != -1)
{
// Pre-existing column. Change name
DataFrameColumn existingColumn = dataFrame.Columns[index];
dataFrame._columnCollection.SetColumnName(existingColumn, existingColumn.Name + leftSuffix);
column.SetName(column.Name + rightSuffix);
index = dataFrame._columnCollection.IndexOf(column.Name);
}
}