// Internal Field/Property helper
// public static TField GetTypeFieldValueAs<T, TField>(this T obj, string fieldName) => typeof(T).GetFieldValueAs<T, TField>(fieldName, obj);
// public static TProperty GetTypePropertyValueAs<T, TProperty>(this T obj, string propertyName) => typeof(T).GetPropertyValueAs<T, TProperty>(propertyName, obj);
public static string ToCsv <T>(this IEnumerable <T> objectlist, List <string> excludedPropertyNames = null, bool quoteEveryField = false, bool includeFieldNamesAsFirstRow = true)
{
if (excludedPropertyNames == null)
{
excludedPropertyNames = new List <string>();
}
var separator = ",";
var t = typeof(T);
var props = t.GetProperties();
var arrPropNames = props.Where(p => !excludedPropertyNames.Contains(p.Name)).Select(f => f.Name).ToArray();
var csvBuilder = new StringBuilder();
if (includeFieldNamesAsFirstRow)
{
if (quoteEveryField)
{
for (var i = 0; i <= arrPropNames.Length - 1; i++)
{
if (i > 0)
{
csvBuilder.Append(separator);
}
csvBuilder.Append("\"");
csvBuilder.Append(arrPropNames[i]);
csvBuilder.Append("\"");
}
csvBuilder.Append(Environment.NewLine);
}
else
{
var header = string.Join(separator, arrPropNames);
csvBuilder.AppendLine(header);
}
}
foreach (var o in objectlist)
{
csvBuilder.AppendCsvRow(excludedPropertyNames, separator, quoteEveryField, props, o);
csvBuilder.Append(Environment.NewLine);
}
return(csvBuilder.ToString());
}