/// <summary>
/// Appends the rows to the builder.
/// </summary>
/// <param name="sb">The string builder.</param>
/// <param name="definition">The definition.</param>
/// <returns>The mutated string builder.</returns>
private static StringBuilder AppendRows(this StringBuilder sb, CsvDefinition definition)
{
foreach (var row in definition.Rows)
{
sb.AppendRow(definition, row);
}
return(sb);
}
/// <summary>
/// Appends the headers to the builder.
/// </summary>
/// <param name="sb">The string builder.</param>
/// <param name="definition">The definition.</param>
/// <returns>The mutated string builder.</returns>
private static StringBuilder AppendHeaders(this StringBuilder sb, CsvDefinition definition)
{
foreach (var header in definition.Headers)
{
sb.Append(header)
.Append(DELIM);
}
return(sb.AppendLineEnd());
}
private static StringBuilder AppendRow(this StringBuilder sb, CsvDefinition definition, CsvRow row)
{
foreach (var header in definition.Headers)
{
var cell = row.SingleOrDefault(c => c.Header == header)?.Value ?? string.Empty;
sb.Append(Encode(cell)).Append(DELIM);
}
return(sb.AppendLineEnd());
}
/// <summary>
/// Converts the file definition to a string.
/// </summary>
/// <returns></returns>
public static string GenerateString(this CsvDefinition definition)
{
if (!definition.ThrowIfNull(nameof(definition)).Validate())
{
throw new InvalidOperationException("Unable to generate CSV output as the definition provided is currently invalid.");
}
return(new StringBuilder()
.AppendHeaders(definition)
.AppendRows(definition)
.ToString());
}
/// <summary> /// Exports the file definition to a byte array. /// </summary> /// <param name="definition">The definition.</param> /// <returns>A byte array representing the file, ideal for downloading.</returns> public static byte[] GenerateBytes(this CsvDefinition definition) => Encoding.UTF8.GetBytes(GenerateString(definition));
/// <summary> /// Exports the file definition to a file. /// </summary> /// <param name="definition">The definition.</param> /// <param name="path">The path of the target file.</param> public static void GenerateFile(this CsvDefinition definition, string path) => System.IO.File.WriteAllText(path.ThrowIfNullOrEmpty(nameof(path)), GenerateString(definition));
