66 lines
1.6 KiB
C#
66 lines
1.6 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2017 The OpenRA Developers (see AUTHORS)
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* This file is part of OpenRA, which is free software. It is made
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* available to you under the terms of the GNU General Public License
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* as published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version. For more
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* information, see COPYING.
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*/
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#endregion
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using System;
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using System.Collections.Generic;
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using System.Data;
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using System.Text;
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namespace OpenRA.Mods.Common.UtilityCommands
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{
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public static class Extensions
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{
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public static string ToCharacterSeparatedValues(this DataTable table, string delimiter, bool includeHeader)
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{
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var result = new StringBuilder();
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if (includeHeader)
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{
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foreach (DataColumn column in table.Columns)
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{
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result.Append(column.ColumnName);
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result.Append(delimiter);
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}
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result.Remove(result.Length, 0);
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result.AppendLine();
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}
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foreach (DataRow row in table.Rows)
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{
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for (var x = 0; x < table.Columns.Count; x++)
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{
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if (x != 0)
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result.Append(delimiter);
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result.Append(row[table.Columns[x]]);
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}
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result.AppendLine();
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}
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result.Remove(result.Length, 0);
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result.AppendLine();
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return result.ToString();
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}
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public static IEnumerable<TSource> DistinctBy<TSource, TKey>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector)
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{
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var knownKeys = new HashSet<TKey>();
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foreach (TSource element in source)
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{
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if (knownKeys.Add(keySelector(element)))
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yield return element;
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}
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}
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}
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} |