J'ai une question intéressante. Imaginez que beaucoup de données changent à des intervalles très rapides. Je souhaite afficher ces données sous forme de tableau dans l'application de la console. f.ex:
-------------------------------------------------------------------------
| Column 1 | Column 2 | Column 3 | Column 4 |
-------------------------------------------------------------------------
| | | | |
| | | | |
| | | | |
-------------------------------------------------------------------------
Comment garder les choses rapidement et comment corriger la largeur des colonnes? Je sais comment faire cela en Java, mais je ne sais pas comment faire en C #.
Vous pouvez faire quelque chose comme ceci:
static int tableWidth = 77;
static void PrintLine()
{
Console.WriteLine(new string('-', tableWidth));
}
static void PrintRow(params string[] columns)
{
int width = (tableWidth - columns.Length) / columns.Length;
string row = "|";
foreach (string column in columns)
{
row += AlignCentre(column, width) + "|";
}
Console.WriteLine(row);
}
static string AlignCentre(string text, int width)
{
text = text.Length > width ? text.Substring(0, width - 3) + "..." : text;
if (string.IsNullOrEmpty(text))
{
return new string(' ', width);
}
else
{
return text.PadRight(width - (width - text.Length) / 2).PadLeft(width);
}
}
Utilisez String.Format avec les valeurs d'alignement.
Par exemple:
String.Format("|{0,5}|{1,5}|{2,5}|{3,5}|", arg0, arg1, arg2, arg3);
Pour créer une ligne formatée.
Edit: Grâce à @superlogical, vous pouvez maintenant trouver et améliorer le code suivant dans github !
J'ai écrit ce cours sur la base de quelques idées ici. La largeur des colonnes est optimale, elle peut gérer les tableaux d’objets avec cette simple API:
static void Main(string[] args)
{
IEnumerable<Tuple<int, string, string>> authors =
new[]
{
Tuple.Create(1, "Isaac", "Asimov"),
Tuple.Create(2, "Robert", "Heinlein"),
Tuple.Create(3, "Frank", "Herbert"),
Tuple.Create(4, "Aldous", "Huxley"),
};
Console.WriteLine(authors.ToStringTable(
new[] {"Id", "First Name", "Surname"},
a => a.Item1, a => a.Item2, a => a.Item3));
/* Result:
| Id | First Name | Surname |
|----------------------------|
| 1 | Isaac | Asimov |
| 2 | Robert | Heinlein |
| 3 | Frank | Herbert |
| 4 | Aldous | Huxley |
*/
}
Voici la classe:
public static class TableParser
{
public static string ToStringTable<T>(
this IEnumerable<T> values,
string[] columnHeaders,
params Func<T, object>[] valueSelectors)
{
return ToStringTable(values.ToArray(), columnHeaders, valueSelectors);
}
public static string ToStringTable<T>(
this T[] values,
string[] columnHeaders,
params Func<T, object>[] valueSelectors)
{
Debug.Assert(columnHeaders.Length == valueSelectors.Length);
var arrValues = new string[values.Length + 1, valueSelectors.Length];
// Fill headers
for (int colIndex = 0; colIndex < arrValues.GetLength(1); colIndex++)
{
arrValues[0, colIndex] = columnHeaders[colIndex];
}
// Fill table rows
for (int rowIndex = 1; rowIndex < arrValues.GetLength(0); rowIndex++)
{
for (int colIndex = 0; colIndex < arrValues.GetLength(1); colIndex++)
{
arrValues[rowIndex, colIndex] = valueSelectors[colIndex]
.Invoke(values[rowIndex - 1]).ToString();
}
}
return ToStringTable(arrValues);
}
public static string ToStringTable(this string[,] arrValues)
{
int[] maxColumnsWidth = GetMaxColumnsWidth(arrValues);
var headerSpliter = new string('-', maxColumnsWidth.Sum(i => i + 3) - 1);
var sb = new StringBuilder();
for (int rowIndex = 0; rowIndex < arrValues.GetLength(0); rowIndex++)
{
for (int colIndex = 0; colIndex < arrValues.GetLength(1); colIndex++)
{
// Print cell
string cell = arrValues[rowIndex, colIndex];
cell = cell.PadRight(maxColumnsWidth[colIndex]);
sb.Append(" | ");
sb.Append(cell);
}
// Print end of line
sb.Append(" | ");
sb.AppendLine();
// Print splitter
if (rowIndex == 0)
{
sb.AppendFormat(" |{0}| ", headerSpliter);
sb.AppendLine();
}
}
return sb.ToString();
}
private static int[] GetMaxColumnsWidth(string[,] arrValues)
{
var maxColumnsWidth = new int[arrValues.GetLength(1)];
for (int colIndex = 0; colIndex < arrValues.GetLength(1); colIndex++)
{
for (int rowIndex = 0; rowIndex < arrValues.GetLength(0); rowIndex++)
{
int newLength = arrValues[rowIndex, colIndex].Length;
int oldLength = maxColumnsWidth[colIndex];
if (newLength > oldLength)
{
maxColumnsWidth[colIndex] = newLength;
}
}
}
return maxColumnsWidth;
}
}
Edit: J'ai ajouté une amélioration mineure: si vous souhaitez que les en-têtes de colonne soient le nom de la propriété, ajoutez la méthode suivante à TableParser
( notez que ce sera un peu plus lent à cause de la réflexion):
public static string ToStringTable<T>(
this IEnumerable<T> values,
params Expression<Func<T, object>>[] valueSelectors)
{
var headers = valueSelectors.Select(func => GetProperty(func).Name).ToArray();
var selectors = valueSelectors.Select(exp => exp.Compile()).ToArray();
return ToStringTable(values, headers, selectors);
}
private static PropertyInfo GetProperty<T>(Expression<Func<T, object>> expresstion)
{
if (expresstion.Body is UnaryExpression)
{
if ((expresstion.Body as UnaryExpression).Operand is MemberExpression)
{
return ((expresstion.Body as UnaryExpression).Operand as MemberExpression).Member as PropertyInfo;
}
}
if ((expresstion.Body is MemberExpression))
{
return (expresstion.Body as MemberExpression).Member as PropertyInfo;
}
return null;
}
class ArrayPrinter
{
#region Declarations
static bool isLeftAligned = false;
const string cellLeftTop = "┌";
const string cellRightTop = "┐";
const string cellLeftBottom = "└";
const string cellRightBottom = "┘";
const string cellHorizontalJointTop = "┬";
const string cellHorizontalJointbottom = "┴";
const string cellVerticalJointLeft = "├";
const string cellTJoint = "┼";
const string cellVerticalJointRight = "┤";
const string cellHorizontalLine = "─";
const string cellVerticalLine = "│";
#endregion
#region Private Methods
private static int GetMaxCellWidth(string[,] arrValues)
{
int maxWidth = 1;
for (int i = 0; i < arrValues.GetLength(0); i++)
{
for (int j = 0; j < arrValues.GetLength(1); j++)
{
int length = arrValues[i, j].Length;
if (length > maxWidth)
{
maxWidth = length;
}
}
}
return maxWidth;
}
private static string GetDataInTableFormat(string[,] arrValues)
{
string formattedString = string.Empty;
if (arrValues == null)
return formattedString;
int dimension1Length = arrValues.GetLength(0);
int dimension2Length = arrValues.GetLength(1);
int maxCellWidth = GetMaxCellWidth(arrValues);
int indentLength = (dimension2Length * maxCellWidth) + (dimension2Length - 1);
//printing top line;
formattedString = string.Format("{0}{1}{2}{3}", cellLeftTop, Indent(indentLength), cellRightTop, System.Environment.NewLine);
for (int i = 0; i < dimension1Length; i++)
{
string lineWithValues = cellVerticalLine;
string line = cellVerticalJointLeft;
for (int j = 0; j < dimension2Length; j++)
{
string value = (isLeftAligned) ? arrValues[i, j].PadRight(maxCellWidth, ' ') : arrValues[i, j].PadLeft(maxCellWidth, ' ');
lineWithValues += string.Format("{0}{1}", value, cellVerticalLine);
line += Indent(maxCellWidth);
if (j < (dimension2Length - 1))
{
line += cellTJoint;
}
}
line += cellVerticalJointRight;
formattedString += string.Format("{0}{1}", lineWithValues, System.Environment.NewLine);
if (i < (dimension1Length - 1))
{
formattedString += string.Format("{0}{1}", line, System.Environment.NewLine);
}
}
//printing bottom line
formattedString += string.Format("{0}{1}{2}{3}", cellLeftBottom, Indent(indentLength), cellRightBottom, System.Environment.NewLine);
return formattedString;
}
private static string Indent(int count)
{
return string.Empty.PadLeft(count, '─');
}
#endregion
#region Public Methods
public static void PrintToStream(string[,] arrValues, StreamWriter writer)
{
if (arrValues == null)
return;
if (writer == null)
return;
writer.Write(GetDataInTableFormat(arrValues));
}
public static void PrintToConsole(string[,] arrValues)
{
if (arrValues == null)
return;
Console.WriteLine(GetDataInTableFormat(arrValues));
}
#endregion
static void Main(string[] args)
{
int value = 997;
string[,] arrValues = new string[5, 5];
for (int i = 0; i < arrValues.GetLength(0); i++)
{
for (int j = 0; j < arrValues.GetLength(1); j++)
{
value++;
arrValues[i, j] = value.ToString();
}
}
ArrayPrinter.PrintToConsole(arrValues);
Console.ReadLine();
}
}
Plusieurs bibliothèques à code source libre permettent le formatage des tables de console, du plus simple (comme les exemples de code dans les réponses fournies) au plus évolué.
À en juger par les statistiques de NuGet, la bibliothèque la plus populaire pour formater les tableaux est ConsoleTable . Les tables sont construites comme ceci (à partir du fichier readme):
var table = new ConsoleTable("one", "two", "three");
table.AddRow(1, 2, 3)
.AddRow("this line should be longer", "yes it is", "oh");
Les tableaux peuvent être formatés en utilisant l’un des styles prédéfinis. Ça va ressembler à ça:
--------------------------------------------------
| one | two | three |
--------------------------------------------------
| 1 | 2 | 3 |
--------------------------------------------------
| this line should be longer | yes it is | oh |
--------------------------------------------------
Cette bibliothèque attend des cellules d'une seule ligne sans mise en forme.
Il existe quelques bibliothèques basées sur ConsoleTable avec des jeux de fonctionnalités légèrement étendus, comme davantage de styles de ligne.
Si vous avez besoin d'une mise en forme plus complexe, vous pouvez utiliser CsConsoleFormat . † Voici un tableau généré à partir d'une liste de processus (à partir d'un projet exemple):
new Grid { Stroke = StrokeHeader, StrokeColor = DarkGray }
.AddColumns(
new Column { Width = GridLength.Auto },
new Column { Width = GridLength.Auto, MaxWidth = 20 },
new Column { Width = GridLength.Star(1) },
new Column { Width = GridLength.Auto }
)
.AddChildren(
new Cell { Stroke = StrokeHeader, Color = White }
.AddChildren("Id"),
new Cell { Stroke = StrokeHeader, Color = White }
.AddChildren("Name"),
new Cell { Stroke = StrokeHeader, Color = White }
.AddChildren("Main Window Title"),
new Cell { Stroke = StrokeHeader, Color = White }
.AddChildren("Private Memory"),
processes.Select(process => new[] {
new Cell { Stroke = StrokeRight }
.AddChildren(process.Id),
new Cell { Stroke = StrokeRight, Color = Yellow, TextWrap = TextWrapping.NoWrap }
.AddChildren(process.ProcessName),
new Cell { Stroke = StrokeRight, Color = White, TextWrap = TextWrapping.NoWrap }
.AddChildren(process.MainWindowTitle),
new Cell { Stroke = LineThickness.None, Align = HorizontalAlignment.Right }
.AddChildren(process.PrivateMemorySize64.ToString("n0")),
})
)
Le résultat final ressemblera à ceci:
Il prend en charge tous les types de lignes de tableau (plusieurs incluses et personnalisables), les cellules multilignes avec retour à la ligne, les couleurs, la croissance des colonnes en fonction du contenu ou du pourcentage, l'alignement du texte, etc.
† CsConsoleFormat a été développé par moi.
Je voulais des colonnes de largeur variable et je ne me souciais pas particulièrement des caractères de la boîte. En outre, j'avais besoin d'imprimer des informations supplémentaires pour chaque ligne.
Donc, au cas où quelqu'un d'autre aurait besoin de ça, je vous économiserai quelques minutes:
public class TestTableBuilder
{
public interface ITextRow
{
String Output();
void Output(StringBuilder sb);
Object Tag { get; set; }
}
public class TableBuilder : IEnumerable<ITextRow>
{
protected class TextRow : List<String>, ITextRow
{
protected TableBuilder owner = null;
public TextRow(TableBuilder Owner)
{
owner = Owner;
if (owner == null) throw new ArgumentException("Owner");
}
public String Output()
{
StringBuilder sb = new StringBuilder();
Output(sb);
return sb.ToString();
}
public void Output(StringBuilder sb)
{
sb.AppendFormat(owner.FormatString, this.ToArray());
}
public Object Tag { get; set; }
}
public String Separator { get; set; }
protected List<ITextRow> rows = new List<ITextRow>();
protected List<int> colLength = new List<int>();
public TableBuilder()
{
Separator = " ";
}
public TableBuilder(String separator)
: this()
{
Separator = separator;
}
public ITextRow AddRow(params object[] cols)
{
TextRow row = new TextRow(this);
foreach (object o in cols)
{
String str = o.ToString().Trim();
row.Add(str);
if (colLength.Count >= row.Count)
{
int curLength = colLength[row.Count - 1];
if (str.Length > curLength) colLength[row.Count - 1] = str.Length;
}
else
{
colLength.Add(str.Length);
}
}
rows.Add(row);
return row;
}
protected String _fmtString = null;
public String FormatString
{
get
{
if (_fmtString == null)
{
String format = "";
int i = 0;
foreach (int len in colLength)
{
format += String.Format("{{{0},-{1}}}{2}", i++, len, Separator);
}
format += "\r\n";
_fmtString = format;
}
return _fmtString;
}
}
public String Output()
{
StringBuilder sb = new StringBuilder();
foreach (TextRow row in rows)
{
row.Output(sb);
}
return sb.ToString();
}
#region IEnumerable Members
public IEnumerator<ITextRow> GetEnumerator()
{
return rows.GetEnumerator();
}
System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator()
{
return rows.GetEnumerator();
}
#endregion
}
static void Main(String[] args)
{
TableBuilder tb = new TableBuilder();
tb.AddRow("When", "ID", "Name");
tb.AddRow("----", "--", "----");
tb.AddRow(DateTime.Now, "1", "Name1");
tb.AddRow(DateTime.Now, "1", "Name2");
Console.Write(tb.Output());
Console.WriteLine();
// or
StringBuilder sb = new StringBuilder();
int i = 0;
foreach (ITextRow tr in tb)
{
tr.Output(sb);
if (i++ > 1) sb.AppendLine("more stuff per line");
}
Console.Write(sb.ToString());
}
}
Sortie:
Quand ID Nom ---- - ---- 2/4/2013 20:37:44 PM 1 Nom1 2/4/2013 8:37:44 PM 1 Nom2 Lorsque ID Nom ---- - - ---- 2/4/2013 8:37:44 PM 1 Nom1 Plus de données par ligne 2/4/2013 8:37:44 PM 1 Nom2 Plus d'éléments par ligne
C'est une amélioration par rapport à une réponse précédente. Il ajoute la prise en charge des valeurs de longueurs variables et des lignes avec un nombre de cellules variable. Par exemple:
┌──────────┬─────────┬──────────────────────────┬────────────────┬─────┬───────┐
│Identifier│ Type│ Description│ CPU Credit Use│Hours│Balance│
├──────────┼─────────┼──────────────────────────┼────────────────┼─────┼───────┘
│ i-1234154│ t2.small│ This is an example.│ 3263.75│ 360│
├──────────┼─────────┼──────────────────────────┼────────────────┼─────┘
│ i-1231412│ t2.small│ This is another example.│ 3089.93│
└──────────┴─────────┴──────────────────────────┴────────────────┘
Voici le code:
public class ArrayPrinter
{
const string TOP_LEFT_JOINT = "┌";
const string TOP_RIGHT_JOINT = "┐";
const string BOTTOM_LEFT_JOINT = "└";
const string BOTTOM_RIGHT_JOINT = "┘";
const string TOP_JOINT = "┬";
const string BOTTOM_JOINT = "┴";
const string LEFT_JOINT = "├";
const string JOINT = "┼";
const string RIGHT_JOINT = "┤";
const char HORIZONTAL_LINE = '─';
const char PADDING = ' ';
const string VERTICAL_LINE = "│";
private static int[] GetMaxCellWidths(List<string[]> table)
{
int maximumCells = 0;
foreach (Array row in table)
{
if (row.Length > maximumCells)
maximumCells = row.Length;
}
int[] maximumCellWidths = new int[maximumCells];
for (int i = 0; i < maximumCellWidths.Length; i++)
maximumCellWidths[i] = 0;
foreach (Array row in table)
{
for (int i = 0; i < row.Length; i++)
{
if (row.GetValue(i).ToString().Length > maximumCellWidths[i])
maximumCellWidths[i] = row.GetValue(i).ToString().Length;
}
}
return maximumCellWidths;
}
public static string GetDataInTableFormat(List<string[]> table)
{
StringBuilder formattedTable = new StringBuilder();
Array nextRow = table.FirstOrDefault();
Array previousRow = table.FirstOrDefault();
if (table == null || nextRow == null)
return String.Empty;
// FIRST LINE:
int[] maximumCellWidths = GetMaxCellWidths(table);
for (int i = 0; i < nextRow.Length; i++)
{
if (i == 0 && i == nextRow.Length - 1)
formattedTable.Append(String.Format("{0}{1}{2}", TOP_LEFT_JOINT, String.Empty.PadLeft(maximumCellWidths[i], HORIZONTAL_LINE), TOP_RIGHT_JOINT));
else if (i == 0)
formattedTable.Append(String.Format("{0}{1}", TOP_LEFT_JOINT, String.Empty.PadLeft(maximumCellWidths[i], HORIZONTAL_LINE)));
else if (i == nextRow.Length - 1)
formattedTable.AppendLine(String.Format("{0}{1}{2}", TOP_JOINT, String.Empty.PadLeft(maximumCellWidths[i], HORIZONTAL_LINE), TOP_RIGHT_JOINT));
else
formattedTable.Append(String.Format("{0}{1}", TOP_JOINT, String.Empty.PadLeft(maximumCellWidths[i], HORIZONTAL_LINE)));
}
int rowIndex = 0;
int lastRowIndex = table.Count - 1;
foreach (Array thisRow in table)
{
// LINE WITH VALUES:
int cellIndex = 0;
int lastCellIndex = thisRow.Length - 1;
foreach (object thisCell in thisRow)
{
string thisValue = thisCell.ToString().PadLeft(maximumCellWidths[cellIndex], PADDING);
if (cellIndex == 0 && cellIndex == lastCellIndex)
formattedTable.AppendLine(String.Format("{0}{1}{2}", VERTICAL_LINE, thisValue, VERTICAL_LINE));
else if (cellIndex == 0)
formattedTable.Append(String.Format("{0}{1}", VERTICAL_LINE, thisValue));
else if (cellIndex == lastCellIndex)
formattedTable.AppendLine(String.Format("{0}{1}{2}", VERTICAL_LINE, thisValue, VERTICAL_LINE));
else
formattedTable.Append(String.Format("{0}{1}", VERTICAL_LINE, thisValue));
cellIndex++;
}
previousRow = thisRow;
// SEPARATING LINE:
if (rowIndex != lastRowIndex)
{
nextRow = table[rowIndex + 1];
int maximumCells = Math.Max(previousRow.Length, nextRow.Length);
for (int i = 0; i < maximumCells; i++)
{
if (i == 0 && i == maximumCells - 1)
{
formattedTable.Append(String.Format("{0}{1}{2}", LEFT_JOINT, String.Empty.PadLeft(maximumCellWidths[i], HORIZONTAL_LINE), RIGHT_JOINT));
}
else if (i == 0)
{
formattedTable.Append(String.Format("{0}{1}", LEFT_JOINT, String.Empty.PadLeft(maximumCellWidths[i], HORIZONTAL_LINE)));
}
else if (i == maximumCells - 1)
{
if (i > previousRow.Length)
formattedTable.AppendLine(String.Format("{0}{1}{2}", TOP_JOINT, String.Empty.PadLeft(maximumCellWidths[i], HORIZONTAL_LINE), TOP_RIGHT_JOINT));
else if (i > nextRow.Length)
formattedTable.AppendLine(String.Format("{0}{1}{2}", BOTTOM_JOINT, String.Empty.PadLeft(maximumCellWidths[i], HORIZONTAL_LINE), BOTTOM_RIGHT_JOINT));
else if (i > previousRow.Length - 1)
formattedTable.AppendLine(String.Format("{0}{1}{2}", JOINT, String.Empty.PadLeft(maximumCellWidths[i], HORIZONTAL_LINE), TOP_RIGHT_JOINT));
else if (i > nextRow.Length - 1)
formattedTable.AppendLine(String.Format("{0}{1}{2}", JOINT, String.Empty.PadLeft(maximumCellWidths[i], HORIZONTAL_LINE), BOTTOM_RIGHT_JOINT));
else
formattedTable.AppendLine(String.Format("{0}{1}{2}", JOINT, String.Empty.PadLeft(maximumCellWidths[i], HORIZONTAL_LINE), RIGHT_JOINT));
}
else
{
if (i > previousRow.Length)
formattedTable.Append(String.Format("{0}{1}", TOP_JOINT, String.Empty.PadLeft(maximumCellWidths[i], HORIZONTAL_LINE)));
else if (i > nextRow.Length)
formattedTable.Append(String.Format("{0}{1}", BOTTOM_JOINT, String.Empty.PadLeft(maximumCellWidths[i], HORIZONTAL_LINE)));
else
formattedTable.Append(String.Format("{0}{1}", JOINT, String.Empty.PadLeft(maximumCellWidths[i], HORIZONTAL_LINE)));
}
}
}
rowIndex++;
}
// LAST LINE:
for (int i = 0; i < previousRow.Length; i++)
{
if (i == 0)
formattedTable.Append(String.Format("{0}{1}", BOTTOM_LEFT_JOINT, String.Empty.PadLeft(maximumCellWidths[i], HORIZONTAL_LINE)));
else if (i == previousRow.Length - 1)
formattedTable.AppendLine(String.Format("{0}{1}{2}", BOTTOM_JOINT, String.Empty.PadLeft(maximumCellWidths[i], HORIZONTAL_LINE), BOTTOM_RIGHT_JOINT));
else
formattedTable.Append(String.Format("{0}{1}", BOTTOM_JOINT, String.Empty.PadLeft(maximumCellWidths[i], HORIZONTAL_LINE)));
}
return formattedTable.ToString();
}
}
Utilisez la bibliothèque MarkDownLog (vous pouvez la trouver sur NuGet)
vous pouvez simplement utiliser l'extension ToMarkdownTable () à n'importe quelle collection, elle effectue tout le formatage à votre place.
Console.WriteLine(
yourCollection.Select(s => new
{
column1 = s.col1,
column2 = s.col2,
column3 = s.col3,
StaticColumn = "X"
})
.ToMarkdownTable());
La sortie ressemble à ceci:
Column1 | Column2 | Column3 | StaticColumn
--------:| ---------:| ---------:| --------------
| | | X
public static void ToPrintConsole(this DataTable dataTable)
{
// Print top line
Console.WriteLine(new string('-', 75));
// Print col headers
var colHeaders = dataTable.Columns.Cast<DataColumn>().Select(arg => arg.ColumnName);
foreach (String s in colHeaders)
{
Console.Write("| {0,-20}", s);
}
Console.WriteLine();
// Print line below col headers
Console.WriteLine(new string('-', 75));
// Print rows
foreach (DataRow row in dataTable.Rows)
{
foreach (Object o in row.ItemArray)
{
Console.Write("| {0,-20}", o.ToString());
}
Console.WriteLine();
}
// Print bottom line
Console.WriteLine(new string('-', 75));
}
Au cas où cela aiderait quelqu'un, c'est un cours simple que j'ai écrit pour mon besoin. Vous pouvez le changer facilement pour répondre à vos besoins.
using System.Collections.Generic;
using System.Linq;
namespace Utilities
{
public class TablePrinter
{
private readonly string[] titles;
private readonly List<int> lengths;
private readonly List<string[]> rows = new List<string[]>();
public TablePrinter(params string[] titles)
{
this.titles = titles;
lengths = titles.Select(t => t.Length).ToList();
}
public void AddRow(params object[] row)
{
if (row.Length != titles.Length)
{
throw new System.Exception($"Added row length [{row.Length}] is not equal to title row length [{titles.Length}]");
}
rows.Add(row.Select(o => o.ToString()).ToArray());
for (int i = 0; i < titles.Length; i++)
{
if (rows.Last()[i].Length > lengths[i])
{
lengths[i] = rows.Last()[i].Length;
}
}
}
public void Print()
{
lengths.ForEach(l => System.Console.Write("+-" + new string('-', l) + '-'));
System.Console.WriteLine("+");
string line = "";
for (int i = 0; i < titles.Length; i++)
{
line += "| " + titles[i].PadRight(lengths[i]) + ' ';
}
System.Console.WriteLine(line + "|");
lengths.ForEach(l => System.Console.Write("+-" + new string('-', l) + '-'));
System.Console.WriteLine("+");
foreach (var row in rows)
{
line = "";
for (int i = 0; i < row.Length; i++)
{
if (int.TryParse(row[i], out int n))
{
line += "| " + row[i].PadLeft(lengths[i]) + ' '; // numbers are padded to the left
}
else
{
line += "| " + row[i].PadRight(lengths[i]) + ' ';
}
}
System.Console.WriteLine(line + "|");
}
lengths.ForEach(l => System.Console.Write("+-" + new string('-', l) + '-'));
System.Console.WriteLine("+");
}
}
}
Exemple d'utilisation:
var t = new TablePrinter("id", "Column A", "Column B");
t.AddRow(1, "Val A1", "Val B1");
t.AddRow(2, "Val A2", "Val B2");
t.AddRow(100, "Val A100", "Val B100");
t.Print();
Sortie:
+-----+----------+----------+
| id | Column A | Column B |
+-----+----------+----------+
| 1 | Val A1 | Val B1 |
| 2 | Val A2 | Val B2 |
| 100 | Val A100 | Val B100 |
+-----+----------+----------+
J'ai un projet sur GitHub que vous pouvez utiliser
https://github.com/BrunoVT1992/ConsoleTable
Vous pouvez l'utiliser comme ceci:
var table = new Table();
table.SetHeaders("Name", "Date", "Number");
for (int i = 0; i <= 10; i++)
{
if (i % 2 == 0)
table.AddRow($"name {i}", DateTime.Now.AddDays(-i).ToLongDateString(), i.ToString());
else
table.AddRow($"long name {i}", DateTime.Now.AddDays(-i).ToLongDateString(), (i * 5000).ToString());
}
Console.WriteLine(table.ToString());
Cela donnera ce résultat: