104 lines
3.5 KiB
C#
104 lines
3.5 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Data;
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namespace MatrixCalculator
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{
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public static class CsvParser
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{
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/// <summary>
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/// Converts a CSV string into a DataTable
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/// </summary>
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/// <param name="csv">CSV</param>
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/// <param name="separators">Separator characters</param>
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/// <param name="combine">Should separators be combined?</param>
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public static DataTable GetTable(string csv, char[] separators, bool combine = false)
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{
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DataTable table = new DataTable("table");
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table.Columns.Add();
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csv = csv.TrimEnd('\n', '\r');
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string[] lines = csv.Split('\n');
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for (int i = 0; i < lines.Length; i++)
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{
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string[] vals = lines[i].Split(separators, (combine ? StringSplitOptions.RemoveEmptyEntries : StringSplitOptions.None));
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table.Rows.Add("");
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for (int j = 0; j < vals.Length; j++)
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{
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if (j >= table.Columns.Count) table.Columns.Add();
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table.Rows[i][j] = vals[j];
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}
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}
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return table;
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}
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/// <summary>
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/// Converts matrix to CSV string
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/// </summary>
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/// <param name="m">The matrix</param>
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/// <param name="sep">CSV separator character</param>
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public static string ToCSV (MathNet.Numerics.LinearAlgebra.Matrix<double> m, char sep = ',')
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{
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StringBuilder str = new StringBuilder();
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for (int i = 0; i < m.RowCount; i++)
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{
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for (int j = 0; j < m.ColumnCount; j++) {
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str.Append(m[i, j]);
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if (j < m.ColumnCount - 1) str.Append(sep);
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}
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str.Append('\n');
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}
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return str.ToString();
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}
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/// <summary>
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/// Converts the data in a DataGridView to CSV format
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/// </summary>
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/// <param name="m">The DataGridView</param>
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/// <param name="sep">CSV separator</param>
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public static string ToCSV(System.Windows.Forms.DataGridView m, char sep = ',')
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{
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return ToCSV(m, 0, 0, m.Rows.Count, m.Columns.Count, false, sep);
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}
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/// <summary>
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/// Converts the data in a DataGridView to CSV format
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/// </summary>
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/// <param name="m">The DataGridView</param>
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/// <param name="startRow">First row in range.</param>
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/// <param name="startCol">First column in range.</param>
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/// <param name="endRow">Last row in range.</param>
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/// <param name="endCol">Last column in range.</param>
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/// <param name="just_selected">Only selected cells will be taken.</param>
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/// <param name="sep">CSV separator</param>
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public static string ToCSV(System.Windows.Forms.DataGridView m, int startRow, int startCol, int endRow, int endCol, bool just_selected = false, char sep = ',')
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{
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StringBuilder str = new StringBuilder();
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for (int i = startRow; i < endRow; i++)
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{
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for (int j = startCol; j < endCol; j++)
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{
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if (!just_selected || (just_selected && m[j, i].Selected))
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str.Append(m[j, i].Value);
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if (j < m.ColumnCount - 1) str.Append(sep);
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}
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str.Append('\n');
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}
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return str.ToString();
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}
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}
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}
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