質問編集履歴
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test
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実行時に列の入れ替えを可能にするために、AllowUserToOrderColumns プロパティを true にしたのですが、出力する時に入れ替えたはずの列が入れ替わらないのですが、AllowUserToOrderColumnsですが、見た目が変わっているだけでデータの順番は変わっていないということなんでしょうか？
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読み込み
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```ここに言語を入力
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private DataTable Read(string filepath)
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{
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DataTable dataTable = new DataTable();
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string[] lines = File.ReadAllLines(filepath, Encoding.GetEncoding("Shift_JIS"));
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if (lines.Length > 0)
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{
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string firstline = lines[0];
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string[] strHeader = firstline.Split(',');
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foreach (string strWorld in strHeader)
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{
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//dataGridView1.Columns.Clear();
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dataTable.Columns.Add(new DataColumn(strWorld));
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}
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for (int row = 1; row < lines.Length; row++)
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{
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string[] word = lines[row].Split(',');
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DataRow dataRow = dataTable.NewRow();
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int columindex = 0;
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foreach (string strWorld in strHeader)
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{
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dataRow[strWorld] = word[columindex++];
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}
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dataTable.Rows.Add(dataRow);
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}
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}
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//if (dataTable.Rows.Count > 0)
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//{
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// dataGridView1.DataSource = dataTable;
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//}
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return dataTable;
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}
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private void button1_Click(object sender, EventArgs e)
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{
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dataGridView1.Columns.Clear();
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dataGridView1.AutoGenerateColumns = true;
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bindingSource1.DataSource = Read("TextFile1.txt")
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}
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コード
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```
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出力
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```ここに言語を入力
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private void OutputExcel(string path)
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{
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ExcelPackage.LicenseContext = OfficeOpenXml.LicenseContext.NonCommercial;
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using (var excel = new ExcelPackage(new FileInfo(path)))
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{
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var sheet = excel.Workbook.Worksheets.Add("シート名");
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sheet.Cells["A1"].Value = "タイトル";
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var a = new ExcelCellAddress("A3");
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for (int c = 0; c < dataGridView1.ColumnCount; c++)
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{
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sheet.Cells[a.Row, a.Column + c].Value = dataGridView1.Columns[c].HeaderCell.FormattedValue;
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}
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for (int r = 0; r < dataGridView1.RowCount; r++)
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{
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for (int c = 0; c < dataGridView1.ColumnCount; c++)
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{
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sheet.Cells[a.Row + 1 + r, a.Column + c].Value = dataGridView1[c, r].Value;
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}
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}
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excel.Save();
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}
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}
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コード
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```
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