ID CategoryIDNameIsDisabled09-00-op 11;22;33agh1aaa-bb-ccc 44;55;66agh1
假如数据中的表信息是这样的,现在要将此表导出到Excel,ID中的内容要按“-”截取,CategoryId 按“;”截取,变成多对多的关系,保存到Excel 里面。那么导出的结果应该是这样的。
ID CategoryID Name IsDisabled0911agh10922agh10933agh10011agh10022agh10033agh1op11agh1op22agh1op33agh1aaa44agh1aaa55agh1aaa66agh1bb44agh1bb55agh1bb66agh1ccc44agh1ccc55agh1ccc66agh1
以下为 C#代码,很抱歉,没有写注释,如果 有需要,下次改好注释再更新, 下面的方法 有个buge,如果 遇到要 截取的那个 列的内容不符合条件,就执行不成功,这方法适合已经确定了并且统一截取格式的,
private void btnNewExprot_Click(object sender, EventArgs e) { SqlDataAdapter myda = new SqlDataAdapter("select * from [Exam]", conn); DataTable dtTable = new DataTable(); myda.Fill(dtTable); DataSet ds = new DataSet(); ds.Tables.Add(dtTable); //循环行数 for (int rowCount = 0; rowCount < ds.Tables[0].Rows.Count; rowCount++) { string sqlcom = "insert into [Exam] values ("; string sqlcom1 = sqlcom; //循环当前行列数 for (int colCount = 0; colCount < ds.Tables[0].Columns.Count; colCount++) { //获得当前单元格 内容 string colStr = ds.Tables[0].Rows[rowCount][colCount].ToString(); //判断当前单元格 是否 有 “-” if (colStr.Contains("-")) { //如果 字符串中 有 “-” 则按照 - 进行分割成 数组 string[] bStr = colStr.Split(new char[] { '-' }); //循环 分割后的子字符串 for (int i = 0; i < bStr.Length; i++) { //拼接 字符串 //取得 分割后的第一个子字符串进行 拼接 sqlcom = sqlcom + "'" + bStr[i].ToString().Replace("'", "'") + "',"; //从当前行的第二个列开始 for (int colCount2 = 1; colCount2 < ds.Tables[0].Columns.Count; colCount2++) { string colStr2 = ds.Tables[0].Rows[rowCount][colCount2].ToString(); if (colStr2.Contains(";")) { string[] bStr2 = colStr2.Split(new char[] { ';' }); for (int j = 0; j < bStr2.Length; j++) { string sqlcom2 = sqlcom; sqlcom = sqlcom + "'" + bStr2[j].ToString().Replace("'", "'") + "',"; for (int colCount3 = 2; colCount3 < ds.Tables[0].Columns.Count; colCount3++) { sqlcom = sqlcom + "'" + ds.Tables[0].Rows[rowCount][colCount3].ToString().Replace("'", "'") + "',"; } sqlcom = sqlcom.Substring(0, sqlcom.Length - 1) + ");"; SqlCommand comm = new SqlCommand(sqlcom, conn); sqlcom = sqlcom2; comm.ExecuteNonQuery(); } } } sqlcom = sqlcom1; } } } } }
private void button1_Click(object sender, EventArgs e) { //创建 Excel Microsoft.Office.Interop.Excel.Application excel = new Microsoft.Office.Interop.Excel.Application(); //创建 2个 WorkSheet excel.SheetsInNewWorkbook = 2; //创建WorkBook excel.Workbooks.Add(); //获得第一个sheet Worksheet sheet = (Worksheet)excel.ActiveWorkbook.Worksheets[1]; //给当前的sheet设置名称 sheet.Name = "第一个工作表"; //读取数据表并保存到DataSet string sql = "select* FROM [Exam]"; SqlDataAdapter sqlDap = new SqlDataAdapter(sql, conn); System.Data.DataTable table = new System.Data.DataTable(); sqlDap.Fill(table); DataSet ds = new DataSet(); ds.Tables.Add(table); //循环 行 for (int rowCount = 0; rowCount < ds.Tables[0].Rows.Count; rowCount++) { //循环 列 for (int colCount = 0; colCount < ds.Tables[0].Columns.Count; colCount++) { Range range = excel.get_Range(excel.Cells[1, 1], excel.Cells[255, 223]); range.NumberFormatLocal = "@"; //填充单元格 内容 excel.Cells[rowCount + 2, colCount + 2] = ds.Tables[0].Rows[rowCount][colCount].ToString(); //MessageBox.Show(excel.Cells[rowCount + 1, colCount + 1].ToString()); } } //让 Excel 显示 //excel.Visible = true; excel.ActiveWorkbook.SaveCopyAs(@"D:\121.xlsx"); }