首页 > 代码库 > c#操作excel方式三:使用Microsoft.Office.Interop.Excel.dll读取Excel文件
c#操作excel方式三:使用Microsoft.Office.Interop.Excel.dll读取Excel文件
1、引用Microsoft.Office.Interop.Excel.dll
2、引用命名空间、使用别名
[csharp] view plaincopy
- using System.Reflection;
- using Excel = Microsoft.Office.Interop.Excel;
3.写入excel
写入函数
[csharp] view plaincopy
- public void ToExcel(string strTitle)
- {
- int nMax = 9;
- int nMin = 4;
- int rowCount = nMax - nMin + 1;//总行数
- const int columnCount = 4;//总列数
- //创建Excel对象
- Excel.Application excelApp = new Excel.ApplicationClass();
- //新建工作簿
- Excel.Workbook workBook = excelApp.Workbooks.Add(true);
- //新建工作表
- Excel.Worksheet worksheet = workBook.ActiveSheet as Excel.Worksheet;
- ////设置标题
- //Excel.Range titleRange = worksheet.get_Range(worksheet.Cells[1, 1], worksheet.Cells[1, columnCount]);//选取单元格
- //titleRange.Merge(true);//合并单元格
- //titleRange.Value2 = strTitle; //设置单元格内文本
- //titleRange.Font.Name = "宋体";//设置字体
- //titleRange.Font.Size = 18;//字体大小
- //titleRange.Font.Bold = false;//加粗显示
- //titleRange.HorizontalAlignment = Excel.XlHAlign.xlHAlignCenter;//水平居中
- //titleRange.VerticalAlignment = Excel.XlVAlign.xlVAlignCenter;//垂直居中
- //titleRange.Borders.LineStyle = Excel.XlLineStyle.xlContinuous;//设置边框
- //titleRange.Borders.Weight = Excel.XlBorderWeight.xlThin;//边框常规粗细
- //设置表头
- string[] strHead = new string[columnCount] { "序号", "范围", "分组1", "分组2" };
- int[] columnWidth = new int[4] { 8, 16, 8, 10 };
- for (int i = 0; i < columnCount; i++)
- {
- //Excel.Range headRange = worksheet.Cells[2, i + 1] as Excel.Range;//获取表头单元格
- Excel.Range headRange = worksheet.Cells[1, i + 1] as Excel.Range;//获取表头单元格,不用标题则从1开始
- headRange.Value2 = strHead[i];//设置单元格文本
- headRange.Font.Name = "宋体";//设置字体
- headRange.Font.Size = 12;//字体大小
- headRange.Font.Bold = false;//加粗显示
- headRange.HorizontalAlignment = Excel.XlHAlign.xlHAlignCenter;//水平居中
- headRange.VerticalAlignment = Excel.XlVAlign.xlVAlignCenter;//垂直居中
- headRange.ColumnWidth = columnWidth[i];//设置列宽
- // headRange.Borders.LineStyle = Excel.XlLineStyle.xlContinuous;//设置边框
- // headRange.Borders.Weight = Excel.XlBorderWeight.xlThin;//边框常规粗细
- }
- //设置每列格式
- for (int i = 0; i < columnCount; i++)
- {
- //Excel.Range contentRange = worksheet.get_Range(worksheet.Cells[3, i + 1], worksheet.Cells[rowCount - 1 + 3, i + 1]);
- Excel.Range contentRange = worksheet.get_Range(worksheet.Cells[2, i + 1], worksheet.Cells[rowCount - 1 + 3, i + 1]);//不用标题则从第二行开始
- contentRange.HorizontalAlignment = Excel.XlHAlign.xlHAlignCenter;//水平居中
- contentRange.VerticalAlignment = Excel.XlVAlign.xlVAlignCenter;//垂直居中
- //contentRange.Borders.LineStyle = Excel.XlLineStyle.xlContinuous;//设置边框
- // contentRange.Borders.Weight = Excel.XlBorderWeight.xlThin;//边框常规粗细
- contentRange.WrapText = true;//自动换行
- contentRange.NumberFormatLocal = "@";//文本格式
- }
- //填充数据
- for (int i = nMin; i <= nMax; i++)
- {
- int k = i - nMin;
- //excelApp.Cells[k + 3, 1] = string.Format("{0}", k + 1);
- //excelApp.Cells[k + 3, 2] = string.Format("{0}-{1}", i - 0.5, i + 0.5);
- //excelApp.Cells[k + 3, 3] = string.Format("{0}", k + 3);
- //excelApp.Cells[k + 3, 4] = string.Format("{0}", k + 4);
- excelApp.Cells[k + 2, 1] = string.Format("{0}", k + 1);
- excelApp.Cells[k + 2, 2] = string.Format("{0}-{1}", i - 0.5, i + 0.5);
- excelApp.Cells[k + 2, 3] = string.Format("{0}", k + 3);
- excelApp.Cells[k + 2, 4] = string.Format("{0}", k + 4);
- }
- //设置Excel可见
- excelApp.Visible = true;
- }
写入按钮函数:
[csharp] view plaincopy
- private void button1_Click(object sender, EventArgs e)
- {
- ToExcel("方式3");
- }
结果:
4.读取excel
添加一个opendiog用于选择要读取的excel
命名空间
[csharp] view plaincopy
- using System.Diagnostics;
读取函数:
[csharp] view plaincopy
- private void OpenExcel(string strFileName)
- {
- object missing = System.Reflection.Missing.Value;
- Excel.Application excel = new Excel.ApplicationClass();//lauch excel application
- if (excel == null)
- {
- this.label1.Text="Can‘t access excel";
- }
- else
- {
- excel.Visible = false; excel.UserControl = true;
- // 以只读的形式打开EXCEL文件
- Excel.Workbook wb = excel.Application.Workbooks.Open(strFileName, missing, true, missing, missing, missing,
- missing, missing, missing, true, missing, missing, missing, missing, missing);
- //取得第一个工作薄
- Excel.Worksheet ws = (Excel.Worksheet)wb.Worksheets.get_Item(1);
- //取得总记录行数 (包括标题列)
- int rowsint = ws.UsedRange.Cells.Rows.Count; //得到行数
- //int columnsint = mySheet.UsedRange.Cells.Columns.Count;//得到列数
- //取得数据范围区域 (不包括标题列)
- Excel.Range rng1 = ws.Cells.get_Range("A2", "A" + rowsint);
- Excel.Range rng2 = ws.Cells.get_Range("B2", "B" + rowsint);
- Excel.Range rng3 = ws.Cells.get_Range("C2", "C" + rowsint);
- Excel.Range rng4 = ws.Cells.get_Range("D2", "D" + rowsint);
- object[,] arry1 = (object[,])rng1.Value2; //get range‘s value
- object[,] arry2 = (object[,])rng2.Value2;
- object[,] arry3 = (object[,])rng3.Value2; //get range‘s value
- object[,] arry4 = (object[,])rng4.Value2;
- //将新值赋给一个数组
- string[,] arry = new string[rowsint - 1, 4];
- //for (int i = 1; i <= rowsint - 1; i++)
- for (int i = 1; i <= rowsint - 2; i++)
- {
- arry[i - 1, 0] = arry1[i, 1].ToString();
- arry[i - 1, 1] = arry2[i, 1].ToString();
- arry[i - 1, 2] = arry3[i, 1].ToString();
- arry[i - 1, 3] = arry4[i, 1].ToString();
- }
- string a = "";
- for (int i = 0; i <= rowsint - 3; i++)
- {
- a += arry[i, 0] + "|" + arry[i, 1] + "|" + arry[i, 2] + "|" + arry[i, 3]+"\n";
- }
- this.label1.Text=a;
- }
- excel.Quit(); excel = null;
- Process[] procs = Process.GetProcessesByName("excel");
- foreach (Process pro in procs)
- {
- pro.Kill();//没有更好的方法,只有杀掉进程
- }
- GC.Collect();
- }
读取按钮代码:
[csharp] view plaincopy
- private void button1_Click(object sender, EventArgs e)
- {
- if (openFileDialog.ShowDialog() == DialogResult.OK)
- {
- OpenExcel(openFileDialog.FileName);
- }
- }
结果;
c#操作excel方式三:使用Microsoft.Office.Interop.Excel.dll读取Excel文件
声明:以上内容来自用户投稿及互联网公开渠道收集整理发布,本网站不拥有所有权,未作人工编辑处理,也不承担相关法律责任,若内容有误或涉及侵权可进行投诉: 投诉/举报 工作人员会在5个工作日内联系你,一经查实,本站将立刻删除涉嫌侵权内容。