1、引用Microsoft.Office.Interop.Excel.dll
2、引用命名空間、使用別名
- using System.Reflection;
- using Excel = Microsoft.Office.Interop.Excel;
public void ToExcel(string strTitle)
{
int nMax = 9;
int nMin = 4;
int rowCount = nMax - nMin + 1;//總行數
const int columnCount = 4;//總列數
//創建Excel對象
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;
////設置標題
//Excel.Range titleRange = worksheet.get_Range(worksheet.Cells[1, 1], worksheet.Cells[1, columnCount]);//選取單元格
//titleRange.Merge(true);//合並單元格
//titleRange.Value2 = strTitle; //設置單元格內文本
//titleRange.Font.Name = "宋體";//設置字體
//titleRange.Font.Size = 18;//字體大小
//titleRange.Font.Bold = false;//加粗顯示
//titleRange.HorizontalAlignment = Excel.XlHAlign.xlHAlignCenter;//水平居中
//titleRange.VerticalAlignment = Excel.XlVAlign.xlVAlignCenter;//垂直居中
//titleRange.Borders.LineStyle = Excel.XlLineStyle.xlContinuous;//設置邊框
//titleRange.Borders.Weight = Excel.XlBorderWeight.xlThin;//邊框常規粗細
//設置表頭
string[] strHead = new string[columnCount] { "序號", "范圍", "分組1", "分組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;//獲取表頭單元格
Excel.Range headRange = worksheet.Cells[1, i + 1] as Excel.Range;//獲取表頭單元格,不用標題則從1開始
headRange.Value2 = strHead[i];//設置單元格文本
headRange.Font.Name = "宋體";//設置字體
headRange.Font.Size = 12;//字體大小
headRange.Font.Bold = false;//加粗顯示
headRange.HorizontalAlignment = Excel.XlHAlign.xlHAlignCenter;//水平居中
headRange.VerticalAlignment = Excel.XlVAlign.xlVAlignCenter;//垂直居中
headRange.ColumnWidth = columnWidth[i];//設置列寬
// headRange.Borders.LineStyle = Excel.XlLineStyle.xlContinuous;//設置邊框
// headRange.Borders.Weight = Excel.XlBorderWeight.xlThin;//邊框常規粗細
}
//設置每列格式
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]);//不用標題則從第二行開始
contentRange.HorizontalAlignment = Excel.XlHAlign.xlHAlignCenter;//水平居中
contentRange.VerticalAlignment = Excel.XlVAlign.xlVAlignCenter;//垂直居中
//contentRange.Borders.LineStyle = Excel.XlLineStyle.xlContinuous;//設置邊框
// contentRange.Borders.Weight = Excel.XlBorderWeight.xlThin;//邊框常規粗細
contentRange.WrapText = true;//自動換行
contentRange.NumberFormatLocal = "@";//文本格式
}
//填充數據
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);
}
//設置Excel可見
excelApp.Visible = true;
}
寫入按鈕函數:
- private void button1_Click(object sender, EventArgs e)
- {
- ToExcel("方式3");
- }
結果:
4.讀取excel
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;
// 以只讀的形式打開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);
//取得第一個工作薄
Excel.Worksheet ws = (Excel.Worksheet)wb.Worksheets.get_Item(1);
//取得總記錄行數 (包括標題列)
int rowsint = ws.UsedRange.Cells.Rows.Count; //得到行數
//int columnsint = mySheet.UsedRange.Cells.Columns.Count;//得到列數
//取得數據范圍區域 (不包括標題列)
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;
//將新值賦給一個數組
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();//沒有更好的方法,只有殺掉進程
}
GC.Collect();
}
讀取按鈕代碼:
- private void button1_Click(object sender, EventArgs e)
- {
- if (openFileDialog.ShowDialog() == DialogResult.OK)
- {
- OpenExcel(openFileDialog.FileName);
- }
- }
結果;
添加一個opendiog用於選擇要讀取的excel
命名空間
- using System.Diagnostics;
讀取函數