如何使用C#创建Excel电子表格而不需要在运行代码的计算机上安装Excel?
当前回答
您可以考虑使用XML Spreadsheet 2003格式创建文件。这是一种简单的XML格式,使用了一个文档化的模式。
其他回答
您可以使用此库创建格式良好的Excel文件:http://officehelper.codeplex.com/documentation参见以下示例:
using (ExcelHelper helper = new ExcelHelper(TEMPLATE_FILE_NAME, GENERATED_FILE_NAME))
{
helper.Direction = ExcelHelper.DirectionType.TOP_TO_DOWN;
helper.CurrentSheetName = "Sheet1";
helper.CurrentPosition = new CellRef("C3");
//the template xlsx should contains the named range "header"; use the command "insert"/"name".
helper.InsertRange("header");
//the template xlsx should contains the named range "sample1";
//inside this range you should have cells with these values:
//<name> , <value> and <comment>, which will be replaced by the values from the getSample()
CellRangeTemplate sample1 = helper.CreateCellRangeTemplate("sample1", new List<string> {"name", "value", "comment"});
helper.InsertRange(sample1, getSample());
//you could use here other named ranges to insert new cells and call InsertRange as many times you want,
//it will be copied one after another;
//even you can change direction or the current cell/sheet before you insert
//typically you put all your "template ranges" (the names) on the same sheet and then you just delete it
helper.DeleteSheet("Sheet3");
}
示例如下:
private IEnumerable<List<object>> getSample()
{
var random = new Random();
for (int loop = 0; loop < 3000; loop++)
{
yield return new List<object> {"test", DateTime.Now.AddDays(random.NextDouble()*100 - 50), loop};
}
}
我最近刚刚使用了FlexCel.NET,发现它是一个优秀的库!我对太多的软件产品不这么说。在这里进行整个销售宣传没有意义,你可以阅读他们网站上的所有功能。
这是一个商业产品,但如果你购买它,你会得到完整的源代码。所以我想,如果你真的想,你可以将它编译成你的程序集。否则,它只是一个额外的程序集来xcopy-没有配置或安装或类似的东西。
我认为,如果没有第三方库,您将找不到任何方法来做到这一点,因为.NET框架显然没有内置的支持,OLE自动化只是一个痛苦的世界。
在我的项目中,我使用一些.net库来提取Excel文件(.xls和.xlsx)
为了导出数据,我经常使用rdlc。
要修改我使用的excel文件(尝试设置空白单元格A15时的示例代码):
关闭的XML
//Closed XML
var workbook = new XLWorkbook(sUrlFile); // load the existing excel file
var worksheet = workbook.Worksheets.Worksheet(1);
worksheet.Cell("A15").SetValue("");
workbook.Save();
铁杆XL
string sUrlFile = "G:\\ReportAmortizedDetail.xls";
WorkBook workbook = WorkBook.Load(sUrlFile);
WorkSheet sheet = workbook.WorkSheets.First();
//Select cells easily in Excel notation and return the calculated value
sheet["A15"].First().Value = "";
sheet["A15"].First().FormatString = "";
workbook.Save();
workbook.Close();
workbook = null;
SpireXLS(当我尝试时,库会打印附加页,以提供我们使用试用库的信息
string sUrlFile = "G:\\ReportAmortizedDetail.xls";
Workbook workbook = new Workbook();
workbook.LoadFromFile(sUrlFile);
//Get the 1st sheet
Worksheet sheet = workbook.Worksheets[0];
//Specify the cell range
CellRange range = sheet.Range["A15"];
//Find all matched text in the range
CellRange[] cells = range.FindAllString("hi", false, false);
//Replace text
foreach (CellRange cell in range)
{
cell.Text = "";
}
//Save
workbook.Save();
Jet Oledb公司
//ExcelTool Class
public static int ExcelUpdateSheets(string path, string sWorksheetName, string sCellLocation, string sValue)
{
int iResult = -99;
String sConnectionString = @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + path + ";Extended Properties='Excel 8.0;HDR=NO'";
OleDbConnection objConn = new OleDbConnection(sConnectionString);
objConn.Open();
OleDbCommand objCmdSelect = new OleDbCommand("UPDATE [" + sWorksheetName + "$" + sCellLocation + "] SET F1=" + UtilityClass.ValueSQL(sValue), objConn);
objCmdSelect.ExecuteNonQuery();
objConn.Close();
return iResult;
}
用法:
ExcelTool.ExcelUpdateSheets(sUrlFile, "ReportAmortizedDetail", "A15:A15", "");
天冬氨酸
var workbook = new Aspose.Cells.Workbook(sUrlFile);
// access first (default) worksheet
var sheet = workbook.Worksheets[0];
// access CellsCollection of first worksheet
var cells = sheet.Cells;
// write HelloWorld to cells A1
cells["A15"].Value = "";
// save spreadsheet to disc
workbook.Save(sUrlFile);
workbook.Dispose();
workbook = null;
如果您从代码中创建数据表或数据网格视图,则可以使用此简单方法保存所有数据。不建议使用此方法,但它可以100%工作,即使您没有在计算机中安装MS Excel。
try
{
SaveFileDialog saveFileDialog1 = new SaveFileDialog();
saveFileDialog1.Filter = "Excel Documents (*.xls)|*.xls";
saveFileDialog1.FileName = "Employee Details.xls";
if (saveFileDialog1.ShowDialog() == DialogResult.OK)
{
string fname = saveFileDialog1.FileName;
StreamWriter wr = new StreamWriter(fname);
for (int i = 0; i <DataTable.Columns.Count; i++)
{
wr.Write(DataTable.Columns[i].ToString().ToUpper() + "\t");
}
wr.WriteLine();
//write rows to excel file
for (int i = 0; i < (DataTable.Rows.Count); i++)
{
for (int j = 0; j < DataTable.Columns.Count; j++)
{
if (DataTable.Rows[i][j] != null)
{
wr.Write(Convert.ToString(getallData.Rows[i][j]) + "\t");
}
else
{
wr.Write("\t");
}
}
//go to next line
wr.WriteLine();
}
//close file
wr.Close();
}
}
catch (Exception)
{
MessageBox.Show("Error Create Excel Sheet!");
}
下面是使用LINQ to XML完成此操作的方法,并提供示例代码:
用LINQ to XML快速导入和导出Excel数据
它有点复杂,因为您必须导入名称空间等等,但它确实可以避免任何外部依赖。
(当然,它是VB.NET,而不是C#,但您可以始终在自己的项目中隔离VB.NET内容,以使用XML文字,并使用C#执行其他所有操作。)