c#使用aspose.cells 从datatable导出数据到excel

string json=value.Value;
DataTable dt=Utils.JsonDataTableConvert.ToDataTable(json);

string fileName = tableTemplate.Name + ".xls";
string savePath = Server.MapPath("~/Upload/TempExcelDownLoad/" + fileName);

Workbook book = new Workbook();
Worksheet sheet = book.Worksheets[0];
Cells cells = sheet.Cells;

int Colnum = dt.Columns.Count;//表格列数
int Rownum = dt.Rows.Count;//表格行数

//生成行 列名行
for (int i = 0; i < Colnum; i++)
{
cells[0, i].PutValue(dt.Columns[i].ColumnName);
}

//生成数据行
for (int i = 0; i < Rownum; i++)
{
for (int k = 0; k < Colnum; k++)
{
cells[1 + i, k].PutValue(dt.Rows[i][k].ToString());
}
}

book.Save(savePath);
System.Threading.Thread.Sleep(400);
Response.AddHeader("Content-Disposition", "attachment;filename=" + Server.UrlEncode(fileName));
//Response.AddHeader("Content-Length", file.Length.ToString());
Response.WriteFile(savePath);
Response.End();

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