//ef匯出示例
var query = from u in orderquery
join pro in dbcontext.project on
u.projectno equals pro.projectno
join org in dbcontext.org on
u.orgno equals org.orgno into joinedempdept
from dept in joinedempdept.defaultifempty()
select new
;string filename = datetime.now.tostring("yyyymmddhhmmss") + ".xlsx";
string file = localpath + filename;
using (excelhelper excelhelper = new excelhelper(file))
//ef匯出示例2,sql直接匯出
try}
catch (exception ex)
//匯入示例
string file = "c:\\data\\模板.xlsx";
using (excelhelper excelhelper = new excelhelper(file))
}
using npoi.hssf.usermodel;
using npoi.ss.usermodel;
using npoi.xssf.usermodel;
using system;
using system.collections.generic;
using system.componentmodel;
using system.data;
using system.diagnostics;
using system.io;
using system.linq;
using system.text;
using system.threading.tasks;
namespace yfapicommon.lib
/// /// 將datatable資料匯入到excel中
///
/// 要匯入的資料
/// datatable的列名是否要匯入
/// 要匯入的excel的sheet的名稱
/// 匯入資料行數(包含列名那一行)
public int datatabletoexcel(datatable data, string sheetname, bool iscolumnwritten)
else
if (iscolumnwritten == true) //寫入datatable的列名
count = 1;
}else
for (i = 0; i < data.rows.count; ++i)
++count;
}workbook.write(fs); //寫入到excel
return count;
}catch (exception ex)
}/// /// 將list資料匯入到excel中
///
/// 要匯入的資料
/// 要匯入的excel的sheet的名稱
/// 匯入資料行數(包含列名那一行)
public int listtoexcel(listdata, string sheetname)
else
propertydescriptorcollection properties = typedescriptor.getproperties(typeof(t));
irow row0 = sheet.createrow(0);
for (int i = 0; i < properties.count; i++)
int count = 1;
object values = new object[properties.count];
foreach (t item in data)
++count;
}workbook.write(fs); //寫入到excel
return count;
}catch (exception ex)
}/// /// 將excel中的資料匯入到datatable中
///
/// excel工作薄sheet的名稱
/// 第一行是否是datatable的列名
/// 返回的datatable
public datatable exceltodatatable(string sheetname, bool isfirstrowcolumn)
}else
if (sheet != null)}}
startrow = sheet.firstrownum + 1;
}else
//最後一列的標號
int rowcount = sheet.lastrownum;
for (int i = startrow; i <= rowcount; ++i)
data.rows.add(datarow);}}
return data;
}catch (exception ex)
}internal void listtoexcel(listlist, string v)
public void dispose()
protected virtual void dispose(bool disposing)
fs = null;
disposed = true;}}
}}
idea導包都報錯 python 導包
python 導包 python語言的使用者對導包應該不會陌生,下面我們就一起看一下python中有哪些到爆方式 1 import 直接使用import進行導包是一種很常見的方式,每次可以匯入乙個或多個包,直接使用import導包相當於是匯入了這個模組的整體,這個模組包含的所有物件都可以呼叫,但是要...
oralce導指令碼
用命令匯出 dmp c users administrator exp cms cms 10.196.149.11 orcl owner cms file d dmp 1 將資料庫sampledb完全匯出,使用者名稱system 密碼manager 匯出到e sampledb.dmp中 exp sy...
Python requirement 匯入匯出包
在使用python的時候,需要把安裝的package通過requirements.txt匯出來,乙個命令便可部署新環境。requirements.txt,是用於記錄所有依賴包及其精確的版本號。自動生成requirement.txt命令 pip freeze requirements.txt執行成功後...