利用 AdventureWorks2014 當成資料來源,要把個部門員工匯出至 Excel 內且一個部門要單獨在一個 Sheet 內。
參考
加入 Microsoft.Office.Interop.Excel 和 System.Configuration
專案和 Layout
Store Procedure
USE [AdventureWorks2014]
GO
CREATE PROCEDURE dbo.GetDepartment
AS
BEGIN
SELECT
DepartmentID AS DepNO ,
Name AS DepName
FROM [HumanResources].[Department]
ORDER BY DepNO
END
GO
USE [AdventureWorks2014]
GO
CREATE PROCEDURE dbo.GetEmployee (@DepNO smallint)
AS
BEGIN
SELECT
D.DepartmentID AS DepNO ,
D.Name AS DepName ,
P.BusinessEntityID AS EmpNO,
CONCAT(P.FirstName , ' - ' , P.LastName) AS EmpName ,
E.jobTitle ,
E.HireDate ,
E.BirthDate
FROM [HumanResources].[Employee] AS E
JOIN [Person].[Person] AS P ON E.BusinessEntityID = P.BusinessEntityID
JOIN [HumanResources].[EmployeeDepartmentHistory] AS H ON E.BusinessEntityID = H.BusinessEntityID
JOIN [HumanResources].[Department] AS D ON H.DepartmentID = D.DepartmentID
WHERE H.EndDate IS NULL
AND D.DepartmentID = @DepNO
ORDER BY DepNO , EmpNO
END
GO
App.config
把連線字串放在裡面
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5" />
</startup>
<connectionStrings>
<add name="default" connectionString="Data Source=InstanceName;Initial Catalog=AdventureWorks2014;Integrated Security=True" providerName="System.Data.SqlClient"/>
</connectionStrings>
</configuration>
C# Code
using System.Configuration;
using System.Data.SqlClient;
using Excel = Microsoft.Office.Interop.Excel;
namespace Data2ExcelSheet
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void btnExcel_Click(object sender, EventArgs e)
{
SaveFileDialog save = new SaveFileDialog();
save.InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.Desktop);
save.FileName = "Excel Export demo";
save.Filter = "*.xlsx|*.xlsx";
if (save.ShowDialog() != DialogResult.OK) return;
DataTable Department = GetDepartment();
Excel.Application xls = new Excel.Application();
try
{
// 設定新增 WorkBook 時,會有幾個 sheet
xls.SheetsInNewWorkbook = Department.Rows.Count;
Excel.Workbook book = xls.Workbooks.Add();
int index, DepNO;
string DepName;
Excel.Worksheet sheet;
foreach (DataRow row in Department.Rows)
{
DepNO = Convert.ToInt16(row["DepNO"]);
DepName = row["DepName"].ToString();
index = Department.Rows.IndexOf(row) + 1;
sheet = (Excel.Worksheet)xls.Worksheets[index];
sheet.Name = DepName;
Data2Sheet(sheet, GetEmployee(DepNO));
}
book.SaveAs(save.FileName);
}
catch (Exception)
{
throw;
}
finally
{
xls.Quit();
}
}
private void Data2Sheet(Excel.Worksheet sheet, DataTable dt)
{
int rowindex, colindex;
foreach (DataRow row in dt.Rows)
{
rowindex = dt.Rows.IndexOf(row) + 1;
foreach (DataColumn col in dt.Columns)
{
colindex = dt.Columns.IndexOf(col) + 1;
sheet.Cells[rowindex, colindex] = row[col].ToString();
}
}
}
private DataTable GetEmployee(int DepNO)
{
try
{
string ConnString = ConfigurationManager.ConnectionStrings["default"].ToString();
using (SqlConnection conn = new SqlConnection(ConnString))
{
SqlCommand cmd = new SqlCommand();
cmd.Connection = conn;
cmd.CommandText = "GetEmployee";
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@DepNO", DepNO);
DataTable dt = new DataTable();
SqlDataAdapter da = new SqlDataAdapter(cmd);
da.Fill(dt);
return dt;
}
}
catch (Exception)
{
throw;
}
}
private DataTable GetDepartment()
{
try
{
string ConnString = ConfigurationManager.ConnectionStrings["default"].ToString();
using (SqlConnection conn = new SqlConnection(ConnString))
{
SqlCommand cmd = new SqlCommand();
cmd.Connection = conn;
cmd.CommandText = "GetDepartment";
cmd.CommandType = CommandType.StoredProcedure;
DataTable dt = new DataTable();
SqlDataAdapter da = new SqlDataAdapter(cmd);
da.Fill(dt);
return dt;
}
}
catch (Exception)
{
throw;
}
}
}
}
匯出資料