Excel导入导出数据库02

excel导入时还要保存字体、其背景颜色等信息时读取方法就要改变：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Data.OleDb;
using System.Data;
using Microsoft.Office.Interop.Excel;
using System.Reflection;
using System.Runtime.InteropServices;

namespace WinOrderAd
{
public class Excel
{
public string FilePath
{
get;
set;
}
public Dictionary<string, string> FiledNames
{
get;
set;
}
public Excel()
{
}

public DataSet ImportExcel()//若只需要知道数据就用此方法
{

try
{
string strConn;
if (Path.GetExtension(FilePath) == ".xlsx")
strConn = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + FilePath + ";Extended Properties=\"Excel 12.0;HDR=YES\"";
else
strConn = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + FilePath + ";Extended Properties='Excel 8.0;HDR=False;IMEX=1'";
OleDbConnection OleConn = new OleDbConnection(strConn);
OleConn.Open();
System.Data.DataTable table = OleConn.GetOleDbSchemaTable(System.Data.OleDb.OleDbSchemaGuid.Tables, null);
DataSet OleDsExcle = new DataSet();
for (int i = 0; i < table.Rows.Count; i++)
{
string tableName = table.Rows[i]["Table_Name"].ToString();
tableName = tableName.Replace("'", "");
if (tableName.EndsWith("$"))
{
string sql = "SELECT * FROM [" + tableName + "]";
OleDbDataAdapter OleDaExcel = new OleDbDataAdapter(sql, OleConn);
OleDaExcel.Fill(OleDsExcle, tableName);
OleConn.Close();
}
}
return OleDsExcle;
}
catch (Exception err)
{
throw err;
}
}

/// <summary>
/// 用Excel Com组件方式读取Excel内容到DataSet(兼容性较高)
/// </summary>
/// <param name="path"></param>
/// <returns></returns>
public DataSet ToDataTableEx()
{
Microsoft.Office.Interop.Excel.ApplicationClass excel = new Microsoft.Office.Interop.Excel.ApplicationClass();

excel.Visible = false;
excel.ScreenUpdating = false;
excel.DisplayAlerts = false;

excel.Workbooks.Add(FilePath);
Microsoft.Office.Interop.Excel.Worksheet worksheet = null;
Range rangecell = null;
DataSet ds = new DataSet();
try
{
//遍历Worksheets中的每张表
for (int i = 1; i <= excel.Worksheets.Count; i++)
{
//获得指定表
worksheet = (Microsoft.Office.Interop.Excel.Worksheet)excel.Worksheets[i];

System.Data.DataTable dt = new System.Data.DataTable();

//取表明赋值到dt TableName
dt.TableName = worksheet.Name;

worksheet.Columns.EntireColumn.AutoFit();

int row = worksheet.UsedRange.Rows.Count;
int col = worksheet.UsedRange.Columns.Count;

for (int c = 1; c <= col; c++)
{
dt.Columns.Add(new DataColumn((String)((Microsoft.Office.Interop.Excel.Range)worksheet.Cells[1, c]).Text));
}
//添加一样式列
dt.Columns.Add(new DataColumn("Style"));

for (int r = 2; r <= row; r++)
{
DataRow newRow = dt.NewRow();
for (int c = 1; c <= col; c++)
{
rangecell = (Microsoft.Office.Interop.Excel.Range)worksheet.Cells[r, c];
newRow[c - 1] = rangecell.Text;
if (c == 3)
{
//取信息的字体颜色与背景颜色
newRow[col] = rangecell.Font.Color + "|" + rangecell.Interior.Color;
}
}
dt.Rows.Add(newRow);
}
ds.Tables.Add(dt);
}
}
catch (Exception ex)
{
throw (ex);
}
finally
{
if (worksheet != null)
{
System.Runtime.InteropServices.Marshal.ReleaseComObject(worksheet);
worksheet = null;
System.Runtime.InteropServices.Marshal.ReleaseComObject(rangecell);
rangecell = null;
}
excel.Workbooks.Close();
excel.Quit();
int generation = System.GC.GetGeneration(excel);
if (excel != null)
{
System.Runtime.InteropServices.Marshal.ReleaseComObject(excel);
excel = null;
}
System.GC.Collect(generation);
}
return ds;
}

}
}

导出设置其样式

public void ExportExcel(string[] listTableName, string[] listColName, List<List<Ad>> resource, string exporFilePath)
{
List<Ad> list = null;
List<Ad> listresource = null;
Microsoft.Office.Interop.Excel.Application app =
new Microsoft.Office.Interop.Excel.ApplicationClass();

app.Visible = false;
app.ScreenUpdating = false;
app.DisplayAlerts = false;
Workbook wBook = app.Workbooks.Add(true);

InsertLinkWorksheet(app, wBook);

Worksheet wSheet = null;
Range rangeResource = null;
Range rangeContent = null;
Range rangeTitle = null;
//for (int k = 0; k < listList.Count; k++)
for (int k = listList.Count - 1; k >= 0; k--)
{
listresource = resource[k];//已排好的数据
wSheet = wBook.Sheets.Add(Missing.Value, Missing.Value, Missing.Value, Missing.Value) as Worksheet;
wSheet.Name = listTableName[k];

try
{
int resourcenum = listresource.Count;
if (resourcenum > 0)
{
for (int i = 0; i < resourcenum; i++)
{
wSheet.Cells[i + 2, 1] = (i + 1);
wSheet.Cells[i + 2, 2] = listresource[i].ID;
wSheet.Cells[i + 2, 3] = listresource[i].Info;
wSheet.Cells[i + 2, 4] = listresource[i].Format;
wSheet.Cells[i + 2, 5] = listresource[i].Times;
wSheet.Cells[i + 2, 6] = listresource[i].Attach;
wSheet.Cells[i + 2, 7] = listresource[i].Frequency;
wSheet.Cells[i + 2, 8] = listresource[i].Same;
wSheet.Cells[i + 2, 9] = listresource[i].Dif;
wSheet.Cells[i + 2, 10] = listresource[i].Balanced;

if (listresource[i].RowStyle.Split('|')[0] != "")
{
rangeResource = wSheet.get_Range(wSheet.Cells[i + 2, 1], wSheet.Cells[i + 2, 10]);
rangeResource.Font.Color = listresource[i].RowStyle.Split('|')[0];
rangeResource.Interior.Color = listresource[i].RowStyle.Split('|')[1];
}
}
}
int m = 0;
int col = listColName.Count();
for (m = 0; m < col; m++)
{
string headname = listColName[m];//单元格头部
wSheet.Cells[1, 1 + m] = headname;
}
//内容
rangeContent = wSheet.get_Range(wSheet.Cells[2, 1], wSheet.Cells[list.Count + resourcenum + 2 + 1, col]);
rangeContent.Borders.Color = System.Drawing.Color.Black.ToArgb();
//rangeContent.Interior.Color = 10092543;    //设置区域背景色
rangeContent.VerticalAlignment = -4108;//竖向居中
rangeContent.HorizontalAlignment = -4108;//横向居中
rangeContent.RowHeight = 18;
rangeContent.EntireColumn.AutoFit();//自动调整列宽
//标题
rangeTitle = wSheet.get_Range(wSheet.Cells[1, 1], wSheet.Cells[1, col]);
rangeTitle.Borders.Color = System.Drawing.Color.Black.ToArgb();
rangeTitle.Interior.Color = 65280;    //设置区域背景色
rangeTitle.VerticalAlignment = -4108;
rangeTitle.HorizontalAlignment = -4108;
rangeTitle.RowHeight = 18;
rangeTitle.EntireColumn.AutoFit();
//冻结首行
//rangeTitle.Select();
app.ActiveWindow.SplitColumn = 0;
app.ActiveWindow.SplitRow = 1;
app.ActiveWindow.FreezePanes = true;
//rangeTitle.Font.Bold = true;    //设置字体粗体。
}
catch (Exception err)
{
throw err;
}
finally
{

}
}
//设置禁止弹出保存和覆盖的询问提示框
app.DisplayAlerts = false;
app.AlertBeforeOverwriting = false;
((Worksheet)wBook.Worksheets["Sheet1"]).Delete();
try
{
wBook.Saved = true;
//保存工作簿
System.Reflection.Missing miss = System.Reflection.Missing.Value;
wBook.SaveAs(exporFilePath, miss, miss, miss, miss, miss, XlSaveAsAccessMode.xlNoChange, miss, miss, miss, miss, miss);
}
catch (Exception ex)
{
throw ex;
}

if (rangeResource != null)
{
System.Runtime.InteropServices.Marshal.ReleaseComObject(rangeResource);
System.Runtime.InteropServices.Marshal.ReleaseComObject(rangeContent);
System.Runtime.InteropServices.Marshal.ReleaseComObject(rangeTitle);
rangeResource = null;
rangeContent = null;
rangeTitle = null;
}

if (wSheet != null)
{
System.Runtime.InteropServices.Marshal.ReleaseComObject(wSheet);
wSheet = null;
}

if (wBook != null)
{
System.Runtime.InteropServices.Marshal.ReleaseComObject(wBook);
wBook = null;
}
app.Workbooks.Close();
app.Quit();
int generation = System.GC.GetGeneration(app);
if (app != null)
{
System.Runtime.InteropServices.Marshal.ReleaseComObject(app);
app = null;
}
GC.Collect(generation);
}

listTableName为多个sheet的名称

listColName为每页的列名

resource为sheet数据队列

exporFilePath为要保存的路径