OA项目之操作EXCEL导出数据报表的类
/// <summary>
/// 操作EXCEL导出数据报表的类
/// Copyright (C) Maticsoft
/// </summary>
public class DataToExcel
{
public DataToExcel()
{
}
#region 操作EXCEL的一个类(需要Excel.dll支持)
private int titleColorindex = 15;
/// <summary>
/// 标题背景色
/// </summary>
public int TitleColorIndex
{
set { titleColorindex = value; }
get { return titleColorindex; }
}
private DateTime beforeTime; //Excel启动之前时间
private DateTime afterTime; //Excel启动之后时间
#region 创建一个Excel示例
/// <summary>
/// 创建一个Excel示例
/// </summary>
public void CreateExcel()
{
Excel.Application excel = new Excel.Application();
excel.Application.Workbooks.Add(true);
excel.Cells[1, 1] = "第1行第1列";
excel.Cells[1, 2] = "第1行第2列";
excel.Cells[2, 1] = "第2行第1列";
excel.Cells[2, 2] = "第2行第2列";
excel.Cells[3, 1] = "第3行第1列";
excel.Cells[3, 2] = "第3行第2列";
//保存
excel.ActiveWorkbook.SaveAs("./tt.xls", XlFileFormat.xlExcel9795, null, null, false, false, Excel.XlSaveAsAccessMode.xlNoChange, null, null, null, null, null);
//打开显示
excel.Visible = true;
// excel.Quit();
// excel=null;
// GC.Collect();//垃圾回收
}
#endregion
#region 将DataTable的数据导出显示为报表
/// <summary>
/// 将DataTable的数据导出显示为报表
/// </summary>
/// <param name="dt">要导出的数据</param>
/// <param name="strTitle">导出报表的标题</param>
/// <param name="FilePath">保存文件的路径</param>
/// <returns></returns>
public string OutputExcel(System.Data.DataTable dt, string strTitle, string FilePath)
{
beforeTime = DateTime.Now;
Excel.Application excel;
Excel._Workbook xBk;
Excel._Worksheet xSt;
int rowIndex = 4;
int colIndex = 1;
excel = new Excel.ApplicationClass();
xBk = excel.Workbooks.Add(true);
xSt = (Excel._Worksheet)xBk.ActiveSheet;
//取得列标题
foreach (DataColumn col in dt.Columns)
{
colIndex++;
excel.Cells[4, colIndex] = col.ColumnName;
//设置标题格式为居中对齐
xSt.get_Range(excel.Cells[4, colIndex], excel.Cells[4, colIndex]).Font.Bold = true;
xSt.get_Range(excel.Cells[4, colIndex], excel.Cells[4, colIndex]).HorizontalAlignment = Excel.XlVAlign.xlVAlignCenter;
xSt.get_Range(excel.Cells[4, colIndex], excel.Cells[4, colIndex]).Select();
xSt.get_Range(excel.Cells[4, colIndex], excel.Cells[4, colIndex]).Interior.ColorIndex = titleColorindex;//19;//设置为浅黄色，共计有56种
}
//取得表格中的数据
foreach (DataRow row in dt.Rows)
{
rowIndex++;
colIndex = 1;
foreach (DataColumn col in dt.Columns)
{
colIndex++;
if (col.DataType == System.Type.GetType("System.DateTime"))
{
excel.Cells[rowIndex, colIndex] = (Convert.ToDateTime(row[col.ColumnName].ToString())).ToString("yyyy-MM-dd");
xSt.get_Range(excel.Cells[rowIndex, colIndex], excel.Cells[rowIndex, colIndex]).HorizontalAlignment = Excel.XlVAlign.xlVAlignCenter;//设置日期型的字段格式为居中对齐
}
else
