基本操作类
public class ExcelUtil
{
public void ReleaseCOM(object pObj)//释放资源
{
try
{
System.Runtime.InteropServices.Marshal.ReleaseComObject(pObj);
}
catch
{
throw new Exception("释放资源时发生错误！");
}
finally
{
pObj = null;
}
}
public ExcelUtil(string filePath)
{
this.filePath = filePath;
app = new Microsoft.Office.Interop.Excel.Application();//打开一个Excel应用
if (app == null)
{
return;
}
wbs = app.Workbooks;
wb = wbs.Add(filePath);
shs = wb.Sheets;
int sheetNumber = shs.Count;
for (int i = 1; i <= sheetNumber; i++)
{
_Worksheet sh = (_Worksheet)shs.get_Item(i);
this.ShList.Add(sh);
}
}
/// <summary>
/// 保存文件
/// </summary>
public ExcelUtil(string filePath, int addSheet)
{
this.filePath = filePath;
app = new Microsoft.Office.Interop.Excel.Application();//打开一个Excel应用
if (app == null)
{
return;
}
wbs = app.Workbooks;
wb = wbs.Add(filePath);
shs = wb.Sheets;
int sheetNumber = shs.Count;
int addSheetCount = addSheet - sheetNumber;
if (addSheetCount > 0)
{
for (int i = 0; i < addSheetCount; i++)
{
var sheet = (_Worksheet)shs.Add(Missing.Value, Missing.Value, Missing.Value, Missing.Value);
}
}
int currentSheetNumber = shs.Count;
for (int i = 1; i <= currentSheetNumber; i++)
{
_Worksheet sh = (_Worksheet)shs.get_Item(i);
this.ShList.Add(sh);
}
}
/// <summary>
/// 保存文件
/// </summary>
public void save()
{
if (filePath != null)
{
FileInfo old = new FileInfo(filePath);
if (old.Exists)
{
File.Delete(filePath);
}
wb.SaveAs(filePath, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlExclusive, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing);
foreach (_Worksheet inst in shList)
{
ReleaseCOM(inst);
}
ReleaseCOM(shs);
ReleaseCOM(wb);
ReleaseCOM(wbs);
app.Quit();
ReleaseCOM(app);
}
}
/// <summary>
/// 杀掉进程的方式保存excel。
/// 用来解决正常保存时出现的公式异常问题。
/// </summary>
public void saveByKillProcess()
{
if (filePath != null)
{
try
{
FileInfo old = new FileInfo(filePath);
if (old.Exists)
{
File.Delete(filePath);
}
wb.SaveAs(filePath, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlExclusive, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing);
foreach (_Worksheet inst in shList)
{
ReleaseCOM(inst);
}
ReleaseCOM(shs);
ReleaseCOM(wb);
ReleaseCOM(wbs);
KillExcel(app);
}
catch (System.Exception e)
{
logger.Debug(e.Message);
}
}
}
/// <summary>
/// 合并Excel单元格
/// </summary>
/// <param name="ws">sheet页</param>
/// <param name="str">要合并单元格的左上角的单元格列号A</param>
/// <param name="i">要合并的单元格的左上角的单元格行号2</param>
/// <param name="str3">要合并单元格的右下角的单元格列号B</param>
/// <param name="i">要合并的单元格的右下角的单元格行号2</param>
/// <param name="j">表格最后一行的行号</param>
/// <returns>单元格</returns>
public static Range CombineExcel(_Worksheet ws, int colLeft, int rowUp, int colRight, int rowDown)
{
try
{
string str1 = GetColStrFromInt(colLeft) + rowUp;
string str2 = GetColStrFromInt(colRight) + rowDown;
Range range = ws.get_Range(str1, str2);
range.Merge(0);
range.HorizontalAlignment = XlHAlign.xlHAlignCenter;
range.Font.Underline = false;
range.WrapText = true;
// range.EntireColumn.AutoFit();
range.Borders.LineStyle = 1;
return range;
}
catch (Exception ex)
{
logger.Error(ex.Message);
return null;
}
}
/// <summary>
/// 传入列号得到对应的列名称，从1开始，1代表第A列
/// </summary>
/// <param name="col">列号</param>
/// <returns></returns>
public static string GetColStrFromInt(int col)
{
col = col + 'A' - 1;
string colStr = "";
if (col > (int)'Z')
{
colStr = Convert.ToChar((col - 90 - 1) / 26 + 'A').ToString() +
Convert.ToChar((col - 90 - 1) % 26 + 'A').ToString();
return colStr;
}
else
return Convert.ToChar(col).ToString();
}
[DllImport("User32.dll", CharSet = CharSet.Auto)]
public static extern int GetWindowThreadProcessId(IntPtr hwnd, out int ID);
private void KillExcel(Microsoft.Office.Interop.Excel.Application excel)
{
IntPtr t = new IntPtr(excel.Hwnd); //得到这个句柄，具体作用是得到这块内存入口
int k = 0;
GetWindowThreadProcessId(t, out k); //得到本进程唯一标志k
System.Diagnostics.Process p = System.Diagnostics.Process.GetProcessById(k); //得到对进程k的引用
p.Kill(); //关闭进程k
}
private Microsoft.Office.Interop.Excel.Application app;
private Workbooks wbs;
private _Workbook wb;
private Sheets shs;
private List<_Worksheet> shList = new List<_Worksheet>();
public List<_Worksheet> ShList
{
get
{
return shList;
}
set
{
shList = value;
}
}
private string filePath;
protected readonly static log4net.ILog logger = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
}
得到一个合并range插入数据
private Range GetCurrentRange(_Worksheet ws, int colLeft, int rowUp, int colRight, int rowDown, string result)
{
Range currentRange = null;
currentRange = ExcelUtil.CombineExcel(ws, colLeft, rowUp, colRight, rowDown);
currentRange.Value2 = result;插入结果
currentRange.Borders.LineStyle = 0;//边框线
currentRange.Font.ColorIndex = 3;//插入颜色
currentRange.Font.Bold = true;//加粗
currentRange.ColumnWidth = 100;//控制列宽
currentRange.HorizontalAlignment = XlHAlign.xlHAlignLeft;//文字的位置
currentRange.Borders[XlBordersIndex.xlEdgeBottom].Weight = XlBorderWeight.xlThick;//下边框加粗
var range = ws.Cells;//选中整个文档
range.Interior.ColorIndex = 2;//填充背景颜色
return currentRange;
}
创建超链接
/// <summary>
/// Inserts the catalogue.目录超链接
/// </summary>
/// <param name="ws">The ws.</param>
/// <param name="colLeft">The col left.</param>
/// <param name="rowUp">The row up.</param>
/// <param name="colRight">The col right.</param>
/// <param name="rowDown">The row down.</param>
/// <param name="result">The result.</param>
/// <param name="colWidth">Width of the col.</param>
/// <param name="sheet">The sheet.</param>
private void InsertCatalogue(_Worksheet ws, int colLeft, int rowUp, int colRight, int rowDown, string result, string sheet)
{
var currentRange = this.GetCurrentRange(ws, colLeft, rowUp, colRight, rowDown, result);
currentRange.Font.ColorIndex = 5;
currentRange.Font.Bold = true;
string hyperlink = "#" + sheet + "!" + ExcelUtil.GetColStrFromInt(colLeft) + rowUp;
ws.Hyperlinks.Add(currentRange, hyperlink, System.Reflection.Missing.Value, System.Reflection.Missing.Value, System.Reflection.Missing.Value);
currentRange.Font.Underline = false;
currentRange.HorizontalAlignment = XlHAlign.xlHAlignLeft;
}
对数据画统计图
private void Chart(_Worksheet ws, int startRow, Catalogue catalogue)
{
Range chartRange;
ChartObjects xlCharts = (ChartObjects)ws.ChartObjects(Type.Missing);
ChartObject myChart = (ChartObject)xlCharts.Add(250, 20, 600, 300);
Chart chartPage = myChart.Chart;
string title = "标题名字";
this.InsertResult(ws, 6, 25, 6, 25, title);
string lowRange = ws.get_Range("K31", Type.Missing).Value2.ToString();
string hightRange = ws.get_Range("L31", Type.Missing).Value2.ToString();
double temp = 0;
bool isAllLine = false;
string chartRangeSelect = "I31:I" + startRow + ",K31:K" + startRow + ",L31:L" + startRow;
if (double.TryParse(lowRange, out temp) && double.TryParse(hightRange, out temp))
{
isAllLine = true;
}
else
{
if (!double.TryParse(lowRange, out temp))
{
chartRangeSelect = "I31:I" + startRow + ",L31:L" + startRow;
}
else
{
chartRangeSelect = "I31:I" + startRow + ",K31:K" + startRow;
}
}
chartRange = ws.get_Range(chartRangeSelect, Type.Missing);
chartPage.ChartWizard(chartRange, XlChartType.xlConeCol, Type.Missing, XlRowCol.xlColumns, Type.Missing, Type.Missing, true, title, Type.Missing, Type.Missing, Type.Missing);
chartPage.SetSourceData(chartRange, XlRowCol.xlColumns);
Series oSeries1 = (Series)chartPage.SeriesCollection(2);
oSeries1.ChartType = XlChartType.xlLine;
oSeries1.Border.ColorIndex = 3;
Series oSeries = (Series)chartPage.SeriesCollection(1);
oSeries.ChartType = XlChartType.xlLine;
oSeries.Border.ColorIndex = 5;
if (isAllLine)
{
Series oSeries2 = (Series)chartPage.SeriesCollection(3);
oSeries2.ChartType = XlChartType.xlLine;
oSeries2.Border.ColorIndex = 3;
}
chartPage.Legend.Delete();
Axis xAxis = (Axis)chartPage.Axes(XlAxisType.xlCategory, XlAxisGroup.xlPrimary);
xAxis.Delete();
var range = ws.Cells;
range.WrapText = false;
}