最近，做了幾個月的WinForm，接觸了一些進程、句柄方面的知識。於是試着解決一下，沒想到成功了，創建的Excel進程被成功Kill掉了，而其它Excel進程則相安無事。
關鍵代碼：
查看源代碼打印?public void KillSpecialExcel()
{
try
{
if (m_objExcel != null)
{
int lpdwProcessId;
GetWindowThreadProcessId(new IntPtr(m_objExcel.Hwnd), out lpdwProcessId);
System.Diagnostics.Process.GetProcessById(lpdwProcessId).Kill();
}
}
catch (Exception ex)
{
Console.WriteLine("Delete Excel Process Error:" + ex.Message);
}
}
操作生成Excel的全部代碼：
查看源代碼打印?using System;
using System.Collections.Generic;
using System.Text;
using System.Reflection;
using System.Runtime.InteropServices;
using System.Drawing;
namespace VeryCodes.Common.MyExcel
{
///
/// ExcelClass 的摘要說明。
///
public class MSExcel
{
///
/// 構建ExcelClass類
///
public MSExcel()
{
//別忘了需要添加Excel Library的引用
this.m_objExcel = new Microsoft.Office.Interop.Excel.Application();
}
///
/// 構建ExcelClass類
///
///
Excel.Application
public MSExcel(Microsoft.Office.Interop.Excel.Application objExcel)
{
this.m_objExcel = objExcel;
}
///
/// 列標號，Excel最大列數是256
///
private string[] ALists = new string[] {
"A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z",
"AA", "AB", "AC", "AD", "AE", "AF", "AG", "AH", "AI", "AJ", "AK", "AL", "AM", "AN", "AO", "AP", "AQ", "AR", "AS", "AT", "AU", "AV", "AW", "AX", "AY", "AZ",
"BA", "BB", "BC", "BD", "BE", "BF", "BG", "BH", "BI", "BJ", "BK", "BL", "BM", "BN", "BO", "BP", "BQ", "BR", "BS", "BT", "BU", "BV", "BW", "BX", "BY", "BZ",
"CA", "CB", "CC", "CD", "CE", "CF", "CG", "CH", "CI", "CJ", "CK", "CL", "CM", "CN", "CO", "CP", "CQ", "CR", "CS", "CT", "CU", "CV", "CW", "CX", "CY", "CZ",
"DA", "DB", "DC", "DD", "DE", "DF", "DG", "DH", "DI", "DJ", "DK", "DL", "DM", "DN", "DO", "DP", "DQ", "DR", "DS", "DT", "DU", "DV", "DW", "DX", "DY", "DZ",
"EA", "EB", "EC", "ED", "EE", "EF", "EG", "EH", "EI", "EJ", "EK", "EL", "EM", "EN", "EO", "EP", "EQ", "ER", "ES", "ET", "EU", "EV", "EW", "EX", "EY", "EZ",
"FA", "FB", "FC", "FD", "FE", "FF", "FG", "FH", "FI", "FJ", "FK", "FL", "FM", "FN", "FO", "FP", "FQ", "FR", "FS", "FT", "FU", "FV", "FW", "FX", "FY", "FZ",
"GA", "GB", "GC", "GD", "GE", "GF", "GG", "GH", "GI", "GJ", "GK", "GL", "GM", "GN", "GO", "GP", "GQ", "GR", "GS", "GT", "GU", "GV", "GW", "GX", "GY", "GZ",
"HA", "HB", "HC", "HD", "HE", "HF", "HG", "HH", "HI", "HJ", "HK", "HL", "HM", "HN", "HO", "HP", "HQ", "HR", "HS", "HT", "HU", "HV", "HW", "HX", "HY", "HZ",
"IA", "IB", "IC", "ID", "IE", "IF", "IG", "IH", "II", "IJ", "IK", "IL", "IM", "IN", "IO", "IP", "IQ", "IR", "IS", "IT", "IU", "IV"
};
///
/// 獲取描述區域的字符
///
///
///
///
public string GetAix(int x, int y)
{
if (x > 256) { return ""; }
string s = "";
s = s + ALists[x - 1].ToString();
s = s + y.ToString();
return s;
}
///
/// 給單元格賦值1
///
///
行號
///
列號
///
對齊（CENTER、LEFT、RIGHT）
///
值
public void setValue(int y, int x, string align, string text)
{
Microsoft.Office.Interop.Excel.Range range = sheet.get_Range(this.GetAix(x, y), miss);
range.set_Value(miss, text);
if (align.ToUpper() == "CENTER")
{
range.HorizontalAlignment = Microsoft.Office.Interop.Excel.XlHAlign.xlHAlignCenter;
}
if (align.ToUpper() == "LEFT")
{
range.HorizontalAlignment = Microsoft.Office.Interop.Excel.XlHAlign.xlHAlignLeft;
}
if (align.ToUpper() == "RIGHT")
{
range.HorizontalAlignment = Microsoft.Office.Interop.Excel.XlHAlign.xlHAlignRight;
}
}
///
/// 給單元格賦值2
///
///
行號
///
列號
///
值
public void setValue(int y, int x, string text)
{
Microsoft.Office.Interop.Excel.Range range = sheet.get_Range(this.GetAix(x, y), miss);
range.set_Value(miss, text);
}
///
/// 給單元格賦值3
///
///
行號
///
列號
///
值
///
字符格式
///
顏色
public void setValue(int y, int x, string text, System.Drawing.Font font, int color)
{
this.setValue(x, y, text);
Microsoft.Office.Interop.Excel.Range range = sheet.get_Range(this.GetAix(x, y), miss);
range.Font.Size = font.Size;
range.Font.Bold = font.Bold;
//這裏是int型的顏色
range.Font.Color = ColorTranslator.ToOle(ColorTranslator.FromWin32(color));
range.Font.Name = font.Name;
range.Font.Italic = font.Italic;
range.Font.Underline = font.Underline;
}
///
/// 給單元格賦值3
///
///
行號
///
列號
///
值
///
字符格式
///
顏色
public void setValue(int y, int x, string text, System.Drawing.Font font, int color, string align)
{
this.setValue(x, y, text);
Microsoft.Office.Interop.Excel.Range range = sheet.get_Range(this.GetAix(x, y), miss);
range.Font.Size = font.Size;
range.Font.Bold = font.Bold;
//這裏是int型的顏色
range.Font.Color = ColorTranslator.ToOle(ColorTranslator.FromWin32(color));
range.Font.Name = font.Name;
range.Font.Italic = font.Italic;
range.Font.Underline = font.Underline;
if (align.ToUpper() == "CENTER")
{
range.HorizontalAlignment = Microsoft.Office.Interop.Excel.XlHAlign.xlHAlignCenter;
}
if (align.ToUpper() == "LEFT")
{
range.HorizontalAlignment = Microsoft.Office.Interop.Excel.XlHAlign.xlHAlignLeft;
}
if (align.ToUpper() == "RIGHT")
{
range.HorizontalAlignment = Microsoft.Office.Interop.Excel.XlHAlign.xlHAlignRight;
}
}
///
/// 插入新行
///
///
模板行號
public void insertRow(int y)
{
Microsoft.Office.Interop.Excel.Range range = sheet.get_Range(GetAix(1, y), GetAix(255, y));
range.Copy(miss);
range.Insert(Microsoft.Office.Interop.Excel.XlDirection.xlDown, miss);
range.get_Range(GetAix(1, y), GetAix(255, y));
range.Select();
sheet.Paste(miss, miss);
}
///
/// 把剪切內容粘貼到當前區域
///
public void paste()
{
string s = "a,b,c,d,e,f,g";
sheet.Paste(sheet.get_Range(this.GetAix(10, 10), miss), s);
}
///
/// 設置邊框
///
///
///
///
///
///
public void setBorder(int x1, int y1, int x2, int y2, int Width)
{
Microsoft.Office.Interop.Excel.Range range = sheet.get_Range(this.GetAix(x1, y1), this.GetAix(x2, y2));
range.Borders.Weight = Width;
}
public void mergeCell(int x1, int y1, int x2, int y2)
{
Microsoft.Office.Interop.Excel.Range range = sheet.get_Range(this.GetAix(x1, y1), this.GetAix(x2, y2));
range.Merge(true);
}
public Microsoft.Office.Interop.Excel.Range getRange(int x1, int y1, int x2, int y2)
{
Microsoft.Office.Interop.Excel.Range range = sheet.get_Range(this.GetAix(x1, y1), this.GetAix(x2, y2));
return range;
}
private object miss = Missing.Value;
//忽略的參數OLENULL
private Microsoft.Office.Interop.Excel.Application m_objExcel;
//Excel應用程序實例
private Microsoft.Office.Interop.Excel.Workbooks m_objBooks;
//工作表集合
private Microsoft.Office.Interop.Excel.Workbook m_objBook;
//當前操作的工作表
private Microsoft.Office.Interop.Excel.Worksheet sheet;
//當前操作的表格
public Microsoft.Office.Interop.Excel.Worksheet CurrentSheet
{
get
{
return sheet;
}
set
{
this.sheet = value;
}
}
public Microsoft.Office.Interop.Excel.Workbooks CurrentWorkBooks
{
get
{
return this.m_objBooks;
}
set
{
this.m_objBooks = value;
}
}
public Microsoft.Office.Interop.Excel.Workbook CurrentWorkBook
{
get
{
return this.m_objBook;
}
set
{
this.m_objBook = value;
}
}
///
/// 打開Excel文件
///
///
路徑
public void OpenExcelFile(string filename)
{
UserControl(false);
m_objExcel.Workbooks.Open(filename, miss, miss, miss, miss, miss, miss, miss,
miss, miss, miss, miss, miss, miss, miss);
m_objBooks = (Microsoft.Office.Interop.Excel.Workbooks)m_objExcel.Workbooks;
m_objBook = m_objExcel.ActiveWorkbook;
sheet = (Microsoft.Office.Interop.Excel.Worksheet)m_objBook.ActiveSheet;
}
public void UserControl(bool usercontrol)
{
if (m_objExcel == null) { return; }
m_objExcel.UserControl = usercontrol;
m_objExcel.DisplayAlerts = usercontrol;
m_objExcel.Visible = usercontrol;
}
public void CreateExceFile()
{
UserControl(false);
m_objBooks = (Microsoft.Office.Interop.Excel.Workbooks)m_objExcel.Workbooks;
m_objBook = (Microsoft.Office.Interop.Excel.Workbook)(m_objBooks.Add(miss));
sheet = (Microsoft.Office.Interop.Excel.Worksheet)m_objBook.ActiveSheet;
}
public void SaveAs(string FileName)
{
m_objBook.SaveAs(FileName, miss, miss, miss, miss,
miss, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlNoChange,
Microsoft.Office.Interop.Excel.XlSaveConflictResolution.xlLocalSessionChanges,
miss, miss, miss, miss);
//m_objBook.Close(false, miss, miss);
}
public void ReleaseExcel()
{
m_objExcel.Quit();
System.Runtime.InteropServices.Marshal.ReleaseComObject((object)m_objExcel);
System.Runtime.InteropServices.Marshal.ReleaseComObject((object)m_objBooks);
System.Runtime.InteropServices.Marshal.ReleaseComObject((object)m_objBook);
System.Runtime.InteropServices.Marshal.ReleaseComObject((object)sheet);
sheet = null;
m_objBook = null;
m_objBooks = null;
m_objExcel = null;
GC.Collect(0);
}
#region KillAllExcel
public bool KillAllExcel()
{
try
{
if (m_objExcel != null)
// isRunning是判斷xlApp是怎麼啓動的flag.
{
m_objExcel.Quit();
System.Runtime.InteropServices.Marshal.ReleaseComObject(m_objExcel);
//釋放COM組件，其實就是將其引用計數減1
//System.Diagnostics.Process theProc;
foreach (System.Diagnostics.Process theProc in System.Diagnostics.Process.GetProcessesByName("EXCEL"))
{
//先關閉圖形窗口。如果關閉失敗……有的時候在狀態裏看不到圖形窗口的excel了，
//但是在進程裏仍然有EXCEL.EXE的進程存在，那麼就需要殺掉它:p
if (theProc.CloseMainWindow() == false)
{
theProc.Kill();
}
}
m_objExcel = null;
return true;
}
}
catch
{
return false;
}
return true;
}
#endregion
#region Kill Special Excel Process
[DllImport("user32.dll", SetLastError = true)]
static extern int GetWindowThreadProcessId(IntPtr hWnd, out int lpdwProcessId);
//推薦這個方法，找了很久，不容易啊
public void KillSpecialExcel()
{
try
{
if (m_objExcel != null)
{
int lpdwProcessId;
GetWindowThreadProcessId(new IntPtr(m_objExcel.Hwnd), out lpdwProcessId);
System.Diagnostics.Process.GetProcessById(lpdwProcessId).Kill();
}
}
catch (Exception ex)
{
Console.WriteLine("Delete Excel Process Error:" + ex.Message);
}
}
#endregion
}
}
最關鍵的就是KillSpecialExcel()這個方法,找到Excel的進程ID,然後殺死這個進程。
斷斷續續找了很久，終於發現了這個方法。
看一個例子：
查看源代碼打印?protected void Button1_Click(object sender, EventArgs e)
{
MSExcel mexc = new MSExcel();
mexc.CreateExceFile();
mexc.insertRow(1);
//注意從1開始的
int col = (256 * 256 * 255) + (256 * 192) + 192;
//顏色
mexc.setValue(1, 1, "Demo", new Font("Arial", 18), col,"center");
//設置單元格內容和樣式
mexc.mergeCell(1, 1, 4, 1);
//合併單元格
for (int i = 2; i <= 101; i++)
{
mexc.insertRow(i);
//插入行
for (int j = 1; j <= 4; j++)
//注意從1開始的
{
mexc.setValue(i, j, i + "--" + j);
//設置單元格內容
}
}
mexc.SaveAs(@"d:\demo.xls");
//保存文件
mexc.KillSpecialExcel();
//關閉創建的Excel進程
}
其它方面還沒有測試，有興趣的話可以自己試試。