公元19XX年前，關於EXCEL的操作就如滔滔江水，連綿不絕，真正操作EXCEL我也是從去年下半年開始的，有些比較複雜的年度報表之類的，做起來也有點費力，不過還是都能畫出來了，關於EXCEL的報表導出，考慮到導出耗時的問題我主要採用AJAX來做的，分別捕捉幾個起止狀態，給客戶端提示3個狀態：正在檢索數據。。。---》準備導出數據。。。(只是從數據庫成功取出，還沒有讀寫excel文件)--》正在讀寫文件--》導出數據成功，當然如果哪一過程出錯，都有對應的提示，只所以想到寫這篇文章，主要是因爲今年有個系統的部分EXCEL的操作也讓我做，順便結合之前操作EXCEL的經驗作一下總結，可能也算不上什麼，對於絕大多數來說也沒什麼技術含量，網上一搜一大把，但我想還是有必要總結一下，至少能給園子裏的新手些許幫助，OK,Let's
Go...
一. 程序操作EXCEL的應用主要還是在統計報表方面，您可能會考慮讀EXCEL模板，也可能會考慮沒必要讀模板，其實讀不讀模板都能達到一樣的效果，看實際情況而用了。
1. 讀模板的話，首先模板存放在某個路徑下，根據模板把從數據庫裏取出的數據寫回EXCEL然後生成一個新的EXCEL存放都另一個路徑以供下載，模板不變。
我這裏的EXCEL操作主要是在VS2005裏的，VS2003也可以的，不過沒怎麼研究03裏的操作(文章最後我會把05，03的示例下載地址貼上）vs05中操作EXCEL直接引用.NET自帶的COM組件
，添加後項目的bin目錄下會自動出現
Interop.Excel.dll這個DLL（需安裝office2003
excel，下面的說明及示例都是基於office2003的，版本不同調用可能會不一樣）
頁面的命名空間引用 using Excel;
下面是調用模板的一段代碼
1 #region 使用模板導出Excel表
2 case "ReportByTemp":
3 {
4
5 DataView dv = Cache["ReportByTemp"] as DataView;
6 //建立一個Excel.Application的新進程
7 Excel.Application app = new Excel.Application();
8 if (app == null)
9 {
10 return;
11 }
12 app.Visible = false;
13 app.UserControl = true;
14 Workbooks workbooks = app.Workbooks;
15 _Workbook workbook = workbooks.Add(template_path + "\\EXCEL測試模板.xls");//這裏的Add方法裏的參數就是模板的路徑
16 Sheets sheets = workbook.Worksheets;
17 _Worksheet worksheet = (_Worksheet)sheets.get_Item(1);//模板只有一個sheet表
18 if (worksheet == null)
19 {
20 return;
21 }
22
23 int rowNum = 0;
24 for (int i = 0; i < dv.Count; i++)
25 {
26 rowNum = i + 1;
27 worksheet.Cells[3 + i, 1] = rowNum;
28 worksheet.Cells[3 + i, 2] = dv[i].Row[0].ToString();
29 worksheet.Cells[3 + i, 3] = dv[i].Row[1].ToString();
30
31 excelOperate.SetBold(worksheet, worksheet.Cells[3 + i, 1], worksheet.Cells[3 + i, 1]); //黑體
32 excelOperate.SetHAlignCenter(worksheet, worksheet.Cells[3 + i, 1], worksheet.Cells[3 + i, 3]);//居中
33 worksheet.get_Range(worksheet.Cells[3 + i, 1], worksheet.Cells[3 + i, 3]).Borders.Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.Black);
34
35 }
36
37 tick = DateTime.Now.Ticks.ToString();
38 save_path = temp_path + "\\" + tick + ".xls";
39 workbook.SaveAs(save_path, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Excel.XlSaveAsAccessMode.xlNoChange, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value);
40 excelOperate.Dispose(worksheet, workbook, app);//關閉Excel進程
41
42 }
43 break;
44 #endregion
2 case "ReportByTemp":
3 {
4
5 DataView dv = Cache["ReportByTemp"] as DataView;
6 //建立一個Excel.Application的新進程
7 Excel.Application app = new Excel.Application();
8 if (app == null)
9 {
10 return;
11 }
12 app.Visible = false;
13 app.UserControl = true;
14 Workbooks workbooks = app.Workbooks;
15 _Workbook workbook = workbooks.Add(template_path + "\\EXCEL測試模板.xls");//這裏的Add方法裏的參數就是模板的路徑
16 Sheets sheets = workbook.Worksheets;
17 _Worksheet worksheet = (_Worksheet)sheets.get_Item(1);//模板只有一個sheet表
18 if (worksheet == null)
19 {
20 return;
21 }
22
23 int rowNum = 0;
24 for (int i = 0; i < dv.Count; i++)
25 {
26 rowNum = i + 1;
27 worksheet.Cells[3 + i, 1] = rowNum;
28 worksheet.Cells[3 + i, 2] = dv[i].Row[0].ToString();
29 worksheet.Cells[3 + i, 3] = dv[i].Row[1].ToString();
30
31 excelOperate.SetBold(worksheet, worksheet.Cells[3 + i, 1], worksheet.Cells[3 + i, 1]); //黑體
32 excelOperate.SetHAlignCenter(worksheet, worksheet.Cells[3 + i, 1], worksheet.Cells[3 + i, 3]);//居中
33 worksheet.get_Range(worksheet.Cells[3 + i, 1], worksheet.Cells[3 + i, 3]).Borders.Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.Black);
34
35 }
36
37 tick = DateTime.Now.Ticks.ToString();
38 save_path = temp_path + "\\" + tick + ".xls";
39 workbook.SaveAs(save_path, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Excel.XlSaveAsAccessMode.xlNoChange, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value);
40 excelOperate.Dispose(worksheet, workbook, app);//關閉Excel進程
41
42 }
43 break;
44 #endregion
效果如下：
2. 不讀模板的話，調用的時候其實會繼承一個空白模板，然後寫入數據，程序畫表頭，最終達到一樣的效果，程序如下：
1 #region 不使用模板生成Excel表
2 case "ReportByNone":
3 {
4
5 DataView dv = Cache["ReportByNone"] as DataView;
6 //建立一個Excel.Application的新進程
7 Excel.Application app = new Excel.Application();
8 if (app == null)
9 {
10 return;
11 }
12 app.Visible = false;
13 app.UserControl = true;
14 Workbooks workbooks = app.Workbooks;
15 _Workbook workbook = workbooks.Add(XlWBATemplate.xlWBATWorksheet);//這裏的Add方法裏的參數就相當於繼承了一個空模板(暫這樣理解吧)
16 Sheets sheets = workbook.Worksheets;
17 _Worksheet worksheet = (_Worksheet)sheets.get_Item(1);
18 if (worksheet == null)
19 {
20 return;
21 }
22
23 worksheet.get_Range(worksheet.Cells[1, 1], worksheet.Cells[1, 3]).Merge(Missing.Value); //橫向合併
24 worksheet.get_Range(worksheet.Cells[1, 1], worksheet.Cells[1, 1]).Value2 = "導出EXCEL測試一";
25 excelOperate.SetBold(worksheet, worksheet.Cells[1, 1], worksheet.Cells[1, 1]); //黑體
26 excelOperate.SetHAlignCenter(worksheet, worksheet.Cells[1, 1], worksheet.Cells[1, 1]);//居中
27 excelOperate.SetBgColor(worksheet, worksheet.Cells[1, 1], worksheet.Cells[1, 1], System.Drawing.Color.Red);//背景色
28 excelOperate.SetFontSize(worksheet, worksheet.Cells[1, 1], worksheet.Cells[1, 1], 16);//字體大小
29 excelOperate.SetRowHeight(worksheet, worksheet.Cells[1, 1], worksheet.Cells[1, 1], 32.25);//行高
30 worksheet.get_Range(worksheet.Cells[1, 1], worksheet.Cells[1, 1]).Borders.Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.Black);//黑色連續邊框
31
32 worksheet.Cells[2, 1] = "序號";
33 worksheet.Cells[2, 2] = "公司";
34 worksheet.Cells[2, 3] = "部門";
35 excelOperate.SetBold(worksheet, worksheet.Cells[2, 1], worksheet.Cells[2, 3]); //黑體
36 worksheet.get_Range(worksheet.Cells[2, 1], worksheet.Cells[2, 3]).Borders.Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.Black);
37 excelOperate.SetHAlignRight(worksheet, worksheet.Cells[2, 1], worksheet.Cells[2, 3]);
38 excelOperate.SetBgColor(worksheet, worksheet.Cells[2, 1], worksheet.Cells[2, 3], System.Drawing.Color.Silver);//背景色
39 int rowNum = 0;
40 for (int i = 0; i < dv.Count; i++)
41 {
42 rowNum = i + 1;
43 worksheet.Cells[3 + i, 1] = rowNum;
44 worksheet.Cells[3 + i, 2] = dv[i].Row[0].ToString();
45 worksheet.Cells[3 + i, 3] = dv[i].Row[1].ToString();
46
47 excelOperate.SetBold(worksheet, worksheet.Cells[3 + i, 1], worksheet.Cells[3 + i, 1]); //黑體
48 excelOperate.SetHAlignCenter(worksheet, worksheet.Cells[3 + i, 1], worksheet.Cells[3 + i, 3]);//居中
49 worksheet.get_Range(worksheet.Cells[3 + i, 1], worksheet.Cells[3 + i, 3]).Borders.Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.Black);//設置邊框顏色，不然打印預覽，會非常不雅觀
50
51 }
52 excelOperate.SetColumnWidth(worksheet, "A", 10);
53 excelOperate.SetColumnWidth(worksheet, "B", 20);
54 excelOperate.SetColumnWidth(worksheet, "C", 20);
55 worksheet.Name = "導出EXCEL測試一";
56
57 tick = DateTime.Now.Ticks.ToString();
58 save_path = temp_path + "\\"+ tick + ".xls";
59 workbook.SaveAs(save_path, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Excel.XlSaveAsAccessMode.xlNoChange, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value);
60 excelOperate.Dispose(worksheet, workbook, app);//關閉Excel進程
61
62 }
63 break;
64
65 #endregion
2 case "ReportByNone":
3 {
4
5 DataView dv = Cache["ReportByNone"] as DataView;
6 //建立一個Excel.Application的新進程
7 Excel.Application app = new Excel.Application();
8 if (app == null)
9 {
10 return;
11 }
12 app.Visible = false;
13 app.UserControl = true;
14 Workbooks workbooks = app.Workbooks;
15 _Workbook workbook = workbooks.Add(XlWBATemplate.xlWBATWorksheet);//這裏的Add方法裏的參數就相當於繼承了一個空模板(暫這樣理解吧)
16 Sheets sheets = workbook.Worksheets;
17 _Worksheet worksheet = (_Worksheet)sheets.get_Item(1);
18 if (worksheet == null)
19 {
20 return;
21 }
22
23 worksheet.get_Range(worksheet.Cells[1, 1], worksheet.Cells[1, 3]).Merge(Missing.Value); //橫向合併
24 worksheet.get_Range(worksheet.Cells[1, 1], worksheet.Cells[1, 1]).Value2 = "導出EXCEL測試一";
25 excelOperate.SetBold(worksheet, worksheet.Cells[1, 1], worksheet.Cells[1, 1]); //黑體
26 excelOperate.SetHAlignCenter(worksheet, worksheet.Cells[1, 1], worksheet.Cells[1, 1]);//居中
27 excelOperate.SetBgColor(worksheet, worksheet.Cells[1, 1], worksheet.Cells[1, 1], System.Drawing.Color.Red);//背景色
28 excelOperate.SetFontSize(worksheet, worksheet.Cells[1, 1], worksheet.Cells[1, 1], 16);//字體大小
29 excelOperate.SetRowHeight(worksheet, worksheet.Cells[1, 1], worksheet.Cells[1, 1], 32.25);//行高
30 worksheet.get_Range(worksheet.Cells[1, 1], worksheet.Cells[1, 1]).Borders.Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.Black);//黑色連續邊框
31
32 worksheet.Cells[2, 1] = "序號";
33 worksheet.Cells[2, 2] = "公司";
34 worksheet.Cells[2, 3] = "部門";
35 excelOperate.SetBold(worksheet, worksheet.Cells[2, 1], worksheet.Cells[2, 3]); //黑體
36 worksheet.get_Range(worksheet.Cells[2, 1], worksheet.Cells[2, 3]).Borders.Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.Black);
37 excelOperate.SetHAlignRight(worksheet, worksheet.Cells[2, 1], worksheet.Cells[2, 3]);
38 excelOperate.SetBgColor(worksheet, worksheet.Cells[2, 1], worksheet.Cells[2, 3], System.Drawing.Color.Silver);//背景色
39 int rowNum = 0;
40 for (int i = 0; i < dv.Count; i++)
41 {
42 rowNum = i + 1;
43 worksheet.Cells[3 + i, 1] = rowNum;
44 worksheet.Cells[3 + i, 2] = dv[i].Row[0].ToString();
45 worksheet.Cells[3 + i, 3] = dv[i].Row[1].ToString();
46
47 excelOperate.SetBold(worksheet, worksheet.Cells[3 + i, 1], worksheet.Cells[3 + i, 1]); //黑體
48 excelOperate.SetHAlignCenter(worksheet, worksheet.Cells[3 + i, 1], worksheet.Cells[3 + i, 3]);//居中
49 worksheet.get_Range(worksheet.Cells[3 + i, 1], worksheet.Cells[3 + i, 3]).Borders.Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.Black);//設置邊框顏色，不然打印預覽，會非常不雅觀
50
51 }
52 excelOperate.SetColumnWidth(worksheet, "A", 10);
53 excelOperate.SetColumnWidth(worksheet, "B", 20);
54 excelOperate.SetColumnWidth(worksheet, "C", 20);
55 worksheet.Name = "導出EXCEL測試一";
56
57 tick = DateTime.Now.Ticks.ToString();
58 save_path = temp_path + "\\"+ tick + ".xls";
59 workbook.SaveAs(save_path, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Excel.XlSaveAsAccessMode.xlNoChange, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value);
60 excelOperate.Dispose(worksheet, workbook, app);//關閉Excel進程
61
62 }
63 break;
64
65 #endregion
效果如下：
以上我給了兩個最簡單的操作說明，下面詳細說一下對於一些稍微複雜的報表的生成處理
二. 對於複雜的EXCEL報表的生成處理，無非是縱向合併相同的數據行及嵌套縱向合併等一些操作，下面就幾個具有針對性的報表作下說明.
1.要生成相對複雜的EXCEL表，在從數據庫取數據時，要注意先按照合理的要求排好序，有時候可能order by後面要跟好幾個字段，而且這幾個字段誰先誰後也要注意，因爲這些會直接影響報表呈現的效果，比如你的EXCEL表要按月份統計國內外的項目，顯示出來的時候要多個項目相同的人連續，那麼排序就可能要這樣order by 月份，項目類別，用戶ID，項目ID（這是寫好的視圖，基於視圖來檢索的），這個排序的字段順序就不能變了，變了的話就不太好生成想要的形式了，如下圖：
這個也是動態畫的，用了個簡單的模板，模板就一個表頭，沒多大意義，除非表頭很複雜而且在列表中不需要重畫，考慮模板就比較好，向上面那個一月份國際的和其它月份的都是需要重畫表頭的。至於合併，如果不是嵌套的合併，我們可以在向模板循環寫數據的時候直接控制，比如下面一個簡單的寫法：
1 for (i = 0; i < table.Rows.Count; i++)
2 {
3 bidName = table.Rows[index]["BIDNAME"].ToString();
4 if (table.Rows[i]["BIDNAME"].ToString() == bidName)
5 {
6 projNum++;
7 worksheet.Cells[5 + i, 2] = table.Rows[i]["PROJNO"];
8 worksheet.Cells[5 + i, 3] = table.Rows[i]["PROJNAME"];
9 worksheet.Cells[5 + i, 4] = table.Rows[i]["STAT_DATE"];
10 worksheet.Cells[5 + i, 5] = table.Rows[i]["PROJTYPE"];
11 worksheet.Cells[5 + i, 6] = table.Rows[i]["CONTENT"];
12 worksheet.Cells[5 + i, 7] = table.Rows[i]["OPENDT"];
13 worksheet.Cells[5 + i, 8] = table.Rows[i]["OPENADDRESS"];
14 worksheet.Cells[5 + i, 9] = table.Rows[i]["REV_DATE"];
15 worksheet.Cells[5 + i, 10] = table.Rows[i]["BID_UNIT"];
16 worksheet.Cells[5 + i, 11] = table.Rows[i]["AGT_AMOUNT"];
17 worksheet.Cells[5 + i, 12] = table.Rows[i]["CURRENCY"] + ":" + table.Rows[i]["BIDSER_AMOUNT"];
18 worksheet.Cells[5 + i, 13] = table.Rows[i]["SENDDATE"];
19 worksheet.Cells[5 + i, 14] = table.Rows[i]["CURRENCY"] + ":" + table.Rows[i]["BIDPRICE"];
20 worksheet.Cells[5 + i, 15] = table.Rows[i]["BOOKAMOUNT"];
21 worksheet.Cells[5 + i, 16] = table.Rows[i]["CURRENCY"] + ":" + table.Rows[i]["BAIL_AMOUNT"];
22 worksheet.Cells[5 + i, 17] = table.Rows[i]["USERNAME"];
23 worksheet.Cells[5 + i, 18] = table.Rows[i]["SECOND_USER"];
24 worksheet.Cells[5 + i, 19] = "";
25 worksheet.get_Range(worksheet.Cells[5 + i, 1], worksheet.Cells[5 + i, 19]).Borders.Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.Black);
26 continue;
27 }
28
29 worksheet.get_Range(worksheet.Cells[5 + rowid, 1], worksheet.Cells[5 + i - 1, 1]).Merge(Missing.Value); //將第一列按投標單位合併
30 worksheet.get_Range(worksheet.Cells[5 + rowid, 1], worksheet.Cells[5 + rowid, 1]).Value2 = bidName + "(" + projNum.ToString() + "個項目)";//合併後的單元格內容
2 {
3 bidName = table.Rows[index]["BIDNAME"].ToString();
4 if (table.Rows[i]["BIDNAME"].ToString() == bidName)
5 {
6 projNum++;
7 worksheet.Cells[5 + i, 2] = table.Rows[i]["PROJNO"];
8 worksheet.Cells[5 + i, 3] = table.Rows[i]["PROJNAME"];
9 worksheet.Cells[5 + i, 4] = table.Rows[i]["STAT_DATE"];
10 worksheet.Cells[5 + i, 5] = table.Rows[i]["PROJTYPE"];
11 worksheet.Cells[5 + i, 6] = table.Rows[i]["CONTENT"];
12 worksheet.Cells[5 + i, 7] = table.Rows[i]["OPENDT"];
13 worksheet.Cells[5 + i, 8] = table.Rows[i]["OPENADDRESS"];
14 worksheet.Cells[5 + i, 9] = table.Rows[i]["REV_DATE"];
15 worksheet.Cells[5 + i, 10] = table.Rows[i]["BID_UNIT"];
16 worksheet.Cells[5 + i, 11] = table.Rows[i]["AGT_AMOUNT"];
17 worksheet.Cells[5 + i, 12] = table.Rows[i]["CURRENCY"] + ":" + table.Rows[i]["BIDSER_AMOUNT"];
18 worksheet.Cells[5 + i, 13] = table.Rows[i]["SENDDATE"];
19 worksheet.Cells[5 + i, 14] = table.Rows[i]["CURRENCY"] + ":" + table.Rows[i]["BIDPRICE"];
20 worksheet.Cells[5 + i, 15] = table.Rows[i]["BOOKAMOUNT"];
21 worksheet.Cells[5 + i, 16] = table.Rows[i]["CURRENCY"] + ":" + table.Rows[i]["BAIL_AMOUNT"];
22 worksheet.Cells[5 + i, 17] = table.Rows[i]["USERNAME"];
23 worksheet.Cells[5 + i, 18] = table.Rows[i]["SECOND_USER"];
24 worksheet.Cells[5 + i, 19] = "";
25 worksheet.get_Range(worksheet.Cells[5 + i, 1], worksheet.Cells[5 + i, 19]).Borders.Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.Black);
26 continue;
27 }
28
29 worksheet.get_Range(worksheet.Cells[5 + rowid, 1], worksheet.Cells[5 + i - 1, 1]).Merge(Missing.Value); //將第一列按投標單位合併
30 worksheet.get_Range(worksheet.Cells[5 + rowid, 1], worksheet.Cells[5 + rowid, 1]).Value2 = bidName + "(" + projNum.ToString() + "個項目)";//合併後的單元格內容
合併單元格的時候也要注意一個問題，就是合併的單元格必須是爲空的，不然在執行合併時，會提示“合併後的單元格的值將丟失”，具體不這樣提示的，大致是這個意思，一般我們合併都單元格相同的內容，在合併前我們先保存那個值，再清空後合併，上面的代碼中把worksheet.Cell[5+rowid,1]這裏系列的單元格的值空出來了，沒寫數據，而且最後合併了再寫值，避免了去循環清空。
2.嵌套的合併向上面那樣做可能控制比較麻煩，而且思路可能很混亂，我們可以考慮先循環填充所有的數據，在循環出來要合併的列，比如像下面的這張表
先循環填充數據，如下：
1 int index = 0, rownum = 0;
2 string ProjNo = "";
3 for (i = 0; i < table.Rows.Count; i++)
4 {
5 ProjNo = table.Rows[index]["PROJNO"].ToString();
6 if (table.Rows[i]["PROJNO"].ToString() == ProjNo)
7 {
8 wksheet.Cells[3 + i, 1] = rownum + 1;
9 wksheet.Cells[3 + i, 2] = "'" + table.Rows[i]["PROJNO"]; //加上單引號保證以0開頭的字符原樣輸出
10 wksheet.Cells[3 + i, 3] = "'" + table.Rows[i]["PROJNAME"];
11 wksheet.Cells[3 + i, 4] = "'" + table.Rows[i]["PA_NAME"];
12 wksheet.Cells[3 + i, 5] = "'" + table.Rows[i]["BIDER_NAME"];
13 wksheet.Cells[3 + i, 6] = table.Rows[i]["BAIL_AMOUNT"];
14 wksheet.Cells[3 + i, 7] = table.Rows[i]["NOT_BACK"];
15 wksheet.get_Range(wksheet.Cells[3 + i, 1], wksheet.Cells[3 + i, 7]).Borders.Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.Black);
16 continue;
17 }
18
19 index = i;
20 rownum++;
21 i--;
22
23 }
2 string ProjNo = "";
3 for (i = 0; i < table.Rows.Count; i++)
4 {
5 ProjNo = table.Rows[index]["PROJNO"].ToString();
6 if (table.Rows[i]["PROJNO"].ToString() == ProjNo)
7 {
8 wksheet.Cells[3 + i, 1] = rownum + 1;
9 wksheet.Cells[3 + i, 2] = "'" + table.Rows[i]["PROJNO"]; //加上單引號保證以0開頭的字符原樣輸出
10 wksheet.Cells[3 + i, 3] = "'" + table.Rows[i]["PROJNAME"];
11 wksheet.Cells[3 + i, 4] = "'" + table.Rows[i]["PA_NAME"];
12 wksheet.Cells[3 + i, 5] = "'" + table.Rows[i]["BIDER_NAME"];
13 wksheet.Cells[3 + i, 6] = table.Rows[i]["BAIL_AMOUNT"];
14 wksheet.Cells[3 + i, 7] = table.Rows[i]["NOT_BACK"];
15 wksheet.get_Range(wksheet.Cells[3 + i, 1], wksheet.Cells[3 + i, 7]).Borders.Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.Black);
16 continue;
17 }
18
19 index = i;
20 rownum++;
21 i--;
22
23 }
下面合併前三列相同內容的單元：
1 //合併前三列操作
2 int m = 1, rowid = 3, k;
3 string projName = "";
4 for (k = 3; k <= i + 2; k++)
5 {
6 if (Convert.ToInt32(wksheet.get_Range(wksheet.Cells[k, 1], wksheet.Cells[k, 1]).Value2) == m)
7 {
8 ProjNo = wksheet.get_Range(wksheet.Cells[k, 2], wksheet.Cells[k, 2]).Value2.ToString();
9 projName = wksheet.get_Range(wksheet.Cells[k, 3], wksheet.Cells[k, 3]).Value2.ToString();
10 wksheet.get_Range(wksheet.Cells[k, 1], wksheet.Cells[k, 1]).Value2 = "";
11 wksheet.get_Range(wksheet.Cells[k, 2], wksheet.Cells[k, 2]).Value2 = "";
12 wksheet.get_Range(wksheet.Cells[k, 3], wksheet.Cells[k, 3]).Value2 = "";
13 continue;
14 }
15 wksheet.get_Range(wksheet.Cells[rowid, 1], wksheet.Cells[k - 1, 1]).Merge(Missing.Value);
16 wksheet.get_Range(wksheet.Cells[rowid, 1], wksheet.Cells[rowid, 1]).Value2 = m;
17
18 wksheet.get_Range(wksheet.Cells[rowid, 2], wksheet.Cells[k - 1, 2]).Merge(Missing.Value);
19 wksheet.get_Range(wksheet.Cells[rowid, 2], wksheet.Cells[rowid, 2]).Value2 = "'" + ProjNo;
20
21 wksheet.get_Range(wksheet.Cells[rowid, 3], wksheet.Cells[k - 1, 3]).Merge(Missing.Value);
22 wksheet.get_Range(wksheet.Cells[rowid, 3], wksheet.Cells[rowid, 3]).Value2 = "'" + projName;
23
24 m++;
25 rowid = k;
26 k--;
27 }
28 //跳出循環後合併最後一個招標項目
29
30 wksheet.get_Range(wksheet.Cells[rowid, 1], wksheet.Cells[k - 1, 1]).Merge(Missing.Value);
31 wksheet.get_Range(wksheet.Cells[rowid, 1], wksheet.Cells[rowid, 1]).Value2 = m;
32
33 wksheet.get_Range(wksheet.Cells[rowid, 2], wksheet.Cells[k - 1, 2]).Merge(Missing.Value);
34 wksheet.get_Range(wksheet.Cells[rowid, 2], wksheet.Cells[rowid, 2]).Value2 = "'" + ProjNo;
35
36 wksheet.get_Range(wksheet.Cells[rowid, 3], wksheet.Cells[k - 1, 3]).Merge(Missing.Value);
37 wksheet.get_Range(wksheet.Cells[rowid, 3], wksheet.Cells[rowid, 3]).Value2 = "'" + projName;
2 int m = 1, rowid = 3, k;
3 string projName = "";
4 for (k = 3; k <= i + 2; k++)
5 {
6 if (Convert.ToInt32(wksheet.get_Range(wksheet.Cells[k, 1], wksheet.Cells[k, 1]).Value2) == m)
7 {
8 ProjNo = wksheet.get_Range(wksheet.Cells[k, 2], wksheet.Cells[k, 2]).Value2.ToString();
9 projName = wksheet.get_Range(wksheet.Cells[k, 3], wksheet.Cells[k, 3]).Value2.ToString();
10 wksheet.get_Range(wksheet.Cells[k, 1], wksheet.Cells[k, 1]).Value2 = "";
11 wksheet.get_Range(wksheet.Cells[k, 2], wksheet.Cells[k, 2]).Value2 = "";
12 wksheet.get_Range(wksheet.Cells[k, 3], wksheet.Cells[k, 3]).Value2 = "";
13 continue;
14 }
15 wksheet.get_Range(wksheet.Cells[rowid, 1], wksheet.Cells[k - 1, 1]).Merge(Missing.Value);
16 wksheet.get_Range(wksheet.Cells[rowid, 1], wksheet.Cells[rowid, 1]).Value2 = m;
17
18 wksheet.get_Range(wksheet.Cells[rowid, 2], wksheet.Cells[k - 1, 2]).Merge(Missing.Value);
19 wksheet.get_Range(wksheet.Cells[rowid, 2], wksheet.Cells[rowid, 2]).Value2 = "'" + ProjNo;
20
21 wksheet.get_Range(wksheet.Cells[rowid, 3], wksheet.Cells[k - 1, 3]).Merge(Missing.Value);
22 wksheet.get_Range(wksheet.Cells[rowid, 3], wksheet.Cells[rowid, 3]).Value2 = "'" + projName;
23
24 m++;
25 rowid = k;
26 k--;
27 }
28 //跳出循環後合併最後一個招標項目
29
30 wksheet.get_Range(wksheet.Cells[rowid, 1], wksheet.Cells[k - 1, 1]).Merge(Missing.Value);
31 wksheet.get_Range(wksheet.Cells[rowid, 1], wksheet.Cells[rowid, 1]).Value2 = m;
32
33 wksheet.get_Range(wksheet.Cells[rowid, 2], wksheet.Cells[k - 1, 2]).Merge(Missing.Value);
34 wksheet.get_Range(wksheet.Cells[rowid, 2], wksheet.Cells[rowid, 2]).Value2 = "'" + ProjNo;
35
36 wksheet.get_Range(wksheet.Cells[rowid, 3], wksheet.Cells[k - 1, 3]).Merge(Missing.Value);
37 wksheet.get_Range(wksheet.Cells[rowid, 3], wksheet.Cells[rowid, 3]).Value2 = "'" + projName;
下面合併標段列
1 //合併標段列
2
3 index = 0; rowid = 3; //重置變量
4 string pa_name = string.Empty; //標段名稱
5 for (k = 3; k <= i + 2; k++)
6 {
7 pa_name = table.Rows[index]["PA_NAME"].ToString();
8 if (wksheet.get_Range(wksheet.Cells[k, 4], wksheet.Cells[k, 4]).Value2.ToString() == pa_name)
9 {
10 wksheet.get_Range(wksheet.Cells[k, 4], wksheet.Cells[k, 4]).Value2 = "";
11 continue;
12 }
13 wksheet.get_Range(wksheet.Cells[rowid, 4], wksheet.Cells[k - 1, 4]).Merge(Missing.Value);
14 wksheet.get_Range(wksheet.Cells[rowid, 4], wksheet.Cells[rowid, 4]).Value2 = "'" + pa_name;
15 index = k - 3;
16 rowid = k;
17 k--;
18
19 }
20 //退出循環時合併最後一個項目的標段
21 wksheet.get_Range(wksheet.Cells[rowid, 4], wksheet.Cells[k - 1, 4]).Merge(Missing.Value);
22 wksheet.get_Range(wksheet.Cells[rowid, 4], wksheet.Cells[rowid, 4]).Value2 = "'" + pa_name;
23 tick = DateTime.Now.ToString("yyyyMMddhhmmss");
24 save_path = temp_path + "\\" + tick + "保證金收退情況表.xls";
25 Session["BailBackID"] = tick + "保證金收退情況表.xls";
26 Session["_BailBack"] = "true";
27 workbook.SaveAs(save_path, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Excel.XlSaveAsAccessMode.xlNoChange, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value);
28 excelOperate.Dispose(worksheet, workbook, app);//關閉Excel進程
29 //DownLoad(save_path);
30 //Page_Close();
2
3 index = 0; rowid = 3; //重置變量
4 string pa_name = string.Empty; //標段名稱
5 for (k = 3; k <= i + 2; k++)
6 {
7 pa_name = table.Rows[index]["PA_NAME"].ToString();
8 if (wksheet.get_Range(wksheet.Cells[k, 4], wksheet.Cells[k, 4]).Value2.ToString() == pa_name)
9 {
10 wksheet.get_Range(wksheet.Cells[k, 4], wksheet.Cells[k, 4]).Value2 = "";
11 continue;
12 }
13 wksheet.get_Range(wksheet.Cells[rowid, 4], wksheet.Cells[k - 1, 4]).Merge(Missing.Value);
14 wksheet.get_Range(wksheet.Cells[rowid, 4], wksheet.Cells[rowid, 4]).Value2 = "'" + pa_name;
15 index = k - 3;
16 rowid = k;
17 k--;
18
19 }
20 //退出循環時合併最後一個項目的標段
21 wksheet.get_Range(wksheet.Cells[rowid, 4], wksheet.Cells[k - 1, 4]).Merge(Missing.Value);
22 wksheet.get_Range(wksheet.Cells[rowid, 4], wksheet.Cells[rowid, 4]).Value2 = "'" + pa_name;
23 tick = DateTime.Now.ToString("yyyyMMddhhmmss");
24 save_path = temp_path + "\\" + tick + "保證金收退情況表.xls";
25 Session["BailBackID"] = tick + "保證金收退情況表.xls";
26 Session["_BailBack"] = "true";
27 workbook.SaveAs(save_path, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Excel.XlSaveAsAccessMode.xlNoChange, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value);
28 excelOperate.Dispose(worksheet, workbook, app);//關閉Excel進程
29 //DownLoad(save_path);
30 //Page_Close();
當然，上面的操作中會進行好幾次循環，在性能方面不太可取，園子裏的兄弟也許會有更好的方法，小弟不吝賜教了
下面我們看下幾個效果圖：
（注意：這裏提示的導出數據是指從數據庫成功取出數據，還沒有操作EXCEL對象，剛開始已經說過了，當然這個提示文字換成其它的也可以）
整個過程採用AJAX提示的，一來不刷新，二來導出時間比較長的話，可以給客戶一個良好的體驗效果，否可，用戶一點導出按鈕，半天沒反應也沒提示，客戶就覺得怎麼這麼慢的，是不是你們程序有問題，指責一大堆，有了這麼些交互提示信息，讓客戶多等幾分鐘也能承受。
3.生成的表格包含多個sheet的操作，比如下面一種情況
繪製這張表的要求是根據選擇某年的幾月到幾月，生成這個幾個月的一個綜合情況的sheet，然後分別生成這幾個月的單獨的sheet表，生成上面表的模板，包含兩個sheet ，一個綜合月份的sheet和一個單獨月份的sheet，因爲單獨月份的sheet表現形式都是一樣的，我們可以根據選擇的月份個數Copy幾個sheet就可以了
1 Workbooks workbooks = app.Workbooks;
2
3 _Workbook workbook = workbooks.Add(template_path + "\\招標單位年度招標情況逐月統計表.xls");
4 Sheets sheets = workbook.Worksheets;
5 _Worksheet Yearsheet = (_Worksheet)sheets.get_Item(1);
6 _Worksheet worksheet = (_Worksheet)sheets.get_Item(2);
7 if (worksheet == null)
8 {
9 return;
10 }
11 for (int i = 1; i < monthCount; i++)
12 worksheet.Copy(Missing.Value, workbook.Worksheets[2]);//月統計工作薄
2
3 _Workbook workbook = workbooks.Add(template_path + "\\招標單位年度招標情況逐月統計表.xls");
4 Sheets sheets = workbook.Worksheets;
5 _Worksheet Yearsheet = (_Worksheet)sheets.get_Item(1);
6 _Worksheet worksheet = (_Worksheet)sheets.get_Item(2);
7 if (worksheet == null)
8 {
9 return;
10 }
11 for (int i = 1; i < monthCount; i++)
12 worksheet.Copy(Missing.Value, workbook.Worksheets[2]);//月統計工作薄
Yearsheet的操作就不說了，和前面幾個一樣操作，關鍵是月份的sheet的生成，其實就是循環操作get_Item(i)，代碼如下
1 //////////////////////////////////////每月詳細統計////////////////////////////////////
2
3 int item_id = 2;
4 rowNum = 0; book_Amount = 0; index = 0;
5 bid_Amount = ""; bidser_Amount = ""; agent_Amount = 0;//清空變量
6 _Worksheet ws = null;
7 for (int i = 0; i < tableMM.Rows.Count; i++)
8 {
9 rowNum++;
10 Month = tableMM.Rows[index]["DATE_MONTH"].ToString();
11 if (tableMM.Rows[i]["DATE_MONTH"].ToString() == Month)
12 {
13 ws = (_Worksheet)sheets.get_Item(item_id);
14 ws.Cells[3 + rowNum - 1, 1] = rowNum;
15 ws.Cells[3 + rowNum - 1, 2] = tableMM.Rows[i]["PROJNO"];
16 ws.Cells[3 + rowNum - 1, 3] = tableMM.Rows[i]["PROJNAME"];
17 ws.Cells[3 + rowNum - 1, 4] = tableMM.Rows[i]["BID_TYPE"];
18 ws.Cells[3 + rowNum - 1, 5] = tableMM.Rows[i]["BID_MODE"];
19 ws.Cells[3 + rowNum - 1, 6] = tableMM.Rows[i]["OPENDT"];
20 ws.Cells[3 + rowNum - 1, 7] = tableMM.Rows[i]["OPENADDRESS"];
21 ws.Cells[3 + rowNum - 1, 8] = tableMM.Rows[i]["BID_UNIT"];
22 ws.Cells[3 + rowNum - 1, 9] = tableMM.Rows[i]["NOTICE_NO"].ToString().Replace("神華國貿", "");
23 ws.Cells[3 + rowNum - 1, 10] = tableMM.Rows[i]["BOOKAMOUNT"];
24 ws.Cells[3 + rowNum - 1, 11] = tableMM.Rows[i]["BIDPRICE"] + "(萬" + tableMM.Rows[i]["CURRENCY"] + ")";
25 ws.Cells[3 + rowNum - 1, 12] = tableMM.Rows[i]["BIDSER_AMOUNT"] + "(萬" + tableMM.Rows[i]["CURRENCY"]+")";
26 ws.Cells[3 + rowNum - 1, 13] = tableMM.Rows[i]["AGT_AMOUNT"];
27 ws.Cells[3 + rowNum - 1, 14] = "";
28 ws.get_Range(ws.Cells[3 + rowNum - 1, 1], ws.Cells[3 + rowNum - 1, 14]).Borders.Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.Black);
29 continue;
30 }
31
32 ws.Cells[1, 1] = year + "年" + bidName + GetMonth(Month) + "月份招標項目情況一覽表";
33
34 //每月合計
35 sql = " SELECT CURRENCY, NVL(SUM(BIDPRICE),0) AS BIDPRICE,NVL(SUM(BOOKAMOUNT),0) AS BOOKAMOUNT,NVL(SUM(BIDSER_AMOUNT),0) AS BIDSER_AMOUNT,NVL(SUM(AGT_AMOUNT),0) AS AGT_AMOUNT FROM IBS_V_BID_MONTHLY_STAT" + SqlFilter +
36 " AND DATE_YEAR ='" + year + "' AND COMPANY_ID=" + biderID + " AND DATE_MONTH ='" + Month + "'" +
37 " GROUP BY CURRENCY";
38 System.Data.DataTable dt1 = OracleHelper.RetDataTable(sql);
39 for (int m = 0; m < dt1.Rows.Count; m++)
40 {
41 bid_Amount += dt1.Rows[m]["BIDPRICE"] + "(萬"+dt1.Rows[m]["CURRENCY"] + ")\r\t";
42 book_Amount += float.Parse(dt1.Rows[m]["BOOKAMOUNT"].ToString());
43 bidser_Amount += dt1.Rows[m]["BIDSER_AMOUNT"] + "(萬" + dt1.Rows[m]["CURRENCY"] + ")\r\t";
44 agent_Amount += float.Parse(dt1.Rows[m]["AGT_AMOUNT"].ToString());
45 }
46
47 ws.Cells[3 + rowNum - 1, 3] = "合 計";
48 ws.Cells[3 + rowNum - 1, 10] = book_Amount;
49 ws.Cells[3 + rowNum - 1, 11] = bid_Amount;
50 ws.Cells[3 + rowNum - 1, 12] = bidser_Amount;
51 ws.Cells[3 + rowNum - 1, 13] = agent_Amount;
52 ws.get_Range(ws.Cells[3 + rowNum - 1, 1], ws.Cells[3 + rowNum - 1, 14]).Borders.Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.Black);
53 ws.Name = GetMM(Month);
54
55 item_id++;
56 index = i; //彙總下一個月份的招標項目
57 i--;
58 rowNum = 0; book_Amount = 0;
59 bid_Amount = ""; bidser_Amount = ""; agent_Amount = 0;//清空變量
60 }
61
62 //跳出循環時進行最後一個月份的項目彙總
2
3 int item_id = 2;
4 rowNum = 0; book_Amount = 0; index = 0;
5 bid_Amount = ""; bidser_Amount = ""; agent_Amount = 0;//清空變量
6 _Worksheet ws = null;
7 for (int i = 0; i < tableMM.Rows.Count; i++)
8 {
9 rowNum++;
10 Month = tableMM.Rows[index]["DATE_MONTH"].ToString();
11 if (tableMM.Rows[i]["DATE_MONTH"].ToString() == Month)
12 {
13 ws = (_Worksheet)sheets.get_Item(item_id);
14 ws.Cells[3 + rowNum - 1, 1] = rowNum;
15 ws.Cells[3 + rowNum - 1, 2] = tableMM.Rows[i]["PROJNO"];
16 ws.Cells[3 + rowNum - 1, 3] = tableMM.Rows[i]["PROJNAME"];
17 ws.Cells[3 + rowNum - 1, 4] = tableMM.Rows[i]["BID_TYPE"];
18 ws.Cells[3 + rowNum - 1, 5] = tableMM.Rows[i]["BID_MODE"];
19 ws.Cells[3 + rowNum - 1, 6] = tableMM.Rows[i]["OPENDT"];
20 ws.Cells[3 + rowNum - 1, 7] = tableMM.Rows[i]["OPENADDRESS"];
21 ws.Cells[3 + rowNum - 1, 8] = tableMM.Rows[i]["BID_UNIT"];
22 ws.Cells[3 + rowNum - 1, 9] = tableMM.Rows[i]["NOTICE_NO"].ToString().Replace("神華國貿", "");
23 ws.Cells[3 + rowNum - 1, 10] = tableMM.Rows[i]["BOOKAMOUNT"];
24 ws.Cells[3 + rowNum - 1, 11] = tableMM.Rows[i]["BIDPRICE"] + "(萬" + tableMM.Rows[i]["CURRENCY"] + ")";
25 ws.Cells[3 + rowNum - 1, 12] = tableMM.Rows[i]["BIDSER_AMOUNT"] + "(萬" + tableMM.Rows[i]["CURRENCY"]+")";
26 ws.Cells[3 + rowNum - 1, 13] = tableMM.Rows[i]["AGT_AMOUNT"];
27 ws.Cells[3 + rowNum - 1, 14] = "";
28 ws.get_Range(ws.Cells[3 + rowNum - 1, 1], ws.Cells[3 + rowNum - 1, 14]).Borders.Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.Black);
29 continue;
30 }
31
32 ws.Cells[1, 1] = year + "年" + bidName + GetMonth(Month) + "月份招標項目情況一覽表";
33
34 //每月合計
35 sql = " SELECT CURRENCY, NVL(SUM(BIDPRICE),0) AS BIDPRICE,NVL(SUM(BOOKAMOUNT),0) AS BOOKAMOUNT,NVL(SUM(BIDSER_AMOUNT),0) AS BIDSER_AMOUNT,NVL(SUM(AGT_AMOUNT),0) AS AGT_AMOUNT FROM IBS_V_BID_MONTHLY_STAT" + SqlFilter +
36 " AND DATE_YEAR ='" + year + "' AND COMPANY_ID=" + biderID + " AND DATE_MONTH ='" + Month + "'" +
37 " GROUP BY CURRENCY";
38 System.Data.DataTable dt1 = OracleHelper.RetDataTable(sql);
39 for (int m = 0; m < dt1.Rows.Count; m++)
40 {
41 bid_Amount += dt1.Rows[m]["BIDPRICE"] + "(萬"+dt1.Rows[m]["CURRENCY"] + ")\r\t";
42 book_Amount += float.Parse(dt1.Rows[m]["BOOKAMOUNT"].ToString());
43 bidser_Amount += dt1.Rows[m]["BIDSER_AMOUNT"] + "(萬" + dt1.Rows[m]["CURRENCY"] + ")\r\t";
44 agent_Amount += float.Parse(dt1.Rows[m]["AGT_AMOUNT"].ToString());
45 }
46
47 ws.Cells[3 + rowNum - 1, 3] = "合 計";
48 ws.Cells[3 + rowNum - 1, 10] = book_Amount;
49 ws.Cells[3 + rowNum - 1, 11] = bid_Amount;
50 ws.Cells[3 + rowNum - 1, 12] = bidser_Amount;
51 ws.Cells[3 + rowNum - 1, 13] = agent_Amount;
52 ws.get_Range(ws.Cells[3 + rowNum - 1, 1], ws.Cells[3 + rowNum - 1, 14]).Borders.Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.Black);
53 ws.Name = GetMM(Month);
54
55 item_id++;
56 index = i; //彙總下一個月份的招標項目
57 i--;
58 rowNum = 0; book_Amount = 0;
59 bid_Amount = ""; bidser_Amount = ""; agent_Amount = 0;//清空變量
60 }
61
62 //跳出循環時進行最後一個月份的項目彙總
用的是oracle數據庫，所以上面那個sql語句。。。 呵呵
============================================================================================
上面大致說得就差不多了，因爲是不斷循環的什麼的，可能對於大的數據量讀寫來說，比較好性能，如果大家有什麼更好的方法，可以指點下，爲了彌補等待時間過長，所以才結合了AJAX來處理。
最後我把做的一個小demo的鏈接帖出來給大家，還有一些空模板和對應生成的數據表給大家對照看下，尤其相對複雜一些的表畫應該是能畫出來的，主要看大家採用什麼樣的方法，能少循環一次就儘量少循環，呵呵~~~
http://www.justlike.com.cn/upfiles/template_xls.rar
http://www.justlike.com.cn/upfiles/ExcelFiles.rar
http://www.justlike.com.cn/upfiles/ExcelReportDemo.rar
（說明：最後彈出下載文件的一個頁面一直想讓其自動關掉，但是不行，如果不關掉，再點導出，不會彈出下載框，實際的處理中我們可以在導出旁邊放個下載按鈕，就像上面的效果圖裏那樣，當然可以點導出的時候讓其在網頁中直接打開，點下載的時候再彈出下載框，但是直接打開的話，文件需要生成在虛擬目錄下，不太安全，呵呵~~，看實際情況處理了）
==========================================================================================
今天補充說明下，關於那個調用ajax回調的效果，有個地方用到了所謂的“ajax嵌套調用”，如下
1 function ExcelReportCallback(resp)
2 {
3 if(resp.value == "OK")
4 {
5
6 ('tipMsg').innerHTML = "<img border=\"0\" src=\"images/s_progressbar.gif\"><font color=#FF0000 style=font-weight:bold>準備導出數據,請稍等![]()
![]()
</font>";
7 setTimeout("RedirectUrl()",1000);//延時體驗
8 }
9 else
10 if(resp.value == "NO")
11 {
12 ('tipMsg').innerHTML = "<font color=#FF0000 style=font-weight:bold>沒有找到符合該查詢條件的數據</font>";
13 ('btnExcel').disabled = false;
14 }
15 else
16 {
17 ('tipMsg').innerHTML = "<font color=#FF0000 style=font-weight:bold>警告:導出數據出錯</font>";
18 ('btnExcel').disabled = false;
19 }
20
21
22 }
2 {
3 if(resp.value == "OK")
4 {
5
6 ('tipMsg').innerHTML = "<img border=\"0\" src=\"images/s_progressbar.gif\"><font color=#FF0000 style=font-weight:bold>準備導出數據,請稍等
</font>";7 setTimeout("RedirectUrl()",1000);//延時體驗
8 }
9 else
10 if(resp.value == "NO")
11 {
12 ('tipMsg').innerHTML = "<font color=#FF0000 style=font-weight:bold>沒有找到符合該查詢條件的數據</font>";
13 ('btnExcel').disabled = false;
14 }
15 else
16 {
17 ('tipMsg').innerHTML = "<font color=#FF0000 style=font-weight:bold>警告:導出數據出錯</font>";
18 ('btnExcel').disabled = false;
19 }
20
21
22 }
1 function RedirectUrl()
2 {
3 ('tipMsg').innerHTML = "<img border=\"0\" src=\"images/ajaxloading.gif\"><font color=#7fffd4 style=font-weight:bold>正在讀寫報表文件,請稍後![]()
![]()
</font>";
4 var ajax = new ajax_request("ExcelReport.aspx?flag=ReportByTemp&"+Math.random(), "", "", ReportCallback);
5 function ReportCallback(resp)
6 {
7 if(resp.value != "Error" && resp.value !="")
8 {
9 ('btnExcel').disabled = false;
10 ('tipMsg').innerHTML = "<font color=#FF0000 style=font-weight:bold>數據導出成功!</font>";
11 Open("XLS_DownLoad.aspx?path="+resp.value);//window.location.href = resp.value;//
12 }
13 else
14 {
15 ('btnExcel').disabled = false;
16 ('tipMsg').innerHTML = "<font color=#FF0000 style=font-weight:bold>文件讀寫出錯,請檢查文件模板是否存在或對文件是否有讀寫權限!</font>";
17 }
18 }
19
20 }
21
22 function Open(url)
23 {
24 window.open(url,'newwindow','height=1,width=1,top=1500,left=1500,toolbar=no,menubar=no,scrollbars=yes,location=no,status=no')
25 }
2 {
3 ('tipMsg').innerHTML = "<img border=\"0\" src=\"images/ajaxloading.gif\"><font color=#7fffd4 style=font-weight:bold>正在讀寫報表文件,請稍後
</font>";4 var ajax = new ajax_request("ExcelReport.aspx?flag=ReportByTemp&"+Math.random(), "", "", ReportCallback);
5 function ReportCallback(resp)
6 {
7 if(resp.value != "Error" && resp.value !="")
8 {
9 ('btnExcel').disabled = false;
10 ('tipMsg').innerHTML = "<font color=#FF0000 style=font-weight:bold>數據導出成功!</font>";
11 Open("XLS_DownLoad.aspx?path="+resp.value);//window.location.href = resp.value;//
12 }
13 else
14 {
15 ('btnExcel').disabled = false;
16 ('tipMsg').innerHTML = "<font color=#FF0000 style=font-weight:bold>文件讀寫出錯,請檢查文件模板是否存在或對文件是否有讀寫權限!</font>";
17 }
18 }
19
20 }
21
22 function Open(url)
23 {
24 window.open(url,'newwindow','height=1,width=1,top=1500,left=1500,toolbar=no,menubar=no,scrollbars=yes,location=no,status=no')
25 }
ExcelReportCallback(resp)原本是一個回調函數，但是裏面調用了一個RedirectUrl()方法，這個方法又包含了一個回調函數，這樣就形成了回調的嵌套，之所以這麼做，是因爲，第一個回調是處理從數據庫取出數據成功與否，如果成功了跳轉到畫EXCEL的頁面，這樣的話會出現一個空白頁等生成好後出現下載框，後來覺得是否可以嵌套一個回調來繼續一次異步操作，這樣就不會出現長時間等待的空白頁面了，而是生成好EXCEL後返回地址，或者可以返回一個文件名到XLS_DownLoad.aspx頁面直接下載，但是XLS_DownLoad.aspx也是要出現的，我嘗試過讓下載後這個頁面自動關閉，無賴做不到，所以把Open()方法裏的數據值調得讓頁面不顯示，但是狀態欄還是有顯示的。
