1.創建excel方法 /// <summary> /// 創建Excel表格 /// </summary> /// <param name="dt">數據流</param> /// <param name="FileName">文件名稱</param> public static void Cre ...
1.創建excel方法
/// <summary> /// 創建Excel表格 /// </summary> /// <param name="dt">數據流</param> /// <param name="FileName">文件名稱</param> public static void CreateExcel(DataTable dt, string FileName) { StringBuilder strb = new StringBuilder(); strb.Append(" <html xmlns:o=\"urn:schemas-microsoft-com:office:office\""); strb.Append("xmlns:x=\"urn:schemas-microsoft-com:office:excel\""); strb.Append("xmlns=\"http://www.w3.org/TR/REC-html40\">"); strb.Append(" <head> <meta http-equiv='Content-Type' content='text/html; charset=gb2312'>"); strb.Append(" <style>"); strb.Append(".xl26"); strb.Append(" {mso-style-parent:style0;"); strb.Append(" font-family:\"Times New Roman\", serif;"); strb.Append(" mso-font-charset:0;"); strb.Append(" mso-number-format:\"@\";}"); strb.Append(" </style>"); strb.Append(" <xml>"); strb.Append(" <x:ExcelWorkbook>"); strb.Append(" <x:ExcelWorksheets>"); strb.Append(" <x:ExcelWorksheet>"); strb.Append(" <x:Name>Sheet1 </x:Name>"); strb.Append(" <x:WorksheetOptions>"); strb.Append(" <x:DefaultRowHeight>285 </x:DefaultRowHeight>"); strb.Append(" <x:Selected/>"); strb.Append(" <x:Panes>"); strb.Append(" <x:Pane>"); strb.Append(" <x:Number>3 </x:Number>"); strb.Append(" <x:ActiveCol>1 </x:ActiveCol>"); strb.Append(" </x:Pane>"); strb.Append(" </x:Panes>"); strb.Append(" <x:ProtectContents>False </x:ProtectContents>"); strb.Append(" <x:ProtectObjects>False </x:ProtectObjects>"); strb.Append(" <x:ProtectScenarios>False </x:ProtectScenarios>"); strb.Append(" </x:WorksheetOptions>"); strb.Append(" </x:ExcelWorksheet>"); strb.Append(" <x:WindowHeight>6750 </x:WindowHeight>"); strb.Append(" <x:WindowWidth>10620 </x:WindowWidth>"); strb.Append(" <x:WindowTopX>480 </x:WindowTopX>"); strb.Append(" <x:WindowTopY>75 </x:WindowTopY>"); strb.Append(" <x:ProtectStructure>False </x:ProtectStructure>"); strb.Append(" <x:ProtectWindows>False </x:ProtectWindows>"); strb.Append(" </x:ExcelWorkbook>"); strb.Append(" </xml>"); strb.Append(""); strb.Append(" </head> <body> <table align=\"center\" style='border-collapse:collapse;table-layout:fixed'> <tr>"); //寫列標題 int columncount = dt.Columns.Count; for (int columi = 0; columi < columncount; columi++) { strb.Append(" <td> <b>" + dt.Columns[columi] + " </b> </td>"); } strb.Append(" </tr>"); //寫數據 for (int i = 0; i < dt.Rows.Count; i++) { strb.Append(" <tr>"); for (int j = 0; j < dt.Columns.Count; j++) { strb.Append(" <td class='xl26'>" + dt.Rows[i][j].ToString() + " </td>"); } strb.Append(" </tr>"); } strb.Append(" </table>"); strb.Append(" </body> </html>"); HttpContext.Current.Response.Clear(); HttpContext.Current.Response.Buffer = true; HttpContext.Current.Response.Charset = "GB2312"; HttpContext.Current.Response.AppendHeader("Content-Disposition", "attachment;filename=" + FileName); HttpContext.Current.Response.ContentEncoding = System.Text.Encoding.GetEncoding("GB2312");//設置輸出流為簡體中文 HttpContext.Current.Response.ContentType = "application/ms-excel";//設置輸出文件類型為excel文件。 HttpContext.Current.Response.Write(strb); HttpContext.Current.Response.End(); }View Code
2.List集合轉DateTable，根據屬性特性[System.ComponentModel.Description("列名稱")]指定名稱，沒有指定名稱列則不會導出
#region List集合轉DateTable /// <summary> /// List集合轉DateTable /// </summary> /// <typeparam name="T">泛型類</typeparam> /// <param name="items">參數名</param> /// <returns></returns> private DataTable ToDataTable<T>(List<T> items) { var tb = new DataTable(typeof(T).Name); List<PropertyInfo> props = typeof(T).GetProperties(BindingFlags.Public | BindingFlags.Instance).ToList(); #region MyRegion //foreach (PropertyInfo prop in props) //{ // string name = ""; // //獲取特性值 // object[] da = prop.GetCustomAttributes(typeof(DescriptionAttribute), false); // if (da.Length != 0) // { // name = (da[0] as DescriptionAttribute).Description; // Type t = GetCoreType(prop.PropertyType); // tb.Columns.Add(name, t); // } // else // { // //name = prop.Name; // props.Remove(prop); // } //} #endregion for (int i = 0; i < props.Count; i++) { string name = ""; //獲取特性值 object[] da = props[i].GetCustomAttributes(typeof(DescriptionAttribute), false); if (da.Length != 0) { name = (da[0] as DescriptionAttribute).Description; Type t = GetCoreType(props[i].PropertyType); tb.Columns.Add(name, t); } else { //name = prop.Name; props.Remove(props[i]); i--; } } foreach (T item in items) { var values = new object[props.Count]; for (int i = 0; i < props.Count; i++) { values[i] = props[i].GetValue(item, null); } tb.Rows.Add(values); } return tb; } public static bool IsNullable(Type t) { return !t.IsValueType || (t.IsGenericType && t.GetGenericTypeDefinition() == typeof(Nullable<>)); } public static Type GetCoreType(Type t) { if (t != null && IsNullable(t)) { if (!t.IsValueType) { return t; } else { return Nullable.GetUnderlyingType(t); } } else { return t; } } #endregionView Code
3.創建數據源，調用方法
public void UserWithdrawExcelList() { //數據源，根據自己需要來取 List<UserWithdrawQueryViewModel> userList = UserWithdrawBLL.GetUserWithdrawListExcel(paramdic); DataTable dt = ToDataTable<UserWithdrawQueryViewModel>(userList); #region MyRegion //DataTable dt = new DataTable(); //dt.Columns.Add("用戶名", typeof(String)); //dt.Columns.Add("提現標題", typeof(String)); //dt.Columns.Add("提現總金額", typeof(String)); //dt.Columns.Add("實際到賬金額", typeof(String)); //dt.Columns.Add("提現手續費", typeof(String)); //dt.Columns.Add("提現賬戶", typeof(String)); //dt.Columns.Add("提現狀態", typeof(String)); //dt.Columns.Add("創建時間", typeof(DateTime)); //userList.TryForEach(t => //{ // dt.Rows.Add(new object[] { // t.UserName,t.WithTitle,t.WithTotalAmount,t.WithAmount,t.CounterFee,t.BankCode,t.StatusName,t.AddTime // }); //}); #endregion DataView dv = dt.DefaultView;//獲取表視圖 dv.ToTable();//轉為表 DataChangeExcel.CreateExcel(dt, DateTime.Now.ToString("yyyyMMddHHmmssffff") + ".xls"); }View Code
