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Aspose.cells异步读写操作

  1 public class AsyncExcel : Excel
  2     {
  3         static readonly object _objForlock = new object();
  4         //public List<IAsyncResult> ReadAsyncResults
  5         //{
  6         //    get;
  7         //    set;
  8         //}
  9 
 10         //public List<IAsyncResult> WriteAsyncResults
 11         //{
 12         //    get;
 13         //    set;
 14         //}
 15         public override void Read()
 16         {
 17             if (string.IsNullOrEmpty(this.Path) || !System.IO.File.Exists(this.Path))
 18             {
 19                 throw new Exception(string.Format("文件“{0}”为空或不存在。", this.Path));
 20             }
 21             //ReadAsyncResults = new List<IAsyncResult>();
 22             Workbook wb = new Workbook();
 23             wb.Open(this.Path);
 24             MemoryDataTables = new System.Data.DataTable[wb.Worksheets.Count];
 25             object[] rowArrData;
 26             for (var i = 0; i < wb.Worksheets.Count; i++)
 27             {
 28                 MemoryDataTables[i] = new System.Data.DataTable();
 29                 MemoryDataTables[i].TableName = wb.Worksheets[i].Name;
 30                 for (var j = 0; j < wb.Worksheets[i].Cells.MaxColumn; j++)
 31                 {
 32                     //row = MemoryDataTables[i].NewRow();
 33                     //MemoryDataTables[i].Rows.Add(row);
 34                     rowArrData = new object[wb.Worksheets[i].Cells.MaxColumn];
 35                     for (var k = 0; k < wb.Worksheets[i].Cells.MaxColumn; k++)
 36                     {
 37                         rowArrData[k] = wb.Worksheets[i].Cells[j, k].Value;
 38                         if (CellAction != null)
 39                         {
 40                             CellAction.BeginInvoke(rowArrData[k], null, null);
 41                         }
 42                     }
 43                     if (RowAction != null)
 44                     {
 45                         RowAction.BeginInvoke(rowArrData, null, null);
 46                     }
 47                     if (DataTableRowOpAction != null)
 48                     {
 49                         DataTableRowOpAction.BeginInvoke(rowArrData, null, null);
 50                     }
 51                     
 52                 }
 53                 if (DataTableAction != null)
 54                 {
 55                     DataTableAction.BeginInvoke(MemoryDataTables[i], null, null);
 56                 }
 57             }
 58             wb = null;
 59         }
 60 
 61 
 62         public override void Write()
 63         {
 64             if (string.IsNullOrEmpty(this.Path))
 65             {
 66                 throw new Exception(string.Format("保存路径“{0}”为空。", this.Path));
 67             }
 68             if (MemoryDataTables == null || MemoryDataTables.Length <= 0)
 69             {
 70                 throw new Exception("没有数据写入。");
 71             }
 72             //WriteAsyncResults = new List<IAsyncResult>();
 73             Workbook wb = new Workbook();
 74             for (var i = 0; i < MemoryDataTables.Length; i++)
 75             {
 76                 wb.Worksheets.Add(MemoryDataTables[i].TableName);
 77                 wb.Worksheets[i].Cells.ImportDataRow(MemoryDataTables[i].Rows[0], 0, wb.Worksheets[i].Cells.MinColumn);
 78                 for (var j = 0; j < MemoryDataTables[i].Rows.Count; j++)
 79                 {
 80                     for (var k = 0; k < MemoryDataTables[i].Columns.Count; k++)
 81                     {
 82                         wb.Worksheets[i].Cells[j + 1, k].PutValue(MemoryDataTables[i].Rows[j][k]);
 83                         if (CellAction != null)
 84                         {
 85                             CellAction.BeginInvoke(wb.Worksheets[i].Cells[j + 1, k], null, null);
 86                         }
 87                     }
 88                     if (RowAction != null)
 89                     {
 90                         RowAction.BeginInvoke(MemoryDataTables[i].Rows[j].ItemArray, null, null);
 91                     }
 92                     if (DataTableRowOpAction != null)
 93                     {
 94                         DataTableRowOpAction.BeginInvoke(MemoryDataTables[i].Rows[j].ItemArray, null, null);
 95                     }
 96                 }
 97                 if (DataTableAction != null)
 98                 {
 99                     DataTableAction.BeginInvoke(MemoryDataTables[i], null, null);
100                 }
101             }
102             if (!System.IO.Directory.Exists(System.IO.Path.GetDirectoryName(this.Path)))
103             {
104                 System.IO.Directory.CreateDirectory(System.IO.Path.GetDirectoryName(this.Path));
105             }
106             wb.Save(System.IO.Path.GetFullPath(this.Path));
107         }
108 
109 
110         public Action<object[]> RowAction
111         {
112             get;
113             set;
114         }
115 
116         /// <summary>
117         /// 异步不会自动添加DataRow到DataTable,如果需要异步执行的最后结果，请在这个Action把Row添加到DataTable
118         /// </summary>
119         public Action<object[]> DataTableRowOpAction
120         {
121             get;
122             set;
123         }
124 
125         public Action<object> CellAction
126         {
127             get;
128             set;
129         }
130 
131         public Action<System.Data.DataTable> DataTableAction
132         {
133             get;
134             set;
135         }
136     }
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原文地址：https://www.cnblogs.com/yomho/p/3974331.html