C＃创建自定义类的列表。 值保存不正确

Question

我有一个自定义类“ Actions”，它正在加载2个属性：一个范围和一个名为“ Action”的字符串。 我正在使用range.find遍历一个excel文档来尝试存储范围列表。 但是，（并且我看到这只是设计使然。），每次我找到新范围时更改“ currentAct”属性的值时，它将为列表中所有对象设置属性之前已添加。 如何解决这个问题，使列表具有所有不同的值？

Excel.Workbook activeWorkBook = Globals.ThisAddIn.Application.ActiveWorkbook;
Excel.Worksheet activeWorkSheet = activeWorkBook.ActiveSheet;
Excel.Range colRange = activeWorkSheet.Columns["A:A"];
Excel.Range resultActionFirstRange = null;    
Excel.Range resultActionCurrentRange = null;

/*This is my custom list: ActionRangeList*/
List<Actions> ActionRangeList = new List<Actions>();

/* This is what I'm using to set the properties of the class before adding to the list */
Actions currentAct = new Actions();

string actionValue;
string DBName;
string TblName;
int actionCol;
int actionRow;

string searchActionLabel = "Action=>";
string searchDBLabel = "DatabaseName=>";
string searchTblLabel = "TableName=>";

        resultActionCurrentRange = colRange.Find(searchActionLabel, Type.Missing, Excel.XlFindLookIn.xlValues, Excel.XlLookAt.xlPart, Excel.XlSearchOrder.xlByRows, Excel.XlSearchDirection.xlNext, false, Type.Missing, Type.Missing);

        //get action
        while (resultActionCurrentRange != null)
        {
            if (resultActionFirstRange == null)
            {
                resultActionFirstRange = resultActionCurrentRange;
                actionCol = resultActionFirstRange.Column + 1;
                actionRow = resultActionFirstRange.Row;
                actionValue = (string)(activeWorkSheet.Cells[actionRow, actionCol] as Excel.Range).Value;
                currentAct.Action = actionValue;
                currentAct.actionRange = (Excel.Range)(activeWorkSheet.Cells[actionRow, actionCol]);
                ActionRangeList.Add(currentAct);
            }

            else if (resultActionCurrentRange.get_Address(Excel.XlReferenceStyle.xlA1) == resultActionFirstRange.get_Address(Excel.XlReferenceStyle.xlA1))
            {
                break;
            }
            //search for next range
            resultActionCurrentRange = colRange.FindNext(resultActionCurrentRange);
            //check if we looped back to the beginning yet
            if (resultActionCurrentRange.get_Address(Excel.XlReferenceStyle.xlA1) != resultActionFirstRange.get_Address(Excel.XlReferenceStyle.xlA1))
            {
                actionCol = resultActionCurrentRange.Column + 1;
                actionRow = resultActionCurrentRange.Row;
                actionValue = (string)(activeWorkSheet.Cells[actionRow, actionCol] as Excel.Range).Value;
                currentAct.Action = actionValue;
                currentAct.actionRange = (Excel.Range)(activeWorkSheet.Cells[actionRow, actionCol]);
                ActionRangeList.Add(currentAct);
            }
        }

    private class Actions
    {
      public Excel.Range actionRange { get; set; }
      public string Action { get; set; } 
    }

Answer 1

正如Anthony Pegram所说的，我只需要在每次循环迭代中创建一个新实例。 谢谢！