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Excel Interop庫中的範圍有Left
和Top
屬性。這些是MSDN中所述的類型Object
。試圖將結果轉換爲浮點數會導致錯誤。Howto read Range.Top in Excel interop
代碼:
var lastcell = sheet.Cells[row, 1] as Excel.Range;
var topOffset = (float)(lastcell.Top);
錯誤:
Specified cast is not valid.
我怎樣才能檢索到的價值爲float(或雙..)?