将存储为文本的数字转换为数字

Question

我有一个Excel工作簿,其中C列作为文本存储.将它转换为数字的C#语法是什么？我知道这个VBA会做这个工作

Range("C:C").Select
With Selection
    Selection.NumberFormat = "0.00%"
    .Value = .Value
End With

我用C#尝试了这个 - 但它将数字存储为文本.

ExcelWorksheet ws3 = pck.Workbook.Worksheets.Add("New Sheet");
ws3.Cells["A1"].LoadFromDataTable(tableforme, true);
ws3.View.FreezePanes(2, 4);
ws3.Cells["C:C"].Style.Numberformat.Format = "#,##0.00";
ws3.Cells["C:C"].Style.Numberformat.Format = "0%";

我必须在C#中做什么来转换作为文本存储的数字的列.

Answer 1

将单元格值转换为.NET类型适合我：

var values = new List<object[]>()
{ 
    new string[] { "0.001", "1.001", "2.002" }, 
    new string[] { "3.003", "4.004", "5.005" },
    new string[] { "6.006", "7.007", "8.008" }
};

using (var package = new ExcelPackage())
{
    var sheet = package.Workbook.Worksheets.Add("Sheet1");
    sheet.Cells["A1"].LoadFromArrays(values);
    foreach (var cell in sheet.Cells["C:C"])
    {
        cell.Value = Convert.ToDecimal(cell.Value);
    }
    sheet.Cells["C:C"].Style.Numberformat.Format = "#,##0.00";
    File.WriteAllBytes(OUTPUT, package.GetAsByteArray());
}