Excel＆amp; EPPlus .NET库：如何从另一个工作表创建动态列表？

Question

我想在创建Excel文件（xlsx）时使用.NET EPPlus库从数据所在的不同工作表中创建基于数据列表（未知计数）的动态列表。我怎么能做到这一点？

Manual workflow in Excel 2007:
1.) click on sheet2 (dropdowns worksheet)
2.) add some data from cell A2:A4
3.) click on sheet1 (data worksheet) > highlight cells in some column > Data (menu) > Data Validation > Data Validation > Allow: List, Source: ='sheet2'!$A$2:$A$4 > click 'OK'

Answer 1

希望这会有所帮助。有关数据验证的更详细示例，请从codeplex下载EPPlus示例应用程序，并查看示例11。

// add a validation and set values
        var validation = sheet.DataValidations.AddListValidation("A1");
        // Alternatively:
        // var validation = sheet.Cells["A1"].DataValidation.AddListDataValidation();
        validation.ShowErrorMessage = true;
        validation.ErrorStyle = ExcelDataValidationWarningStyle.warning;
        validation.ErrorTitle = "An invalid value was entered";
        validation.Error = "Select a value from the list";
        validation.Formula.ExcelFormula = "B2:B4";