Question

我需要使用openXml在excel文件的列/列中使用特定列表作为源创建一个下拉列表。

我出于此目的使用以下代码，

     SpreadsheetDocument spreadSheetDocument = SpreadsheetDocument.Open("C:\\Users\\Harun.TV\\Desktop\\OpenXml\\1.xlsx",true);

        WorkbookPart workbookpart = spreadSheetDocument.WorkbookPart;
        Workbook workbook=workbookpart.Workbook;


        WorksheetPart worksheetPart=workbookpart.WorksheetParts.First();            


        DataValidations dataValidations1 = new DataValidations();
        DataValidation dataValidation2 = new DataValidation() { Formula1 = new Formula1("'mySheet'!$A$1:$A$4"), Type = DataValidationValues.List, AllowBlank = true, ShowInputMessage = true, ShowErrorMessage = true, SequenceOfReferences = new ListValue<StringValue>() { InnerText = "A4:B4" } };
        Formula1 formula12 = new Formula1();
        formula12.Text = "$A$1:$A$3";
        dataValidations1.Append(dataValidation2);
        worksheetPart.Worksheet.Append(dataValidations1);

         workbookpart.Workbook.Save();


        spreadSheetDocument.Close();

打开excel时抛出错误。日志如下，

      <?xml version="1.0" encoding="UTF-8" standalone="true"?>
     -<recoveryLog xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main">     <logFileName>error055840_01.xml</logFileName>
      <summary>Errors were detected in file  'C:\Users\Harun.TV\Desktop\OpenXml\6.xlsx'</summary>
      -<removedParts summary="Following is a  list of removed parts:">     
       <removedPart>Replaced Part: /xl/worksheets/sheet3.xml part with XML error. Load error. Line 1, column 467.</removedPart></removedParts></recoveryLog>

另外，我如何将一个逗号分隔值列表分配给DataValidations并获得所需的结果，因为我们手动为excel列操作？

Answer 1

问题可能是已经存在＆＃34; DataValidatoins＆＃34;节点。这对我有用：

        DataValidation dataValidation = new DataValidation
        {
            Type = DataValidationValues.List,
            AllowBlank = true,
            SequenceOfReferences = new ListValue<StringValue>() { InnerText = "B1" },
            Formula1 = new Formula1("'SheetName'!$A$1:$A$3")
        };

        DataValidations dvs = worksheet.GetFirstChild<DataValidations>(); //worksheet type => Worksheet
        if (dvs != null)
        {
            dvs.Count = dvs.Count + 1;
            dvs.Append(dataValidation);
        }
        else
        {
            DataValidations newDVs = new DataValidations();
            newDVs.Append(dataValidation);
            newDVs.Count = 1;
            worksheet.Append(newDVs);
        }

Answer 2

我知道2年前的这个发布日期，但是我遇到了完全相同的问题，我找到了解决方案。

当我尝试使用C＃在我的excel文件中创建DataValidation时，在Excel中打开它时遇到了同样的问题。

如果检查WorkSheet对象，您会在里面找到几个Child。当你做＆＃34; workheet.Append（...）＆＃34;你只需要添加另一个孩子。

就我而言，我只是想知道孩子的顺序很重要！（事实上，我并没有创建所有的excel文件，我使用现有的文件修改了一些东西）

这里，孩子的顺序

SheetDimension
SheetViews
SheetFormatProperties
列
SheetData
DataValidations
PageMargins
PAGESETUP

在那里，我如何重新排序工作表孩子

            //workseet property is a Worksheet object
            var pageMargins = worksheet.GetFirstChild<PageMargins>();
            pageMargins.Remove();

            var pageSetup = worksheet.GetFirstChild<PageSetup>();
            pageSetup.Remove();

            DataValidations newDataValidations = new DataValidations();

            DataValidation dataValidation = new DataValidation()
            {
                Type = DataValidationValues.List,
                AllowBlank = true,
                SequenceOfReferences = new ListValue<StringValue>() { InnerText = "B2:B4" },
                Formula1 = new Formula1("\"test,great test\""),
                ShowErrorMessage = true,
                ShowInputMessage = true,
            };

            newDataValidations.Append(dataValidation);
            newDataValidations.Count = 1;
            worksheet.Append(newDataValidations);
            worksheet.Append(pageMargins);
            worksheet.Append(pageSetup);

所以要小心，如果将DataValidation添加到你做的最后一件事......

如何在c＃中使用OpenXml为excel文件的列/列设置数据验证列表？

2 个答案: