创build一个列的所有行作为一个下拉列表在Excel表中使用C＃

我的要求是导出一个空白的excel工作表，其中包含所有行的第一列作为下拉列表的3列，以便用户可以使用此工作表来根据需要修改数据。 我正在使用c＃来导出文件。

我已经在这方面做了工作，但目前，它只在特定的单元格中创build一个下拉列表，但我想将第一列的所有行作为下拉列表。

以下是我正在使用的代码：

object oMissing = System.Reflection.Missing.Value; Microsoft.Office.Interop.Excel.Application app; Microsoft.Office.Interop.Excel.Worksheet wksheet; Microsoft.Office.Interop.Excel.Workbook wkbook; app = new Microsoft.Office.Interop.Excel.Application(); app.Visible = false; wkbook = app.Workbooks.Add(true); wksheet = (Microsoft.Office.Interop.Excel.Worksheet)wkbook.ActiveSheet; string[] ddl_item = { "Answers", "Autos", "Finance", "Games", "Groups", "HotJobs", "Maps", "Mobile Web", "Movies", "Music", "Personals", "Real Estate", "Shopping", "Sports", "Tech", "Travel", "TV", "Yellow Pages" }; Microsoft.Office.Interop.Excel.Range xlsRange; xlsRange = wksheet.get_Range("A1", "A1"); Microsoft.Office.Interop.Excel.DropDowns xlDropDowns; Microsoft.Office.Interop.Excel.DropDown xlDropDown; xlDropDowns = ((Microsoft.Office.Interop.Excel.DropDowns)(wksheet.DropDowns(oMissing))); xlDropDown = xlDropDowns.Add((double)xlsRange.Left, (double)xlsRange.Top, (double)xlsRange.Width, (double)xlsRange.Height, true); //Add item into drop down list for (int i = 0; i < ddl_item.Count(); i++) { xlDropDown.AddItem(ddl_item[i], i + 1); } app.Visible = true; 

Answer 1

我刚刚看到你的问题，有点晚了，但你的问题是在你的范围内，你可以改变你的代码，以满足你的需求：

  //change your range Range range = worksheet.UsedRange; //this part makes all the in-range rows of first column as a dropdown list int row; for (row = 1; row <= range.Rows.Count; row++) { xlDropDowns = ((DropDowns) (worksheet.DropDowns(Type.Missing))); xlDropDown = xlDropDowns.Add((double) range[row, 1].Left, (double) range[row, 1].Top, (double) range[row, 1].Width, (double) range[row, 1].Height, true); string[] ddl_item = { "Answers", "Autos", "Finance", "Games", "Groups", "HotJobs", "Maps", "Mobile Web", "Movies", "Music", "Personals", "Real Estate", "Shopping", "Sports", "Tech", "Travel", "TV", "Yellow Pages" }; for (int i = 0; i < ddl_item.Count(); i++) { xlDropDown.AddItem(ddl_item[i], i + 1); } }