如何获得使用范围内的整个列？

我想获得一列，但限制它使用范围…

public static Excel.Application App = new Excel.Application(); public static Excel.Workbook WB; WB = App.Workbooks.Open("xxx.xls", ReadOnly: true); var sheet = (WB.Sheets[1] as Excel.Worksheet); // returns 65536 rows, I want only 82 (used range) sheet.get_Range("F:F"); sheet.UsedRange.get_Range("F:F").Rows.Count; // 65536 

我怎么才能得到它？

Answer 1

您可以使用

 sheet.UsedRange.Columns[6, Type.Missing].Rows.Count 

或这个

 sheet.UsedRange.Columns["F:F", Type.Missing].Rows.Count 

Answer 2

听起来就像你想用UsedRange和Column的Application.Intersect（“F：F”）

Answer 3

这是按列（或按行）读取Excel文件列的优化方法：

 static void ReadExcelFile(filename) { Excel.Application xlApp = new Excel.Application(); Excel.Workbook xlWorkBook = xlApp.Workbooks.Open(filename, 0, true, 5, "", "", true, Microsoft.Office.Interop.Excel.XlPlatform.xlWindows, "\t", false, false, 0, true, 1, 0); Excel.Worksheet xlWorkSheet = (Excel.Worksheet)xlWorkBook.Worksheets.get_Item(1); // 1st sheet // the entire table : Excel.Range range = xlWorkSheet.UsedRange; // range.Rows.Count, range.Columns.Count for (int col = 1; col <= range.Columns.Count; col++) { // this line does only one COM interop call for the whole column object[,] currentColumn = (object[,])range.Columns[col, Type.Missing].Value; double sum = 0; for (int i = 1; i < currentColumn.Length; i++) { object val = currentColumn[i, 1]; sum += (double)val; // only if you know that the values are numbers // if it was a string column : //Console.WriteLine("{0}",(string)val); } } }