关于excel操作的一些记录

Posted 2021-12-28 若白过隙

根据index获取列编号，如传入1，得到A

public string Getzm(int Index)

var dividend = Index;
string columnName = string.Empty;

while (dividend > 0)

var modulo = (dividend - 1) % 26;
columnName = Convert.ToChar(65 + modulo) + columnName;
dividend = (dividend - modulo) / 26;

return columnName;

合并单元格

ExcelWorksheet ws

ws.Cells[$"startName:endName"].Style.HorizontalAlignment = ExcelHorizontalAlignment.Center;
ws.Cells[$"startName:endName"].Style.VerticalAlignment = ExcelVerticalAlignment.Center;
ws.Cells[$"startName:endName"].Merge = true;

注意，必须用ws.Cells[$"A1:C1"]这种方式而不是ws.Cells[1,1,1,3]这种，会报错

设置单元格格式

var cell = ws.Cells[$"startName:endName"]

cell.Style.Numberformat.Format = "yyyy-m-d";