作为一个单元格选入DataTable

Question

将特定[Column] [Row]值存入DataTable的最佳方法是什么？

private DataTable CurrentTable { get; set; } 
    public string selectCell(int Column, int Row) 
    { 
     return CurrentTable............ 
    } 

Answer 1

使用适当的索引：

public string selectCell(int Column, int Row) 
{ 
    if (CurrentTable.Rows.Count <= Row) // zero based indices 
     throw new ArgumentException("Invalid number of rows in selectCell", "Row"); 
    if (CurrentTable.Columns.Count <= Column) 
     throw new ArgumentException("Invalid number of columns in selectCell", "Column"); 
    var row = CurrentTable.Rows[Row]; 
    // remove following check if you want to return "" instead of null 
    // but then you won't know if it was an empty or an undefined value 
    if (row.IsNull(Column)) 
     return null; 
    return row[Column].ToString(); 
} 

您也可以使用输入Field extension method也支持可空类型，但因为你想用这种方法对所有字段，最好使用Object.ToString如图所示以上。