datagridview單元格的比較值如何為十進制類型

Question

我寫了這段代碼

(DataGridViewRow  dgRow in dgvMarksEntryForClass.Rows)
{
     if (dgRow.Cells["dgcolMarksObtain"].Value.GetType is decimal)
     {
         //some action
     }
     else { 
         //some action
     }
}

我如何檢查是否值

dgRow.Cells["dgcolMarksObtain"].Value.GetType

是十進制類型的？

Answer 1

您可以使用Decimal TryParse（）方法。

(DataGridViewRow  dgRow in dgvMarksEntryForClass.Rows)
{
    Decimal cellValue;
    if (Decimal.TryParse(dgRow.Cells["dgcolMarksObtain"].Value, out cellValue)
    {
         //some action
    }
    else
    {
        //some action
    }
}

Answer 2

decimal value;
if(Decimal.TryParse(dgRow.Cells["dgcolMarksObtain"].Value.ToString(), out value))
  // It's a decimal
else
  // No it's not.

Answer 3

嘗試這個-

(DataGridViewRow  dgRow in dgvMarksEntryForClass.Rows)
{
     if (dgRow.Cells["dgcolMarksObtain"].Value.GetType() is decimal)
     {
         //some action
     }
     else { 
         //some action
     }
}