datagridview刪除單元格背景色C＃

Question

對於每一行，它將對所有具有黃色綠色背景色的單元進行計數，並關聯行名稱（即，在我的示例中，名稱為“老師”和“學生”，如標題為“ DD”的列中所示）。 是否可以刪除或禁用背景色？ 它根本不起作用。 你能幫我嗎？ 我嘗試了以下代碼：

dgv.DefaultCellStyle.SelectionBackColor = dgv.DefaultCellStyle.BackColor;

var dgv = new DataGridView();
dgv.Columns.Add("s1", "s1");
dgv.Columns.Add("s2", "s2");
dgv.Columns.Add("s3", "s3");
dgv.Columns.Add("s4", "s4");
dgv.Columns.Add("s5", "s5");
dgv.Columns.Add("s6", "s6");
dgv.Columns.Add("DD", "DD");    
dgv.Rows.Add("Fiona", "Lila", "Ben", "Ella", "Leon", "John", "Teachers");
dgv.Rows.Add("Jack", "Luke", "Fiona", "Sophie", "Lila", "Leon", "Students");
dgv.AllowUserToAddRows = false;
dgv.Rows[0].Cells[0].Style.BackColor = Color.YellowGreen;
dgv.Rows[0].Cells[2].Style.BackColor = Color.YellowGreen;
dgv.Rows[0].Cells[4].Style.BackColor = Color.YellowGreen;
dgv.Rows[2].Cells[2].Style.BackColor = Color.YellowGreen;
dgv.Rows[2].Cells[4].Style.BackColor = Color.YellowGreen;
dgv.Rows[2].Cells[5].Style.BackColor = Color.YellowGreen;

var sums = dgv.Rows.Cast<DataGridViewRow>()
    .Select(row => new { 
        Name = row.Cells[row.Cells.Cast<DataGridViewCell>().First(cell => cell.OwningColumn.HeaderText == "DD").ColumnIndex].Value , 
        Count = row.Cells.Cast<DataGridViewCell>().Count(c => c.Style.BackColor == Color.YellowGreen)})
    .ToList();

var lb = new ListBox();
sums.ForEach(s => lb.Items.Add($"{s.Name}: {s.Count}")); 

Answer 1

您能否刪除以下代碼行：

dgv.DefaultCellStyle.SelectionBackColor = dgv.DefaultCellStyle.BackColor;

dgv.Rows[0].Cells[0].Style.BackColor = Color.YellowGreen;
dgv.Rows[0].Cells[2].Style.BackColor = Color.YellowGreen;
dgv.Rows[0].Cells[4].Style.BackColor = Color.YellowGreen;
dgv.Rows[2].Cells[2].Style.BackColor = Color.YellowGreen;
dgv.Rows[2].Cells[4].Style.BackColor = Color.YellowGreen;
dgv.Rows[2].Cells[5].Style.BackColor = Color.YellowGreen;

@ Marcel16如果此答案對您有幫助，請單擊接受鳥 ，好嗎？ :)