C# DataGridView选中行时字体颜色或背景色发生改变

点击按钮之前效果：

点击按钮之后的效果：

实现按钮点击代码：

//以下代码都可以试试private void Button_Delete_leave_Click(object sender, EventArgs e){DataGridView_Participants.SelectedRows[0].DefaultCellStyle.SelectionForeColor = Color.Red;}/*private void dgv_RowEnter(object sender, EventArgs e){ DataGridView_Participants.SelectedRows[0].DefaultCellStyle.SelectionForeColor = Color.Red; //DataGridView_Participants.Rows[e.RowIndex].DefaultCellStyle.SelectionForeColor = Color.Red; }**/

//测试:背景色只能设置一次,不能根据选中行的某个值去判断赋值,if(){this.dgv.RowTemplate.DefaultCellStyle.SelectionForeColor = Color.Red;}else if(){this.dgv.RowTemplate.DefaultCellStyle.SelectionForeColor = Color.Yellow;}else{this.dgv.RowTemplate.DefaultCellStyle.SelectionForeColor = Color.Blue;}//this.dgvFaFangDMX.RowTemplate.DefaultCellStyle.SelectionForeColor = Color.Red;