/// <summary>
/// 根据班级查询学生列表
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void BtnQuery_Click(object sender, EventArgs e)
{
if (this.cboClass.SelectedIndex == -1)
{
MessageBox.Show("请选择班级", "提示信息");
return;
}
var studentClassId = Convert.ToInt32(this.cboClass.SelectedValue);
StudentClass studentClass = new StudentClass()
{
ClassId = studentClassId
};
var studentsList = studentClassService.QueryStudentsByClassId(studentClass);
if (studentsList.Count == 0)
{
this.dgvStudentList.DataSource = null;
MessageBox.Show("查询结果为空！", "提示信息");
return;
}
this.dgvStudentList.DataSource = null;
this.dgvStudentList.DataSource = studentsList;
this.dgvStudentList.ClearSelection();
}