private void comCategorys_SelectedIndexChanged(object sender, EventArgs e)
{
if (taskList != null)
{
List <TaskItem> resultList = taskList.Where(q => q.CategroyName.Value == comCategorys.SelectedItem.ToString()).ToList();
this.dgvTask.RemoveBind();
this.dgvTask.ReBind(TaskItem.GetDataTable(resultList), false);
this.dgvTask.ClearSelection();
}
}
