/// <summary>
/// 返回一级选项下面的二级选项
/// </summary>
/// <param name="firstLevel">一级选名字</param>
/// <returns>二级选项名字</returns>
public static List <string> getSecondOptionName(string firstLevel)
{
List <string> ans = new List <string>();
foreach (Option op in LabelHelper.bindSecondLevel(firstLevel))
{
ans.Add(op.Name);
}
return(ans);
}
protected void dplFirstLevel_SelectedIndexChanged(object sender, EventArgs e)
{
gdvSecondLevel.DataSource = LabelHelper.bindSecondLevel(dplFirstLevel.SelectedValue);
gdvSecondLevel.DataBind();
}