protected void btnUpdate_Click(object sender, EventArgs e)
        {
            GA       gAdmin        = new GA();
            Property propertyAlter = new Property();
            Property propertyNow   = new Property();

            propertyNow.PropertyName   = drpNewProname.SelectedItem.Text;
            propertyAlter.PropertyName = tbxDelupdate.Text;
            if (gAdmin.PoIsRepeat(propertyAlter) == true)//不重复
            {
                if (gAdmin.AlterPoName(propertyNow, propertyAlter))
                {
                    this.lblCheck.Text = "修改成功!";
                    //this.Page.ClientScript.RegisterStartupScript(this.GetType(), "", "<script language='javascript'>alert('" + "修改成功" + "');</script>");
                }
                else
                {
                    this.lblCheck.Text = "修改失败!";
                    //this.Page.ClientScript.RegisterStartupScript(this.GetType(), "", "<script language='javascript'>alert('" + "修改失败" + "');</script>");
                }
            }
            else
            {
                this.lblCheck.Text = "该属性存在无法修改!";
                //this.Page.ClientScript.RegisterStartupScript(this.GetType(), "", "<script language='javascript'>alert('" + "该属性存在无法修改" + "');</script>");
            }
        }