/// <summary>
    /// 重置密码
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    protected void btResetPsw_Click(object sender, EventArgs e)
    {
        Admin admin = new Admin();

        int length = 0;
        //胡媛媛添加,判断当前有无用户,2010-01-15
        if (GridView1.Rows.Count == 0)
        {
            Page.ClientScript.RegisterStartupScript(this.GetType(), "Alert",
           "<script>alert('当前已无任何用户!')</script>");
            return;
        }
        else
        {
            //胡媛媛添加,判断当前有无用户,2010-01-15
            for (int i = 0; i <= GridView1.Rows.Count - 1; i++)
            {
                //建立模板列中CheckBox控件的引用
                CheckBox chk = (CheckBox)GridView1.Rows[i].FindControl("chkCheck");
                if (chk.Checked == true)
                {
                    length++;
                }
            }
            if (length == 0)
            {
                Page.ClientScript.RegisterStartupScript(this.GetType(), "Alert",
                           "<script>alert('请先选中要重设密码的用户!')</script>");
                return;
            }
            int[] iTchIdArray = new int[length];

            int k = 0;
            for (int i = 0; i <= GridView1.Rows.Count - 1; i++)
            {
                //建立模板列中CheckBox控件的引用
                CheckBox chk = (CheckBox)GridView1.Rows[i].FindControl("chkCheck");
                if (chk.Checked == true)
                {
                    iTchIdArray[k] = Convert.ToInt32(GridView1.DataKeys[i].Value);
                    k++;
                }
            }

            try
            {
                admin.ResetTeachersPassword(iTchIdArray);

                Page.ClientScript.RegisterStartupScript(this.GetType(), "Alert",
                     "<script>alert('重置成功!')</script>");
                GridViewBind();
            }
            catch
            {
                Page.ClientScript.RegisterStartupScript(this.GetType(), "Alert",
                     "<script>alert('重置失败!')</script>");
            }
            //胡媛媛添加,去掉全选前面的复选框,2010-01-07
            finally
            {
                if (chkAll.Checked == true)
                {
                    chkAll.Checked = false;
                }
            }
            //胡媛媛添加,去掉全选前面的复选框,2010-01-07
        }
    }