只需编写以下方法

just write following method

public override void VerifyRenderingInServerForm(Control control)
    {

    }

请参阅以下链接

http://www.c-sharpcorner.com/UploadFile/DipalChoksi/exportxl_asp2_dc11032006003657AM/exportxl_asp /a> [^ ]

Refer below link

http://www.c-sharpcorner.com/UploadFile/DipalChoksi/exportxl_asp2_dc11032006003657AM/exportxl_asp2_dc.aspx[^]