protected void btnDelete_Click(object sender, EventArgs e)
{
string sellerNick = txtSellerName.Text.Trim();
if (MsgBLL.DeleteMsgHis(sellerNick, txt_StartTime1.Value, txt_EndTime1.Value, drpSendType.SelectedValue))
{
Response.Write("<script language='javascript'>alert('删除成功！');</script>");
}
else
{
Response.Write("<script language='javascript'>alert('删除失败！');</script>");
}
//重新绑定
MsgDataBind();
}