private string DelAttach(DataTable dt)
{
string needDel = "";
foreach (DataRow dr in dt.Rows)
{
needDel += dr["MsgID"] + ",";
if (string.IsNullOrEmpty(dr["AttachMent"].ToString()))
{
continue;
}
foreach (string vpath in dr["AttachMent"].ToString().Split(','))
{
SafeSC.DelFile(vpath);
}
}
return(needDel);
}