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i considering developing software safely storing files on server. let's have secret document stored on client computer want upload server. requirements here file on server should encrypted @ times , since private key on client, unreadable accessing server directly. maybe can javascript or maybe need develop full fledged app handle upload. either way ok need able download , decrypt file using web browser only. this got me thinking. can configure https (ssl) in way can precalculate encrypted response server client. in case can while uploading , when document requested can return pre-encrypted data decrypted ssl stack on client. i know there random number exchange prevents this. there way configure ssl response server client same always. in case replay attacks server client acceptable , not issue. in ssl handshake, client generates pre-master secret used derive session key. since appear have control on server, cannot prevent client steering conversation in particula...

for unknown reason code doesn't seem working. have checked on google, no 1 else seems have same problem. bug php? the error get: warning: mysqli_stmt::bind_param() [mysqli-stmt.bind-param]: number of variables doesn't match number of parameters in prepared statement in /home/a9684274/public_html/system/db.php on line 102 the code: $stmt = $mysqli->prepare("select * users username='?'") $name = "vilsol"; $stmt->bind_param("s", $name); thanks in advance! remove single quotes ' : $stmt = $mysqli->prepare("select * users username=?") in code interpreted string value , not parametrizable value.

will code matlab r2012b work in matlab r2013a environment? i not sure if should switch matlab r2012b matlab r2013a? heard there nice new features, major concern whether code 2012b work 2013a. please let me know if have major warnings this. thanks it very rare new version incompatible code of previous versions (unless upgrade dinosaur versions).

i want show error panel on row updating not show error panel. what's wrong code? protected void grades_gridview_rowupdating(object sender, gridviewupdateeventargs e) { string lettergrade = grades_gridview.datakeys[e.rowindex].values["letter_grade"].tostring(); textbox txtmingrade = (textbox)grades_gridview.rows[e.rowindex].findcontrol("txtmingrade"); textbox txtmaxgrade = (textbox)grades_gridview.rows[e.rowindex].findcontrol("txtmaxgrade"); if (convert.todecimal(txtmingrade.text) > convert.todecimal(txtmaxgrade.text)) { panelerror.visible = true; labelerrorstring.text = "minimum grade must not greater maximum grade!"; } else { admin.updategraderanges(lettergrade, txtmingrade.text, txtmaxgrade.text); } grades_gridview.editindex = -1; fillgraderangesingrid(); }

i use pdf generate pdf , save server this: $fp = fopen( '$createdid.'.pdf', 'wb' ); fwrite( $fp, $pdf->output('example_009.pdf', 's')); fclose( $fp ); a user design on our site move onto php page calls above code want them redirect cart can checkout. using jquery(document).ready(function() {redirect() }) doesn't seem wait pdf finish before redirecting. tried embedding large image pdf test...i tried leaving page straight away make sure output , saving isn't happening behind scenes after leaving page. how should make sure page isn't redirected until pdf created , saved server? thanks, joe an overview of i'm doing below - e.g building pdf obj, outputting pdf obj hoping redirect page after pdf completed // init pdf obj $pdf2 = new tcpdf(pdf_page_orientation, pdf_unit, pdf_page_format, true, 'utf-8', false); // set defaults setpdfdefaults($pdf2,$pl,$resolution); // add bg addbackground($p...

basically, when continue onto next form timer still running, how can stop this? have used "timer1.enabled = false" private sub timer1_tick(sender object, e eventargs) handles timer1.tick msgbox("sorry, time has expired. please try again.", vbokonly, "warning") me.close() end sub i think using windows timer. if true first message box has unwanted side effect accumulate number of tick events in message queue of program. more time stay in video message box displayed more message boxes displayed because messages accumulate in queue you try solve situation global form variable dim timeelapsed boolean private sub timer1_tick(sender object, e eventargs) handles timer1.tick if timeelapsed = false timeelapsed = true ' important set immediatly true msgbox("sorry, time has expired. please try again.", vbokonly, "warning") me.close() dim t = ctype(sende...

i've little , simple question regarding lesscss. how can calculated value in percentage or pixel in lesscss. like, have : ((1 / 1) * 1) = 1 . know answer 1 , want "1" in percentage or pixel this: "1%" or "1px" . i need insert or put percentage (%) or pixel (px) sign in calculated value. i'd appreciate help. use: unit(@yourvalue,px) or unit(@yourvalue,~"%") read more here additional note: default first occurring unit in calculation assigned result. example unit((1 / 2 * 3),px); , (1px / 2% * 3rem) both return 1.5px .