Asp.net show waiting indicator while refresh page (F5) -

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i use example in page , works ok submit cases.

http://www.aspsnippets.com/articles/display-loading-image-while-postback-calls-in-aspnet.aspx

but when user refresh page (by button refresh of brower or f5) indicator not shown. tried using unload/load event doesn't work. have ideas?

thanks in advance!

this how can css.

http://tjvantoll.com/2013/04/24/showing-a-css-based-loading-animation-while-your-site-loads/

html {       -webkit-transition: background-color 1s;       transition: background-color 1s;     } html, body {       /* loading indicator vertically centered ensure */       /* html , body elements take full viewport */        min-height: 100%; } html.loading {       /* replace #333 background-color of choice */       /* replace loading.gif loading image of choice */       background: #333 url('loading.gif') no-repeat 50% 50%;        /* ensures transition runs in 1 direction */      -webkit-transition: background-color 0;      transition: background-color 0;   }   body {         -webkit-transition: opacity 1s ease-in;          transition: opacity 1s ease-in;   }  html.loading body {      /* make contents of body opaque during loading */       opacity: 0;        /* ensures transition runs in 1 direction */     -webkit-transition: opacity 0;     transition: opacity 0; }

and once page load completed @ bottom can write javascript remove loading class.

$( "html" ).removeclass( "loading" );

here live example of site.

http://tjvantoll.com/demos/2013-04-24/loading.html


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