Databases
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    <p>This will take a timestamp of when __doPostBack was called and then carry out the default behavior. </p> <p>The onbeforeunload event will only show your custom message when the difference between it's timestamp and the latest __doPostBack timestamp is greater than allowedWaitTime.</p> <p>Usage: include it anywhere in your page.</p> <h1>Update:</h1> <p>This will now handle WebForm_DoPostBackWithOptions also</p> <pre><code>(function ($) { if (typeof $ !== 'function') { throw new Error('jQuery required'); } /* The time in milliseconds to allow between a __doPostBack call and showing the onbeforeunload message. */ var allowedWaitTime = 100, timeStamp = new Date().getTime(), // Each function to override baseFuncs = { __doPostBack: this.__doPostBack, WebForm_DoPostBackWithOptions: this.WebForm_DoPostBackWithOptions }; // Set timeStamp when each baseFunc is called for (var baseFunc in baseFuncs) { (function (func) { this[func] = function () { var baseFunc = baseFuncs[func]; timeStamp = new Date().getTime(); if (typeof baseFunc === 'function') { baseFunc.apply(arguments.callee, arguments); } } })(baseFunc); } /* Form submit buttons don't call __doPostBack so we'll set timeStamp manually on click. */ $('input[type="submit"]').click(function () { timeStamp = new Date().getTime(); }); $(this).on('beforeunload', function (e) { // Only return string if allowedWaitTime has elapsed if (e.timeStamp - timeStamp &gt; allowedWaitTime) { return 'message'; } }); }).call(window, jQuery); </code></pre>
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    1. COThis seems to be the best solution. Thank you very much. I increased the allowedWaitTime to 100 as I found that a normal submit usually took 45ms.
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    2. COI also found this didn't work with buttons that called WebForm_DoPostBackWithOptions instead of __doPostBack, so I copied the code to override __doPostBack for WebForm_DoPostBackWithOptions.
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    3. COI've added support for WebForm_DoPostBackWithOptions so timeStamp will be set for both methods.
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

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