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    <p>If you are querying the database on every keypress - this is going to cause you some lag when typing fast (or even normally)</p> <p>You would be better off throttling the request, we use this to throttle on the dispatcher thread.</p> <pre><code>public static class DispatcherExtensions { private static Dictionary&lt;string, DispatcherTimer&gt; timers = new Dictionary&lt;string, DispatcherTimer&gt;(); private static readonly object syncRoot = new object(); public static string DelayInvoke(this Dispatcher dispatcher, string namedInvocation, Action action, TimeSpan delay, DispatcherPriority priority = DispatcherPriority.Normal) { lock (syncRoot) { if (String.IsNullOrEmpty(namedInvocation)) { namedInvocation = Guid.NewGuid().ToString(); } else { RemoveTimer(namedInvocation); } var timer = new DispatcherTimer(delay, priority, (s, e) =&gt; { RemoveTimer(namedInvocation); action(); }, dispatcher); timer.Start(); timers.Add(namedInvocation, timer); return namedInvocation; } } public static void CancelNamedInvocation(this Dispatcher dispatcher, string namedInvocation) { lock (syncRoot) { RemoveTimer(namedInvocation); } } private static void RemoveTimer(string namedInvocation) { if (!timers.ContainsKey(namedInvocation)) return; timers[namedInvocation].Stop(); timers.Remove(namedInvocation); } } </code></pre> <p>Assuming you are not using MVVM, you could easily use this like so in your button click</p> <pre><code>Dispatcher.CurrentDispatcher.DelayInvoke("UpdateSearch", YourMethodThatStartsBackgroundThread,Timespan.FromSeconds(1)); </code></pre> <p>Also worth a note : f you are using 4.5 there is the <a href="http://www.jonathanantoine.com/2011/09/21/wpf-4-5-part-4-the-new-bindings-delay-property/" rel="noreferrer">Delay</a> property on bindings you could look at.</p>
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    1. USRichard Friend
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    1. COThanks man, I'll check this out now !!
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      1. USXero
    2. COYessss!! Works like a charm! Very Helpful piece of code!
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    3. CO@Xero you'd probably benefit from looking into Microsoft's ReactiveExtensions. (Rx). A lot of the tutorials I saw made a point to show how you could very easily throttle queries.
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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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