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    <p>Heres an example I put up awhile on my lame blog. Say you wanted to update a label from a worker thread. I've got 4 examples of how to update that label from 1 to 50 using delegates, anon delegates and 2 types of lambdas.</p> <pre><code> private void button2_Click(object sender, EventArgs e) { BackgroundWorker worker = new BackgroundWorker(); worker.DoWork += new DoWorkEventHandler(worker_DoWork); worker.RunWorkerAsync(); } private delegate void UpdateProgDelegate(int count); private void UpdateText(int count) { if (this.lblTest.InvokeRequired) { UpdateProgDelegate updateCallBack = new UpdateProgDelegate(UpdateText); this.Invoke(updateCallBack, new object[] { count }); } else { lblTest.Text = count.ToString(); } } void worker_DoWork(object sender, DoWorkEventArgs e) { /* Old Skool delegate usage. See above for delegate and method definitions */ for (int i = 0; i &lt; 50; i++) { UpdateText(i); Thread.Sleep(50); } // Anonymous Method for (int i = 0; i &lt; 50; i++) { lblTest.Invoke((MethodInvoker)(delegate() { lblTest.Text = i.ToString(); })); Thread.Sleep(50); } /* Lambda using the new Func delegate. This lets us take in an int and * return a string. The last parameter is the return type. so * So Func&lt;int, string, double&gt; would take in an int and a string * and return a double. count is our int parameter.*/ Func&lt;int, string&gt; UpdateProgress = (count) =&gt; lblTest.Text = count.ToString(); for (int i = 0; i &lt; 50; i++) { lblTest.Invoke(UpdateProgress, i); Thread.Sleep(50); } /* Finally we have a totally inline Lambda using the Action delegate * Action is more or less the same as Func but it returns void. We could * use it with parameters if we wanted to like this: * Action&lt;string&gt; UpdateProgress = (count) =&gt; lblT…*/ for (int i = 0; i &lt; 50; i++) { lblTest.Invoke((Action)(() =&gt; lblTest.Text = i.ToString())); Thread.Sleep(50); } } </code></pre>
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    1. POWhat is the difference between lambdas and delegates in the .NET Framework?
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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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