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    <p>Normally we <strong>don't</strong> add any child controls to a <code>Mdi Form</code>. When a <code>Form</code> is used as an <code>Mdi Form</code>, the only child it should contain is <code>MdiClient</code>. That <code>MdiClient</code> will contain your <code>child forms</code>. All the controls should be placed on the <code>Child forms</code>. However if you want so, we can still make it work</p> <p>There is a default <code>MdiClient</code> contained in a <code>Mdi Form</code>. We can find it in the <code>Controls</code> collection of the <code>Mdi Form</code>. It's type of <code>MdiClient</code>. This will be covered by all other controls of your <code>Mdi Form</code> and that's why your <code>Child forms</code> can't be brought on top by default. To solve it, simply we have to access to the <code>MdiClient</code> and call <code>BringToFont()</code> and whenever there isn't any <code>Child form</code> being <code>Visible</code>, we will call <code>SendToBack()</code> on the <code>MdiClient</code> to show the other controls of yours (button,images,label,dropdown etc). Here is the code for you to test:</p> <pre><code>public partial class Form1 : Form { public Form1() { InitializeComponent(); IsMdiContainer = true; //Find the MdiClient and hold it by a variable client = Controls.OfType&lt;MdiClient&gt;().First(); //This will check whenever client gets focused and there aren't any //child forms opened, Send the client to back so that the other controls can be shown back. client.GotFocus += (s, e) =&gt; { if (!MdiChildren.Any(x =&gt; x.Visible)) client.SendToBack(); }; } MdiClient client; //This is used to show a child form //Note that we have to call client.BringToFront(); private void ShowForm(Form childForm) { client.BringToFront();//This will make your child form shown on top. childForm.Show(); } //button1 is a button on your Form1 (Mdi container) //clicking it to show a child form and see it in action private void button1_Click(object sender, EventArgs e) { Form2 f = new Form2 { MdiParent = this }; ShowForm(f); } } </code></pre>
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    1. COReally good solution, with one caveat: if the user minimises the form instead of closing it, the lambda `GotFocus` event handler isn't fired, so the `MdiClient` doesn't go to the back again. Now this isn't necessarily a bad thing, since if it did that you wouldn't be able to see the minimised form, but it is something to be aware of.
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    2. CO@Adrian when the child form is minimized, the `MdiClient` should still be on top, it will be sent to back only when all the child forms are hidden/closed. That's by design.
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    3. COas I said, not necessarily a bad thing. I'm just thinking of it from the perspective of someone not totally familiar with how MDI works and what their expectations for use might be.
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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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