UniformGrid
<pre><code class="language-csharp">&lt;UniformGrid Rows=&quot;3&quot; Columns=&quot;3&quot; FirstColumn=&quot;1&quot;&gt;
&lt;Button Content=&quot;1&quot;&gt;&lt;/Button&gt;
&lt;Button Content=&quot;2&quot;&gt;&lt;/Button&gt;
&lt;Button Content=&quot;3&quot;&gt;&lt;/Button&gt;
&lt;Button Content=&quot;4&quot;&gt;&lt;/Button&gt;
&lt;Button Content=&quot;5&quot;&gt;&lt;/Button&gt;
&lt;Button Content=&quot;6&quot;&gt;&lt;/Button&gt;
&lt;Button Content=&quot;7&quot;&gt;&lt;/Button&gt;
&lt;Button Content=&quot;8&quot;&gt;&lt;/Button&gt;
&lt;Button Content=&quot;9&quot;&gt;&lt;/Button&gt;
&lt;/UniformGrid&gt;</code></pre>