title: WPF: TextBox materialDesign - how to Alignment HintAssist.Hint
body: <p>So I have this <code>TexBox</code>:</p>
  <pre><code>&lt;TextBox Height=&quot;30&quot;
           BorderThickness=&quot;0&quot;
           materialDesign:TextFieldAssist.HasFilledTextField=&quot;False&quot;
           materialDesign:TextFieldAssist.HasOutlinedTextField=&quot;False&quot;
           materialDesign:TextFieldAssist.DecorationVisibility=&quot;Hidden&quot;
           materialDesign:TextFieldAssist.UnderlineBrush=&quot;Transparent&quot;
           materialDesign:TextFieldAssist.TextBoxViewMargin=&quot;10,3,0,0&quot;
           materialDesign:TextFieldAssist.HasClearButton=&quot;True&quot;
           materialDesign:HintAssist.Hint=&quot;Search&quot;
           materialDesign:HintAssist.HelperTextFontSize=&quot;12&quot;
           materialDesign:HintAssist.IsFloating=&quot;False&quot;/&gt;
  </code></pre>
  <p>And I want to place my Hint (Search in my example) at the center of my <code>TexBox</code>.</p>
  <p>Al i can found is to change <code>TextFieldAssist.TextBoxViewMargin</code> but of course this effect the input <code>text</code> as well.</p>