_text-has.cshtml

@using Connect.Razor.Blade;
<div>
    return to <a href="@Link.To()">overview</a>
</div>
<h1 class="sc-element">
  Razor Blade Text.Has
  @Edit.Toolbar(Content)
</h1>
<div>
    These demos show how to really check if a variable has text using Text.Has. This combines null-checks, empty checks, empty-html-nbsp-checks and more. 
</div>


<h2>Examples</h2>
<table class="demo">
  <tr>
    <th>Test</th>
    <th>Code</th>
    <th>Result with html-ignore</th>
    <th>...without html-ignore</th>
  </tr>
  <tr>
    <td>Null value </td>
    <td>Text.Has(null)</td>
    <td>@Text.Has(null)</td>
    <td>@Text.Has(null, false)</td>
  </tr>
  <tr>
    <td>Just spaces </td>
    <td>Text.Has("    ")</td>
    <td>@Text.Has("    ")</td>
    <td>@Text.Has("    ", false)</td>
  <tr>
    <td>text with only line breaks </td>
    <td>Text.Has("\n\n")</td>
    <td>@Text.Has("\n\n")</td>
    <td>@Text.Has("\n\n", false)</td>
  </tr>
  <tr>
    <td>text with tabs, whitespaces and line breaks </td>
    <td>Text.Has("\n\t  \n")</td>
    <td>@Text.Has("\n\t  \n")</td>
    <td>@Text.Has("\n\t  \n", false)</td>
  </tr>
  <tr>
    <td>text with only nbsp characters </td>
    <td>Text.Has("&amp;nbsp; &amp;nbsp;")</td>
    <td>@Text.Has("&nbsp; &nbsp;")</td>
    <td>@Text.Has("&nbsp; &nbsp;", false)</td>
  </tr>
  <tr>
    <td>text with char-code of nbsp characters </td>
    <td>Text.Has("&#35;160;")</td>
    <td>@Text.Has("&#160;")</td>
    <td>@Text.Has("&#160;", false)</td>
  </tr>
  <tr>
    <td>real text </td>
    <td>Text.Has("real text")</td>
    <td>@Text.Has("real text")</td>
    <td>@Text.Has("real text", false)</td>
  </tr>
  <tr>
    <td>Real text with nbps etc.</td>
    <td>Text.Has("real\n text &amp;nbsp;")</td>
    <td>@Text.Has("real\n text &nbsp;")</td>
    <td>@Text.Has("real\n text &nbsp;", false)</td>
  </tr>
</table>

<h2>Special case: &lt;BR&gt; Whitespace</h2>

<ul>
  <li>If your string is like Text.Has("&lt;br&gt;")</li>
  <li>...then it will return: @Text.Has("<br>")</li>
  <li>If you want to ignore BRs, combine it with <a href='@Link.To(parameters: "tags=true")'>Tags.Br2Nl(...)</a> </li>
  <li>...resulting in: @Text.Has(Tags.Br2Nl("<br>"))</li>
</ul>



<style>
  table.demo td {
    white-space: pre-wrap;
  }
</style>