ssrs - how to use a group by in the header
<p>My aim is to have that</p>

<p><a href="https://i.stack.imgur.com/W6Wvg.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/W6Wvg.png" alt="enter image description here"></a></p>

<p>I want to add a colum name, on my header that will be in a group. That column name will be linked to an existing group within the body of my report</p>

<p>This is what I've done </p>

<p><a href="https://i.stack.imgur.com/MGGab.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/MGGab.png" alt="enter image description here"></a></p>

<p>I tried to put a column name inside of a textbox , within the header </p>

<pre><code>=(Fields!EVENEMENTS_TYPE_LIBEL.Value, "DataSetEvtsLibel")
</code></pre>

<p>It did not work. The only thing possible is to have an agreggate (see below) </p>

<pre><code>=First(Fields!EVENEMENTS_TYPE_LIBEL.Value, "DataSetEvtsLibel")
</code></pre>

<p>I then created a parameter <code>Libel</code>, I've used a query to provide available values inside of the parameter.</p>

<p>It gives me the relevant field but alas it does not do the grouping.</p>

<p>I looked at the internet but I did not find anything relevant.</p>

<p>If you have any tips, they are more than welcomed.</p>

<p>Thanks</p>

<p><strong>Update</strong>: Should I mention I'm talking about <strong>Page header</strong></p>