title: Mat Table -How to select only one mat radio button in column of radio buttons
body: <p>How to set mat radio button when we make a primary that contact detail then save it shown on (image 1)
  <a href="https://i.stack.imgur.com/hWXK8.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/hWXK8.png" alt="image1"></a></p>
  
  <p>Shown (image 2) when we get detail on the click of Save button</p>
  
  <p><a href="https://i.stack.imgur.com/KTEkD.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/KTEkD.png" alt="image2"></a></p>
  
  <p>then shown on mat table (image 3)
  I want set selected only one radio button on getting the primary true before image shown</p>
  
  <p><a href="https://i.stack.imgur.com/afH4q.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/afH4q.png" alt="image3"></a></p>
  
  <p>there is a code for Mat radio button on the mat table </p>
  
  <pre><code>&lt;ng-container matColumnDef="primary" sticky&gt;
                  &lt;th mat-header-cell *matHeaderCellDef&gt;Primary &lt;/th&gt;
                  &lt;td mat-cell *matCellDef="let element;"&gt;
                    &lt;mat-radio-group&gt; 
                      &lt;mat-radio-button&gt;&lt;/mat-radio-button&gt;
                    &lt;/mat-radio-group&gt;
                  &lt;/td&gt;
                &lt;/ng-container&gt;
  </code></pre>