YII2 add colspan in gridview header -


how add colspan in header in gridview??

normally header looks this...

<table class="table">         <thead>             <tr>               <th>header1</th>               <th>header2</th>               <th>header3</th>               <th>header4</th>               <th>headera1</th>               <th>headera2</th>               <th>headera3</th>               <th>headerb1</th>               <th>headerb2</th>               <th>headerb3</th>             </tr>         </thead>         <tbody>             <tr>                 <td>body1</td>                 <td>body2</td>                 <td>body3</td>                 <td>body4</td>                 <td>body5</td>                 <td>body6</td>                 <td>body7</td>                 <td>body8</td>                 <td>body9</td>                 <td>body10</td>             </tr>         </tbody>     </table>

enter image description here

i want make this...

<table class="table">         <thead>             <tr>               <th rowspan=2>header1</th>               <th rowspan=2>header2</th>               <th rowspan=2>header3</th>               <th rowspan=2>header4</th>                 <th colspan=3>header a</th>                 <th colspan=3>header b</th>             </tr>             <tr>                <th>a1</th>               <th>a2</th>               <th>a3</th>               <th>b1</th>               <th>b2</th>               <th>b3</th>             </tr>         </thead>         <tbody>             <tr>                 <td>body1</td>                 <td>body2</td>                 <td>body3</td>                 <td>body4</td>                 <td>body5</td>                 <td>body6</td>                 <td>body7</td>                 <td>body8</td>                 <td>body9</td>                 <td>body10</td>             </tr>         </tbody>     </table>

enter image description here

this not possible without extending , rewriting grid view widget. take @ kartik gridview. if take @ demo can see has functionality need.


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