## GroupColumns(int, int) {#groupcolumns}

Groups columns.

```csharp
public void GroupColumns(int firstIndex, int lastIndex)
```

| Parameter | Type | Description |
| --- | --- | --- |
| firstIndex | Int32 | The first column index to be grouped. |
| lastIndex | Int32 | The last column index to be grouped. |

### See Also

* class [GridCells](../)
* namespace [Aspose.Cells.GridWeb.Data](../../../aspose.cells.gridweb.data/)
* assembly [Aspose.Cells.GridWeb](../../../)

---

## GroupColumns(int, int, bool) {#groupcolumns_1}

Groups columns.

```csharp
public void GroupColumns(int firstIndex, int lastIndex, bool isHidden)
```

| Parameter | Type | Description |
| --- | --- | --- |
| firstIndex | Int32 | The first column index to be grouped. |
| lastIndex | Int32 | The last column index to be grouped. |
| isHidden | Boolean | Specifies if the grouped columns are hidden. |

### See Also

* class [GridCells](../)
* namespace [Aspose.Cells.GridWeb.Data](../../../aspose.cells.gridweb.data/)
* assembly [Aspose.Cells.GridWeb](../../../)