# Selection.GrowFont Method

> Increases the font size of each font contained in the current text selection. If no text is selected, this method increases the font size at the text input position. The font sizes used with this method are the same as shown through the ButtonBar or the built-in font dialog.

- **Product:** TX Text Control .NET for WPF
- **Section:** Reference
- **Kind:** Method
- **Introduced:** 16.0
- **Namespace:** `TXTextControl`
- **Package:** `TXTextControl.TextControl.WPF.SDK` (assembly `TXTextControl.dll`, from the private NuGet feed or Text Control Offline Packages)
- **.NET Framework:** reference `TXTextControl.dll` from the setup
- **Path:** TX Text Control .NET for WPF > Reference > TXTextControl > Selection.GrowFont Method
- **543 words**
- **Web URL:** https://docs.textcontrol.com/tx-text-control-dotnet-wpf/reference/txtextcontrol/selection/growfont-method/
- **LLMs URL:** https://docs.textcontrol.com/tx-text-control-dotnet-wpf/reference/txtextcontrol/selection/growfont-method/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/tx-text-control-dotnet-wpf/reference/txtextcontrol/selection/growfont-method/llms-full.txt

---

### Description

Increases the font size of each font contained in the current text selection. If no text is selected, this method increases the font size at the text input position. The font sizes used with this method are the same as shown through the [ButtonBar](https://docs.textcontrol.com/tx-text-control-dotnet-wpf/reference/txtextcontrol-wpf/buttonbar/llms-full.txt) or the built-in font dialog.

### Syntax

```csharp
public bool GrowFont();
```

```vbnet
Public Function GrowFont() As Boolean
```

### Return Value

The return value is true, if at least one font size could be changed. It is false, if the maximum value has been reached.

### Examples

The following example formats the heading of a short document by using `Selection.GrowFont`.

```csharp
textControl.Text = "Quarterly results\nRevenue increased by 12%.";
textControl.Select(0, 17);
Selection selection = textControl.Selection;

if (selection.GrowFont())
{
    Console.WriteLine("Grow Font completed successfully.");
}
```

```vbnet
textControl.Text = "Quarterly results" & vbCrLf & "Revenue increased by 12%."
textControl.Select(0, 17)
Dim selection As Selection = textControl.Selection

If selection.GrowFont() Then
    Console.WriteLine("Grow Font completed successfully.")
End If
```

---

## Nearby

- **Previous:** [Selection.FormattingStyle Property](https://docs.textcontrol.com/tx-text-control-dotnet-wpf/reference/txtextcontrol/selection/formattingstyle-property/llms-full.txt)
- **Next:** [Selection.IncreaseIndent Method](https://docs.textcontrol.com/tx-text-control-dotnet-wpf/reference/txtextcontrol/selection/increaseindent-method/llms-full.txt)