# Selection.Bold Property

> Gets or sets the bold attribute of the selected text.

- **Product:** TX Text Control .NET for Windows Forms
- **Section:** Reference
- **Kind:** Property
- **Namespace:** `TXTextControl`
- **Package:** `TXTextControl.TextControl.WinForms.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 Windows Forms > Reference > TXTextControl > Selection.Bold Property
- **570 words**
- **Web URL:** https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/selection/bold-property/
- **LLMs URL:** https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/selection/bold-property/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/selection/bold-property/llms-full.txt

---

### Description

Gets or sets the bold attribute of the selected text.

### Syntax

```csharp
public bool Bold { get; set; }
```

```vbnet
Public Property Bold As Boolean
```

### Examples

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

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

selection.Bold = true;
if (selection.Bold)
{
    Console.WriteLine("Selection: Bold is enabled.");
}
```

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

selection.Bold = True
If selection.Bold Then
    Console.WriteLine("Selection: Bold is enabled.")
End If
```

### Limitations

Runtime only.

### Remarks

The property's default value is false.

The property returns its default value when the text selection contains multiple characters with mixed setting. The [Selection.IsCommonValueSelected](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/selection/iscommonvalueselected-method/llms-full.txt) method can be used to check for mixed attributes.

---

## Nearby

- **Previous:** [Selection.Baseline Property](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/selection/baseline-property/llms-full.txt)
- **Next:** [Selection.Capitals Property](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/selection/capitals-property/llms-full.txt)