# InputFormat.LineSpacing Property

> Gets or sets the line spacing, in percent, at the current input position. If text is selected, the property specifies the line spacing of the whole selected text.

- **Product:** TX Text Control .NET for WPF
- **Section:** Reference
- **Kind:** Property
- **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 > InputFormat.LineSpacing Property
- **729 words**
- **Web URL:** https://docs.textcontrol.com/tx-text-control-dotnet-wpf/reference/txtextcontrol/inputformat/linespacing-property/
- **LLMs URL:** https://docs.textcontrol.com/tx-text-control-dotnet-wpf/reference/txtextcontrol/inputformat/linespacing-property/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/tx-text-control-dotnet-wpf/reference/txtextcontrol/inputformat/linespacing-property/llms-full.txt

---

### Description

Gets or sets the line spacing, in percent, at the current input position. If text is selected, the property specifies the line spacing of the whole selected text.

### Syntax

```csharp
public int? LineSpacing { get; set; }
```

```vbnet
Public Property LineSpacing As Integer?
```

### Examples

The following XAML example shows how to bind the LineSpacing property to a checkable menu item using the [WPF.BooleanConverter](https://docs.textcontrol.com/tx-text-control-dotnet-wpf/reference/txtextcontrol-wpf/booleanconverter/llms-full.txt) class.

```plaintext
…
xmlns:tx="clr-namespace:TXTextControl.WPF;assembly=TXTextControl.WPF"
…
<Window.Resources>
    <tx:BooleanConverter x:Key="boolConv" />
</Window.Resources>
…
<MenuItem
    Header="1.5"
    IsCheckable="True"
    IsChecked="{Binding
        ElementName=textControl1,
        Path=InputFormat.LineSpacing,
        Converter={StaticResource boolConv},
        ConverterParameter=150}" />
```

The following example changes the formatting applied to text entered at the end of a document by using `InputFormat.LineSpacing`.

```csharp
textControl.Text = "Project summary";
textControl.InputPosition = new InputPosition(textControl.Text.Length);
InputFormat inputFormat = textControl.InputFormat;

inputFormat.LineSpacing = 720;
if (inputFormat.LineSpacing != null)
{
    Console.WriteLine("Input Format: Line Spacing is available.");
}
```

```vbnet
textControl.Text = "Project summary"
textControl.InputPosition = New InputPosition(textControl.Text.Length)
Dim inputFormat As InputFormat = textControl.InputFormat

inputFormat.LineSpacing = 720
If inputFormat.LineSpacing IsNot Nothing Then
    Console.WriteLine("Input Format: Line Spacing is available.")
End If
```

### Remarks

The property returns null when the text selection contains multiple paragraphs with different line spacing.

---

## Nearby

- **Previous:** [InputFormat.LeftToRight Property](https://docs.textcontrol.com/tx-text-control-dotnet-wpf/reference/txtextcontrol/inputformat/lefttoright-property/llms-full.txt)
- **Next:** [InputFormat.NumberedList Property](https://docs.textcontrol.com/tx-text-control-dotnet-wpf/reference/txtextcontrol/inputformat/numberedlist-property/llms-full.txt)