## Shape.FormatCharacters method

Formats some characters with the font setting.

```csharp
public void FormatCharacters(int startIndex, int length, Font font, StyleFlag flag)
```

| Parameter | Type | Description |
| --- | --- | --- |
| startIndex | Int32 | The start index. |
| length | Int32 | The length. |
| font | Font | The font setting. |
| flag | StyleFlag | The flag of the font setting. |

### Examples

```csharp
using System;
using Aspose.Cells;
using Aspose.Cells.Drawing;

namespace AsposeCellsExamples
{
    public class ShapeMethodFormatCharactersWithInt32Int32FontStyleFlagDemo
    {
        public static void Run()
        {
            Workbook workbook = new Workbook();
            Worksheet worksheet = workbook.Worksheets[0];
            
            // Add a text box to the worksheet
            Shape textBox = worksheet.Shapes.AddTextBox(0, 0, 100, 100, 200, 50);
            textBox.Text = "Sample Text Formatting";
            
            // Create a font with desired properties
            Aspose.Cells.Font font = textBox.Font;
            font.Name = "Arial";
            font.Size = 12;
            font.IsBold = true;
            
            // Create style flag to specify which properties to apply
            StyleFlag flag = new StyleFlag();
            flag.FontName = true;
            flag.FontSize = true;
            flag.FontBold = true;
            
            // Apply formatting to specific characters
            textBox.FormatCharacters(0, 6, font, flag);
            
            // Save the workbook
            workbook.Save("output.xlsx");
        }
    }
}
```

### See Also

* class [Font](../../../aspose.cells/font/)
* class [StyleFlag](../../../aspose.cells/styleflag/)
* class [Shape](../)
* namespace [Aspose.Cells.Drawing](../../../aspose.cells.drawing/)
* assembly [Aspose.Cells](../../../)