• Character and paragraph styles for a text field are controlled by instances of the TextFormat class.
• To set the formatting of a character or span of characters:
  
  • create a TextFormat object
  • set its properties
  • use TextField.setTextFormat() to apply the format to a text field's characters

// Create a text field.
this.createTextField("theField_txt", 1, 0, 0, 200, 20);
theField_txt.border = true;
theField_txt.text = "Press any key."

// Make the text format object.
format = new TextFormat();

// Set the text format object's properties.
format.bold = true;
format.size = 26;

// Apply the format to the whole field.
theField_txt.setTextFormat(format);

• This example add bullets to the beginning of each line in a text field.

this.createTextField("theField_txt", 1, 0, 0, 200, 60);
theField_txt.border = true;
theField_txt.text = "Item one.\nItem two.\nItem three."

// Make the text format object.
format = new TextFormat();
format.bullet = true;

// Make the whole field bulleted.
theField_txt.setTextFormat(format);

• Here are the character and paragraph styles that can be controlled via TextFormat properties:

align
Specifies horizontal paragraph alignment.

blockIndent
Specifies paragraph indentation.

bold
Boolean; specifies bold character display.

bullet
Specifies whether to add bullets to paragraphs.

color
Specifies character color.

font
Sets the font for specified characters.

indent
Specifies indentation for a paragraph's first line.

italic
Boolean; specifies italicized character display.

leading
Specifies line spacing.

leftMargin
Specifies width of the space to the left of a paragraph.

rightMargin
Specifies width of the space to the right of a paragraph.

size
Character font size, in points.

tabStops
Specifies horizontal tab stops, in points.

target
Specifies the window or frame for a hypertext link.

underline
Boolean; specifies underlined character display.

url
Specifies a hypertext link.