The LineType used by the InputField.
#pragma strict
// Required when Using UI elements.
public class Example {
    public var mainInputField;
    //When you press a button, this method is called.
    public function ChangeInputField(type) {
        if (type == 0) {
            //Change the input field to "Single Line" line type.
            mainInputField.GetComponent.<InputField>().lineType = InputField.LineType.SingleLine;
        }
        elseif (type == 1) {
            //Change the input field to "MultiLine Newline" line type.
            mainInputField.GetComponent.<InputField>().lineType = InputField.LineType.MultiLineNewline;
        }
        elseif (type == 2) {
            //Change the input field to "MultiLine Submit" line type.
            mainInputField.GetComponent.<InputField>().lineType = InputField.LineType.MultiLineSubmit;
        }
    }
}
        using UnityEngine; using System.Collections; using UnityEngine.UI; // Required when Using UI elements.
public class Example : MonoBehaviour { public GameObject mainInputField;
//When you press a button, this method is called. public void ChangeInputField(int type) { if (type == 0) { //Change the input field to "Single Line" line type. mainInputField.GetComponent<InputField>().lineType = InputField.LineType.SingleLine; } else if (type == 1) { //Change the input field to "MultiLine Newline" line type. mainInputField.GetComponent<InputField>().lineType = InputField.LineType.MultiLineNewline; } else if (type == 2) { //Change the input field to "MultiLine Submit" line type. mainInputField.GetComponent<InputField>().lineType = InputField.LineType.MultiLineSubmit; } } }