GUILayout.TextField doesn't accept inputs

Questions & Answers
1

Well, i’m pretty sure this is a common problem caused for insufficient knowledge, i tried veryfing other questions and threads but i don’t get them at all because they all have always something more specific as, for example, making a button dissapear or showing again depending on a certain state and some other things like that, but my problem is more simple i think.

I’m trying to learn networking since i want to make my game multiplayer, and, like in survivors, have a dialog to start the game as the server and another dialog to connect to another server, in which i want to have a Text Field to write the IP Address into. I managed to get my preferred layout look, but, i can’t type anything into the TextField, i read in other questions that i must make sure i’m not calling the content inside the textfield from any other function, so i only called it from function Start() to set it to a default value (“192.168.1.100”, only to test the connection, because this is my private IP at the moment), and i also tried to delete this call from Start() so it wouldn’t got changed never, but Unity says:

NullReferenceException: Object reference not set to an instance of an object
UnityEngine.TextEditor.ClampPos () (at C:/BuildAgent/work/7535de4ca26c26ac/Runtime/Export/TextEditor.cs:1185)
UnityEngine.GUI.DoTextField (Rect position, Int32 id, UnityEngine.GUIContent content, Boolean multiline, Int32 maxLength, UnityEngine.GUIStyle style) (at C:/BuildAgent/work/7535de4ca26c26ac/Runtime/ExportGenerated/Editor/GUI.cs:496)
UnityEngine.GUILayout.DoTextField (System.String text, Int32 maxLength, Boolean multiline, UnityEngine.GUIStyle style, UnityEngine.GUILayoutOption[] options) (at C:/BuildAgent/work/7535de4ca26c26ac/Runtime/ExportGenerated/Editor/GUILayout.cs:96)
UnityEngine.GUILayout.TextField (System.String text, UnityEngine.GUILayoutOption[] options) (at C:/BuildAgent/work/7535de4ca26c26ac/Runtime/ExportGenerated/Editor/GUILayout.cs:57)
Menu Principal.OnGUI () (at Assets/Mis Scripts/Menu Principal.js:225)

That would mean that anytime i want to use a TextField, i can’t leave it ‘empty’, isn’t it?

I’ll leave to you the hole code of my Main Menu (some parts are in Spanish, sorry about that):

#pragma strict

private var mostrarMenuPrincipal : boolean = true;
private var mostrarOpciones : boolean = false;
private var mostrarBotonOpciones : boolean = true;
private var mostrarBotonVolverMenuPrincipal : boolean = false;
private var mostrarMenuUnJugador : boolean = false;
private var mostrarBotonCancelar : boolean = false;
private var mostrarMenuMultijugador : boolean = false;
private var mostrarMenuModo1Multijugador : boolean = false;
private var mostrarDialogoServer : boolean = false;
private var mostrarDialogoHuesped : boolean = false;

private var InputCustomIP : String;

private var toggleDificultad1 : boolean = false;
private var toggleDificultad2 : boolean = false;
private var toggleDificultad3 : boolean = false;

var supportedNetworkLevels : String[] = [ "mylevel" ];
var disconnectedLevel : String = "loader";
private var lastLevelPrefix = 0;

//private var estadoActualPantalla : boolean;

enum NetworkConnectionError
{
	TooManyConnectedPlayers,
}


function Start()
{
	mostrarMenuPrincipal = true;
	Time.timeScale = 1;
	InputCustomIP = "192.168.1.100";
}

function Awake ()
{
    // Network level loading is done in a separate channel.
    networkView.group = 1;
}

function Update()
{

}

function OnGUI () 
{	
//MENU PRINCIPAL
	if(mostrarMenuPrincipal)
	{
		// Make a background box
		GUI.Box (Rect ((Screen.width * 0.5)-75,(Screen.height * 0.5)-75,170,134), "Menu Principal");

		// Make the first button. If it is pressed, Application.Loadlevel (1) will be executed
		if (GUI.Button (Rect ((Screen.width * 0.5)-65,(Screen.height * 0.5)-50,150,23), "Un Jugador")) 
		{
			mostrarMenuPrincipal = false;
			mostrarMenuUnJugador = true;
			mostrarBotonCancelar = true;
			mostrarBotonOpciones = false;
		}
		
		if (GUI.Button (Rect ((Screen.width * 0.5)-65,(Screen.height * 0.5)-25,150,23), "MultiJugador")) 
		{
			mostrarMenuPrincipal = false;
			mostrarMenuUnJugador = false;
			mostrarBotonCancelar = true;
			mostrarBotonOpciones = false;
			mostrarMenuModo1Multijugador = true;
			mostrarBotonVolverMenuPrincipal = true;
			Application.runInBackground = true;
		}
	
		if (GUI.Button (Rect ((Screen.width * 0.5)-65,(Screen.height * 0.5)+25,150,23), "Salir")) 
		{
			Application.Quit();
		}
	}
	
//MENU PARTIDA
	if(mostrarMenuUnJugador)
	{
		//GUI.Box (Rect (50,50,(Screen.width -100),(Screen.height -150)), "Ajustes Partida");
		
		GUILayout.BeginArea(Rect ((Screen.width * 0.5)-225,(Screen.height * 0.5)-75,450,130));

			GUI.Box (Rect (0,0,450,125), "Ajustes Partida");
			
			GUILayout.BeginArea(Rect (5,20,440,200));
			
			//GUILayout.Box("Nota: Por ahora..., estos controles de dificultad son solo de relleno.");
			
			/*GUILayout.BeginHorizontal();
				GUILayout.Label("Nivel de Dificultad");
					if(GUILayout.Button("Facil"))
					{

					}
					if(GUILayout.Button("Normal"))
					{

					}
					if(GUILayout.Button("Hardcore"))
					{
						
					}
			GUILayout.EndHorizontal();*/
			
			if(GUILayout.Button("Iniciar Nueva Partida"))
			{
				Screen.showCursor = false;
				Application.LoadLevel(3);
			}
			//GUILayout.Button("Cargar partida guardada(No funciona de momento)");
			
			GUILayout.EndArea();

		GUILayout.EndArea();
		
		if(GUI.Button(Rect((Screen.width * 0.5)-75,(Screen.height * 0.5)+(Screen.height * 0.27),160,20), "Cancelar"))
		{
			mostrarMenuPrincipal = true;
			mostrarMenuUnJugador = false;
			mostrarBotonOpciones = true;
		}
	}
	
//MENU MULTIJUGADOR - PARTE 1
	if(mostrarMenuModo1Multijugador)
	{
		GUI.Box(Rect ((Screen.width * 0.5)-160,(Screen.height * 0.5)-37,150,75),"Tipo de conexión");
		
		GUILayout.BeginArea(Rect ((Screen.width * 0.5)-155,(Screen.height * 0.5)-14,140,50));
		
			GUILayout.BeginVertical();
			if(GUILayout.Button("Anfitrión"))
			{
				mostrarDialogoServer = true;
				mostrarDialogoHuesped = false;
			}
			if(GUILayout.Button("Huésped"))
			{
				mostrarDialogoHuesped = true;
				mostrarDialogoServer = false;
			}
			GUILayout.EndVertical();
		
		
		GUILayout.EndArea();
	}

//DIALOGO DEL MODO ANFITRION
	if(mostrarDialogoServer)
	{
		GUI.Box(Rect ((Screen.width * 0.5)+10,(Screen.height * 0.5)-50,180,100),"Ajustes del Server");
		
		GUILayout.BeginArea(Rect ((Screen.width * 0.5)+15,(Screen.height * 0.5)-29,170,90));
		
			GUILayout.BeginVertical();
			
				var JugadoresConectados : int = Network.connections.Length;
				var BotonIniciarServer : boolean = true;
				var BotonDetenerServer : boolean = false;
				
				/*if(BotonIniciarServer)
				{*/
				
					if(GUILayout.Button("Iniciar Server"))
					{
						ArrancarServerInterno();
						/*BotonIniciarServer = false;
						BotonDetenerServer = true;*/
					}
				/* } */
				/*if(BotonDetenerServer)
				{
					if(GUILayout.Button("Parar Server"))
					{
						Network.Disconnect(200);
						MasterServer.UnregisterHost();
						BotonIniciarServer = true;
						BotonDetenerServer = false;
						Debug.Log("SERVER CERRADO");
					}
				}*/
				
				GUILayout.Box("Jugadores conectados: " +JugadoresConectados);
			
				for (var level in supportedNetworkLevels)
				{
				
					if(GUILayout.Button("Empezar Partida"))
					{
						Screen.showCursor = false;
						//Application.LoadLevel(2);
						networkView.RPC( "LoadLevel", RPCMode.AllBuffered, level, lastLevelPrefix + 1);
					}
				}
			
			GUILayout.EndVertical();
			
		GUILayout.EndArea();
	}

	
//DIALOGO DEL MODO HUESPED
	if(mostrarDialogoHuesped)
	{
		GUI.Box(Rect ((Screen.width * 0.5)+10,(Screen.height * 0.5)-50,180,100),"Ingresa la IP del Server");
		
		GUILayout.BeginArea(Rect ((Screen.width * 0.5)+15,(Screen.height * 0.5)-29,170,90));
		
			GUILayout.BeginVertical();

					//GUILayout.Label("Ingresa la IP del Server:");
					
					GUILayout.TextField(InputCustomIP);
					
					GUILayout.Box("Jugadores conectados: " +JugadoresConectados);
					
					if(GUILayout.Button("Conectarse"))
					{
						Network.Connect(InputCustomIP,25000);
						Screen.showCursor = false;

					}

				/*if(GUILayout.Button("Unirse a la partida"))
				{
					Screen.showCursor = false;
					Application.LoadLevel(2);
				}*/
			
			GUILayout.EndVertical();
			
		GUILayout.EndArea();
	}



//OPCIONES DE JUEGO
	if(mostrarOpciones)
	{
    		//Area de fondo
			//GUI.Box (Rect (5,5,(Screen.width -10),(Screen.height -10)), "Opciones");
			GUI.Box (Rect ((Screen.width * 0.5)-280,(Screen.height * 0.5)-110,560,220), "Opciones");
			
			//AREA PRINCIPAL DE OPCIONES
			GUILayout.BeginArea(Rect ((Screen.width * 0.5)-275,(Screen.height * 0.5)-110,550,250));
			
			//Comienzo de la seccion izquierda
			GUILayout.BeginHorizontal();
			GUILayout.BeginArea(Rect (0,30,300,200));
				
				//CAMBIAR CALIDAD
				GUILayout.BeginArea(Rect (0,0,295,40));
				GUILayout.BeginHorizontal();
    			if (GUILayout.Button("-")) 
    			{
        			QualitySettings.DecreaseLevel();
    			}
    			GUILayout.Box("Nivel de Calidad: "+ (QualitySettings.names[QualitySettings.GetQualityLevel()]));
    			if (GUILayout.Button("+")) 
    			{
        			QualitySettings.IncreaseLevel();
    			}
    			GUILayout.EndHorizontal();
    			GUILayout.EndArea();

	
    		    //CAMBIAR RESOLUCION	
    			GUILayout.BeginArea(Rect (0,50,295,175));
    			GUILayout.Label("Resolución");
    		
    			GUILayout.BeginHorizontal();
    			if(GUILayout.Button("640x480"))
    			{
    				Screen.SetResolution(640,480,true);
    			}
    			if(GUILayout.Button("800x600"))
    			{
    				Screen.SetResolution(800,600,true);
    			}
    			if(GUILayout.Button("1024x768"))
    			{
    				Screen.SetResolution(1024,768,true);
    			}
    			GUILayout.EndHorizontal();
    		
    			GUILayout.BeginHorizontal();
    			if(GUILayout.Button("1280x720"))
    			{
    				Screen.SetResolution(1280,720,true);
    			}
    			if(GUILayout.Button("1400x900"))
    			{
    				Screen.SetResolution(1400,700,true);
    			}
    			if(GUILayout.Button("1600x900"))
    			{
    				Screen.SetResolution(1600,900,true);
    			}		
    			if(GUILayout.Button("1920x1080"))
    			{
    				Screen.SetResolution(1920,1080,true);
    			}
    			GUILayout.EndHorizontal();
    			GUILayout.EndArea();
    			
    			GUILayout.BeginArea(Rect (0,130,295,175));
    			GUILayout.BeginHorizontal();
    			if(GUILayout.Button("Cambiar a modo Ventana/Pantalla Completa"))
    			{
    				Screen.fullScreen = !Screen.fullScreen;
    			}
    			GUILayout.EndHorizontal();
    			GUILayout.EndArea();
    		
    			//CONTROL VOLUMEN
    			GUILayout.BeginArea(Rect (0,30,295,40));
    				GUILayout.BeginHorizontal();
    				GUILayout.Label("Nivel de Volumen");
    					GUILayout.BeginArea(Rect (110,5,180,35));
    						AudioListener.volume = GUILayout.HorizontalSlider (AudioListener.volume, 0.0, 1.0);
    					GUILayout.EndArea();
    				GUILayout.EndHorizontal();
    			GUILayout.EndArea();
    		
    		 	//ACTIVAR TORMENTA NIEVE
    			/*GUILayout.BeginArea(Rect (0,125,295,40));
					GUILayout.BeginHorizontal();
						GUILayout.Label("Tormenta de nieve densa: ");
							if (GUILayout.Button("Activar"))
							{
								NevDensa.SetActive(true);
							}
							if (GUILayout.Button("Desactivar"))
							{
								NevDensa.SetActive(false);
							}
					GUILayout.EndHorizontal();
				GUILayout.EndArea();
    			
    			//ACTIVAR COPOS DE NIEVE
    			GUILayout.BeginArea(Rect (0,150,295,40));
    				GUILayout.BeginHorizontal();
    					GUILayout.Label("Copos de Nieve: ");
    					if (GUILayout.Button("Activar"))
    					{
							CoposNieve.SetActive(true);
						}
						if (GUILayout.Button("Desactivar"))
    					{
							CoposNieve.SetActive(false);
						}
					GUILayout.EndHorizontal();
    			GUILayout.EndArea();*/
    		
    		GUILayout.EndArea();
    		GUILayout.EndHorizontal();//Fin de la seccion izquierda
					
			
			//Comienzo de la seccion derecha
			GUILayout.BeginHorizontal();
			GUILayout.BeginArea(Rect (305,50,300,200));		
				
				//MOTION BLUR
				GUILayout.BeginArea(Rect (0,0,245,25));
    				GUILayout.BeginHorizontal();
    					GUILayout.Label("Desenfoque movimiento: ");
    					if (GUILayout.Button("Act."))
    					{
							Camera.main.GetComponent(CameraMotionBlur).enabled = true;
						}
						if (GUILayout.Button("Desact."))
    					{
							Camera.main.GetComponent(CameraMotionBlur).enabled = false;
						}
    				GUILayout.EndHorizontal();
    			GUILayout.EndArea();
    				
    				
    			//ANTIALIAS
    			GUILayout.BeginArea(Rect (0,30,245,25));
    				GUILayout.BeginHorizontal();
    					GUILayout.Label("Antialias: ");
    					if (GUILayout.Button("Activar"))
    					{
							Camera.main.GetComponent(AntialiasingAsPostEffect).enabled = true;
						}
						if (GUILayout.Button("Desactivar"))
    					{
							Camera.main.GetComponent(AntialiasingAsPostEffect).enabled = false;
						}
    				GUILayout.EndHorizontal();
    			GUILayout.EndArea();
    				
    			//SSAO
    			GUILayout.BeginArea(Rect (0,60,245,25));
    				GUILayout.BeginHorizontal();
    					GUILayout.Label("SSAO: ");
    					if (GUILayout.Button("Activar"))
    					{
							Camera.main.GetComponent(SSAOEffect).enabled = true;
						}
						if (GUILayout.Button("Desactivar"))
    					{
							Camera.main.GetComponent(SSAOEffect).enabled = false;
						}
    				GUILayout.EndHorizontal();
    			GUILayout.EndArea();
    			
    			//VSync
    			GUILayout.BeginArea(Rect (0,90,245,25));
    				GUILayout.BeginHorizontal();
    					GUILayout.Label("Nivel VSync: ");
    					if (GUILayout.Button("0 (Desact.)"))
    					{
							QualitySettings.vSyncCount = 0;
						}
						if (GUILayout.Button("1"))
    					{
							QualitySettings.vSyncCount = 1;
						}
						if (GUILayout.Button("2"))
    					{
							QualitySettings.vSyncCount = 2;
						}
    				GUILayout.EndHorizontal();
    			GUILayout.EndArea();
    			
    		GUILayout.EndArea();
    		GUILayout.EndHorizontal();//Fin de la seccion derecha
    		
    		GUILayout.EndArea();
	}
		
//BOTON "Volver al Menu Principal"
	if(mostrarBotonVolverMenuPrincipal)
	{	
		if(GUI.Button(Rect((Screen.width * 0.5)-75,(Screen.height * 0.5)+(Screen.height * 0.27),160,20), "Volver al Menu Principal"))
		{
			mostrarMenuPrincipal = true;
			mostrarOpciones = false;
			mostrarBotonVolverMenuPrincipal = false;
			mostrarBotonOpciones = true;
			mostrarMenuModo1Multijugador = false;
			mostrarDialogoServer = false;
			mostrarDialogoHuesped = false;
			Application.runInBackground = false;
		}
	}
	
//BOTON "Opciones"
	if(mostrarBotonOpciones)
	{
		if(GUI.Button(Rect((Screen.width * 0.5)-65,(Screen.height * 0.5),150,23), "Opciones"))
		{
			mostrarMenuPrincipal = false;
			mostrarOpciones = true;
			mostrarBotonOpciones = false;
			mostrarBotonVolverMenuPrincipal = true;
		}
	}
}

function ArrancarServerInterno()
{
	var useNat = !Network.HavePublicAddress();
	
	Network.InitializeServer(4,25000,useNat);
	
	//MasterServer.RegisterHost("Sombras del Yeut", "Modo de Prueba", "Actualmente este es solo un test");
	
	yield WaitForSeconds(1);
}

function OnServerInitialized()
{
	Debug.Log("SERVER INICIADO");
}

/*function OnMasterServerEvent(mse:MasterServerEvent)
{
	if( mse == MasterServerEvent.RegistrationSucceeded)
	{
		Debug.Log("Server Registrado Correctamente");
	}
}

function OnConnectedToServer()
{
	
}*/

Hope it’s simple to fix, thanks in advance!

2

There is only one TextField in script (line 221). It shouldn’t be even drawn, because there is no position or scale. See TextField documentation and try to edit it.