Getting length of array based on a loop search?

I made a custom class called DialogBallon that contains a bunch of variables:

 class DialogBalloon {
     var id : int;
     var nextId = new Array();        //possible answers
     var actor : Transform;
     var listener : Transform;
     var title : String;
     var text : String;
     var waitingText : String;
     var isPlayerQuestion : boolean;        //If its a Question that the player can ask(needs to be unlocked to show)
     var isActorQuestion : boolean;        //If its a question that a Npc can ask.
     var isLastLine : boolean;              //Last line of a dialog.
     var isUnlocked : boolean;  //once unlocked the player can use it as option.
     var wasDisplayed : boolean;    //if it has already been said    
 }

and now i have several of these inside an Array:

 var allDialogs = new Array();    //Array that contains all the game dialogs
 
 //adding the dialogs
 
 allDialogs.Add(exitDialogLine);
 allDialogs.Add(politeEndLine);
 allDialogs.Add(beingIgnored);
 etc...

During my game I do a filter of the ones of a certain type to generate the buttons that allow the player to use those dialogs and it works well:

         for(var possibleQuestion : DialogBalloon in dialogManager.allDialogs){    
             if(
             possibleQuestion.isPlayerQuestion &&
             possibleQuestion.isUnlocked && 
             possibleQuestion.wasDisplayed == false
             ){        
                 var width : Vector2 = GUI.skin.GetStyle("keywords").CalcSize(GUIContent(possibleQuestion.title));
                     
                 if( GUI.Button (Rect (0, yOffset, width.x, 30), GUIContent (possibleQuestion.title))){
                 //do stuff
                 }
                 yOffset += 25;
                 totalYOffset = yOffset;
 
             }
         }

Using this for example will show 3 buttons for the 3 only questions out of around 30 that fit the if() requirements but I would also like a variable that tells me the total. If I do a dialogManager.allDialogs.Length inside the 'for' loop I always get the total and I can't figure out what I should write to get the correct results.

Any help very appreciated!

UPDATE - RESOLVED.

The proposed solution didn't quite work (it would just increase forever) but somehow I got to work by adding a second variable (possibleQuestionTotal) outside the function on the top of the script. Maybe because its a function? Would love to understand why it had to be this way.

 function QuestionsGUI(){
     var yOffset  = 0;
     var AreaWidth = 500;
     var possibleQuestionSize = 0;
     
     GUILayout.BeginArea(Rect ((Screen.width * 0.6) - (AreaWidth * 0.5),(Screen.height * 0.83), AreaWidth,500));
     GUILayout.BeginVertical();    
         for(var possibleQuestion : DialogBalloon in dialogManager.allDialogs){    
             if(
             possibleQuestion.isPlayerQuestion &&
             possibleQuestion.isUnlocked && 
             possibleQuestion.wasDisplayed == false
             ){                    
                 var width : Vector2 = GUI.skin.GetStyle("keywords").CalcSize(GUIContent(possibleQuestion.title));
                     
                 if( GUI.Button (Rect (0, yOffset, width.x, 30), GUIContent (possibleQuestion.title))){
                     dialogManager.currentDialogDisplay = possibleQuestion;
                     possibleQuestion.wasDisplayed = true;
                     showDialogLine = true;
                     showQuestions = false;
                     showAnswers = false;
                     showWaitingLine = false;
                     waitingTimer = 0.0;
                     
                     ResetSayDialogLine ();
                 }
                 yOffset += 25;
                 totalYOffset = yOffset;
                 possibleQuestionSize ++;
                 possibleQuestionTotal = possibleQuestionSize;
 
             }
         }
     GUILayout.EndVertical();
     GUILayout.EndArea();
 }