Problème c#

N2A_R -  
Bonjour,
J'ai un exercice à faire. C'est une sorte de questionnaire de quatres questions à choix multiples. L'utilisateur doit entrer son choix de réponse ( a,b,c,d,e) pour chaque question. Si il entre la bonne réponse, on affiche Bravo, sinon on affiche Attention. À la fin, on calcule le nombre de bonnes réponses et on affiche un message "Le cumulatif est de 75%" si il entre 3 bonnes réponses (chaque réponse vaut 15%). Comment faire pour l'accumulatif ? Je sais pas, merci pour votre aide

3 réponses

  • Votes
  • Date
  • Date décroissante
  1.  nicelife90
    Bonjour,

    Je ne connaissais donc pas cette partie de la charte!

    Pour ce qui est du problèmes qui nous concerne :

    Je t'ai déjà donné la solution en entier et je pense que tu est en mesure de trouvé la solution à partir du code que je t'ai donné.

    Il suffit simplement de déclarer une variable à 0 et d'incrémenter cette valeur de 25 pour chaque bonne réponse pour obtenir une note sur 100.

    L'opérateur d'incrémentation en C# es le suivant +=

    Bonne chance à toi et bonne fin de journée!
    N!C£-L!F£!!!
    2. nicelife90
      Bonjour,

      Voici un exemple simple et non optimisé.
      Il est maintenant facile de faire de la recher pour trouvé comment optimisé ce code.

      Form1.cs 

      using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        private int result;

        public Form1()
        {
            InitializeComponent();
        }

        private void btnValidate_Click(object sender, EventArgs e)
        {
            result = 0;

            if (rbQ1R1.Checked == true)
            {
                result += 25;
                lblQ1.Text = "Bravo!";
                lblQ1.Visible = true;
            }
            else
            {
                lblQ1.Text = "Attention!";
                lblQ1.Visible = true;
            }

            if (rbQ2R4.Checked == true)
            {
                result += 25;
                lblQ2.Text = "Bravo!";
                lblQ2.Visible = true;
            }
            else
            {
                lblQ2.Text = "Attention!";
                lblQ2.Visible = true;
            }

            if (rbQ3R3.Checked == true)
            {
                result += 25;
                lblQ3.Text = "Bravo!";
                lblQ3.Visible = true;
            }
            else
            {
                lblQ3.Text = "Attention!";
                lblQ3.Visible = true;
            }

            if (rbQ4R2.Checked == true)
            {
                result += 25;
                lblQ4.Text = "Bravo!";
                lblQ4.Visible = true;
            }
            else
            {
                lblQ4.Text = "Attention!";
                lblQ4.Visible = true;
            }

            MessageBox.Show("Votre résultat est de " + result + "%" );

        }

        private void Form1_Load(object sender, EventArgs e)
        {
            lblQ1.Visible = false;
            lblQ2.Visible = false;
            lblQ3.Visible = false;
            lblQ4.Visible = false;
        }
    }
}


      Form1.Designer.cs 

      namespace WindowsFormsApplication1
{
    partial class Form1
    {
        /// <summary>
        /// Variable nécessaire au concepteur.
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// Nettoyage des ressources utilisées.
        /// </summary>
        /// <param name="disposing">true si les ressources managées doivent être supprimées ; sinon, false.</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Code généré par le Concepteur Windows Form

        /// <summary>
        /// Méthode requise pour la prise en charge du concepteur - ne modifiez pas
        /// le contenu de cette méthode avec l'éditeur de code.
        /// </summary>
        private void InitializeComponent()
        {
            this.groupBox1 = new System.Windows.Forms.GroupBox();
            this.groupBox2 = new System.Windows.Forms.GroupBox();
            this.groupBox3 = new System.Windows.Forms.GroupBox();
            this.groupBox4 = new System.Windows.Forms.GroupBox();
            this.rbQ1R1 = new System.Windows.Forms.RadioButton();
            this.rbQ1R2 = new System.Windows.Forms.RadioButton();
            this.rbQ1R3 = new System.Windows.Forms.RadioButton();
            this.rbQ1R4 = new System.Windows.Forms.RadioButton();
            this.rbQ2R4 = new System.Windows.Forms.RadioButton();
            this.rbQ2R3 = new System.Windows.Forms.RadioButton();
            this.rbQ2R2 = new System.Windows.Forms.RadioButton();
            this.rbQ2R1 = new System.Windows.Forms.RadioButton();
            this.rbQ3R4 = new System.Windows.Forms.RadioButton();
            this.rbQ3R3 = new System.Windows.Forms.RadioButton();
            this.rbQ3R2 = new System.Windows.Forms.RadioButton();
            this.rbQ3R1 = new System.Windows.Forms.RadioButton();
            this.rbQ4R4 = new System.Windows.Forms.RadioButton();
            this.rbQ4R3 = new System.Windows.Forms.RadioButton();
            this.rbQ4R2 = new System.Windows.Forms.RadioButton();
            this.rbQ4R1 = new System.Windows.Forms.RadioButton();
            this.lblQ1 = new System.Windows.Forms.Label();
            this.lblQ2 = new System.Windows.Forms.Label();
            this.lblQ3 = new System.Windows.Forms.Label();
            this.lblQ4 = new System.Windows.Forms.Label();
            this.btnValidate = new System.Windows.Forms.Button();
            this.groupBox1.SuspendLayout();
            this.groupBox2.SuspendLayout();
            this.groupBox3.SuspendLayout();
            this.groupBox4.SuspendLayout();
            this.SuspendLayout();
            // 
            // groupBox1
            // 
            this.groupBox1.Controls.Add(this.lblQ1);
            this.groupBox1.Controls.Add(this.rbQ1R4);
            this.groupBox1.Controls.Add(this.rbQ1R3);
            this.groupBox1.Controls.Add(this.rbQ1R2);
            this.groupBox1.Controls.Add(this.rbQ1R1);
            this.groupBox1.Location = new System.Drawing.Point(13, 12);
            this.groupBox1.Name = "groupBox1";
            this.groupBox1.Size = new System.Drawing.Size(287, 173);
            this.groupBox1.TabIndex = 0;
            this.groupBox1.TabStop = false;
            this.groupBox1.Text = "1) Quel est la plus belle ville du monde?";
            // 
            // groupBox2
            // 
            this.groupBox2.Controls.Add(this.lblQ3);
            this.groupBox2.Controls.Add(this.rbQ3R4);
            this.groupBox2.Controls.Add(this.rbQ3R3);
            this.groupBox2.Controls.Add(this.rbQ3R2);
            this.groupBox2.Controls.Add(this.rbQ3R1);
            this.groupBox2.Location = new System.Drawing.Point(13, 191);
            this.groupBox2.Name = "groupBox2";
            this.groupBox2.Size = new System.Drawing.Size(287, 173);
            this.groupBox2.TabIndex = 1;
            this.groupBox2.TabStop = false;
            this.groupBox2.Text = "3) Quelle couleur est la plus belle?";
            // 
            // groupBox3
            // 
            this.groupBox3.Controls.Add(this.lblQ2);
            this.groupBox3.Controls.Add(this.rbQ2R4);
            this.groupBox3.Controls.Add(this.rbQ2R3);
            this.groupBox3.Controls.Add(this.rbQ2R2);
            this.groupBox3.Controls.Add(this.rbQ2R1);
            this.groupBox3.Location = new System.Drawing.Point(306, 12);
            this.groupBox3.Name = "groupBox3";
            this.groupBox3.Size = new System.Drawing.Size(287, 173);
            this.groupBox3.TabIndex = 1;
            this.groupBox3.TabStop = false;
            this.groupBox3.Text = "2) Qui est le meilleur programmeur?";
            // 
            // groupBox4
            // 
            this.groupBox4.Controls.Add(this.lblQ4);
            this.groupBox4.Controls.Add(this.rbQ4R4);
            this.groupBox4.Controls.Add(this.rbQ4R3);
            this.groupBox4.Controls.Add(this.rbQ4R2);
            this.groupBox4.Controls.Add(this.rbQ4R1);
            this.groupBox4.Location = new System.Drawing.Point(306, 191);
            this.groupBox4.Name = "groupBox4";
            this.groupBox4.Size = new System.Drawing.Size(287, 173);
            this.groupBox4.TabIndex = 1;
            this.groupBox4.TabStop = false;
            this.groupBox4.Text = "4) Quel est le meilleur forum d\'aide?";
            // 
            // rbQ1R1
            // 
            this.rbQ1R1.AutoSize = true;
            this.rbQ1R1.Location = new System.Drawing.Point(29, 43);
            this.rbQ1R1.Name = "rbQ1R1";
            this.rbQ1R1.Size = new System.Drawing.Size(76, 17);
            this.rbQ1R1.TabIndex = 0;
            this.rbQ1R1.TabStop = true;
            this.rbQ1R1.Text = "Montréal";
            this.rbQ1R1.UseVisualStyleBackColor = true;
            // 
            // rbQ1R2
            // 
            this.rbQ1R2.AutoSize = true;
            this.rbQ1R2.Location = new System.Drawing.Point(29, 66);
            this.rbQ1R2.Name = "rbQ1R2";
            this.rbQ1R2.Size = new System.Drawing.Size(77, 17);
            this.rbQ1R2.TabIndex = 1;
            this.rbQ1R2.TabStop = true;
            this.rbQ1R2.Text = "New York";
            this.rbQ1R2.UseVisualStyleBackColor = true;
            // 
            // rbQ1R3
            // 
            this.rbQ1R3.AutoSize = true;
            this.rbQ1R3.Location = new System.Drawing.Point(29, 89);
            this.rbQ1R3.Name = "rbQ1R3";
            this.rbQ1R3.Size = new System.Drawing.Size(53, 17);
            this.rbQ1R3.TabIndex = 2;
            this.rbQ1R3.TabStop = true;
            this.rbQ1R3.Text = "Paris";
            this.rbQ1R3.UseVisualStyleBackColor = true;
            // 
            // rbQ1R4
            // 
            this.rbQ1R4.AutoSize = true;
            this.rbQ1R4.Location = new System.Drawing.Point(29, 112);
            this.rbQ1R4.Name = "rbQ1R4";
            this.rbQ1R4.Size = new System.Drawing.Size(64, 17);
            this.rbQ1R4.TabIndex = 3;
            this.rbQ1R4.TabStop = true;
            this.rbQ1R4.Text = "Londre";
            this.rbQ1R4.UseVisualStyleBackColor = true;
            // 
            // rbQ2R4
            // 
            this.rbQ2R4.AutoSize = true;
            this.rbQ2R4.Location = new System.Drawing.Point(30, 112);
            this.rbQ2R4.Name = "rbQ2R4";
            this.rbQ2R4.Size = new System.Drawing.Size(57, 17);
            this.rbQ2R4.TabIndex = 7;
            this.rbQ2R4.TabStop = true;
            this.rbQ2R4.Text = "Jesus";
            this.rbQ2R4.UseVisualStyleBackColor = true;
            // 
            // rbQ2R3
            // 
            this.rbQ2R3.AutoSize = true;
            this.rbQ2R3.Location = new System.Drawing.Point(30, 89);
            this.rbQ2R3.Name = "rbQ2R3";
            this.rbQ2R3.Size = new System.Drawing.Size(65, 17);
            this.rbQ2R3.TabIndex = 6;
            this.rbQ2R3.TabStop = true;
            this.rbQ2R3.Text = "Jaques";
            this.rbQ2R3.UseVisualStyleBackColor = true;
            // 
            // rbQ2R2
            // 
            this.rbQ2R2.AutoSize = true;
            this.rbQ2R2.Location = new System.Drawing.Point(30, 66);
            this.rbQ2R2.Name = "rbQ2R2";
            this.rbQ2R2.Size = new System.Drawing.Size(52, 17);
            this.rbQ2R2.TabIndex = 5;
            this.rbQ2R2.TabStop = true;
            this.rbQ2R2.Text = "Jean";
            this.rbQ2R2.UseVisualStyleBackColor = true;
            // 
            // rbQ2R1
            // 
            this.rbQ2R1.AutoSize = true;
            this.rbQ2R1.Location = new System.Drawing.Point(30, 43);
            this.rbQ2R1.Name = "rbQ2R1";
            this.rbQ2R1.Size = new System.Drawing.Size(59, 17);
            this.rbQ2R1.TabIndex = 4;
            this.rbQ2R1.TabStop = true;
            this.rbQ2R1.Text = "Pierre";
            this.rbQ2R1.UseVisualStyleBackColor = true;
            // 
            // rbQ3R4
            // 
            this.rbQ3R4.AutoSize = true;
            this.rbQ3R4.Location = new System.Drawing.Point(29, 112);
            this.rbQ3R4.Name = "rbQ3R4";
            this.rbQ3R4.Size = new System.Drawing.Size(47, 17);
            this.rbQ3R4.TabIndex = 7;
            this.rbQ3R4.TabStop = true;
            this.rbQ3R4.Text = "Noir";
            this.rbQ3R4.UseVisualStyleBackColor = true;
            // 
            // rbQ3R3
            // 
            this.rbQ3R3.AutoSize = true;
            this.rbQ3R3.Location = new System.Drawing.Point(29, 89);
            this.rbQ3R3.Name = "rbQ3R3";
            this.rbQ3R3.Size = new System.Drawing.Size(61, 17);
            this.rbQ3R3.TabIndex = 6;
            this.rbQ3R3.TabStop = true;
            this.rbQ3R3.Text = "Rouge";
            this.rbQ3R3.UseVisualStyleBackColor = true;
            // 
            // rbQ3R2
            // 
            this.rbQ3R2.AutoSize = true;
            this.rbQ3R2.Location = new System.Drawing.Point(29, 66);
            this.rbQ3R2.Name = "rbQ3R2";
            this.rbQ3R2.Size = new System.Drawing.Size(55, 17);
            this.rbQ3R2.TabIndex = 5;
            this.rbQ3R2.TabStop = true;
            this.rbQ3R2.Text = "Blanc";
            this.rbQ3R2.UseVisualStyleBackColor = true;
            // 
            // rbQ3R1
            // 
            this.rbQ3R1.AutoSize = true;
            this.rbQ3R1.Location = new System.Drawing.Point(29, 43);
            this.rbQ3R1.Name = "rbQ3R1";
            this.rbQ3R1.Size = new System.Drawing.Size(49, 17);
            this.rbQ3R1.TabIndex = 4;
            this.rbQ3R1.TabStop = true;
            this.rbQ3R1.Text = "Bleu";
            this.rbQ3R1.UseVisualStyleBackColor = true;
            // 
            // rbQ4R4
            // 
            this.rbQ4R4.AutoSize = true;
            this.rbQ4R4.Location = new System.Drawing.Point(30, 112);
            this.rbQ4R4.Name = "rbQ4R4";
            this.rbQ4R4.Size = new System.Drawing.Size(64, 17);
            this.rbQ4R4.TabIndex = 7;
            this.rbQ4R4.TabStop = true;
            this.rbQ4R4.Text = "Google";
            this.rbQ4R4.UseVisualStyleBackColor = true;
            // 
            // rbQ4R3
            // 
            this.rbQ4R3.AutoSize = true;
            this.rbQ4R3.Location = new System.Drawing.Point(30, 89);
            this.rbQ4R3.Name = "rbQ4R3";
            this.rbQ4R3.Size = new System.Drawing.Size(79, 17);
            this.rbQ4R3.TabIndex = 6;
            this.rbQ4R3.TabStop = true;
            this.rbQ4R3.Text = "Facebook";
            this.rbQ4R3.UseVisualStyleBackColor = true;
            // 
            // rbQ4R2
            // 
            this.rbQ4R2.AutoSize = true;
            this.rbQ4R2.Location = new System.Drawing.Point(30, 66);
            this.rbQ4R2.Name = "rbQ4R2";
            this.rbQ4R2.Size = new System.Drawing.Size(49, 17);
            this.rbQ4R2.TabIndex = 5;
            this.rbQ4R2.TabStop = true;
            this.rbQ4R2.Text = "CCM";
            this.rbQ4R2.UseVisualStyleBackColor = true;
            // 
            // rbQ4R1
            // 
            this.rbQ4R1.AutoSize = true;
            this.rbQ4R1.Location = new System.Drawing.Point(30, 43);
            this.rbQ4R1.Name = "rbQ4R1";
            this.rbQ4R1.Size = new System.Drawing.Size(57, 17);
            this.rbQ4R1.TabIndex = 4;
            this.rbQ4R1.TabStop = true;
            this.rbQ4R1.Text = "Stack";
            this.rbQ4R1.UseVisualStyleBackColor = true;
            // 
            // lblQ1
            // 
            this.lblQ1.AutoSize = true;
            this.lblQ1.Location = new System.Drawing.Point(26, 141);
            this.lblQ1.Name = "lblQ1";
            this.lblQ1.Size = new System.Drawing.Size(45, 13);
            this.lblQ1.TabIndex = 4;
            this.lblQ1.Text = "{msg}";
            // 
            // lblQ2
            // 
            this.lblQ2.AutoSize = true;
            this.lblQ2.Location = new System.Drawing.Point(27, 141);
            this.lblQ2.Name = "lblQ2";
            this.lblQ2.Size = new System.Drawing.Size(45, 13);
            this.lblQ2.TabIndex = 8;
            this.lblQ2.Text = "{msg}";
            // 
            // lblQ3
            // 
            this.lblQ3.AutoSize = true;
            this.lblQ3.Location = new System.Drawing.Point(26, 144);
            this.lblQ3.Name = "lblQ3";
            this.lblQ3.Size = new System.Drawing.Size(45, 13);
            this.lblQ3.TabIndex = 8;
            this.lblQ3.Text = "{msg}";
            // 
            // lblQ4
            // 
            this.lblQ4.AutoSize = true;
            this.lblQ4.Location = new System.Drawing.Point(27, 144);
            this.lblQ4.Name = "lblQ4";
            this.lblQ4.Size = new System.Drawing.Size(45, 13);
            this.lblQ4.TabIndex = 9;
            this.lblQ4.Text = "{msg}";
            // 
            // btnValidate
            // 
            this.btnValidate.Location = new System.Drawing.Point(13, 370);
            this.btnValidate.Name = "btnValidate";
            this.btnValidate.Size = new System.Drawing.Size(579, 38);
            this.btnValidate.TabIndex = 2;
            this.btnValidate.Text = "Valider";
            this.btnValidate.UseVisualStyleBackColor = true;
            this.btnValidate.Click += new System.EventHandler(this.btnValidate_Click);
            // 
            // Form1
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(7F, 13F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(604, 420);
            this.Controls.Add(this.btnValidate);
            this.Controls.Add(this.groupBox4);
            this.Controls.Add(this.groupBox3);
            this.Controls.Add(this.groupBox2);
            this.Controls.Add(this.groupBox1);
            this.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
            this.Name = "Form1";
            this.Text = "Form1";
            this.Load += new System.EventHandler(this.Form1_Load);
            this.groupBox1.ResumeLayout(false);
            this.groupBox1.PerformLayout();
            this.groupBox2.ResumeLayout(false);
            this.groupBox2.PerformLayout();
            this.groupBox3.ResumeLayout(false);
            this.groupBox3.PerformLayout();
            this.groupBox4.ResumeLayout(false);
            this.groupBox4.PerformLayout();
            this.ResumeLayout(false);

        }

        #endregion

        private System.Windows.Forms.GroupBox groupBox1;
        private System.Windows.Forms.GroupBox groupBox2;
        private System.Windows.Forms.GroupBox groupBox3;
        private System.Windows.Forms.GroupBox groupBox4;
        private System.Windows.Forms.Label lblQ1;
        private System.Windows.Forms.RadioButton rbQ1R4;
        private System.Windows.Forms.RadioButton rbQ1R3;
        private System.Windows.Forms.RadioButton rbQ1R2;
        private System.Windows.Forms.RadioButton rbQ1R1;
        private System.Windows.Forms.Label lblQ3;
        private System.Windows.Forms.RadioButton rbQ3R4;
        private System.Windows.Forms.RadioButton rbQ3R3;
        private System.Windows.Forms.RadioButton rbQ3R2;
        private System.Windows.Forms.RadioButton rbQ3R1;
        private System.Windows.Forms.Label lblQ2;
        private System.Windows.Forms.RadioButton rbQ2R4;
        private System.Windows.Forms.RadioButton rbQ2R3;
        private System.Windows.Forms.RadioButton rbQ2R2;
        private System.Windows.Forms.RadioButton rbQ2R1;
        private System.Windows.Forms.Label lblQ4;
        private System.Windows.Forms.RadioButton rbQ4R4;
        private System.Windows.Forms.RadioButton rbQ4R3;
        private System.Windows.Forms.RadioButton rbQ4R2;
        private System.Windows.Forms.RadioButton rbQ4R1;
        private System.Windows.Forms.Button btnValidate;
    }
}


      1. N2A_R Auteur
        Je vous ai envoyé un message privé pour m'aider, pourriez-vous répondre svp ? Merci