Refactor & fix

Controls/LoginForm.Designer.cs

@@ -68,7 +68,7 @@ namespace Mango.Controls
             this.label2.Name = "label2";
             this.label2.Size = new System.Drawing.Size(100, 23);
             this.label2.TabIndex = 3;
-            this.label2.Text = "Email";
+            this.label2.Text = "Login";
             // 
             // label3
             // 

Controls/LoginForm.cs

@@ -10,12 +10,12 @@ namespace Mango.Controls
             InitializeComponent();
         }
         
-        public String Mail => txtMail.Text;
+        public String Mail => txtMail.Text + "@etu.unistra.fr";
         public String Password => txtMdp.Text;
 
         private void btnLogin_Click(object sender, EventArgs e)
         {
-            Close();
+            DialogResult = DialogResult.OK;
         }
     }
 }
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Controls/Menu/MenuNouvelleEvent.cs

@@ -77,7 +77,6 @@ namespace Mango.Controls.Menu
                 {
                     _connection.CreateCommand("COMMIT TRANSACTION").ExecuteNonQuery();
                     _connection.FetchOffline();
-                    MailManager.SetCredentials();
                     foreach (DataRowView item in clbInvites.CheckedItems)
                     {
                         MailManager.SendMail((string)item["adresseMail"], "Mango: Rejoingez l'évenement " + txtIntitule.Text);

MailManager.cs

@@ -16,8 +16,21 @@ namespace Mango
         
         public static void SendMail(string address, string obj)
         {
+            if ((mail == null || password == null) && !SetCredentials()) return;
+
             string message = "Bonjour, \n\t Vous avez été invités à rejoindre un évenement Mango afin de participer à la bonne répartition des dépenses dans vos prochains voyages !\n\n\nL'équipe Mango";
-            MailMessage msg = new MailMessage(mail, address, obj, message);
+            MailMessage msg;
+            
+            try
+            {
+                msg = new MailMessage(mail, address, obj, message);
+            }
+            catch (Exception)
+            {
+                MessageBox.Show("Email " + address + " invalide");
+                return;
+            }
+
             SmtpClient client = new SmtpClient();
             client.Port = 587;
             client.Host = "partage.unistra.fr";
@@ -38,13 +51,14 @@ namespace Mango
             }
         }
 
-        public static void SetCredentials()
+        public static bool SetCredentials()
         {
             LoginForm login = new LoginForm();
-            login.ShowDialog();
+            if(login.ShowDialog() != DialogResult.OK) return false;
 
             mail = login.Mail;
             password = login.Password;
+            return true;
         }
     }
 }
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