winforms-sql-connection [BRIONES]

TestWins/Form1.cs

@@ -11,33 +11,83 @@ public partial class Form1 : Form
     public Form1()
     {
         InitializeComponent();
+
+
+        dataGridView1.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
+        dataGridView1.AutoGenerateColumns = true;
+        dataGridView1.MultiSelect = false;
+
         loadData();
     }
 
     private void loadData()
     {
-        dataGridView1.DataSource = controller.getAll();
+        try
+        {
+            dataGridView1.DataSource = controller.getAll();
+        }
+        catch (Exception ex)
+        {
+            MessageBox.Show("Error loading data: " + ex.Message);
+        }
     }
 
     private void btnAdd_Click(object sender, EventArgs e)
     {
+        var student = new TestWins.Model.Student
+        {
+            studentId = txtStudentId.Text,
+            Name = txtName.Text,
+            age = int.Parse(txtAge.Text),
+            course = txtCourse.Text
+        };
 
+        controller.createStudent(student);
+        loadData();
+        clearFields();
     }
 
     private void btnUpdate_Click(object sender, EventArgs e)
     {
+        var student = new TestWins.Model.Student
+        {
+            studentId = txtStudentId.Text,
+            Name = txtName.Text,
+            age = int.Parse(txtAge.Text),
+            course = txtCourse.Text
+        };
 
+        controller.update(student);
+        loadData();
+        clearFields();
     }
 
     private void btnDelete_Click(object sender, EventArgs e)
     {
-
-
-
+        controller.delete(txtStudentId.Text);
+        loadData();
+        clearFields();
     }
 
     private void dataGridView1_CellClick(object sender, EventArgs e)
     {
+        if (dataGridView1.CurrentRow != null)
+        {
+            DataGridViewRow row = dataGridView1.CurrentRow;
+            txtStudentId.Text = row.Cells[0].Value.ToString();
+            txtName.Text = row.Cells[1].Value.ToString();
+            txtAge.Text = row.Cells[2].Value.ToString();
+            txtCourse.Text = row.Cells[3].Value.ToString();
+        }
+    }
 
+    private void clearFields()
+    {
+        txtStudentId.Text = "";
+        txtName.Text = "";
+        txtAge.Text = "";
+        txtCourse.Text = "";
     }
+
 }
+

TestWins/model/ConnectionSql.cs

@@ -15,7 +15,7 @@ public MySqlConnection connectSql()
 
         _conn = new MySqlConnection(_connectionString);
 
-        Console.WriteLine(_conn == null ? "Datbase Connection Failed" : "Database connection successful");
+        Console.WriteLine(_conn == null ? "Database Connection Failed" : "Database connection successful");
 
         return _conn;
     }

TestWins/repository/StudentRepository.cs

@@ -16,7 +16,7 @@ public void create(Student student)
         using var conn = _db.connectSql(); //Connection
         conn.Open(); //Open Connection
 
-        string query = "INSERT INTO students VALUES(@name, @age, @course)";
+        string query = "INSERT INTO (name, age, course) students VALUES(@name, @age, @course)";
 
         using var cmd = new MySqlCommand(query, conn);
 
@@ -56,7 +56,7 @@ public void update(Student student)
         using var conn = _db.connectSql();
         conn.Open();
 
-        string query = "UPDATE students SET name = @name, age=@age, course=@course where studentId = @ID";
+        string query = "UPDATE students SET name = @name, age=@age, course=@course where studentId = @id";
 
         using var cmd = new MySqlCommand(query, conn);