From acc3dc5a86fa27be49f35276ccf4abd3dfcb51ff Mon Sep 17 00:00:00 2001
From: Alex Thomassen <alex@thomassen.xyz>
Date: Thu, 14 Feb 2019 12:17:14 +0100
Subject: [PATCH] [MySQLGuide] Ferdig kode brukt i guide

---
 .../DatabaseConnection.cs                     | 20 ++++++++++++++
 .../MySQLDatabaseTilkobling/Form1.Designer.cs | 27 +++++++++++++++++++
 .../MySQLDatabaseTilkobling/Form1.cs          | 14 ++++++++++
 3 files changed, 61 insertions(+)

diff --git a/MySQLDatabaseTilkobling/MySQLDatabaseTilkobling/DatabaseConnection.cs b/MySQLDatabaseTilkobling/MySQLDatabaseTilkobling/DatabaseConnection.cs
index 15639fd..d0b322e 100644
--- a/MySQLDatabaseTilkobling/MySQLDatabaseTilkobling/DatabaseConnection.cs
+++ b/MySQLDatabaseTilkobling/MySQLDatabaseTilkobling/DatabaseConnection.cs
@@ -4,6 +4,7 @@ using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 using MySql.Data.MySqlClient;
+using System.Data;
 
 namespace MySQLDatabaseTilkobling
 {
@@ -27,5 +28,24 @@ namespace MySQLDatabaseTilkobling
         {
             connectionString.Close();
         }
+
+        public DataTable GetTableValues()
+        {
+            // Lag et variabel som holder et midlertidig "DataTable"
+            var table = new DataTable();
+
+            // MySqlDataAdapter lar oss sende SQL-kode til serveren og hente ut
+            // dataen vi vil ha fra databasen.
+            // `student` er navnet på tabellen som bruker i MySQL. Dette bør oppdateres om du bruker noe annet.
+            var data = new MySqlDataAdapter($"select * from student", connectionString);
+
+            // Fyller opp det midlertidige "DataTable"-variabelet med data
+            // fra MySQL-databasen som vi akkurat hentet ut.
+            data.Fill(table);
+
+            // Returnerer dataen som en "DataTable"-verdi
+            // Dette er ment til å brukes i "DataGridView" i form'et.
+            return table;
+        }
     }
 }
diff --git a/MySQLDatabaseTilkobling/MySQLDatabaseTilkobling/Form1.Designer.cs b/MySQLDatabaseTilkobling/MySQLDatabaseTilkobling/Form1.Designer.cs
index dd377b5..5abc10b 100644
--- a/MySQLDatabaseTilkobling/MySQLDatabaseTilkobling/Form1.Designer.cs
+++ b/MySQLDatabaseTilkobling/MySQLDatabaseTilkobling/Form1.Designer.cs
@@ -28,20 +28,47 @@
         /// </summary>
         private void InitializeComponent()
         {
+            this.tableView = new System.Windows.Forms.DataGridView();
+            this.refreshButton = new System.Windows.Forms.Button();
+            ((System.ComponentModel.ISupportInitialize)(this.tableView)).BeginInit();
             this.SuspendLayout();
             // 
+            // tableView
+            // 
+            this.tableView.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            this.tableView.Location = new System.Drawing.Point(13, 13);
+            this.tableView.Name = "tableView";
+            this.tableView.Size = new System.Drawing.Size(775, 389);
+            this.tableView.TabIndex = 0;
+            // 
+            // refreshButton
+            // 
+            this.refreshButton.Location = new System.Drawing.Point(316, 408);
+            this.refreshButton.Name = "refreshButton";
+            this.refreshButton.Size = new System.Drawing.Size(137, 23);
+            this.refreshButton.TabIndex = 1;
+            this.refreshButton.Text = "Oppdater tabell";
+            this.refreshButton.UseVisualStyleBackColor = true;
+            this.refreshButton.Click += new System.EventHandler(this.refreshButton_Click);
+            // 
             // Form1
             // 
             this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
             this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
             this.ClientSize = new System.Drawing.Size(800, 450);
+            this.Controls.Add(this.refreshButton);
+            this.Controls.Add(this.tableView);
             this.Name = "Form1";
             this.Text = "MySQLDatabaseTilkobling";
+            ((System.ComponentModel.ISupportInitialize)(this.tableView)).EndInit();
             this.ResumeLayout(false);
 
         }
 
         #endregion
+
+        private System.Windows.Forms.DataGridView tableView;
+        private System.Windows.Forms.Button refreshButton;
     }
 }
 
diff --git a/MySQLDatabaseTilkobling/MySQLDatabaseTilkobling/Form1.cs b/MySQLDatabaseTilkobling/MySQLDatabaseTilkobling/Form1.cs
index a6a79d8..b16f203 100644
--- a/MySQLDatabaseTilkobling/MySQLDatabaseTilkobling/Form1.cs
+++ b/MySQLDatabaseTilkobling/MySQLDatabaseTilkobling/Form1.cs
@@ -16,5 +16,19 @@ namespace MySQLDatabaseTilkobling
         {
             InitializeComponent();
         }
+
+        private void refreshButton_Click(object sender, EventArgs e)
+        {
+            DatabaseConnection database = new DatabaseConnection();
+
+            // Åpne en tilkobling til MySQL
+            database.OpenConnection();
+
+            // Hent ut data og sett dette inn i programvindu
+            tableView.DataSource = database.GetTableValues();
+
+            // Lukk tilkoblingen til MySQL
+            database.CloseConnection();
+        }
     }
 }