[C#] To do List 만들기 - 1

출처 : https://www.youtube.com/watch?v=eUPKj2jqZjw

아직 Database 연동을 하지 않았다.

동영상에서는 FireBase를 사용했는데 나는 서버로 안하고 localhost의 DB와 연동하려고 한다

C#을 이용한 DB연동을 연습해 볼 수 있다

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.Threading.Tasks; using System.Windows.Forms; using Newtonsoft.Json.Linq; namespace TodoListPractice { public partial class Form1 : Form { public Form1() { InitializeComponent(); } int poss = 10; public void addItem(string Text, string Key, bool Checked) { todo_item item = new TodoListPractice.todo_item(Text,Key, Checked); panel2.Controls.Add(item); item.onChange += Item_onChange; item.onDelete += Item_onDelete; item.Top = poss; poss = (item.Top + item.Height + 10); } private void Item_onDelete(object sender, EventArgs e) { //database에서 remove } private void Item_onChange(object sender, EventArgs e) { //database에서 change //check.Checked.ToString(); } private void button1_Click(object sender, EventArgs e) { if(txt.Text.Trim().Length ==0) { MessageBox.Show("Invalid Text"); return; } addItem(txt.Text,"0", false); txt.Text = ""; //server로 데이터 전송 JObject todo = new JObject(); //json todo["checked"] = false; todo["text"] = txt.Text; } private void Form1_Load(object sender, EventArgs e) { //load data } } }

todo_item.cs

 

using System; using System.Collections.Generic; using System.ComponentModel; using System.Drawing; using System.Data; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; namespace TodoListPractice { public partial class todo_item : UserControl { public todo_item() { InitializeComponent(); } public todo_item(String Text,string Key,bool Checked) { key = Key; value = Text; InitializeComponent(); lbl.Text = Text; check.Checked = Checked; } private void check_CheckedChanged(object sender, EventArgs e) { if(check.Checked) { this.BackColor = Color.Green; lbl.Font = new Font(lbl.Font.Name, lbl.Font.SizeInPoints, FontStyle.Strikeout); } else { // this.BackColor = Color.FromArgb(red, green, blue); this.BackColor = Color.Gainsboro; lbl.Font = new Font(lbl.Font.Name, lbl.Font.SizeInPoints, FontStyle.Regular); } if (onChange != null) { onChange.Invoke(this, new EventArgs()); } } private void todo_item_Load(object sender, EventArgs e) { if (check.Checked) { lbl.Font = new Font(lbl.Font.Name, lbl.Font.SizeInPoints, FontStyle.Strikeout); } else { lbl.Font = new Font(lbl.Font.Name, lbl.Font.SizeInPoints, FontStyle.Regular); } } public event EventHandler onChange = null; public event EventHandler onDelete = null; public string key = null; public string value = null; private void delete_Click(object sender, EventArgs e) { this.BackColor = Color.Tomato; lbl.Text = "Deleted"; check.Enabled = delete.Enabled = false; if(onDelete!=null) { onDelete.Invoke(this, new EventArgs()); } } } }

결과 화면