Tạo cấu trúc lưu trữ dữ liệu Từ điển nói C# Winform

Không có gì tuyệt vời hơn là luyện tập với ví dụ thực tế. Nào cùng nhau thử thách bản thân với một ứng dụng thú vị: Từ điển nói.

Code file Form1.designer.cs

namespace SpeakDictionary
{
    partial class Form1
    {
        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows Form Designer generated code

        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
            System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(Form1));
            this.panel1 = new System.Windows.Forms.Panel();
            this.panel2 = new System.Windows.Forms.Panel();
            this.txbMeaning = new System.Windows.Forms.TextBox();
            this.txbExplaination = new System.Windows.Forms.TextBox();
            this.cbWord = new System.Windows.Forms.ComboBox();
            this.btnSpeakEnglish = new System.Windows.Forms.Button();
            this.button1 = new System.Windows.Forms.Button();
            this.button2 = new System.Windows.Forms.Button();
            this.panel1.SuspendLayout();
            this.panel2.SuspendLayout();
            this.SuspendLayout();
            // 
            // panel1
            // 
            this.panel1.Controls.Add(this.btnSpeakEnglish);
            this.panel1.Controls.Add(this.cbWord);
            this.panel1.Location = new System.Drawing.Point(12, 12);
            this.panel1.Name = "panel1";
            this.panel1.Size = new System.Drawing.Size(154, 349);
            this.panel1.TabIndex = 0;
            // 
            // panel2
            // 
            this.panel2.Controls.Add(this.button2);
            this.panel2.Controls.Add(this.button1);
            this.panel2.Controls.Add(this.txbExplaination);
            this.panel2.Controls.Add(this.txbMeaning);
            this.panel2.Location = new System.Drawing.Point(172, 12);
            this.panel2.Name = "panel2";
            this.panel2.Size = new System.Drawing.Size(391, 349);
            this.panel2.TabIndex = 1;
            // 
            // txbMeaning
            // 
            this.txbMeaning.Location = new System.Drawing.Point(3, 3);
            this.txbMeaning.Name = "txbMeaning";
            this.txbMeaning.Size = new System.Drawing.Size(359, 20);
            this.txbMeaning.TabIndex = 0;
            // 
            // txbExplaination
            // 
            this.txbExplaination.Location = new System.Drawing.Point(3, 29);
            this.txbExplaination.Multiline = true;
            this.txbExplaination.Name = "txbExplaination";
            this.txbExplaination.Size = new System.Drawing.Size(359, 317);
            this.txbExplaination.TabIndex = 1;
            // 
            // cbWord
            // 
            this.cbWord.DropDownStyle = System.Windows.Forms.ComboBoxStyle.Simple;
            this.cbWord.FormattingEnabled = true;
            this.cbWord.Location = new System.Drawing.Point(0, 3);
            this.cbWord.Name = "cbWord";
            this.cbWord.Size = new System.Drawing.Size(124, 345);
            this.cbWord.TabIndex = 0;
            this.cbWord.SelectedIndexChanged += new System.EventHandler(this.cbWord_SelectedIndexChanged);
            // 
            // btnSpeakEnglish
            // 
            this.btnSpeakEnglish.BackgroundImage = global::SpeakDictionary.Properties.Resources.Kteam_vector_copy_2;
            this.btnSpeakEnglish.BackgroundImageLayout = System.Windows.Forms.ImageLayout.Stretch;
            this.btnSpeakEnglish.Location = new System.Drawing.Point(130, 3);
            this.btnSpeakEnglish.Name = "btnSpeakEnglish";
            this.btnSpeakEnglish.Size = new System.Drawing.Size(20, 23);
            this.btnSpeakEnglish.TabIndex = 1;
            this.btnSpeakEnglish.UseVisualStyleBackColor = true;
            // 
            // button1
            // 
            this.button1.BackgroundImage = global::SpeakDictionary.Properties.Resources.Kteam_vector_copy_2;
            this.button1.BackgroundImageLayout = System.Windows.Forms.ImageLayout.Stretch;
            this.button1.Location = new System.Drawing.Point(368, 3);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(20, 23);
            this.button1.TabIndex = 2;
            this.button1.UseVisualStyleBackColor = true;
            // 
            // button2
            // 
            this.button2.BackgroundImage = global::SpeakDictionary.Properties.Resources.Kteam_vector_copy_2;
            this.button2.BackgroundImageLayout = System.Windows.Forms.ImageLayout.Stretch;
            this.button2.Location = new System.Drawing.Point(368, 323);
            this.button2.Name = "button2";
            this.button2.Size = new System.Drawing.Size(20, 23);
            this.button2.TabIndex = 3;
            this.button2.UseVisualStyleBackColor = true;
            // 
            // Form1
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(575, 373);
            this.Controls.Add(this.panel2);
            this.Controls.Add(this.panel1);
            this.Icon = ((System.Drawing.Icon)(resources.GetObject("$this.Icon")));
            this.Name = "Form1";
            this.Text = "Anh - Việt | Dictionary";
            this.FormClosing += new System.Windows.Forms.FormClosingEventHandler(this.Form1_FormClosing);
            this.panel1.ResumeLayout(false);
            this.panel2.ResumeLayout(false);
            this.panel2.PerformLayout();
            this.ResumeLayout(false);

        }

        #endregion

        private System.Windows.Forms.Panel panel1;
        private System.Windows.Forms.Button btnSpeakEnglish;
        private System.Windows.Forms.ComboBox cbWord;
        private System.Windows.Forms.Panel panel2;
        private System.Windows.Forms.TextBox txbExplaination;
        private System.Windows.Forms.TextBox txbMeaning;
        private System.Windows.Forms.Button button2;
        private System.Windows.Forms.Button button1;
    }
}

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.Threading.Tasks;
using System.Windows.Forms;

namespace SpeakDictionary
{
    public partial class Form1 : Form
    {
        DictionaryManager dictionary;
        public Form1()
        {
            InitializeComponent();

            cbWord.DisplayMember = "Key";

            dictionary = new DictionaryManager();

            dictionary.LoadDataToCombobox(cbWord);
        }

        private void Form1_FormClosing(object sender, FormClosingEventArgs e)
        {
            if (MessageBox.Show("Bạn có chắc chắn muốn thoát?" , "Thông báo", MessageBoxButtons.OKCancel) != System.Windows.Forms.DialogResult.OK)
            {
                e.Cancel = true;
                return;
            }

            dictionary.Serialize();
        }

        private void cbWord_SelectedIndexChanged(object sender, EventArgs e)
        {
            ComboBox cb = sender as ComboBox;

            if (cb.DataSource == null)
                return;

            DictionaryData data = cb.SelectedItem as DictionaryData;

            txbMeaning.Text = data.Meaning;
            txbExplaination.Text = data.Explaination;
        }
    }
}

Code DictionaryData.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace SpeakDictionary
{
    public class DictionaryData
    {
        private string key;

        public string Key
        {
            get { return key; }
            set { key = value; }
        }

        private string meaning;

        public string Meaning
        {
            get { return meaning; }
            set { meaning = value; }
        }

        private string explaination;

        public string Explaination
        {
            get { return explaination; }
            set { explaination = value; }
        }
    }
}

Code DictionaryItem.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace SpeakDictionary
{
    [Serializable]
    public class DictionaryItem
    {
        private List<DictionaryData> items;

        public List<DictionaryData> Items
        {
            get { return items; }
            set { items = value; }
        }
    }
}

Code DictionaryManager.cs

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Xml.Serialization;

namespace SpeakDictionary
{
    public class DictionaryManager
    {
        #region properties
        private string filePath = "data.xml";

        private DictionaryItem items;

        public DictionaryItem Items
        {
            get { return items; }
            set { items = value; }
        }
        #endregion

        #region methods
        public DictionaryManager()
        {
            items = (DictionaryItem)DeserializeFromXML(filePath);
        }

        public void LoadDataToCombobox(ComboBox combo)
        {
            combo.DataSource = items.Items;
        }


        public void Serialize()
        {
            SerializeToXML(Items, filePath);
        }

        private void SerializeToXML(object data, string filePath)
        {
            FileStream fs = new FileStream(filePath, FileMode.OpenOrCreate, FileAccess.ReadWrite);

            XmlSerializer sr = new XmlSerializer(typeof(DictionaryItem));

            sr.Serialize(fs, data);

            fs.Close();
        }

        public object DeserializeFromXML(string filePath)
        {
            FileStream fs = new FileStream(filePath, FileMode.OpenOrCreate, FileAccess.ReadWrite);

            XmlSerializer sr = new XmlSerializer(typeof(DictionaryItem));

            object obj = sr.Deserialize(fs);

            fs.Close();

            return obj;
        }

        #endregion
    }
}

Code data.xml

<?xml version="1.0"?>
<DictionaryItem xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <Items>
    <DictionaryData>
      <Key>Hello</Key>
      <Meaning>Xin chào</Meaning>
      <Explaination>Từ mang ý nghĩa chào hỏi. Có thể dùng mỗi khi gặp một ai đó.</Explaination>
    </DictionaryData>
    <DictionaryData>
      <Key>Good bye</Key>
      <Meaning>Chào tạm biệt</Meaning>
      <Explaination>Từ mang ý nghĩa chào tạm biệt. Có thể dùng mỗi khi tạm biệt một ai đó.</Explaination>
    </DictionaryData>
    <DictionaryData>
      <Key>How Kteam</Key>
      <Meaning>How Kteam</Meaning>
      <Explaination>Một dự án chia sẽ kiến thức miễn phí</Explaination>
    </DictionaryData>
    <DictionaryData>
      <Key>Kter</Key>
      <Meaning>Thành viên của Kteam</Meaning>
      <Explaination>Bất cứ ai mong muốn chia sẽ kiến thức miễn phí. Đều là Kter.</Explaination>
    </DictionaryData>
    <DictionaryData>
      <Key>HowKteam.com</Key>
      <Meaning>Website HowKteam.com</Meaning>
      <Explaination>Một website giáo dục, chia sẽ kiến thức hoàn toàn miễn phí. Xúc tích, dễ hiểu.</Explaination>
    </DictionaryData>
  </Items>
</DictionaryItem>

File ứng dụng demo

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Đừng quên: “Luyện tập – Thử thách – Không ngại khó”

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Thảo luận

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