textbox-focus-event ソースコード全文

Microsoft Visual Studio Solution File, Format Version 12.00
# Visual Studio Version 17
VisualStudioVersion = 17.10.35004.147
MinimumVisualStudioVersion = 10.0.40219.1
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TextBox_EventRegister_GotFocus_CS", "TextBox_EventRegister_GotFocus_CS\TextBox_EventRegister_GotFocus_CS.csproj", "{265002CE-F04C-460D-A5BB-BB97865D7C85}"
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namespace TextBox_EventRegister_GotFocus_CS
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            this.textBox1.Text = "�e�L�X�g";
            this.button1.Focus();

            // TextBox.GotFocus �C�x���g�̓o�^
            this.textBox1.GotFocus += TextBox1_GotFocus;
        }

        private void TextBox1_GotFocus(object? sender, EventArgs e)
        {
            var textBox = sender as TextBox;
            textBox.SelectAll();
        }
    }
}

namespace TextBox_EventRegister_GotFocus_CS
{
    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()
        {
            button1 = new Button();
            textBox1 = new TextBox();
            SuspendLayout();
            //
            // button1
            //
            button1.Location = new Point(49, 35);
            button1.Name = "button1";
            button1.Size = new Size(94, 29);
            button1.TabIndex = 0;
            button1.Text = "button1";
            button1.UseVisualStyleBackColor = true;
            //
            // textBox1
            //
            textBox1.Location = new Point(186, 36);
            textBox1.Name = "textBox1";
            textBox1.Size = new Size(224, 27);
            textBox1.TabIndex = 1;
            //
            // Form1
            //
            AutoScaleDimensions = new SizeF(8F, 20F);
            AutoScaleMode = AutoScaleMode.Font;
            ClientSize = new Size(800, 450);
            Controls.Add(textBox1);
            Controls.Add(button1);
            Name = "Form1";
            Text = "Form1";
            Load += Form1_Load;
            ResumeLayout(false);
            PerformLayout();
        }

        #endregion

        private Button button1;
        private TextBox textBox1;
    }
}

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namespace TextBox_EventRegister_GotFocus_CS
{
    internal static class Program
    {
        /// <summary>
        ///  The main entry point for the application.
        /// </summary>
        [STAThread]
        static void Main()
        {
            // To customize application configuration such as set high DPI settings or default font,
            // see https://aka.ms/applicationconfiguration.
            ApplicationConfiguration.Initialize();
            Application.Run(new Form1());
        }
    }
}

<Project Sdk="Microsoft.NET.Sdk">

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    <OutputType>WinExe</OutputType>
    <TargetFramework>net8.0-windows</TargetFramework>
    <Nullable>enable</Nullable>
    <UseWindowsForms>true</UseWindowsForms>
    <ImplicitUsings>enable</ImplicitUsings>
  </PropertyGroup>

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