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Efrain Mejias C
Asked: 2020-04-14 08:36:33 +0800 CST 2020-04-14 08:36:33 +0800 CST

从文本框 C# 中删除光标

  • 772

当一个文本框获得焦点时，会出现一个闪烁的条......我怎样才能让它不出现？ 在此处输入图像描述

c#

2 Answers

  1. Best Answer

    好吧，我已经用我放在评论中的代码以某种方式管理它。

    在Form实现这些控件的类中TextBox，您执行以下操作：

    1. 您using System.Runtime.InteropServices;在文件的开头执行（与您使用的文件相对应的代码文件的名称在MiForm.cs 哪里。）MiFormForm

    2. 您定义外部方法HideCaret：

      [DllImport("user32.dll")]
静态外部布尔 HideCaret(IntPtr hWnd);

    然后为每个TextBox您配置事件GotFocus如下：

    foreach (TextBox item in MiColeccionDeTextBoxes) {
    item.GotFocus += delegate { HideCaret(item.Handle); }
}

    有了这个，你就有了完成所需的东西Form，下面我留下了Form1.cs我在尝试时制作的所有代码：

    // Recuerda el using System.Runtime.InteropServices;

public partial class Form1 : Form
{
    [DllImport("user32.dll")]
    static extern bool HideCaret(IntPtr hWnd);

    public Form1()
    {
        InitializeComponent();
        TextBox[] texts = { txt1, txt2 };
        foreach (TextBox item in texts)
            item.GotFocus += delegate { HideCaret(item.Handle);  };
    }

    /// <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()
    {
        this.txt1 = new System.Windows.Forms.TextBox();
        this.txt2 = new System.Windows.Forms.TextBox();
        this.SuspendLayout();
        // 
        // txt1
        // 
        this.txt1.Location = new System.Drawing.Point(12, 48);
        this.txt1.MaxLength = 1;
        this.txt1.Name = "txt1";
        this.txt1.Size = new System.Drawing.Size(100, 20);
        this.txt1.TabIndex = 0;
        // 
        // txt2
        // 
        this.txt2.Location = new System.Drawing.Point(12, 74);
        this.txt2.MaxLength = 1;
        this.txt2.Name = "txt2";
        this.txt2.Size = new System.Drawing.Size(100, 20);
        this.txt2.TabIndex = 1;
        // 
        // Form1
        // 
        this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
        this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
        this.ClientSize = new System.Drawing.Size(284, 261);
        this.Controls.Add(this.txt2);
        this.Controls.Add(this.txt1);
        this.Name = "Form1";
        this.Text = "Test Focus";
        this.ResumeLayout(false);
        this.PerformLayout();

    }

    #endregion

    private System.Windows.Forms.TextBox txt1;
    private System.Windows.Forms.TextBox txt2;
}
    • 10

  2. 我建议您不要使用 TextBox 来表示每个正方形，您可以使用图片框并绘制数字

    如何在图片框上绘制文字？

    在 C Sharp 中绘制图形

    这样，您将拥有事件但您可以控制操作，它不会像分配.Text那样直接，但您不会在控件上有任何光标

    如果您不想使用 Paint 事件，为了使数字的分配更简单，您可以查看是否使用

    Graphics g = pictureBox1.CreateGraphics();

    或者类似的东西

    Bitmap bm = new Bitmap(pictureBox1.Width, pictureBox1.Height);

using (Graphics g = Graphics.FromImage(bm))
{
    using (SolidBrush myBrush = new SolidBrush(Color.Black))
    {
        using (Font myFont = new Font("Times New Roman", 24))
        {
            g.DrawString("aqui numero", myFont, myBrush, 10, 10);
            pictureBox1.Image = bm;
        }
    }
}

    当您想显示一个数字时，您将其绘制在图像中并将其分配给图片框，如果您需要分配背景颜色，您总是可以毫无问题地做到这一点

    • 3