删除Windows窗体中的标题栏

如何删除“窗口窗体”顶部的蓝色边框？（我不知道确切的名字。）

您可以FormBorderStyle在设计器或代码中将Property设置为none：

this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;

如果Blue Border thats on top of the Window Form您是说titlebar，请将FormsControlBox属性设置为false，将Text属性设置为空字符串（“”）。

这是一个片段：

this.ControlBox = false;
this.Text = String.Empty;

还要将此代码添加到表单中，以使其仍可拖动。

只需将其添加到构造函数之前即可（调用InitializeComponent（）的方法

private const int WM_NCHITTEST = 0x84;
private const int HTCLIENT = 0x1;
private const int HTCAPTION = 0x2;

///
/// Handling the window messages
///
protected override void WndProc(ref Message message)
{
    base.WndProc(ref message);

    if (message.Msg == WM_NCHITTEST && (int)message.Result == HTCLIENT)
        message.Result = (IntPtr)HTCAPTION;
}

该代码来自：https : //jachman.wordpress.com/2006/06/08/enhanced-drag-and-move-winforms-without-having-a-titlebar/

现在要摆脱标题栏，但仍然有边框，请结合其他响应中的代码：

this.ControlBox = false;

this.Text = String.Empty;

用这一行：

this.FormBorderStyle = FormBorderStyle.FixedSingle;

将这三行代码放入窗体的OnLoad事件中，您应该有一个不错的“浮动”窗体，该窗体可以使用细边框拖动（如果不希望使用边框，请使用FormBorderStyle.None）。

 Me.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None

设置FormsBorderStyle为的表格None。

如果这样做，则取决于您如何实现窗口的拖动和关闭功能。

我正在分享我的代码。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 BorderExp
{
public partial class Form1 : Form
{
    public Form1()
    {
        InitializeComponent();
    }

    private void Form1_Load(object sender, EventArgs e)
    {
        FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;

    }

    private void ExitClick(object sender, EventArgs e)
    {
        Application.Exit();
    }

    private void MaxClick(object sender, EventArgs e)
    {
        if (WindowState ==FormWindowState.Normal)
        {
            this.WindowState = FormWindowState.Maximized;
        }
        else
        {
            this.WindowState = FormWindowState.Normal;
        }
    }

    private void MinClick(object sender, EventArgs e)
    {
        this.WindowState = FormWindowState.Minimized;
       }
    }
    }

现在，设计师：

namespace BorderExp
 {
   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()
    {
        this.button1 = new System.Windows.Forms.Button();
        this.button2 = new System.Windows.Forms.Button();
        this.button3 = new System.Windows.Forms.Button();
        this.SuspendLayout();
        // 
        // button1
        // 
        this.button1.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right)));
        this.button1.BackColor = System.Drawing.SystemColors.ButtonFace;
        this.button1.BackgroundImage = global::BorderExp.Properties.Resources.blank_1_;
        this.button1.FlatAppearance.BorderSize = 0;
        this.button1.FlatAppearance.MouseOverBackColor = System.Drawing.Color.FromArgb(((int)(((byte)(224)))), ((int)(((byte)(224)))), ((int)(((byte)(224)))));
        this.button1.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
        this.button1.Location = new System.Drawing.Point(376, 1);
        this.button1.Name = "button1";
        this.button1.Size = new System.Drawing.Size(27, 26);
        this.button1.TabIndex = 0;
        this.button1.Text = "X";
        this.button1.UseVisualStyleBackColor = false;
        this.button1.Click += new System.EventHandler(this.ExitClick);
        // 
        // button2
        // 
        this.button2.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right)));
        this.button2.BackColor = System.Drawing.SystemColors.ButtonFace;
        this.button2.BackgroundImage = global::BorderExp.Properties.Resources.blank_1_;
        this.button2.FlatAppearance.BorderSize = 0;
        this.button2.FlatAppearance.MouseOverBackColor = System.Drawing.Color.FromArgb(((int)(((byte)(224)))), ((int)(((byte)(224)))), ((int)(((byte)(224)))));
        this.button2.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
        this.button2.Location = new System.Drawing.Point(343, 1);
        this.button2.Name = "button2";
        this.button2.Size = new System.Drawing.Size(27, 26);
        this.button2.TabIndex = 1;
        this.button2.Text = "[]";
        this.button2.UseVisualStyleBackColor = false;
        this.button2.Click += new System.EventHandler(this.MaxClick);
        // 
        // button3
        // 
        this.button3.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right)));
        this.button3.BackColor = System.Drawing.SystemColors.ButtonFace;
        this.button3.BackgroundImage = global::BorderExp.Properties.Resources.blank_1_;
        this.button3.FlatAppearance.BorderSize = 0;
        this.button3.FlatAppearance.MouseOverBackColor = System.Drawing.Color.FromArgb(((int)(((byte)(224)))), ((int)(((byte)(224)))), ((int)(((byte)(224)))));
        this.button3.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
        this.button3.Location = new System.Drawing.Point(310, 1);
        this.button3.Name = "button3";
        this.button3.Size = new System.Drawing.Size(27, 26);
        this.button3.TabIndex = 2;
        this.button3.Text = "___";
        this.button3.UseVisualStyleBackColor = false;
        this.button3.Click += new System.EventHandler(this.MinClick);
        // 
        // Form1
        // 
        this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
        this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
        this.BackgroundImage = global::BorderExp.Properties.Resources.blank_1_;
        this.ClientSize = new System.Drawing.Size(403, 320);
        this.ControlBox = false;
        this.Controls.Add(this.button3);
        this.Controls.Add(this.button2);
        this.Controls.Add(this.button1);
        this.Name = "Form1";
        this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
        this.Text = "Form1";
        this.Load += new System.EventHandler(this.Form1_Load);
        this.ResumeLayout(false);

    }

    #endregion

    private System.Windows.Forms.Button button1;
    private System.Windows.Forms.Button button2;
    private System.Windows.Forms.Button button3;
    }
   }

屏幕截图： -NoBorderForm