首先贴出 Rocky 博客上的自适应代码：
AutoSizeFormClass.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace WinAuto
{
public class AutoSizeFormClass
{
//(1).声明结构,只记录窗体和其控件的初始位置和大小。
public struct controlRect
{
public int Left;
public int Top;
public int Width;
public int Height;
}
//(2).声明 1个对象
//注意这里不能使用控件列表记录 List nCtrl;，因为控件的关联性，记录的始终是当前的大小。
// public List oldCtrl= new List();//这里将西文的大于小于号都过滤掉了，只能改为中文的，使用中要改回西文
public List<controlRect> oldCtrl = new List<controlRect>();
int ctrlNo = 0;//1;第0个为窗体本身,窗体内的控件,从序号1开始
//(3). 创建两个函数
//(3.1)记录窗体和其控件的初始位置和大小,
public void controllInitializeSize(Control mForm)
{
controlRect cR;
cR.Left = mForm.Left; cR.Top = mForm.Top; cR.Width = mForm.Width; cR.Height = mForm.Height;
oldCtrl.Add(cR);//第一个为"窗体本身",只加入一次即可
AddControl(mForm);//窗体内其余控件还可能嵌套控件(比如panel),要单独抽出,因为要递归调用
//this.WindowState = (System.Windows.Forms.FormWindowState)(2);//记录完控件的初始位置和大小后，再最大化
//0 - Normalize , 1 - Minimize,2- Maximize
controlAutoSize(mForm);
}
private void AddControl(Control ctl)
{
foreach (Control c in ctl.Controls)
{
controlRect objCtrl;
objCtrl.Left = c.Left; objCtrl.Top = c.Top; objCtrl.Width = c.Width; objCtrl.Height = c.Height;
oldCtrl.Add(objCtrl);
//**放在这里，是先记录控件本身，后记录控件的子控件
if (c.Controls.Count > 0)
AddControl(c);//窗体内其余控件还可能嵌套控件(比如panel),要单独抽出,因为要递归调用
}
}
//(3.2)控件自适应大小,
public void controlAutoSize(Control mForm)
{
if (ctrlNo == 0)
{ //*如果在窗体的Form1_Load中，记录控件原始的大小和位置，正常没有问题，但要加入皮肤就会出现问题，因为有些控件如dataGridView的的子控件还没有完成，个数少
//*要在窗体的Form1_SizeChanged中，第一次改变大小时，记录控件原始的大小和位置,这里所有控件的子控件都已经形成
controlRect cR;
// cR.Left = mForm.Left; cR.Top = mForm.Top; cR.Width = mForm.Width; cR.Height = mForm.Height;
cR.Left = 0; cR.Top = 0; cR.Width = mForm.PreferredSize.Width; cR.Height = mForm.PreferredSize.Height;
oldCtrl.Add(cR);//第一个为"窗体本身",只加入一次即可
AddControl(mForm);//窗体内其余控件可能嵌套其它控件(比如panel),故单独抽出以便递归调用
}
float wScale = (float)mForm.Width / (float)oldCtrl[0].Width;//新旧窗体之间的比例，与最早的旧窗体
float hScale = (float)mForm.Height / (float)oldCtrl[0].Height;//.Height;
ctrlNo = 1;//进入=1，第0个为窗体本身,窗体内的控件,从序号1开始
AutoScaleControl(mForm, wScale, hScale);//窗体内其余控件还可能嵌套控件(比如panel),要单独抽出,因为要递归调用
}
private void AutoScaleControl(Control ctl, float wScale, float hScale)
{
int ctrLeft0, ctrTop0, ctrWidth0, ctrHeight0;
//int ctrlNo = 1;//第1个是窗体自身的 Left,Top,Width,Height，所以窗体控件从ctrlNo=1开始
foreach (Control c in ctl.Controls)
{ //**放在这里，是先缩放控件的子控件，后缩放控件本身
//if (c.Controls.Count > 0)
// AutoScaleControl(c, wScale, hScale);//窗体内其余控件还可能嵌套控件(比如panel),要单独抽出,因为要递归调用
ctrLeft0 = oldCtrl[ctrlNo].Left;
ctrTop0 = oldCtrl[ctrlNo].Top;
ctrWidth0 = oldCtrl[ctrlNo].Width;
ctrHeight0 = oldCtrl[ctrlNo].Height;
//c.Left = (int)((ctrLeft0 - wLeft0) * wScale) + wLeft1;//新旧控件之间的线性比例
//c.Top = (int)((ctrTop0 - wTop0) * h) + wTop1;
c.Left = (int)((ctrLeft0) * wScale);//新旧控件之间的线性比例。控件位置只相对于窗体，所以不能加 + wLeft1
c.Top = (int)((ctrTop0) * hScale);//
c.Width = (int)(ctrWidth0 * wScale);//只与最初的大小相关，所以不能与现在的宽度相乘 (int)(c.Width * w);
c.Height = (int)(ctrHeight0 * hScale);//
ctrlNo++;//累加序号
//**放在这里，是先缩放控件本身，后缩放控件的子控件
if (c.Controls.Count > 0)
AutoScaleControl(c, wScale, hScale);//窗体内其余控件还可能嵌套控件(比如panel),要单独抽出,因为要递归调用
if (ctl is DataGridView)
{
DataGridView dgv = ctl as DataGridView;
Cursor.Current = Cursors.WaitCursor;
int widths = 0;
for (int i = 0; i < dgv.Columns.Count; i++)
{
dgv.AutoResizeColumn(i, DataGridViewAutoSizeColumnMode.AllCells); // 自动调整列宽
widths += dgv.Columns[i].Width; // 计算调整列后单元列的宽度和
}
if (widths >= ctl.Size.Width) // 如果调整列的宽度大于设定列宽
dgv.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.DisplayedCells; // 调整列的模式 自动
else
dgv.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill; // 如果小于 则填充
Cursor.Current = Cursors.Default;
}
}
}
}
}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 WinAuto
{
public partial class Form1 : Form
{
//自动计算控件大小
public AutoSizeFormClass asc = new AutoSizeFormClass();
public List<User> lu = new List<User>();
public User a = new User() { Name = "Vampire", Age = 1000, Sex = "M", Tel = "177478657376" };
int change = 5;
public Form1()
{
InitializeComponent();
//asc.controllInitializeSize(this);
}
private void Form1_Load(object sender, EventArgs e)
{
lu = new List<User>();
for (int i = 0; i < 10; i++)
{
lu.Add(a);
}
dataGridView1.DataSource = lu;
//this.MaximumSize = new Size(600, 500); //限制窗体的最大宽度为600，最大高度为500
//this.MinimumSize = new Size(500, 400); //限制窗体的最小宽度为370，最小高度为240
//dataGridView1_mycolor(sender, e);
//tabControl1.SelectedIndex = 1;
//tabControl1.SelectedIndex = 0;
asc.controllInitializeSize(this);
//asc.controlAutoSize(this);
}
private void Form1_SizeChanged(object sender, EventArgs e)
{
asc.controlAutoSize(this);
}
private void button1_Click(object sender, EventArgs e)
{
lu = new List<User>();
for (int i = 0; i < change*10; i++)
{
lu.Add(a);
}
change++;
dataGridView1.DataSource = lu;
//Form1_SizeChanged(sender, e);
}
private void dataGridView1_RowPostPaint(object sender, DataGridViewRowPostPaintEventArgs e)
{
//自动编号，与数据无关
Rectangle rectangle = new Rectangle(e.RowBounds.Location.X, e.RowBounds.Location.Y, dataGridView1.RowHeadersWidth - 4, e.RowBounds.Height);
TextRenderer.DrawText(e.Graphics, (e.RowIndex + 1).ToString(), dataGridView1.RowHeadersDefaultCellStyle.Font, rectangle, dataGridView1.RowHeadersDefaultCellStyle.ForeColor, TextFormatFlags.VerticalCenter | TextFormatFlags.Right);
}
private void dataGridView1_mycolor(object sender, EventArgs e)
{
if (this.dataGridView1.Rows.Count != 0)
{
for (int i = 0; i < dataGridView1.RowCount; i += 2)
{
this.dataGridView1.Rows[i].DefaultCellStyle.BackColor = System.Drawing.Color.GreenYellow;
}
}
}
private void dataGridView1_DataSourceChanged(object sender, EventArgs e)
{
if (this.dataGridView1.Rows.Count != 0)
{
for (int i = 0; i < dataGridView1.RowCount; i += 2)
{
this.dataGridView1.Rows[i].DefaultCellStyle.BackColor = System.Drawing.Color.GreenYellow;
}
}
}
//定义最小界面尺寸，防止按钮被挤掉
private void Form1_ResizeEnd(object sender, EventArgs e)
{
//if (this.Width <= 500)
//{
// this.Width = 500;
//}
//if (this.Height <= 350)
//{
// this.Height = 350;
//}
}
private void tabControl1_TabIndexChanged(object sender, EventArgs e)
{
asc.controlAutoSize(this);
}
private void Form1_Shown(object sender, EventArgs e)
{
//asc.controllInitializeSize(this);
}
private void tabControl1_SelectedIndexChanged(object sender, EventArgs e)
{
asc.controlAutoSize(this);
}
}
}Form1.Designer.cs
namespace WinAuto
{
partial class Form1
{
/// <summary>
/// 必需的设计器变量。
/// </summary>
private System.ComponentModel.IContainer components = null;
/// <summary>
/// 清理所有正在使用的资源。
/// </summary>
/// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}
#region Windows 窗体设计器生成的代码
/// <summary>
/// 设计器支持所需的方法 - 不要
/// 使用代码编辑器修改此方法的内容。
/// </summary>
private void InitializeComponent()
{
this.components = new System.ComponentModel.Container();
this.dataGridView1 = new System.Windows.Forms.DataGridView();
this.button1 = new System.Windows.Forms.Button();
this.statusStrip1 = new System.Windows.Forms.StatusStrip();
this.toolStripStatusLabel1 = new System.Windows.Forms.ToolStripStatusLabel();
this.tabControl1 = new System.Windows.Forms.TabControl();
this.tabPage1 = new System.Windows.Forms.TabPage();
this.tabPage2 = new System.Windows.Forms.TabPage();
this.dataGridView2 = new System.Windows.Forms.DataGridView();
this.nameDataGridViewTextBoxColumn = new System.Windows.Forms.DataGridViewTextBoxColumn();
this.ageDataGridViewTextBoxColumn = new System.Windows.Forms.DataGridViewTextBoxColumn();
this.telDataGridViewTextBoxColumn = new System.Windows.Forms.DataGridViewTextBoxColumn();
this.sexDataGridViewTextBoxColumn = new System.Windows.Forms.DataGridViewTextBoxColumn();
this.userBindingSource = new System.Windows.Forms.BindingSource(this.components);
this.dataGridViewTextBoxColumn1 = new System.Windows.Forms.DataGridViewTextBoxColumn();
this.dataGridViewTextBoxColumn2 = new System.Windows.Forms.DataGridViewTextBoxColumn();
this.dataGridViewTextBoxColumn3 = new System.Windows.Forms.DataGridViewTextBoxColumn();
this.dataGridViewTextBoxColumn4 = new System.Windows.Forms.DataGridViewTextBoxColumn();
((System.ComponentModel.ISupportInitialize)(this.dataGridView1)).BeginInit();
this.statusStrip1.SuspendLayout();
this.tabControl1.SuspendLayout();
this.tabPage1.SuspendLayout();
this.tabPage2.SuspendLayout();
((System.ComponentModel.ISupportInitialize)(this.dataGridView2)).BeginInit();
((System.ComponentModel.ISupportInitialize)(this.userBindingSource)).BeginInit();
this.SuspendLayout();
//
// dataGridView1
//
this.dataGridView1.AutoGenerateColumns = false;
this.dataGridView1.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
this.dataGridView1.Columns.AddRange(new System.Windows.Forms.DataGridViewColumn[] {
this.nameDataGridViewTextBoxColumn,
this.ageDataGridViewTextBoxColumn,
this.telDataGridViewTextBoxColumn,
this.sexDataGridViewTextBoxColumn});
this.dataGridView1.DataSource = this.userBindingSource;
this.dataGridView1.Location = new System.Drawing.Point(15, 25);
this.dataGridView1.Name = "dataGridView1";
this.dataGridView1.RowTemplate.Height = 23;
this.dataGridView1.Size = new System.Drawing.Size(616, 286);
this.dataGridView1.TabIndex = 0;
this.dataGridView1.DataSourceChanged += new System.EventHandler(this.dataGridView1_DataSourceChanged);
this.dataGridView1.RowPostPaint += new System.Windows.Forms.DataGridViewRowPostPaintEventHandler(this.dataGridView1_RowPostPaint);
//
// button1
//
this.button1.Location = new System.Drawing.Point(294, 12);
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(75, 23);
this.button1.TabIndex = 1;
this.button1.Text = "刷新";
this.button1.UseVisualStyleBackColor = true;
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// statusStrip1
//
this.statusStrip1.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
this.toolStripStatusLabel1});
this.statusStrip1.Location = new System.Drawing.Point(0, 424);
this.statusStrip1.Name = "statusStrip1";
this.statusStrip1.Size = new System.Drawing.Size(680, 22);
this.statusStrip1.TabIndex = 2;
this.statusStrip1.Text = "statusStrip1";
//
// toolStripStatusLabel1
//
this.toolStripStatusLabel1.Name = "toolStripStatusLabel1";
this.toolStripStatusLabel1.Size = new System.Drawing.Size(78, 17);
this.toolStripStatusLabel1.Text = "aaaaaaaaaa";
//
// tabControl1
//
this.tabControl1.Controls.Add(this.tabPage1);
this.tabControl1.Controls.Add(this.tabPage2);
this.tabControl1.Location = new System.Drawing.Point(12, 41);
this.tabControl1.Name = "tabControl1";
this.tabControl1.SelectedIndex = 0;
this.tabControl1.Size = new System.Drawing.Size(655, 366);
this.tabControl1.TabIndex = 3;
this.tabControl1.SelectedIndexChanged += new System.EventHandler(this.tabControl1_SelectedIndexChanged);
this.tabControl1.TabIndexChanged += new System.EventHandler(this.tabControl1_TabIndexChanged);
//
// tabPage1
//
this.tabPage1.Controls.Add(this.dataGridView1);
this.tabPage1.Location = new System.Drawing.Point(4, 22);
this.tabPage1.Name = "tabPage1";
this.tabPage1.Padding = new System.Windows.Forms.Padding(3);
this.tabPage1.Size = new System.Drawing.Size(647, 340);
this.tabPage1.TabIndex = 0;
this.tabPage1.Text = "tabPage1";
this.tabPage1.UseVisualStyleBackColor = true;
//
// tabPage2
//
this.tabPage2.Controls.Add(this.dataGridView2);
this.tabPage2.Location = new System.Drawing.Point(4, 22);
this.tabPage2.Name = "tabPage2";
this.tabPage2.Padding = new System.Windows.Forms.Padding(3);
this.tabPage2.Size = new System.Drawing.Size(647, 340);
this.tabPage2.TabIndex = 1;
this.tabPage2.Text = "tabPage2";
this.tabPage2.UseVisualStyleBackColor = true;
//
// dataGridView2
//
this.dataGridView2.AutoGenerateColumns = false;
this.dataGridView2.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
this.dataGridView2.Columns.AddRange(new System.Windows.Forms.DataGridViewColumn[] {
this.dataGridViewTextBoxColumn1,
this.dataGridViewTextBoxColumn2,
this.dataGridViewTextBoxColumn3,
this.dataGridViewTextBoxColumn4});
this.dataGridView2.DataSource = this.userBindingSource;
this.dataGridView2.Location = new System.Drawing.Point(15, 27);
this.dataGridView2.Name = "dataGridView2";
this.dataGridView2.RowTemplate.Height = 23;
this.dataGridView2.Size = new System.Drawing.Size(616, 286);
this.dataGridView2.TabIndex = 1;
//
// nameDataGridViewTextBoxColumn
//
this.nameDataGridViewTextBoxColumn.DataPropertyName = "Name";
this.nameDataGridViewTextBoxColumn.HeaderText = "姓名";
this.nameDataGridViewTextBoxColumn.Name = "nameDataGridViewTextBoxColumn";
this.nameDataGridViewTextBoxColumn.Width = 200;
//
// ageDataGridViewTextBoxColumn
//
this.ageDataGridViewTextBoxColumn.DataPropertyName = "Age";
this.ageDataGridViewTextBoxColumn.HeaderText = "年龄";
this.ageDataGridViewTextBoxColumn.Name = "ageDataGridViewTextBoxColumn";
this.ageDataGridViewTextBoxColumn.Width = 200;
//
// telDataGridViewTextBoxColumn
//
this.telDataGridViewTextBoxColumn.DataPropertyName = "Tel";
this.telDataGridViewTextBoxColumn.HeaderText = "电话";
this.telDataGridViewTextBoxColumn.Name = "telDataGridViewTextBoxColumn";
this.telDataGridViewTextBoxColumn.Width = 200;
//
// sexDataGridViewTextBoxColumn
//
this.sexDataGridViewTextBoxColumn.DataPropertyName = "Sex";
this.sexDataGridViewTextBoxColumn.HeaderText = "性别";
this.sexDataGridViewTextBoxColumn.Name = "sexDataGridViewTextBoxColumn";
this.sexDataGridViewTextBoxColumn.Width = 200;
//
// userBindingSource
//
this.userBindingSource.DataSource = typeof(WinAuto.User);
//
// dataGridViewTextBoxColumn1
//
this.dataGridViewTextBoxColumn1.DataPropertyName = "Name";
this.dataGridViewTextBoxColumn1.HeaderText = "姓名";
this.dataGridViewTextBoxColumn1.Name = "dataGridViewTextBoxColumn1";
this.dataGridViewTextBoxColumn1.Width = 200;
//
// dataGridViewTextBoxColumn2
//
this.dataGridViewTextBoxColumn2.DataPropertyName = "Age";
this.dataGridViewTextBoxColumn2.HeaderText = "年龄";
this.dataGridViewTextBoxColumn2.Name = "dataGridViewTextBoxColumn2";
this.dataGridViewTextBoxColumn2.Width = 200;
//
// dataGridViewTextBoxColumn3
//
this.dataGridViewTextBoxColumn3.DataPropertyName = "Tel";
this.dataGridViewTextBoxColumn3.HeaderText = "电话";
this.dataGridViewTextBoxColumn3.Name = "dataGridViewTextBoxColumn3";
this.dataGridViewTextBoxColumn3.Width = 200;
//
// dataGridViewTextBoxColumn4
//
this.dataGridViewTextBoxColumn4.DataPropertyName = "Sex";
this.dataGridViewTextBoxColumn4.HeaderText = "性别";
this.dataGridViewTextBoxColumn4.Name = "dataGridViewTextBoxColumn4";
this.dataGridViewTextBoxColumn4.Width = 200;
//
// Form1
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(680, 446);
this.Controls.Add(this.tabControl1);
this.Controls.Add(this.statusStrip1);
this.Controls.Add(this.button1);
this.MinimumSize = new System.Drawing.Size(500, 400);
this.Name = "Form1";
this.Text = "Form1";
this.Load += new System.EventHandler(this.Form1_Load);
this.Shown += new System.EventHandler(this.Form1_Shown);
this.ResizeEnd += new System.EventHandler(this.Form1_ResizeEnd);
this.SizeChanged += new System.EventHandler(this.Form1_SizeChanged);
((System.ComponentModel.ISupportInitialize)(this.dataGridView1)).EndInit();
this.statusStrip1.ResumeLayout(false);
this.statusStrip1.PerformLayout();
this.tabControl1.ResumeLayout(false);
this.tabPage1.ResumeLayout(false);
this.tabPage2.ResumeLayout(false);
((System.ComponentModel.ISupportInitialize)(this.dataGridView2)).EndInit();
((System.ComponentModel.ISupportInitialize)(this.userBindingSource)).EndInit();
this.ResumeLayout(false);
this.PerformLayout();
}
#endregion
private System.Windows.Forms.DataGridView dataGridView1;
private System.Windows.Forms.BindingSource userBindingSource;
private System.Windows.Forms.Button button1;
private System.Windows.Forms.DataGridViewTextBoxColumn nameDataGridViewTextBoxColumn;
private System.Windows.Forms.DataGridViewTextBoxColumn ageDataGridViewTextBoxColumn;
private System.Windows.Forms.DataGridViewTextBoxColumn telDataGridViewTextBoxColumn;
private System.Windows.Forms.DataGridViewTextBoxColumn sexDataGridViewTextBoxColumn;
private System.Windows.Forms.StatusStrip statusStrip1;
private System.Windows.Forms.ToolStripStatusLabel toolStripStatusLabel1;
private System.Windows.Forms.TabControl tabControl1;
private System.Windows.Forms.TabPage tabPage1;
private System.Windows.Forms.TabPage tabPage2;
private System.Windows.Forms.DataGridView dataGridView2;
private System.Windows.Forms.DataGridViewTextBoxColumn dataGridViewTextBoxColumn1;
private System.Windows.Forms.DataGridViewTextBoxColumn dataGridViewTextBoxColumn2;
private System.Windows.Forms.DataGridViewTextBoxColumn dataGridViewTextBoxColumn3;
private System.Windows.Forms.DataGridViewTextBoxColumn dataGridViewTextBoxColumn4;
}
}
User.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace WinAuto
{
public class User
{
string name;
public string Name
{
get { return name; }
set { name = value; }
}
int age;
public int Age
{
get { return age; }
set { age = value; }
}
string tel;
public string Tel
{
get { return tel; }
set { tel = value; }
}
string sex;
public string Sex
{
get { return sex; }
set { sex = value; }
}
}
}
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