Winform窗体的基本控件
一、窗体的事件
每一个窗体都有一个事件，这个窗体加载完成之后执行哪一段代码
位置：（1)右键属性→事件→load 双击进入。（2)双击窗体任意一个位置进入
public partial class Form1 : Form//构造方法
{
public Form1()
{
InitializeComponent();
}
控件在工具箱里面找，找到之后双击即可添加进来，也可以点住拖进来
每个工具，控件，窗体都有一个name，相当于id，用来标识该对象的名称，name值不允许重复
六大常用控件
1、Label -- 文本显示工具
Text：需要显示的文字——属性
Label的取值赋值：
private void Form1_Load(object sender, EventArgs e) { label1.Text = "请输入你需要购买的东西："; MessageBox.Show(label1.Text); }
2、TextBox -- 文本框
TextBox的取值赋值：
private void Form1_Load(object sender, EventArgs e) { textBox1.Text = "请输入配菜"; MessageBox.Show(textBox1.Text); }
3、radioButton -- 单选按钮
text:文字
Checked：是否选中
// // radioButton1 // this.radioButton1.AutoSize = true; this.radioButton1.BackColor = System.Drawing.Color.Transparent; this.radioButton1.Checked = true;//决定是否先选中其中一个 this.radioButton1.Font = new System.Drawing.Font("微软雅黑", 9.75F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134))); this.radioButton1.Location = new System.Drawing.Point(150, 130); this.radioButton1.Name = "radioButton1"; this.radioButton1.Size = new System.Drawing.Size(53, 23); this.radioButton1.TabIndex = 4; this.radioButton1.TabStop = true; this.radioButton1.Text = "薯条"; this.radioButton1.UseVisualStyleBackColor = false;
4 combobox--下拉列表
用于制作下拉菜单
// // comboBox1 // this.comboBox1.BackColor = System.Drawing.SystemColors.Info; //决定着默认无法输入文字，为灰色区域DropDownList this.comboBox1.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList; this.comboBox1.Font = new System.Drawing.Font("微软雅黑", 8F); this.comboBox1.FormattingEnabled = true; this.comboBox1.Items.AddRange(new object[] { "香辣鸡腿堡", "半鸡半虾堡", "BBQ手撕猪肉堡", "老北京鸡肉卷", "黑椒牛柳饭", "日式咖喱饭"}); this.comboBox1.Location = new System.Drawing.Point(150, 81); this.comboBox1.Margin = new System.Windows.Forms.Padding(4); this.comboBox1.Name = "comboBox1"; this.comboBox1.Size = new System.Drawing.Size(168, 24); this.comboBox1.TabIndex = 2;
5、checkbox -- 复选框组
Checked属性：是否选中
Tag属性：可以存储自定义数，用户自己定义
设置全选或者全都不选
private void checkBox3_CheckedChanged(object sender, EventArgs e) { foreach (Control ctr in panel2.Controls) { if (ctr is CheckBox) { CheckBox ck = ctr as CheckBox; ck.Checked = checkBox3.Checked; } } }
6、Button 按钮
name：设置按钮名
Text：设置按钮显示的文字
双击进入设置按钮的事件（默认为点击事件）
练习：肯德基订餐
namespace WindowsFormsApplication1 { 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() { System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(Form1)); this.label1 = new System.Windows.Forms.Label(); this.label2 = new System.Windows.Forms.Label(); this.comboBox1 = new System.Windows.Forms.ComboBox(); this.label3 = new System.Windows.Forms.Label(); this.radioButton1 = new System.Windows.Forms.RadioButton(); this.radioButton2 = new System.Windows.Forms.RadioButton(); this.radioButton3 = new System.Windows.Forms.RadioButton(); this.label4 = new System.Windows.Forms.Label(); this.checkBox1 = new System.Windows.Forms.CheckBox(); this.checkBox2 = new System.Windows.Forms.CheckBox(); this.checkBox3 = new System.Windows.Forms.CheckBox(); this.checkBox4 = new System.Windows.Forms.CheckBox(); this.checkBox5 = new System.Windows.Forms.CheckBox(); this.checkBox6 = new System.Windows.Forms.CheckBox(); this.label5 = new System.Windows.Forms.Label(); this.label6 = new System.Windows.Forms.Label(); this.textBox1 = new System.Windows.Forms.TextBox(); this.textBox2 = new System.Windows.Forms.TextBox(); this.button1 = new System.Windows.Forms.Button(); this.SuspendLayout(); // // label1 // this.label1.AutoSize = true; this.label1.BackColor = System.Drawing.Color.Transparent; this.label1.Font = new System.Drawing.Font("微软雅黑", 20F); this.label1.ForeColor = System.Drawing.Color.Yellow; this.label1.Location = new System.Drawing.Point(164, 9); this.label1.Margin = new System.Windows.Forms.Padding(8, 0, 8, 0); this.label1.Name = "label1"; this.label1.Size = new System.Drawing.Size(204, 35); this.label1.TabIndex = 0; this.label1.Text = "肯德基点餐系统"; this.label1.Click += new System.EventHandler(this.label1_Click); // // label2 // this.label2.AutoSize = true; this.label2.BackColor = System.Drawing.Color.Transparent; this.label2.Font = new System.Drawing.Font("微软雅黑", 10F); this.label2.ForeColor = System.Drawing.Color.White; this.label2.Location = new System.Drawing.Point(36, 81); this.label2.Margin = new System.Windows.Forms.Padding(4, 0, 4, 0); this.label2.Name = "label2"; this.label2.Size = new System.Drawing.Size(93, 20); this.label2.TabIndex = 1; this.label2.Text = "请选择主食："; this.label2.Click += new System.EventHandler(this.label2_Click); // // comboBox1 // this.comboBox1.BackColor = System.Drawing.SystemColors.Info; //决定着默认无法输入文字，为灰色区域DropDownList this.comboBox1.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList; this.comboBox1.Font = new System.Drawing.Font("微软雅黑", 8F); this.comboBox1.FormattingEnabled = true; this.comboBox1.Items.AddRange(new object[] { "香辣鸡腿堡", "半鸡半虾堡", "BBQ手撕猪肉堡", "老北京鸡肉卷", "黑椒牛柳饭", "日式咖喱饭"}); this.comboBox1.Location = new System.Drawing.Point(150, 81); this.comboBox1.Margin = new System.Windows.Forms.Padding(4); this.comboBox1.Name = "comboBox1"; this.comboBox1.Size = new System.Drawing.Size(168, 24); this.comboBox1.TabIndex = 2; // // label3 // this.label3.AutoSize = true; this.label3.BackColor = System.Drawing.Color.Transparent; this.label3.Font = new System.Drawing.Font("微软雅黑", 10F); this.label3.ForeColor = System.Drawing.Color.White; this.label3.Location = new System.Drawing.Point(36, 132); this.label3.Name = "label3"; this.label3.Size = new System.Drawing.Size(93, 20); this.label3.TabIndex = 3; this.label3.Text = "请选择配餐："; // // radioButton1 // this.radioButton1.AutoSize = true; this.radioButton1.BackColor = System.Drawing.Color.Transparent; this.radioButton1.Checked = true;//决定是否先选中其中一个 this.radioButton1.Font = new System.Drawing.Font("微软雅黑", 9.75F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134))); this.radioButton1.Location = new System.Drawing.Point(150, 130); this.radioButton1.Name = "radioButton1"; this.radioButton1.Size = new System.Drawing.Size(53, 23); this.radioButton1.TabIndex = 4; this.radioButton1.TabStop = true; this.radioButton1.Text = "薯条"; this.radioButton1.UseVisualStyleBackColor = false; // // radioButton2 // this.radioButton2.AutoSize = true; this.radioButton2.BackColor = System.Drawing.Color.Transparent; this.radioButton2.Font = new System.Drawing.Font("微软雅黑", 10F); this.radioButton2.Location = new System.Drawing.Point(237, 129); this.radioButton2.Name = "radioButton2"; this.radioButton2.Size = new System.Drawing.Size(69, 24); this.radioButton2.TabIndex = 5; this.radioButton2.Text = "玉米棒"; this.radioButton2.UseVisualStyleBackColor = false; this.radioButton2.CheckedChanged += new System.EventHandler(this.radioButton2_CheckedChanged); // // radioButton3 // this.radioButton3.AutoSize = true; this.radioButton3.BackColor = System.Drawing.Color.Transparent; this.radioButton3.Font = new System.Drawing.Font("微软雅黑", 10F); this.radioButton3.Location = new System.Drawing.Point(344, 129); this.radioButton3.Name = "radioButton3"; this.radioButton3.Size = new System.Drawing.Size(69, 24); this.radioButton3.TabIndex = 6; this.radioButton3.Text = "鸡米花"; this.radioButton3.UseVisualStyleBackColor = false; this.radioButton3.CheckedChanged += new System.EventHandler(this.radioButton3_CheckedChanged); // // label4 // this.label4.AutoSize = true; this.label4.BackColor = System.Drawing.Color.Transparent; this.label4.Font = new System.Drawing.Font("微软雅黑", 10F); this.label4.ForeColor = System.Drawing.Color.White; this.label4.Location = new System.Drawing.Point(36, 184); this.label4.Name = "label4"; this.label4.Size = new System.Drawing.Size(93, 20); this.label4.TabIndex = 7; this.label4.Text = "请选择饮品："; this.label4.Click += new System.EventHandler(this.label4_Click); // // checkBox1 // this.checkBox1.AutoSize = true; this.checkBox1.BackColor = System.Drawing.Color.Transparent; this.checkBox1.Font = new System.Drawing.Font("微软雅黑", 9.75F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134))); this.checkBox1.ForeColor = System.Drawing.Color.Black; this.checkBox1.Location = new System.Drawing.Point(149, 183); this.checkBox1.Name = "checkBox1"; this.checkBox1.Size = new System.Drawing.Size(54, 23); this.checkBox1.TabIndex = 8; this.checkBox1.Text = "奶茶"; this.checkBox1.UseVisualStyleBackColor = false; // // checkBox2 // this.checkBox2.AutoSize = true; this.checkBox2.BackColor = System.Drawing.Color.Transparent; this.checkBox2.Font = new System.Drawing.Font("微软雅黑", 10F); this.checkBox2.ForeColor = System.Drawing.Color.Black; this.checkBox2.Location = new System.Drawing.Point(237, 182); this.checkBox2.Name = "checkBox2"; this.checkBox2.Size = new System.Drawing.Size(56, 24); this.checkBox2.TabIndex = 9; this.checkBox2.Text = "可乐"; this.checkBox2.UseVisualStyleBackColor = false; // // checkBox3 // this.checkBox3.AutoSize = true; this.checkBox3.BackColor = System.Drawing.Color.Transparent; this.checkBox3.Font = new System.Drawing.Font("微软雅黑", 10F); this.checkBox3.Location = new System.Drawing.Point(150, 212); this.checkBox3.Name = "checkBox3"; this.checkBox3.Size = new System.Drawing.Size(56, 24); this.checkBox3.TabIndex = 10; this.checkBox3.Text = "豆浆"; this.checkBox3.UseVisualStyleBackColor = false; // // checkBox4 // this.checkBox4.AutoSize = true; this.checkBox4.BackColor = System.Drawing.Color.Transparent; this.checkBox4.Font = new System.Drawing.Font("微软雅黑", 10F); this.checkBox4.Location = new System.Drawing.Point(344, 212); this.checkBox4.Name = "checkBox4"; this.checkBox4.Size = new System.Drawing.Size(56, 24); this.checkBox4.TabIndex = 11; this.checkBox4.Text = "圣代"; this.checkBox4.UseVisualStyleBackColor = false; this.checkBox4.CheckedChanged += new System.EventHandler(this.checkBox4_CheckedChanged); // // checkBox5 // this.checkBox5.AutoSize = true; this.checkBox5.BackColor = System.Drawing.Color.Transparent; this.checkBox5.Font = new System.Drawing.Font("微软雅黑", 10F); this.checkBox5.Location = new System.Drawing.Point(236, 212); this.checkBox5.Name = "checkBox5"; this.checkBox5.Size = new System.Drawing.Size(70, 24); this.checkBox5.TabIndex = 12; this.checkBox5.Text = "蔬菜汤"; this.checkBox5.UseVisualStyleBackColor = false; // // checkBox6 // this.checkBox6.AutoSize = true; this.checkBox6.BackColor = System.Drawing.Color.Transparent; this.checkBox6.Font = new System.Drawing.Font("微软雅黑", 10F); this.checkBox6.Location = new System.Drawing.Point(344, 182); this.checkBox6.Name = "checkBox6"; this.checkBox6.Size = new System.Drawing.Size(56, 24); this.checkBox6.TabIndex = 13; this.checkBox6.Text = "牛奶"; this.checkBox6.UseVisualStyleBackColor = false; // // label5 // this.label5.AutoSize = true; this.label5.BackColor = System.Drawing.Color.Transparent; this.label5.Font = new System.Drawing.Font("微软雅黑", 10F); this.label5.ForeColor = System.Drawing.Color.White; this.label5.Location = new System.Drawing.Point(36, 258); this.label5.Name = "label5"; this.label5.Size = new System.Drawing.Size(93, 20); this.label5.TabIndex = 14; this.label5.Text = "请输入地址："; // // label6 // this.label6.AutoSize = true; this.label6.BackColor = System.Drawing.Color.Transparent; this.label6.Font = new System.Drawing.Font("微软雅黑", 10F); this.label6.ForeColor = System.Drawing.Color.White; this.label6.Location = new System.Drawing.Point(36, 331); this.label6.Name = "label6"; this.label6.Size = new System.Drawing.Size(93, 20); this.label6.TabIndex = 15; this.label6.Text = "请输入电话："; this.label6.Click += new System.EventHandler(this.label6_Click); // // textBox1 // this.textBox1.Font = new System.Drawing.Font("微软雅黑", 10F); this.textBox1.Location = new System.Drawing.Point(149, 258); this.textBox1.Multiline = true; this.textBox1.Name = "textBox1"; this.textBox1.Size = new System.Drawing.Size(264, 55); this.textBox1.TabIndex = 16; // // textBox2 // this.textBox2.Font = new System.Drawing.Font("微软雅黑", 10F); this.textBox2.Location = new System.Drawing.Point(149, 331); this.textBox2.Multiline = true; this.textBox2.Name = "textBox2"; this.textBox2.Size = new System.Drawing.Size(263, 24); this.textBox2.TabIndex = 17; // // button1 // this.button1.BackColor = System.Drawing.Color.Transparent; this.button1.Font = new System.Drawing.Font("微软雅黑", 15F); this.button1.Location = new System.Drawing.Point(179, 367); this.button1.Name = "button1"; this.button1.Size = new System.Drawing.Size(126, 37); this.button1.TabIndex = 18; this.button1.Text = "提交"; this.button1.UseVisualStyleBackColor = false; this.button1.Click += new System.EventHandler(this.button1_Click); // // Form1 // this.AutoScaleDimensions = new System.Drawing.SizeF(16F, 35F); this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font; this.BackgroundImage = global::WindowsFormsApplication1.Properties.Resources._81093c0c839ca9eff9a92b5c38ad3686; this.BackgroundImageLayout = System.Windows.Forms.ImageLayout.Stretch; this.ClientSize = new System.Drawing.Size(517, 418); this.Controls.Add(this.button1); this.Controls.Add(this.textBox2); this.Controls.Add(this.textBox1); this.Controls.Add(this.label6); this.Controls.Add(this.label5); this.Controls.Add(this.checkBox6); this.Controls.Add(this.checkBox5); this.Controls.Add(this.checkBox4); this.Controls.Add(this.checkBox3); this.Controls.Add(this.checkBox2); this.Controls.Add(this.checkBox1); this.Controls.Add(this.label4); this.Controls.Add(this.radioButton3); this.Controls.Add(this.radioButton2); this.Controls.Add(this.radioButton1); this.Controls.Add(this.label3); this.Controls.Add(this.comboBox1); this.Controls.Add(this.label2); this.Controls.Add(this.label1); this.Font = new System.Drawing.Font("微软雅黑", 20F); this.Icon = ((System.Drawing.Icon)(resources.GetObject("$this.Icon"))); this.Margin = new System.Windows.Forms.Padding(8, 7, 8, 7); this.Name = "Form1"; this.Text = "KFC"; this.ResumeLayout(false); this.PerformLayout(); } #endregion private System.Windows.Forms.Label label1; private System.Windows.Forms.Label label2; private System.Windows.Forms.ComboBox comboBox1; private System.Windows.Forms.Label label3; private System.Windows.Forms.RadioButton radioButton1; private System.Windows.Forms.RadioButton radioButton2; private System.Windows.Forms.RadioButton radioButton3; private System.Windows.Forms.Label label4; private System.Windows.Forms.CheckBox checkBox1; private System.Windows.Forms.CheckBox checkBox2; private System.Windows.Forms.CheckBox checkBox3; private System.Windows.Forms.CheckBox checkBox4; private System.Windows.Forms.CheckBox checkBox5; private System.Windows.Forms.CheckBox checkBox6; private System.Windows.Forms.Label label5; private System.Windows.Forms.Label label6; private System.Windows.Forms.TextBox textBox1; private System.Windows.Forms.TextBox textBox2; private System.Windows.Forms.Button button1; } }
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 WindowsFormsApplication1 { public partial class Form1 : Form { public Form1() { InitializeComponent(); comboBox1.SelectedIndex = 0;//设置下拉框的默认值为第一行数据而不是为空; } private void label1_Click(object sender, EventArgs e) { } private void radioButton3_CheckedChanged(object sender, EventArgs e) { } private void radioButton2_CheckedChanged(object sender, EventArgs e) { } private void label4_Click(object sender, EventArgs e) { } private void checkBox4_CheckedChanged(object sender, EventArgs e) { } private void label6_Click(object sender, EventArgs e) { } private void button1_Click(object sender, EventArgs e) { //主食 string zs = comboBox1.SelectedItem.ToString(); //配餐 string pc = ""; if (radioButton1.Checked)//判断是否选中 pc = radioButton1.Text; else if (radioButton2.Checked) pc = radioButton2.Text; else pc = radioButton3.Text; //饮品 string yp = ""; if (checkBox1.Checked)//判断饮品1是否选中 yp += checkBox1.Text; if (checkBox2.Checked) { if (yp != "")//如果前面已经有选择过的饮品就加逗号 { yp += "，"; } yp += checkBox2.Text; } if (checkBox3.Checked) { if (yp != "") { yp += "，"; } yp += checkBox3.Text; } if (checkBox4.Checked) { if (yp != "") { yp += "，"; } yp += checkBox4.Text; } if (checkBox5.Checked) { if (yp != "") { yp += "，"; } yp += checkBox5.Text; if (checkBox6.Checked) { if (yp != "") { yp += "，"; } yp += checkBox6.Text; } } //地址 string dz = textBox1.Text; //电话 string tel = textBox2.Text; MessageBox.Show("您选的的主食是：" + zs + "\r您选择的配餐是：" + pc + "\r您选择的饮品是：" + yp + "\r配送地址：" + dz + "\r联系电话：" + tel); } private void label2_Click(object sender, EventArgs e) { } } }
