program.cs
using System; using System.Collections.Generic; using System.Linq; using System.Windows.Forms; namespace NumChoose { static class Program { /// <summary> /// 应用程序的主入口点。 /// </summary> [STAThread] static void Main() { Application.EnableVisualStyles(); Application.SetCompatibleTextRenderingDefault(false); Application.Run(new Form1()); //DecimalPlaces 数字显示框中要显示的十进制数 //Hexadeccimal 指示数字是否以十六进制格式显示所包括的的值 //Increment 向上或向下单击button时,数字显示框递增或递减的值 //InterceptArrowKeys 指示用户能否够使用向上或向下键选择值 //Maximum 显示框最大值 //Minumum 显示框最小同意值 //Value NumericUpDown 空间中显示的数值 //UpDownAlign 显示框中向上或向下button的对齐方式 //DownButton 减小数字显示框中的值 //UpButton 添加数字显示框中的值 } } }
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.Windows.Forms; namespace NumChoose { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void Form1_Load(object sender, EventArgs e) { numericUpDown1.Minimum = 1; //设置最小值1 numericUpDown1.Maximum = 20; //设置最大值20 numericUpDown1.DecimalPlaces = 2; //设置空间的DecimaPlaces属性,使空间的数值小数点后两位显示 numericUpDown1.Increment = 1; //设置递增或递减 numericUpDown1.InterceptArrowKeys = true;//设置用户能够通过向上,向下键选择值 } private void numericUpDown1_ValueChanged(object sender, EventArgs e) { label2.Text = "选中的数值为: " + numericUpDown1.Value; } } }
Form1设计:
namespace NumChoose { partial class Form1 { /// <summary> /// 必需的设计器变量。 /// </summary> private System.ComponentModel.IContainer components = null; /// <summary> /// 清理全部正在使用的资源。 /// </summary> /// <param name="disposing">假设应释放托管资源,为 true;否则为 false。</param> protected override void Dispose(bool disposing) { if (disposing && (components != null)) { components.Dispose(); } base.Dispose(disposing); } #region Windows 窗口设计器生成的代码 /// <summary> /// 设计器支持所需的方法 - 不要 /// 使用代码编辑器改动此方法的内容。 /// </summary> private void InitializeComponent() { this.numericUpDown1 = new System.Windows.Forms.NumericUpDown(); this.label1 = new System.Windows.Forms.Label(); this.label2 = new System.Windows.Forms.Label(); ((System.ComponentModel.ISupportInitialize)(this.numericUpDown1)).BeginInit(); this.SuspendLayout(); // // numericUpDown1 // this.numericUpDown1.Location = new System.Drawing.Point(102, 22); this.numericUpDown1.Name = "numericUpDown1"; this.numericUpDown1.Size = new System.Drawing.Size(120, 21); this.numericUpDown1.TabIndex = 0; this.numericUpDown1.ValueChanged += new System.EventHandler(this.numericUpDown1_ValueChanged); // // label1 // this.label1.AutoSize = true; this.label1.Location = new System.Drawing.Point(37, 26); this.label1.Name = "label1"; this.label1.Size = new System.Drawing.Size(59, 12); this.label1.TabIndex = 1; this.label1.Text = "选择数字:"; // // label2 // this.label2.AutoSize = true; this.label2.Location = new System.Drawing.Point(37, 62); this.label2.Name = "label2"; this.label2.Size = new System.Drawing.Size(0, 12); this.label2.TabIndex = 2; // // Form1 // this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F); this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font; this.ClientSize = new System.Drawing.Size(305, 121); this.Controls.Add(this.label2); this.Controls.Add(this.label1); this.Controls.Add(this.numericUpDown1); this.Name = "Form1"; this.Text = "数字选择"; this.Load += new System.EventHandler(this.Form1_Load); ((System.ComponentModel.ISupportInitialize)(this.numericUpDown1)).EndInit(); this.ResumeLayout(false); this.PerformLayout(); } #endregion private System.Windows.Forms.NumericUpDown numericUpDown1; private System.Windows.Forms.Label label1; private System.Windows.Forms.Label label2; } }
时间: 2024-10-18 22:52:06