using System;
using System.IO;
using System.Reflection;
using System.Windows.Forms;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;namespace 获取指定目录下dll中所有的指定类的方法名
{public partial class Form1 : Form{public Form1(){InitializeComponent();}private void button1_Click(object sender, EventArgs e){var targetAssembly = Assembly.Load(File.ReadAllBytes(this.Text));//文件以二进制的方式加载到程序var targetType = targetAssembly.GetType(className.Text);//定位指定的类var targetMethods = targetType.GetMethods();//定位指定的方法listBox1.Items.Clear();foreach (var targetMethod in targetMethods){if (targetMethod.ToString().Substring(0, 5) != "Void ") continue;               listBox1.Items.Add(targetMethod.Name);}if (listBox1.Items.Count!=0){listBox1.SelectedItem = listBox1.Items[listBox1.Items.Count - 1];methodName.Text = listBox1.Items[listBox1.Items.Count - 1].ToString();}readJson();}private void listBox1_Click(object sender, EventArgs e){if (listBox1.SelectedItem != null){methodName.Text = listBox1.SelectedItem.ToString();}}private void button2_Click(object sender, EventArgs e){string jsonfile = @"d:\cmd.json";StringWriter sw = new StringWriter();JsonTextWriter writer = new JsonTextWriter(sw);writer.WriteStartObject();  //   {  （Json数据的大括号左边 ）writer.WritePropertyName("DllName");writer.WriteValue(dllName.Text);writer.WritePropertyName("ClassName");writer.WriteValue(className.Text);writer.WritePropertyName("MethodName");writer.WriteValue(methodName.Text);writer.WriteEndObject();//}StreamWriter wtyeu = new StreamWriter(jsonfile);wtyeu.Write(sw);wtyeu.Flush();wtyeu.Close();readJson();}void readJson(){string jsonfile = @"d:\cmd.json";try{using (StreamReader file = File.OpenText(jsonfile)){using (JsonTextReader reader = new JsonTextReader(file)){JObject o = (JObject)JToken.ReadFrom(reader);label2.Text = "当前的方法名是:" + o["MethodName"].ToString();}}}catch { }}private void Form1_Load(object sender, EventArgs e){button1_Click( sender,  e);            }}
}

namespace 获取指定目录下dll中所有的指定类的方法名
{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 - 不要修改/// 使用代码编辑器修改此方法的内容。/// </summary>private void InitializeComponent(){this.dllName = new System.Windows.Forms.TextBox();this.className = new System.Windows.Forms.TextBox();this.listBox1 = new System.Windows.Forms.ListBox();this.button1 = new System.Windows.Forms.Button();this.methodName = new System.Windows.Forms.TextBox();this.button2 = new System.Windows.Forms.Button();this.label1 = new System.Windows.Forms.Label();this.label2 = new System.Windows.Forms.Label();this.SuspendLayout();// // dllName// this.dllName.Enabled = false;this.dllName.Location = new System.Drawing.Point(79, 4);this.dllName.Name = "dllName";this.dllName.Size = new System.Drawing.Size(87, 21);this.dllName.TabIndex = 0;this.dllName.Text = "CadBasic.dll";this.dllName.TextAlign = System.Windows.Forms.HorizontalAlignment.Center;// // className// this.className.Enabled = false;this.className.Location = new System.Drawing.Point(172, 4);this.className.Name = "className";this.className.Size = new System.Drawing.Size(103, 21);this.className.TabIndex = 1;this.className.Text = "CadBasic.cmd";this.className.TextAlign = System.Windows.Forms.HorizontalAlignment.Center;// // listBox1// this.listBox1.FormattingEnabled = true;this.listBox1.ItemHeight = 12;this.listBox1.Location = new System.Drawing.Point(79, 26);this.listBox1.Name = "listBox1";this.listBox1.Size = new System.Drawing.Size(196, 112);this.listBox1.TabIndex = 2;this.listBox1.Click += new System.EventHandler(this.listBox1_Click);this.listBox1.DoubleClick += new System.EventHandler(this.button2_Click);// // button1// this.button1.Location = new System.Drawing.Point(46, 26);this.button1.Name = "button1";this.button1.Size = new System.Drawing.Size(27, 112);this.button1.TabIndex = 3;this.button1.Text = "刷新";this.button1.UseVisualStyleBackColor = true;this.button1.Click += new System.EventHandler(this.button1_Click);// // methodName// this.methodName.Enabled = false;this.methodName.Location = new System.Drawing.Point(281, 4);this.methodName.Name = "methodName";this.methodName.Size = new System.Drawing.Size(103, 21);this.methodName.TabIndex = 4;this.methodName.TextAlign = System.Windows.Forms.HorizontalAlignment.Center;// // button2// this.button2.Location = new System.Drawing.Point(281, 31);this.button2.Name = "button2";this.button2.Size = new System.Drawing.Size(103, 23);this.button2.TabIndex = 5;this.button2.Text = "确定";this.button2.UseVisualStyleBackColor = true;this.button2.Click += new System.EventHandler(this.button2_Click);// // label1// this.label1.AutoSize = true;this.label1.Location = new System.Drawing.Point(12, 141);this.label1.Name = "label1";this.label1.Size = new System.Drawing.Size(179, 12);this.label1.TabIndex = 6;this.label1.Text = "确定之后内容修改入D:\\cmd.json";// // label2// this.label2.AutoSize = true;this.label2.Location = new System.Drawing.Point(234, 141);this.label2.Name = "label2";this.label2.Size = new System.Drawing.Size(89, 12);this.label2.TabIndex = 7;this.label2.Text = "当前的方法名是";// // Form1// this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;this.ClientSize = new System.Drawing.Size(432, 162);this.Controls.Add(this.label2);this.Controls.Add(this.label1);this.Controls.Add(this.button2);this.Controls.Add(this.methodName);this.Controls.Add(this.button1);this.Controls.Add(this.listBox1);this.Controls.Add(this.className);this.Controls.Add(this.dllName);this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedToolWindow;this.MaximizeBox = false;this.MinimizeBox = false;this.Name = "Form1";this.Text = "F:\\编程\\2022\\C#\\AutoCADDemo\\LoadX\\bin\\Debug\\CadBasic.dll";this.Load += new System.EventHandler(this.Form1_Load);this.ResumeLayout(false);this.PerformLayout();}#endregionprivate System.Windows.Forms.TextBox dllName;private System.Windows.Forms.TextBox className;private System.Windows.Forms.ListBox listBox1;private System.Windows.Forms.Button button1;private System.Windows.Forms.TextBox methodName;private System.Windows.Forms.Button button2;private System.Windows.Forms.Label label1;private System.Windows.Forms.Label label2;}
}