问题是什么？ button5无法正常工作 [英] what is the problem? button5 do not working

问题描述

button5有什么问题？当你点击什么都没有请帮助。

what is the problem at button5 ? When you click does nothing pls help .

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;
using System.IO;



namespace WindowsFormsApplication2
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        OpenFileDialog ofd = new OpenFileDialog();
        FolderBrowserDialog fbd = new FolderBrowserDialog();
      

        private void button1_Click(object sender, EventArgs e)
        {
            ofd.Filter = "PNG files |*.png|JPG files|*.jpg|JPGE files|*.jpge|DOC files|*.doc|DOCX files|*.docx|MP3 files|*.mp3|PDF files |*.pdf";


            ofd.Multiselect = true;
            if (ofd.ShowDialog() == DialogResult.OK)
            {
                string[] fileNameAndPath = ofd.FileNames;
                string[] filename = ofd.SafeFileNames;
                for (int i = 0; i < ofd.SafeFileNames.Count(); i++)
                {
                    listView1.Items.Add(filename[i]);
                }
            }
        }

     

        private void button2_Click(object sender, EventArgs e)
        {
           
            if (fbd.ShowDialog() == DialogResult.OK)
            {
         
                string folderpath = fbd.SelectedPath;
             
                string supportedExtensions = "*.jpg,*.png,*.jpge,*.doc,*.docx,*.mp3,*.pdf";
                foreach (string f in Directory.GetFiles(folderpath, "*.*", SearchOption.AllDirectories).Where(s => supportedExtensions.Contains(Path.GetExtension(s).ToLower())))
                {
                    ListViewItem lvi = new ListViewItem();
                    listView1.Items.Add(Path.GetFileName((f)));
                    lvi.SubItems.Add(Path.GetFullPath((f)));
                    listView1.Items.Add(lvi);
                       
         
                    
                }
            }
        }

        private void button3_Click(object sender, EventArgs e)
        { 
            for (int i = 0; i < listView1.Items.Count; i++)
            
                if (listView1.Items[i].Selected)
                {
                    listView1.Items[i].Remove();
                    i--;
                }

        }

        private void button4_Click(object sender, EventArgs e)
        {
            listView1.Items.Remove(listView1.SelectedItems[0]);
           

        }

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

        private void infoToolStripMenuItem_Click(object sender, EventArgs e)
        {
            MessageBox.Show("lalala");
        }

        private void button5_Click(object sender, EventArgs e)
        {
            //face legatura cu al doile form
            Form2 ff=new Form2();
            ff.MdiParent=this;
            //sortare
         for (int j = 0;j< listView1.Items.Count - 1; j++)
            {
                string sc = Convert.ToString(listView1.Items[j].Text);
                for (int j1 = 0; j1 < listView1.Items.Count; j1++)
                    if (String.CompareOrdinal(sc, Convert.ToString(listView1.Items[j1].Text)) < 0)
                    {
                        ListViewItem l = new ListViewItem(listView1.Items[j].Text,0);
                        l.SubItems.Add(Convert.ToString(listView1.Items[j].SubItems[1].Text));
                        listView1.Items.RemoveAt(j);
                        listView1.Items.Insert(j, listView1.Items[j1]);
                        listView1.Items.Insert(j1, l);
                        
                    }
        }

       //foreach (ListViewItem item in listView1.Items)
             // verifica daca au acelasi nume,tip,marime 
               for (int j = 0;j< listView1.Items.Count - 1; j++)
            {
             string str = Convert.ToString(listView1.Items[j].SubItems[1].Text);
             string s = Path.GetFileName(str);
                  for (int j1 = 0; j1 < listView1.Items.Count; j1++)
                  {
                      string str2=Convert.ToString(listView1.Items[j1].SubItems[1].Text);
                 if (s.Equals(Path.GetFileName(str2)) )
                 {
                     FileInfo f = new FileInfo(str);
	                  long s1 = f.Length;
	                FileInfo f2 = new FileInfo(str2);
	                long s2 = f2.Length;

                    if (s1.Equals(s2))
                    {//trimite catre form2
                        ff.valoaretransmisa = listView1.Items[j];
                    }

                     }
                  }
                 }




            ff.ShowDialog();
            
           


             }

      
       


      
      

        
    }
}

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;
using System.IO;

namespace WindowsFormsApplication2
{
    public partial class Form2 : Form
    {
        public Form2()
        {
            InitializeComponent();
        }

      private ListViewItem lvi;
         public ListViewItem  valoaretransmisa
        {
            get { return lvi; }
            set { lvi=value;
                listView1.Items.Add(lvi); }
            
        }

        private void button1_Click(object sender, EventArgs e)
        {
            if (MessageBox.Show("Vrei sa stergi?","titlu", MessageBoxButtons.YesNo, MessageBoxIcon.Question)
            == DialogResult.Yes)
            {

                for (int i = 0; i < listView1.Items.Count; i++)
                    File.Delete(Convert.ToString(listView1.Items[i].SubItems[1].Text));
            }

        }

        private void button2_Click(object sender, EventArgs e)
        {
            Application.Exit();
        }

        private void Form2_Load(object sender, EventArgs e)
        {

        }

        }     
    
}

推荐答案

让我们来看看Windows Forms应用程序的示例。



Form1.cs

Hi,

let's have a look at an example Windows Forms application.

Form1.cs

using System;
using System.Windows.Forms;

namespace WindowsFormsApplication2
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {

        }
    }
}

如果您有Form1.cs，还会有

Form1.Designer.cs

If you have Form1.cs there will also be
Form1.Designer.cs

namespace WindowsFormsApplication2
{
    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.SuspendLayout();
            //
            // button1
            //
            this.button1.Location = new System.Drawing.Point(12, 12);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(75, 23);
            this.button1.TabIndex = 0;
            this.button1.Text = "button1";
            this.button1.UseVisualStyleBackColor = true;
            this.button1.Click += new System.EventHandler(this.button1_Click);
            //
            // Form1
            //
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(284, 262);
            this.Controls.Add(this.button1);
            this.Name = "Form1";
            this.Text = "Form1";
            this.ResumeLayout(false);

        }

        #endregion

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

自动生成并在例如自动更新时自动更新你将一个按钮

拖到Windows窗体并指定双击。

请检查所有按钮点击事件是否已连线。

例如this.button5.Click + = new System.EventHandler（this.button5_Click）;



祝你好运，

Stephan

which is auto-generated and auto-updated when e.g. you drag a button
to the Windows Form and assign a double-click.
Please check if all button click events are wired up.
e.g. this.button5.Click += new System.EventHandler(this.button5_Click);

Best regards,
Stephan

按钮和事件可能已断开连接。

检查按钮及其映射代码到click事件。

The button and event might have got disconnected.
Check the button and its mapping code to the click event.

以上两者建议很好。



单击调试模式可以看到单击按钮时会发生什么。你可以在按钮5_click（）上设置一个BreakPoint，然后在debug中运行。当你点击按钮并显示代码供你使用F11单步执行时它应该停止。



如果它永远不会到达，或者没有中断，那么检查按钮的Click属性并确保它指向button5_Click（）方法。

Both of the above suggestions are GOOD ones.

Stepping through in the Debug mode will allow you see what happens when you click the button. You could alwats set a "BreakPoint" at the button5_click(), then run in debug. It should stop when you click the button and show the code for you to use F11 to step through.

If it never gets here, or doesn't break, then check your button's "Click" property and make sure it's pointing to the button5_Click() method.

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