listview 问题

Question

System.ArgumentOutOfRangeException: InvalidArgument=“1”的值对于“index”无效。
参数名: index
绑定的listview 当点击的时候出现这情况 怎么解决呢？

Answer 1

http://topic.csdn.net/u/20100612/16/d439eef1-e4df-4a8b-8ceb-50370a22f637.html
希望对你有帮助

Answer 2

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Collections;
using System.IO;
namespace 日记本
{
    public partial class Form2 : Form
    {        public Form2()
        {
            InitializeComponent();
        }
        string path = Application.StartupPath + "\\" + "file.txt";
        private void BtnSaveriji_Click(object sender, EventArgs e)
        {
            string title = txttitle.Text;
            string type = comType.Text;
            string tq = comtq.Text;
            string time = dateTimePicker1.Text;
            string content = myRichTextBox1.Text;
            string info = title + "," + type + "," + tq + "," + time + "," + content;
            WriteFileAdd(path,info);
            al = ReadFile(path);
            BdListView(al);
            MessageBox.Show("保存成功","提示");        }
        //写入
        public void WriteFileAdd(string path, string info)
        {
            StreamWriter sw = new StreamWriter(path, true, Encoding.UTF8);
            sw.WriteLine(info);
            sw.Close();
        }
        public ArrayList ReadFile(string path)
        {
            ArrayList al = new ArrayList();
            if (File.Exists(path))
            {
                //读出来
                StreamReader sr = new StreamReader(path, Encoding.UTF8);
                while (sr.Peek() >= 0)
                {
                    al.Add(sr.ReadLine());
                }
                sr.Close();
            }
            return al;
        }
        public void WriteFile(string path, ArrayList al)
        {
            StreamWriter sw = new StreamWriter(path, false, Encoding.UTF8);
            foreach (string s in al)
            {
                sw.WriteLine(s);
            }
            sw.Close();
        }
    
        ArrayList al = null;
        public void BdListView(ArrayList al)
        {
            listView1.Items.Clear();
            //在ListView里面显示
            foreach (string s in al)
            {
                string[] str = s.Split(',');
                ListViewItem li = listView1.Items.Add(str[0]);                for (int i = 1; i < listView1.Columns.Count; i++)
                {
                    li.SubItems.Add(str[i]);
                }
            }
        }
        public int indexs;
        private void listView1_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (listView1.SelectedItems.Count > 0)
            {
                ListViewItem li = new ListViewItem();
                txttitle.Text=li.SubItems[0].Text;
                comType.Text = li.SubItems[1].Text;
                comtq.Text=li.SubItems[2].Text;
                dateTimePicker1.Text=li.SubItems[3].Text;
                myRichTextBox1.Text=li.SubItems[4].Text;
                string re = li.SubItems[0].Text + li.SubItems[1].Text + li.SubItems[2].Text + li.SubItems[3].Text + li.SubItems[4].Text;
                indexs = al.IndexOf(re);
            }
        }        private void 删除日记ToolStripMenuItem_Click(object sender, EventArgs e)
        {            if (listView1.SelectedItems.Count > 0)
            {
                listView1.Items.Remove(listView1.SelectedItems[0]);
                //把本地的信息也删除掉
                al.RemoveAt(indexs);
                //    //再一次写在本地
                WriteFile(path, al);
                al = ReadFile(path);
                BdListView(al);
            }
        }        private void Form2_Load(object sender, EventArgs e)
        {
            al = ReadFile(path);
            BdListView(al);
        }    }
}

Answer 3

看看BdListView中的listView1.Items.Clear();会不会触发listView1_SelectedIndexChanged，这样就有可能引发越界访问错误，你组好在listView1_SelectedIndexChanged中加一个容错的判断吧

Answer 4

private void listView1_SelectedIndexChanged(object sender, EventArgs e)
   {
   if (listView1.SelectedItems.Count > 0)
   {
   ListViewItem li = new ListViewItem();
   txttitle.Text=li.SubItems[0].Text;
   comType.Text = li.SubItems[1].Text;
   comtq.Text=li.SubItems[2].Text;
   dateTimePicker1.Text=li.SubItems[3].Text;
   myRichTextBox1.Text=li.SubItems[4].Text;
   string re = li.SubItems[0].Text + li.SubItems[1].Text + li.SubItems[2].Text + li.SubItems[3].Text + li.SubItems[4].Text;
   indexs = al.IndexOf(re);
   }
   }
刚才是ListViewItem li = new ListViewItem();错了 改成ListViewItem li = listView1.SelectedItems[0];后 变成InvalidArgument=“3”的值对于“index”无效。就是 dateTimePicker1.Text=li.SubItems[3].Text;出错了  怎么解决呢