textBox1.Text = treeView1.SelectedNode.Text; #region 利用switch case语句在listvie显示textBox 的内容。 switch (textBox1.Text) { case "计算机": case "C:\\": case "D:\\": case "E:\\": case "F:\\": case "H:\\": case "I:\\": case "G:\\": listView1.Items.Add(this.textBox1.Text); break; } 这个不算判断吗?
ch.Text = "文件名";
ch.TextAlign=HorizontalAlignment.Left;
ch.Width = 89;
listView1.Columns.Add(ch);
ColumnHeader ch1 = new ColumnHeader();
ch1.Text = "文件大小";
ch1.TextAlign = HorizontalAlignment.Center;
ch1.Width = 89;
listView1.Columns.Add(ch1);
ColumnHeader ch2 = new ColumnHeader();
ch2.Text = "时间";
ch2.TextAlign = HorizontalAlignment.Right;
ch2.Width = 89;
listView1.Columns.Add(ch2);
#region 获取计算机所有磁盘节点
TreeNode tn = treeView1.Nodes.Add("计算机");
DriveInfo[] drives = DriveInfo.GetDrives(); //using system.IO由于是静态类,不用实例化
for (int j = 0; j <drives.Length; j++)
{
TreeNode drive = new TreeNode(drives[j].ToString());
tn.Nodes.Add(drive);
}
listView1的代码呢
怎么贴的都是操作 TreeNode
你这只有加载treeview的,没有加载listview的
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.Diagnostics;
using System.IO;
namespace listview练习
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
public void button1_Click(object sender, EventArgs e)
{
try
{
string path = textBox1.Text;
System.Diagnostics.Process.Start(path);
}
catch
{
MessageBox.Show("请选择要打开的磁盘","",MessageBoxButtons.OK,MessageBoxIcon.Error);
}
}
public void treeView1_AfterSelect(object sender, TreeViewEventArgs e)
{
textBox1.Text = treeView1.SelectedNode.Text;
#region 利用switch case语句在listvie显示textBox 的内容。
switch (textBox1.Text)
{
case "计算机":
case "C:\\":
case "D:\\":
case "E:\\":
case "F:\\":
case "H:\\":
case "I:\\":
case "G:\\":
listView1.Items.Add(this.textBox1.Text);
break;
}
#endregion
}
public void Form1_Load(object sender, EventArgs e)
{
ColumnHeader ch = new ColumnHeader();
ch.Text = "文件名";
ch.TextAlign=HorizontalAlignment.Left;
ch.Width = 89;
listView1.Columns.Add(ch);
ColumnHeader ch1 = new ColumnHeader();
ch1.Text = "文件大小";
ch1.TextAlign = HorizontalAlignment.Center;
ch1.Width = 89;
listView1.Columns.Add(ch1);
ColumnHeader ch2 = new ColumnHeader();
ch2.Text = "时间";
ch2.TextAlign = HorizontalAlignment.Right;
ch2.Width = 89;
listView1.Columns.Add(ch2);
#region 获取计算机所有磁盘节点
TreeNode tn = treeView1.Nodes.Add("计算机");
DriveInfo[] drives = DriveInfo.GetDrives(); //using system.IO由于是静态类,不用实例化
for (int j = 0; j <drives.Length; j++)
{
TreeNode drive = new TreeNode(drives[j].ToString());
tn.Nodes.Add(drive);
}
//for (int i = 0; i < 10; i++)
//{
// ListViewItem lvi = new ListViewItem(); //listview类
// lvi.ImageIndex = i;
// lvi.Text = "subitem" + i;
// lvi.SubItems.Add("第2列,第" + i + "行");
// lvi.SubItems.Add("第3列,第" + i + "行");
// this.listView1.Items.Add(lvi);
//}
#endregion
}
private void listView1_SelectedIndexChanged(object sender, EventArgs e)
{
}
private void label2_Click(object sender, EventArgs e)
{
label2.Text = DateTime.Now.ToString();
}
private void timer1_Tick(object sender, EventArgs e)
{
label2.Text= DateTime.Now.ToString();
}
private void button2_Click(object sender, EventArgs e)
{
int Index=0;
if (this.listView1.SelectedItems.Count > 0)//判断listview有被选中项
{
Index = this.listView1.SelectedItems[0].Index;//取当前选中项的index,SelectedItems[0]这必须为0
listView1.Items[Index].Remove();
}
}
}
}
{
....
listView1.Items.Clear();
}
怎么是点按钮或点treeview才去加载listview
而且即使这样操作,也要判断点的是不是空白的地方啊
什么都没点你也往上加,加入的当然就是空的
#region 利用switch case语句在listvie显示textBox 的内容。
switch (textBox1.Text)
{
case "计算机":
case "C:\\":
case "D:\\":
case "E:\\":
case "F:\\":
case "H:\\":
case "I:\\":
case "G:\\":
listView1.Items.Add(this.textBox1.Text);
break;
}
这个不算判断吗?