In This Example we can Traverse the listview item up and down or Next and Previous.
Lets Start Step by Step.
Step 1 : Creating a Window Application.
Step 2 : Drag and Drop 3 Controls in Default page from Toolbox
1- ListView (Name=”listView1″)
2- Button (Name=”btnUP”,Text=”UP”)
3- Button (Name=”btnDown”,Text=”DOWN”)
Step 3: double Click on Up and Down Button for Generate the Click Event
Step 4 :Create function for Fill the list View
private void BindListView()
{
string[] array = { “ListItem1”, “ListItem2”, “ListItem3”, “ListItem4”, “ListItem5”, “ListItem6” };
var items = listView1.Items;
foreach (var value in array)
{
items.Add(value);
}
}
Step 5: Do Code for Up and Down Button
// UP Button
private void btnUP_Click(object sender, EventArgs e)
{
int index = listView1.SelectedItems[0].Index;
if (index < listView1.Items.Count - 1)
{
listView1.Select();
listView1.Items[index + 1].Selected = true;
btnDown.Enabled = true;
if ((index = listView1.SelectedItems[0].Index) == listView1.Items.Count - 1)
btnUP.Enabled = false;
}
else
btnUP.Enabled = false;
}
// Down Button
private void btnDown_Click(object sender, EventArgs e)
{
int index = listView1.SelectedItems[0].Index;
if (index > 0)
{
listView1.Select();
listView1.Items[index - 1].Selected = true;
btnUP.Enabled = true;
if ((index = listView1.SelectedItems[0].Index) == 0)
btnDown.Enabled = false;
}
else
btnDown.Enabled = false;
}
Step 6: For Assistance i am Coping all page Code
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 WindowsFormsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
BindListView();
listView1.MultiSelect = false;
listView1.Select();
listView1.Items[0].Selected = true;
}
private void Form1_Load_1(object sender, EventArgs e)
{
}
private void BindListView()
{
string[] array = { "ListItem1", "ListItem2", "ListItem3", "ListItem4", "ListItem5", "ListItem6" };
var items = listView1.Items;
foreach (var value in array)
{
items.Add(value);
}
}
private void btnUP_Click(object sender, EventArgs e)
{
int index = listView1.SelectedItems[0].Index;
if (index < listView1.Items.Count - 1)
{
listView1.Select();
listView1.Items[index + 1].Selected = true;
btnDown.Enabled = true;
if ((index = listView1.SelectedItems[0].Index) == listView1.Items.Count - 1)
btnUP.Enabled = false;
}
else
btnUP.Enabled = false;
}
private void btnDown_Click(object sender, EventArgs e)
{
int index = listView1.SelectedItems[0].Index;
if (index > 0)
{
listView1.Select();
listView1.Items[index - 1].Selected = true;
btnUP.Enabled = true;
if ((index = listView1.SelectedItems[0].Index) == 0)
btnDown.Enabled = false;
}
else
btnDown.Enabled = false;
}
}
}
Asp.Net , Sql queries Code Example 