ListView控件（在ListView失去焦点的情况下仍然保持Item高亮）
添加列：
在“属性”窗口中，将该控件的 View 属性设置为 Details。
在“属性”窗口中，单击 Columns 属性旁的“省略号”按钮 ()。
出现“ColumnHeader 集合编辑器”。
使用“添加”按钮添加新列。然后可以选择列标题并设置其文本（列的标题文字）、文本对齐方式和宽度。
代码
private void button2_Click(object sender, EventArgs e)
{
if (listView1.SelectedItems.Count > 0)
MessageBox.Show(listView1.SelectedItems[0].Text);
else
MessageBox.Show("请选择");
}private void ListviewDemo_Load(object sender, EventArgs e)
{
listView1.Items.Add(new ListViewItem(new string[] { "A", "a" }));
listView1.Items.Add(new ListViewItem(new string[] { "B", "b" }));
listView1.Items.Add(new ListViewItem(new string[] { "C", "c" }));
listView1.Items.Add(new ListViewItem(new string[] { "D", "d" }));
listView1.Items.Add(new ListViewItem(new string[] { "A", "a" }));
listView1.Items.Add(new ListViewItem(new string[] { "B", "b" }));
listView1.Items.Add(new ListViewItem(new string[] { "C", "c" }));
listView1.Items.Add(new ListViewItem(new string[] { "D", "d" }));
listView1.Items.Add(new ListViewItem(new string[] { "A", "a" }));
listView1.Items.Add(new ListViewItem(new string[] { "B", "b" }));
listView1.Items.Add(new ListViewItem(new string[] { "C", "c" }));
listView1.Items.Add(new ListViewItem(new string[] { "D", "d" }));
listView1.Items.Add(new ListViewItem(new string[] { "A", "a" }));
listView1.Items.Add(new ListViewItem(new string[] { "B", "b" }));
listView1.Items.Add(new ListViewItem(new string[] { "C", "c" }));
listView1.Items.Add(new ListViewItem(new string[] { "D", "d" }));
listView1.Items.Add(new ListViewItem(new string[] { "A", "a" }));
listView1.Items.Add(new ListViewItem(new string[] { "B", "b" }));
listView1.Items.Add(new ListViewItem(new string[] { "C", "c" }));
listView1.Items.Add(new ListViewItem(new string[] { "D", "d" }));
listView1.Items.Add(new ListViewItem(new string[] { "A", "a" }));
listView1.Items.Add(new ListViewItem(new string[] { "B", "b" }));
listView1.Items.Add(new ListViewItem(new string[] { "C", "c" }));
listView1.Items.Add(new ListViewItem(new string[] { "D", "d" }));
listView1.Items.Add(new ListViewItem(new string[] { "A", "a" }));
listView1.Items.Add(new ListViewItem(new string[] { "B", "b" }));
listView1.Items.Add(new ListViewItem(new string[] { "C", "c" }));
listView1.Items.Add(new ListViewItem(new string[] { "D", "d" }));
}private void toolStripMenuItem1_Click(object sender, EventArgs e)
{
listView1.Items.Add(new ListViewItem(new string[] { "添加", "添加" }));
}private void toolStripMenuItem2_Click(object sender, EventArgs e)
{
MessageBox.Show("删除" + listView1.SelectedItems[0].Text);
listView1.SelectedItems[0].Remove();
}#region 在ListView失去焦点的情况下仍然保持Item高亮
private void listView_Validated(object sender, EventArgs e)
{
if (listView1.FocusedItem != null)
{
listView1.FocusedItem.BackColor = SystemColors.Highlight;
listView1.FocusedItem.ForeColor = Color.White;
listView1.SelectedIndices.Add(listView1.FocusedItem.Index);//**真正让其选择
}
}private void listView_ItemSelectionChanged(object sender, ListViewItemSelectionChangedEventArgs e)
{
e.Item.ForeColor = Color.Black;
e.Item.BackColor = SystemColors.Window;if (listView1.FocusedItem != null)
{
listView1.FocusedItem.Selected = true;
}
}
#endregion
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