总结C#中CheckedListBox控件的使用方法

CheckedListBox checkedListBox1 = new CheckedListBox();

checkedListBox1.Items.Add("选项1");
checkedListBox1.Items.Add("选项2");
checkedListBox1.Items.Add("选项3");

// 获取选中项的索引
for (int i = 0; i < checkedListBox1.CheckedIndices.Count; i++)
{
    int selectedIndex = checkedListBox1.CheckedIndices[i];
}

// 获取选中项的值
foreach (var item in checkedListBox1.CheckedItems)
{
    string selectedValue = item.ToString();
}

checkedListBox1.CheckedChanged += CheckedListBox1_CheckedChanged;

private void CheckedListBox1_CheckedChanged(object sender, EventArgs e)
{
    // 处理选项改变的逻辑
}

checkedListBox1.SetItemChecked(0, true); // 默认选中第一个选项

List<string> dataList = new List<string> { "选项1", "选项2", "选项3" };
checkedListBox1.DataSource = dataList;

checkedListBox1.ItemCheck += CheckedListBox1_ItemCheck;

private void CheckedListBox1_ItemCheck(object sender, ItemCheckEventArgs e)
{
    // 修改选项样式
    if (e.NewValue == CheckState.Checked)
    {
        checkedListBox1.SetItemChecked(e.Index, true);
        checkedListBox1.SetItemCheckState(e.Index, CheckState.Indeterminate);
    }
}

checkedListBox1.CheckOnClick = true;