Question

CheckedListBox 怎么让它单选

Answer 1

方法一：

private void checkedListBox1_ItemCheck(object sender, ItemCheckEventArgs e)
{
for (int i = 0; i < checkedListBox1.Items.Count; i++)
{
if (i != e.Index) // 不是单击的项
{

//checkedListBox1.SetItemChecked(i,false); 这一句也可以
checkedListBox1.SetItemCheckState(i, System.Windows.Forms.CheckState.Unchecked); //设置单选核心代码
}

}
string SelectedValue = checkedListBox1.Items[e.Index].ToString().Trim();//获取选定的值

}

方法二：

for (int i = 0; i < checkedListBox1.CheckedIndices.Count; i++)
{
if (checkedListBox1.CheckedIndices[i] != e.Index)
{
//checkedListBox1.SetItemCheckState(i, System.Windows.Forms.CheckState.Unchecked);
checkedListBox1.SetItemChecked(checkedListBox1.CheckedIndices[i], false);
}

string SelectedValue = checkedListBox1.Items[e.Index].ToString().Trim();//获取选定的值

}

Answer 2

private void checkedListBoxControl1_SelectedIndexChanged(object sender, EventArgs e)
{
for (int i = 0; i < checkedListBoxControl1.ItemCount; i++)
{
checkedListBoxControl1.SetItemCheckState(i, CheckState.Unchecked);
}
}

so easy!