Question

我有两个类似此照片的列表框：

如您所见，选择了两侧。我想知道当单击另一个列表时如何取消选择一个列表。有可能吗？

Answer 1

以下代码可能会帮助您解决问题，但是您也可以在函数的selectedIndexChanged事件上添加clearSelected函数。

    namespace StackoverFlow4
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            button1.Text = "UnSelected";
        }

        private void Form1_Load(object sender, EventArgs e)
        {

        }

        private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
        {
            button1.Text = "Selected";
            pictureBox1.BackgroundImage = StackoverFlow4.Properties.Resources.tick;
            button1.Text = "Clear Selected";
        }

        private void button1_Click(object sender, EventArgs e)
        {
            listBox1.ClearSelected();
            listBox2.ClearSelected();
            button1.Text = "UnSelected";
            pictureBox1.BackgroundImage = StackoverFlow4.Properties.Resources.cross;
            pictureBox2.BackgroundImage = StackoverFlow4.Properties.Resources.cross;
        }

        private void listBox2_SelectedValueChanged(object sender, EventArgs e)
        {
            pictureBox2.BackgroundImage = StackoverFlow4.Properties.Resources.tick;
            button1.Text = "Clear Selected";
        }
    }
}

首先两个都未被选中清除列表（如果要选择）如果两者都选中，则清除两者

我在这里太新了，对不起保持祝福

Answer 2

您只需要在相应的列表框中为SelectedIndexChange添加一个事件侦听器，如下所示：

    // Have Box1 deselect any Box2 inputs on index change.
    private void listBox1_SelectedIndexChanged(object sender, EventArgs e) {
        listBox2.ClearSelected();
    }

    // Have Box2 deselect any Box1 inputs on index change.
    private void listBox2_SelectedIndexChanged(object sender, EventArgs e) {
        listBox1.ClearSelected();
    }

要检出的其他资源：Unselect All Items in a Listbox

选择另一个时取消选择列表框

2 个答案: