问题描述

我创建了两个 RadioButton(重量和高度).我会在这两个类别之间切换.但它们共享相同的 ListBox 控制器(listBox1 和 listBox2).

I created two RadioButton (Weight and Height). I will do switch between the two categories. But the they share the same ListBox Controllers (listBox1 and listBox2).

有没有什么好方法可以更简单地清除所有 ListBox 项?我没有找到 ListBox 的 removeAll().我不喜欢我在这里发布的复杂的多线样式.

Is there any good method to clear all the ListBox items simpler? I didn't find the removeAll() for ListBox. I don't like my complex multi-lines style which I posted here.

private void Weight_Click(object sender, RoutedEventArgs e)
    {
        // switch between the radioButton "Weith" and "Height"
        // Clear all the items first
        listBox1.Items.Remove("foot"); 
        listBox1.Items.Remove("inch");
        listBox1.Items.Remove("meter");
        listBox2.Items.Remove("foot");
        listBox2.Items.Remove("inch");
        listBox2.Items.Remove("meter");

        // Add source units items for listBox1
        listBox1.Items.Add("kilogram");
        listBox1.Items.Add("pound");

        // Add target units items for listBox2
        listBox2.Items.Add("kilogram");
        listBox2.Items.Add("pound");
    }

    private void Height_Click(object sender, RoutedEventArgs e)
    {
        // switch between the radioButton "Weith" and "Height"
        // Clear all the items first
        listBox1.Items.Remove("kilogram");
        listBox1.Items.Remove("pound");
        listBox2.Items.Remove("kilogram");
        listBox2.Items.Remove("pound");

        // Add source units items for listBox1
        listBox1.Items.Add("foot");
        listBox1.Items.Add("inch");
        listBox1.Items.Add("meter");

        // Add target units items for listBox2
        listBox2.Items.Add("foot");
        listBox2.Items.Add("inch");
        listBox2.Items.Add("meter");
    }

推荐答案

和Winform和Webform的方式不一样?

isn't the same as the Winform and Webform way?

listBox1.Items.Clear();

这篇关于如何删除所有 ListBox 项目?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持编程学习网！