checkbox 选中事件js动态生成的checkbox取值和选中事件

checkbox 选中事件

private void checkBox1_Click(object sender, EventArgs e) { if (checkBox1.Checked) { MessageBox.Show("选中"); } }

js动态生成的checkbox取值和选中事件

&lt;script type=&quot;text/javascript&quot;&gt;<br>window.onload = function() {<br>        // 创建 input 元素<br>        var checkbox = document.createElement(&quot;input&quot;);<br>        checkbox.type = &quot;checkbox&quot;;<br>        checkbox.value = &quot;123&quot;;<br><br>        // 页面添加 checkbox<br>        document.body.appendChild(checkbox);<br><br>// 点击<br>        checkbox.onclick = function() {<br>                if(this.checked) {<br>                        alert(&quot;选中&quot;);<br>                }<br>                else {<br>                        alert(&quot;未选中&quot;);<br>                }<br>                alert(&quot;value: &quot; + this.value);<br>        }<br>};<br>&lt;/script&gt;