checkbox的全选和反选可以通过VBA来控制,这种设计常见于一些交互式报表,代码如下: 1.分成两个IF判断 Private Sub CheckBox1_Click() ‘checkbox为总控,通过点击它来实现全选或反选 Dim b3 As Integer Dim i As Integer Dim b1 As Range If Sheets(1).CheckBox1.Value Then ’第一个IF判断为全选的条件时 b3 = Sheets(1).Range("h50&quo
var checked = document.getElementsByName("checked_c[]"); var checked_counts = 0; for(var i = 0; i < checked.length; i ++){ if(checked[i].checked){ checked_counts++; } } checked_counts 即是统计复选框选中个数
最近项目中需要用jquery判断input里checkbox是否被选中,发现用attr()获取不到复选框改变后的状态,最后查资料发现jQuery 1.6以后新增加了prop()方法,借用官方的一段描述就是: The difference between attributes and properties can be important in specific situations. Before jQuery 1.6, the .attr() method sometimes took pro