js Html页面控件的获取值

来源：互联网发布：好八字是什么知乎编辑：程序博客网时间：2024/05/17 06:34

1.//复选框全选
        function GetOkAll(checkall) {
            var grid = document.getElementById('gridPD');
            var items = grid.getElementsByTagName("input");
            for (i = 0; i < items.length; i++) {
                if (items[i].type == "checkbox") {
                    items[i].checked = checkall.checked;
                }
            }
        }
2. //自动调整计算
        function AutoSum(index, type) {
            var table = document.getElementById("gridPD"); //gridview的ID
            var txt = index.value;
            var tr = table.getElementsByTagName("tr"); //gridview下的Tr
            var k = index.parentNode.parentNode.rowIndex; //行索引
            var Amount = tr[k].getElementsByTagName("td")[4].innerHTML; //总金额
            var auto = parseFloat(Amount) - parseFloat(txt);

            if (type == "1") {tr[k].getElementsByTagName("td")[7].getElementsByTagName("input")[0].value=Math.round(auto* 100) / 100; }
            if (type == "2") {tr[k].getElementsByTagName("td")[6].getElementsByTagName("input")[0].value=Math.round(auto* 100) / 100; }

}

3.//下拉列表

document.getElementById("Edit_SendBranch").disabled = "disabled";//设置Edit_SendBranch不可用

document.getElementById("Edit_SendBranch").options[1].selected=true;//设置选中

document.getElementById("Edit_SendBranch").options[i].selected = "selected";;//设置选中

4.//单选列表

objArr = document.getElementById('ListSendType').children;

if (objArr[0].checked == true)//判断选中哪个