如何在asp.net中使用javascript来获得选定的CheckBoxList物品价值

问题描述

我的工作中，我有我一直在使用一个绑定的的CheckBoxList asp.net项目

I am working on an asp.net project in which i have a checkboxlist which i have bound using

DataTable dt = new Process_Hotels().SelectAllFacilty();
if (dt.Rows.Count > 0)
{
    cblHotelFacility.DataSource = dt;
    cblHotelFacility.DataTextField = "Facility";
    cblHotelFacility.DataValueField = "ID";
    cblHotelFacility.DataBind();

    foreach (ListItem li in cblHotelFacility.Items)
    {
        li.Attributes.Add("JSvalue", li.Value);
    }
}

现在我想用按钮click.For的JavaScript的CheckBoxList选定值的ID我有以下按钮点击的javascript code：

and now i want to get selected value ID of checkboxlist using javascript on button click.For that i have following javascript code on button click:

<script type="text/javascript">

    function test() {
        var checkList1 = document.getElementById('<%= cblHotelFacility.ClientID %>');
        var checkBoxList1 = checkList1.getElementsByTagName("input");
        var checkBoxSelectedItems1 = new Array();

        for (var i = 0; i < checkBoxList1.length; i++) {
            if (checkBoxList1[i].checked) {
                checkBoxSelectedItems1.push(checkBoxList1[i].value);
                //alert('checked:' + checkBoxSelectedItems1.push(checkBoxList1[i].getAttribute("JSvalue")).value);
                alert('checked - : ' + checkBoxList1[i].value)
            }
        }
    }
</script>

但在点击按钮的选择的CheckBoxList正显示出0我想选择的CheckBoxList的ID items.Please帮助。

but the on clicking button the selected checkboxlist is showing 0. I want to get ID of selected checkboxlist items.Please help.

推荐答案

试试这个：

<script type = "text/javascript">

function GetCheckBoxListValues(chkBoxID)
{
    var chkBox = document.getElementById('<%= cblHotelFacility.ClientID %>');
    var options = chkBox.getElementsByTagName('input');
    var listOfSpans = chkBox.getElementsByTagName('span');
    for (var i = 0; i < options.length; i++)
    {
        if(options[i].checked)
        {
            alert(listOfSpans[i].attributes["JSvalue"].value);
        }
    }
}


</script>

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