[英]How to get value from checkbox in javascript for check value is True or False?
我想从javascript的复选框中获取值,检查值是True还是False,如果“ False”我想显示弹出窗口确认“是/否?”。
JavaScript的
function Confirm() {
var confirm_value = document.createElement("INPUT");
confirm_value.type = "hidden";
confirm_value.name = "confirm_value";
var isChecked = $('#chkSome').is(':checked');
if (isChecked) {
}
else {
if (confirm("Yes/No?")) {
confirm_value.value = "Yes";
} else {
confirm_value.value = "No";
}
document.forms[0].appendChild(confirm_value); ;
}
}
C#(GridView中的TemplateField)
<asp:TemplateField HeaderText="Some Pcs">
<ItemTemplate>
<asp:CheckBox runat="server" ID="chkSome" Width="20px" AutoPostBack="true" onclick="Confirm();" OnCheckedChanged="chkSome_OnCheckedChanged" />
<asp:Label runat="server" ID="lblQty" Style=" padding-right:2px;" Width="48px" Text='<%# Bind("Quantity") %>'></asp:Label>
<asp:Label runat="server" ID="lblCSQty" Text='<%# Bind("CSQty") %>' Visible="false"></asp:Label>
</ItemTemplate>
</asp:TemplateField>
C#(支票更改后的代码)
protected void chkSome_OnCheckedChanged(object sender, EventArgs e)
{
CheckBox chk = sender as CheckBox;
GridViewRow rowindex = chk.NamingContainer as GridViewRow;
CheckBox chkSome = (CheckBox)GridView3.Rows[rowindex.RowIndex].FindControl("chkSome");
if (chkSome.Checked)
{
//do something
}
else
{
confirmValue = Request.Form["confirm_value"];
if (confirmValue == "Yes")
{
//do something
}
}
}
try this .
$('#chkSome').click(function(){
var checked = $(this).is(':checked');
if(checked) {
if(!confirm('Are you sure ?')){
$(this).removeAttr('checked');
}
} else if(!confirm('Are you sure ?')){
$(this).attr("checked", "checked");
}
});
以下是JSFiddle的工作示例
如果javascript可以尝试chkSome.checked
像这样
var chkSome = document.getElementById('chkSome'); var result = document.getElementById('result'); function testCheck() { if(chkSome.checked){ result.innerHTML = "checked!"; }else{ result.innerHTML = "unchecked!"; } }
<input id="chkSome" type="checkbox" onclick="testCheck()"> <div id="result">↑click here</div>
希望帮助
您可以尝试使用此代码,它对我来说就像是一种魅力。 它将返回一个true
或false
值
$("input[title=chkSome]").is(":checked")
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