Display Expected Time by combination of two dropdowns i.e. time and duration

I am new to Javascript and need your help. I have two dropdowns time and duration and by the combination of these I need to display calculated time in javascript.

Suppose I select 11:00 AM from ddlValidityFrom and 3.00 from ddlValidityTo so the lblExpectedOutTime should display 2:00 PM.

Please help!

<label id="lblValidityFrom">Enter Validity Period From<span class="RedFieldsANR">*</span></label>

<asp:DropDownList ID="ddlValidityFrom" runat="server" CssClass="inputDDLTime">

    <asp:ListItem Value="0" Text="Select Time"></asp:ListItem>

    <asp:ListItem Text="06:00 AM"></asp:ListItem>

    <asp:ListItem Text="06:30 AM"></asp:ListItem>

    <asp:ListItem Text="07:00 AM"></asp:ListItem>

    <asp:ListItem Text="07:30 AM"></asp:ListItem>

    <asp:ListItem Text="08:00 AM"></asp:ListItem>

    <asp:ListItem Text="08:30 AM"></asp:ListItem>

    <asp:ListItem Text="09:00 AM"></asp:ListItem>

    <asp:ListItem Text="09:30 AM"></asp:ListItem>

    <asp:ListItem Text="10:00 AM"></asp:ListItem>

    <asp:ListItem Text="10:30 AM"></asp:ListItem>

    <asp:ListItem Text="11:00 AM"></asp:ListItem>

    <asp:ListItem Text="11:30 AM"></asp:ListItem>

    <asp:ListItem Text="12:00 PM"></asp:ListItem>

    <asp:ListItem Text="12:30 PM"></asp:ListItem>

    <asp:ListItem Text="01:00 PM"></asp:ListItem>

    <asp:ListItem Text="01:30 PM"></asp:ListItem>

    <asp:ListItem Text="02:00 PM"></asp:ListItem>

    <asp:ListItem Text="02:30 PM"></asp:ListItem>

    <asp:ListItem Text="03:00 PM"></asp:ListItem>

    <asp:ListItem Text="03:30 PM"></asp:ListItem>

    <asp:ListItem Text="04:00 PM"></asp:ListItem>

    <asp:ListItem Text="04:30 PM"></asp:ListItem>

    <asp:ListItem Text="05:00 PM"></asp:ListItem>

    <asp:ListItem Text="05:30 PM"></asp:ListItem>

    <asp:ListItem Text="06:00 PM"></asp:ListItem>

</asp:DropDownList>



<span id="lblValidityTo" class="spBox fl">Validity Period</span>

<asp:DropDownList ID="ddlValidityTo" runat="server" CssClass="inputDDLTimeHrs" onchange="calculateExpectedHours()">



    <asp:ListItem Text="0.30"></asp:ListItem>

    <asp:ListItem Text="1.00"></asp:ListItem>

    <asp:ListItem Text="1.30"></asp:ListItem>

    <asp:ListItem Text="2.00" Selected="True"></asp:ListItem>

    <asp:ListItem Text="2.30"></asp:ListItem>

    <asp:ListItem Text="3.00"></asp:ListItem>

    <asp:ListItem Text="3.30"></asp:ListItem>

    <asp:ListItem Text="4.00"></asp:ListItem>

    <asp:ListItem Text="4.30"></asp:ListItem>

    <asp:ListItem Text="5.00"></asp:ListItem>

    <asp:ListItem Text="5.30"></asp:ListItem>

    <asp:ListItem Text="6.00"></asp:ListItem>

    <asp:ListItem Text="6.30"></asp:ListItem>

    <asp:ListItem Text="7.00"></asp:ListItem>

    <asp:ListItem Text="7.30"></asp:ListItem>

    <asp:ListItem Text="8.00"></asp:ListItem>

    <asp:ListItem Text="8.30"></asp:ListItem>

    <asp:ListItem Text="9.00"></asp:ListItem>

</asp:DropDownList>

<span id="lblHrs" class="sp_Box fl">Hrs.</span>

<asp:RequiredFieldValidator ID="rfvValidityFrom" EnableClientScript="true" runat="server" ControlToValidate="ddlValidityFrom" InitialValue="0"

    ErrorMessage="Required" ValidationGroup="valSponsoredVisitor" CssClass="RedReqFieldsValidityFrom"></asp:RequiredFieldValidator>

</p>

<p>

<label id="lblExpectedOutTimeText">Expected Out Time</label>

<label id="lblExpectedOutTime"></label>

</p>

edited Nov 23 '18 at 7:32

Gaurav

12110

asked Nov 23 '18 at 6:25

user10694121

add a comment |

I am new to Javascript and need your help. I have two dropdowns time and duration and by the combination of these I need to display calculated time in javascript.

Suppose I select 11:00 AM from ddlValidityFrom and 3.00 from ddlValidityTo so the lblExpectedOutTime should display 2:00 PM.

Please help!

<label id="lblValidityFrom">Enter Validity Period From<span class="RedFieldsANR">*</span></label>

<asp:DropDownList ID="ddlValidityFrom" runat="server" CssClass="inputDDLTime">

    <asp:ListItem Value="0" Text="Select Time"></asp:ListItem>

    <asp:ListItem Text="06:00 AM"></asp:ListItem>

    <asp:ListItem Text="06:30 AM"></asp:ListItem>

    <asp:ListItem Text="07:00 AM"></asp:ListItem>

    <asp:ListItem Text="07:30 AM"></asp:ListItem>

    <asp:ListItem Text="08:00 AM"></asp:ListItem>

    <asp:ListItem Text="08:30 AM"></asp:ListItem>

    <asp:ListItem Text="09:00 AM"></asp:ListItem>

    <asp:ListItem Text="09:30 AM"></asp:ListItem>

    <asp:ListItem Text="10:00 AM"></asp:ListItem>

    <asp:ListItem Text="10:30 AM"></asp:ListItem>

    <asp:ListItem Text="11:00 AM"></asp:ListItem>

    <asp:ListItem Text="11:30 AM"></asp:ListItem>

    <asp:ListItem Text="12:00 PM"></asp:ListItem>

    <asp:ListItem Text="12:30 PM"></asp:ListItem>

    <asp:ListItem Text="01:00 PM"></asp:ListItem>

    <asp:ListItem Text="01:30 PM"></asp:ListItem>

    <asp:ListItem Text="02:00 PM"></asp:ListItem>

    <asp:ListItem Text="02:30 PM"></asp:ListItem>

    <asp:ListItem Text="03:00 PM"></asp:ListItem>

    <asp:ListItem Text="03:30 PM"></asp:ListItem>

    <asp:ListItem Text="04:00 PM"></asp:ListItem>

    <asp:ListItem Text="04:30 PM"></asp:ListItem>

    <asp:ListItem Text="05:00 PM"></asp:ListItem>

    <asp:ListItem Text="05:30 PM"></asp:ListItem>

    <asp:ListItem Text="06:00 PM"></asp:ListItem>

</asp:DropDownList>



<span id="lblValidityTo" class="spBox fl">Validity Period</span>

<asp:DropDownList ID="ddlValidityTo" runat="server" CssClass="inputDDLTimeHrs" onchange="calculateExpectedHours()">



    <asp:ListItem Text="0.30"></asp:ListItem>

    <asp:ListItem Text="1.00"></asp:ListItem>

    <asp:ListItem Text="1.30"></asp:ListItem>

    <asp:ListItem Text="2.00" Selected="True"></asp:ListItem>

    <asp:ListItem Text="2.30"></asp:ListItem>

    <asp:ListItem Text="3.00"></asp:ListItem>

    <asp:ListItem Text="3.30"></asp:ListItem>

    <asp:ListItem Text="4.00"></asp:ListItem>

    <asp:ListItem Text="4.30"></asp:ListItem>

    <asp:ListItem Text="5.00"></asp:ListItem>

    <asp:ListItem Text="5.30"></asp:ListItem>

    <asp:ListItem Text="6.00"></asp:ListItem>

    <asp:ListItem Text="6.30"></asp:ListItem>

    <asp:ListItem Text="7.00"></asp:ListItem>

    <asp:ListItem Text="7.30"></asp:ListItem>

    <asp:ListItem Text="8.00"></asp:ListItem>

    <asp:ListItem Text="8.30"></asp:ListItem>

    <asp:ListItem Text="9.00"></asp:ListItem>

</asp:DropDownList>

<span id="lblHrs" class="sp_Box fl">Hrs.</span>

<asp:RequiredFieldValidator ID="rfvValidityFrom" EnableClientScript="true" runat="server" ControlToValidate="ddlValidityFrom" InitialValue="0"

    ErrorMessage="Required" ValidationGroup="valSponsoredVisitor" CssClass="RedReqFieldsValidityFrom"></asp:RequiredFieldValidator>

</p>

<p>

<label id="lblExpectedOutTimeText">Expected Out Time</label>

<label id="lblExpectedOutTime"></label>

</p>

edited Nov 23 '18 at 7:32

Gaurav

12110

asked Nov 23 '18 at 6:25

user10694121

add a comment |

I am new to Javascript and need your help. I have two dropdowns time and duration and by the combination of these I need to display calculated time in javascript.

Suppose I select 11:00 AM from ddlValidityFrom and 3.00 from ddlValidityTo so the lblExpectedOutTime should display 2:00 PM.

Please help!

<label id="lblValidityFrom">Enter Validity Period From<span class="RedFieldsANR">*</span></label>

<asp:DropDownList ID="ddlValidityFrom" runat="server" CssClass="inputDDLTime">

    <asp:ListItem Value="0" Text="Select Time"></asp:ListItem>

    <asp:ListItem Text="06:00 AM"></asp:ListItem>

    <asp:ListItem Text="06:30 AM"></asp:ListItem>

    <asp:ListItem Text="07:00 AM"></asp:ListItem>

    <asp:ListItem Text="07:30 AM"></asp:ListItem>

    <asp:ListItem Text="08:00 AM"></asp:ListItem>

    <asp:ListItem Text="08:30 AM"></asp:ListItem>

    <asp:ListItem Text="09:00 AM"></asp:ListItem>

    <asp:ListItem Text="09:30 AM"></asp:ListItem>

    <asp:ListItem Text="10:00 AM"></asp:ListItem>

    <asp:ListItem Text="10:30 AM"></asp:ListItem>

    <asp:ListItem Text="11:00 AM"></asp:ListItem>

    <asp:ListItem Text="11:30 AM"></asp:ListItem>

    <asp:ListItem Text="12:00 PM"></asp:ListItem>

    <asp:ListItem Text="12:30 PM"></asp:ListItem>

    <asp:ListItem Text="01:00 PM"></asp:ListItem>

    <asp:ListItem Text="01:30 PM"></asp:ListItem>

    <asp:ListItem Text="02:00 PM"></asp:ListItem>

    <asp:ListItem Text="02:30 PM"></asp:ListItem>

    <asp:ListItem Text="03:00 PM"></asp:ListItem>

    <asp:ListItem Text="03:30 PM"></asp:ListItem>

    <asp:ListItem Text="04:00 PM"></asp:ListItem>

    <asp:ListItem Text="04:30 PM"></asp:ListItem>

    <asp:ListItem Text="05:00 PM"></asp:ListItem>

    <asp:ListItem Text="05:30 PM"></asp:ListItem>

    <asp:ListItem Text="06:00 PM"></asp:ListItem>

</asp:DropDownList>



<span id="lblValidityTo" class="spBox fl">Validity Period</span>

<asp:DropDownList ID="ddlValidityTo" runat="server" CssClass="inputDDLTimeHrs" onchange="calculateExpectedHours()">



    <asp:ListItem Text="0.30"></asp:ListItem>

    <asp:ListItem Text="1.00"></asp:ListItem>

    <asp:ListItem Text="1.30"></asp:ListItem>

    <asp:ListItem Text="2.00" Selected="True"></asp:ListItem>

    <asp:ListItem Text="2.30"></asp:ListItem>

    <asp:ListItem Text="3.00"></asp:ListItem>

    <asp:ListItem Text="3.30"></asp:ListItem>

    <asp:ListItem Text="4.00"></asp:ListItem>

    <asp:ListItem Text="4.30"></asp:ListItem>

    <asp:ListItem Text="5.00"></asp:ListItem>

    <asp:ListItem Text="5.30"></asp:ListItem>

    <asp:ListItem Text="6.00"></asp:ListItem>

    <asp:ListItem Text="6.30"></asp:ListItem>

    <asp:ListItem Text="7.00"></asp:ListItem>

    <asp:ListItem Text="7.30"></asp:ListItem>

    <asp:ListItem Text="8.00"></asp:ListItem>

    <asp:ListItem Text="8.30"></asp:ListItem>

    <asp:ListItem Text="9.00"></asp:ListItem>

</asp:DropDownList>

<span id="lblHrs" class="sp_Box fl">Hrs.</span>

<asp:RequiredFieldValidator ID="rfvValidityFrom" EnableClientScript="true" runat="server" ControlToValidate="ddlValidityFrom" InitialValue="0"

    ErrorMessage="Required" ValidationGroup="valSponsoredVisitor" CssClass="RedReqFieldsValidityFrom"></asp:RequiredFieldValidator>

</p>

<p>

<label id="lblExpectedOutTimeText">Expected Out Time</label>

<label id="lblExpectedOutTime"></label>

</p>

edited Nov 23 '18 at 7:32

Gaurav

12110

asked Nov 23 '18 at 6:25

user10694121

I am new to Javascript and need your help. I have two dropdowns time and duration and by the combination of these I need to display calculated time in javascript.

Suppose I select 11:00 AM from ddlValidityFrom and 3.00 from ddlValidityTo so the lblExpectedOutTime should display 2:00 PM.

Please help!

<label id="lblValidityFrom">Enter Validity Period From<span class="RedFieldsANR">*</span></label>

<asp:DropDownList ID="ddlValidityFrom" runat="server" CssClass="inputDDLTime">

    <asp:ListItem Value="0" Text="Select Time"></asp:ListItem>

    <asp:ListItem Text="06:00 AM"></asp:ListItem>

    <asp:ListItem Text="06:30 AM"></asp:ListItem>

    <asp:ListItem Text="07:00 AM"></asp:ListItem>

    <asp:ListItem Text="07:30 AM"></asp:ListItem>

    <asp:ListItem Text="08:00 AM"></asp:ListItem>

    <asp:ListItem Text="08:30 AM"></asp:ListItem>

    <asp:ListItem Text="09:00 AM"></asp:ListItem>

    <asp:ListItem Text="09:30 AM"></asp:ListItem>

    <asp:ListItem Text="10:00 AM"></asp:ListItem>

    <asp:ListItem Text="10:30 AM"></asp:ListItem>

    <asp:ListItem Text="11:00 AM"></asp:ListItem>

    <asp:ListItem Text="11:30 AM"></asp:ListItem>

    <asp:ListItem Text="12:00 PM"></asp:ListItem>

    <asp:ListItem Text="12:30 PM"></asp:ListItem>

    <asp:ListItem Text="01:00 PM"></asp:ListItem>

    <asp:ListItem Text="01:30 PM"></asp:ListItem>

    <asp:ListItem Text="02:00 PM"></asp:ListItem>

    <asp:ListItem Text="02:30 PM"></asp:ListItem>

    <asp:ListItem Text="03:00 PM"></asp:ListItem>

    <asp:ListItem Text="03:30 PM"></asp:ListItem>

    <asp:ListItem Text="04:00 PM"></asp:ListItem>

    <asp:ListItem Text="04:30 PM"></asp:ListItem>

    <asp:ListItem Text="05:00 PM"></asp:ListItem>

    <asp:ListItem Text="05:30 PM"></asp:ListItem>

    <asp:ListItem Text="06:00 PM"></asp:ListItem>

</asp:DropDownList>



<span id="lblValidityTo" class="spBox fl">Validity Period</span>

<asp:DropDownList ID="ddlValidityTo" runat="server" CssClass="inputDDLTimeHrs" onchange="calculateExpectedHours()">



    <asp:ListItem Text="0.30"></asp:ListItem>

    <asp:ListItem Text="1.00"></asp:ListItem>

    <asp:ListItem Text="1.30"></asp:ListItem>

    <asp:ListItem Text="2.00" Selected="True"></asp:ListItem>

    <asp:ListItem Text="2.30"></asp:ListItem>

    <asp:ListItem Text="3.00"></asp:ListItem>

    <asp:ListItem Text="3.30"></asp:ListItem>

    <asp:ListItem Text="4.00"></asp:ListItem>

    <asp:ListItem Text="4.30"></asp:ListItem>

    <asp:ListItem Text="5.00"></asp:ListItem>

    <asp:ListItem Text="5.30"></asp:ListItem>

    <asp:ListItem Text="6.00"></asp:ListItem>

    <asp:ListItem Text="6.30"></asp:ListItem>

    <asp:ListItem Text="7.00"></asp:ListItem>

    <asp:ListItem Text="7.30"></asp:ListItem>

    <asp:ListItem Text="8.00"></asp:ListItem>

    <asp:ListItem Text="8.30"></asp:ListItem>

    <asp:ListItem Text="9.00"></asp:ListItem>

</asp:DropDownList>

<span id="lblHrs" class="sp_Box fl">Hrs.</span>

<asp:RequiredFieldValidator ID="rfvValidityFrom" EnableClientScript="true" runat="server" ControlToValidate="ddlValidityFrom" InitialValue="0"

    ErrorMessage="Required" ValidationGroup="valSponsoredVisitor" CssClass="RedReqFieldsValidityFrom"></asp:RequiredFieldValidator>

</p>

<p>

<label id="lblExpectedOutTimeText">Expected Out Time</label>

<label id="lblExpectedOutTime"></label>

</p>

javascript asp.net

edited Nov 23 '18 at 7:32

Gaurav

12110

asked Nov 23 '18 at 6:25

user10694121

edited Nov 23 '18 at 7:32

Gaurav

12110

asked Nov 23 '18 at 6:25

user10694121

edited Nov 23 '18 at 7:32

Gaurav

12110

edited Nov 23 '18 at 7:32

Gaurav

12110

edited Nov 23 '18 at 7:32

Gaurav

12110

asked Nov 23 '18 at 6:25

user10694121

asked Nov 23 '18 at 6:25

user10694121

asked Nov 23 '18 at 6:25

user10694121

add a comment |

0

active

oldest

votes

Your Answer

StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");

StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});

function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});

}
});

draft saved

draft discarded

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Post as a guest

Name

Required, but never shown

StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53441557%2fdisplay-expected-time-by-combination-of-two-dropdowns-i-e-time-and-duration%23new-answer', 'question_page');
}
);

Post as a guest

Name

Required, but never shown

0

active

oldest

votes

0

active

oldest

votes

draft saved

draft discarded

Thanks for contributing an answer to Stack Overflow!

Please be sure to answer the question. Provide details and share your research!

But avoid …

Asking for help, clarification, or responding to other answers.

Making statements based on opinion; back them up with references or personal experience.

To learn more, see our tips on writing great answers.

Some of your past answers have not been well-received, and you're in danger of being blocked from answering.

Please pay close attention to the following guidance:

Please be sure to answer the question. Provide details and share your research!

But avoid …

Asking for help, clarification, or responding to other answers.

Making statements based on opinion; back them up with references or personal experience.

To learn more, see our tips on writing great answers.

draft saved

draft discarded

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Post as a guest

Name

Required, but never shown

Post as a guest

Name

Required, but never shown

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Post as a guest

Name

Required, but never shown

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Post as a guest

Name

Required, but never shown

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Post as a guest

Name

Required, but never shown

Name

Required, but never shown

Name

Required, but never shown

This page is only for reference, If you need detailed information, please check here

搜尋此網誌

Qfyilyi