HTML control does not exist in current context asp.net

Question

I'm building an web application. I have a Sample.aspx file which I have asp controllers, asp grid view and etc. I want to add to this design but when I add it I can't get it to the code behind.

eg: String val = date.value;

When I do this in the code behind it gives an error saying "date does no exist in current context".

I tried deleting designer.aspx, adding "runat = server" but still couldn't find a proper solution. Can some one please help me with this?

Edit:

This is my html controller where I add to the asp form. I need to get the date from user.

 <input type="date" id="date" runat="server" value=""/>

I use this on a jquery popup so if I use a asp:calendar, when a date is clicked jquery popup will be closed on the post back.

This is the asp back end code where I try to get the error saying....

Error 7 The name 'date' does not exist in the current context E:\IncidentManagement\WebUI\IncidentMain\IncidentMaster.aspx.cs 77 69 WebUI

incidentTXNMaster.IncidentDate = Convert.ToDateTime(date.value);

What is date? The error is indicating that it has no idea what the variable date is. — CodingYoshi
– CodingYoshi, Commented May 3, 2017 at 11:53

Peter Smith · Accepted Answer · 2017-05-03 11:52:23Z

0

The problem can be seen from the error message. date is being treated as a variable which has not been declared or initialised. Perhaps what you meant was

string val = DateTime.Now.ToString();

answered May 3, 2017 at 11:52

Peter Smith

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3 Comments

CodingYoshi Over a year ago

This should be question... Since you are not sure if that is what the OP wants

Peter Smith Over a year ago

The question is implied by "perhaps what you meant was"

CodingYoshi Over a year ago

Yes that's what I mean. You are asking a question.

Saif · Accepted Answer · 2017-05-04 12:20:44Z

0

doesn't exist in current context means that you are trying to use something that not initially declared.

so in your case, you are trying to use date but you have not declared it yet.

change this

<input type="date" id="date" runat="server" value=""/>

to

<input type="date" id="txtdate" name="date" runat="server" value=""/>

and then get value

string val = Request.Form["date"];

or using

string val = txtdate.Value;

edited May 4, 2017 at 12:20

answered May 3, 2017 at 15:28

Saif

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1 Comment

Chamathka Sooriyapala Over a year ago

It's not the solution for my problem. Thanks anyways :)

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