Why isn't the combobox parameter submit?

[vennylv]

On the page concerned, copy, endDate to the value of copy - paste.
After you type, the date value is sent when it is submitted.

After, clear the form.

If the date value is entered and submit again,
No date values are transmitted.
StartDate, endDate parameter is null.

I wanna solution. pleaze

[jarry]

The example below built from your code. When enter a date on the datebox, the form can accept the data.
http://code.reloado.com/ayiwun3/edit#html,live

If your issue continues, please show a live example to demonstrate your issue.