saving value selected in a list when submit button is clicked
In my JSP I have a dropdownlist and a submit button when clic开发者_开发技巧king the submit button I lose the value already selected in my list. I am using the jstl because i need to construct other table corresponding the value selected in my list.For that I must call a submit button but the problem; it reset the value selected
I want to know if there is a way to save the value selected in my list even I click a submit button. I work with JSP and eclipse environment.
Thank you for your help.You need to preset the inputs with the request parameter values. You can access parameter values in EL by ${param.name}
. In case of dropdowns rendered by HTML <select>
element, you need to set the selected
attribute of the HTML <option>
element in question. You can make use of the ternary operator in EL to print the selected
attribute whenever the option value matches the request parameter value.
Basic example:
<select name="foo">
<c:forEach items="${options}" var="option">
<option ${param.foo == option ? 'selected' : ''}>${option}</option>
</c:forEach>
</select>
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