How can I clear the form ?

Question

Hi
I have two input_text field in the form.
<h:input_text id="productid" value="#{productBean.productId" required="true">
</h:input_text>
<h:input_text id="productName" value="#{productBean.productName" required="true">
</h:input_text>
<h:command_button id="search" action="search" value="Search" actionListener="#{productBean.searchDatabase}" type="submit" />
<h:command_button id="clear" action="clear" value="Clear" actionListener="#{productBean.resetResult} " type="submit" />
I don't want clear button to validate the required field. If I change type="reset" then it just reset the form to old values. I need to clear the search results stored in productBean.
Is there any way to invoke the action event with reset button?
Thanks

Answer 1

Hi
I have two input_text field in the form.
<h:input_text id="productid"
value="#{productBean.productId" required="true">
</h:input_text>
<h:input_text id="productName"
value="#{productBean.productName" required="true">
</h:input_text>
<h:command_button id="search" action="search"
value="Search"
actionListener="#{productBean.searchDatabase}"
type="submit" />
<h:command_button id="clear" action="clear"
value="Clear"
actionListener="#{productBean.resetResult} "
type="submit" />
I don't want clear button to validate the required
field. If I change type="reset" then it just reset the
form to old values. I need to clear the search results
stored in productBean.
Is there any way to invoke the action event with reset
button?
Thanks
Leave your "clear" button as type="submit", but add the attribute immediate="true" to it, along with an action expression that points at a method in your backing bean (maybe something like action="#{productBean.clear}") that is implemented like this:
  public Strng clear() {
    setProductId("");
    setProductName("");
    return (null); // Redisplay current page
  }Because of immediate="true", this action will be invoked immediately (that is, in Apply Request Values phase), after which JavaServer Faces will call Render Response phase to redisplay the current page. This bypasses things like validations and the normal search that your "search" button would do.
The same general approach works for "cancel" buttons as well.
Craig McClanahan