Apex:inputfile style

Question

Im trying to give the 'choose file' button the lightning style,I tried to set the header on True,but its not working with that component. Is there any other way to do it?

<apex:form id="theForm">

  <apex:pageBlock >

      <apex:pageBlockSection >

        <apex:inputFile value="{!document.body}" filename="{!document.name}" styleClass="slds-file-selector__button"  / >

        <apex:commandButton value="Save" action="{!save}"/>

      </apex:pageBlockSection>



   </apex:pageBlock>

</apex:form>

Answer 1

You will have to import SLDS stylesheets to your visualforce page.

To add SLDS to your page, add the <apex:slds/> tag anywhere on your page. The <apex:slds/> tag imports SLDS stylesheets so you don’t have to do it yourself.

Also, there is more that needs to be done in order to give inputFile a lightning button look.

Below visualforce page should do the trick

<apex:page >
   <apex:form id="theForm">
      <apex:slds />
      <apex:pageBlock >
         <apex:pageBlockSection >
            <div class="slds-form-element">
               <span class="slds-form-element__label" id="file-selector-id">Attachment</span>
               <div class="slds-form-element__control">
                  <div class="slds-file-selector slds-file-selector_files">
                     <div class="slds-file-selector__dropzone">
                        <apex:inputFile styleClass="slds-file-selector__input slds-assistive-text" accept="image/png" id="fileUploadInput01" value="foo" />
                        <apex:outputLabel styleClass="slds-file-selector__body" for="fileUploadInput01">
                           <span class="slds-file-selector__button slds-button slds-button_neutral">
                              <svg class="slds-button__icon slds-button__icon_left" aria-hidden="true">
                                 <use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="/assets/icons/utility-sprite/svg/symbols.svg#upload"></use>
                              </svg>
                              Upload Files
                           </span>
                           <span class="slds-file-selector__text slds-medium-show">or Drop Files</span>
                        </apex:outputLabel>
                     </div>
                  </div>
               </div>
            </div>
            <apex:commandButton value="Save" action="{!save}"/>
         </apex:pageBlockSection>
      </apex:pageBlock>
   </apex:form>
</apex:page>

You can get further help on this topic at this link