How to clear the filename and value of apex:inputFile












3














I have and apex:inputFile tag where a user can input a filename to upload on a visualforce page. I have a javascript function which checks and alerts if a filesize is too large. After the Alert the inputfield stays filled with the file. How do I clear the input in javascript.



Visualforce



<apex:inputFile id="inputfile" value="{!newAtt.body}" filename="{!newAtt.name}"  onchange="checkFileSize(event)" />


Javascript



    <script>
function checkFileSize(event) {
if(event.target.files[0].size > 2**20*5) {
alert('File must be less than 5Mb');
//**Clear input**
}
}
</script>









share|improve this question



























    3














    I have and apex:inputFile tag where a user can input a filename to upload on a visualforce page. I have a javascript function which checks and alerts if a filesize is too large. After the Alert the inputfield stays filled with the file. How do I clear the input in javascript.



    Visualforce



    <apex:inputFile id="inputfile" value="{!newAtt.body}" filename="{!newAtt.name}"  onchange="checkFileSize(event)" />


    Javascript



        <script>
    function checkFileSize(event) {
    if(event.target.files[0].size > 2**20*5) {
    alert('File must be less than 5Mb');
    //**Clear input**
    }
    }
    </script>









    share|improve this question

























      3












      3








      3







      I have and apex:inputFile tag where a user can input a filename to upload on a visualforce page. I have a javascript function which checks and alerts if a filesize is too large. After the Alert the inputfield stays filled with the file. How do I clear the input in javascript.



      Visualforce



      <apex:inputFile id="inputfile" value="{!newAtt.body}" filename="{!newAtt.name}"  onchange="checkFileSize(event)" />


      Javascript



          <script>
      function checkFileSize(event) {
      if(event.target.files[0].size > 2**20*5) {
      alert('File must be less than 5Mb');
      //**Clear input**
      }
      }
      </script>









      share|improve this question













      I have and apex:inputFile tag where a user can input a filename to upload on a visualforce page. I have a javascript function which checks and alerts if a filesize is too large. After the Alert the inputfield stays filled with the file. How do I clear the input in javascript.



      Visualforce



      <apex:inputFile id="inputfile" value="{!newAtt.body}" filename="{!newAtt.name}"  onchange="checkFileSize(event)" />


      Javascript



          <script>
      function checkFileSize(event) {
      if(event.target.files[0].size > 2**20*5) {
      alert('File must be less than 5Mb');
      //**Clear input**
      }
      }
      </script>






      visualforce javascript event inputfield






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked 1 hour ago









      Thomas

      657213




      657213






















          1 Answer
          1






          active

          oldest

          votes


















          3














          You can pass the element id in the checkFileSize method, and then do your processing then



          <apex:page controller="FileUploadController">

          <apex:inputFile id="inputfile" value="{!newAtt.body}" filename="{!newAtt.name}" onchange="checkFileSize(event,id)" />

          <script>
          function checkFileSize(event , id ) {
          if(event.target.files[0].size > 2**20*5) {
          alert('File must be less than 5Mb');
          //**Clear input**
          document.getElementById(id).value ='';
          }
          }
          </script>
          </apex:page>





          share|improve this answer























          • Thanks for your answer, how can I make this work if the apex:input is between an apex repeat. For now it only works for the first input. How do I get the event inputfile?
            – Thomas
            58 mins ago












          • @Thomas updated code to support apex:reperat7
            – Pranay Jaiswal
            53 mins ago










          • Thanks!!! This made ik work.
            – Thomas
            44 mins ago











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          1 Answer
          1






          active

          oldest

          votes








          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          3














          You can pass the element id in the checkFileSize method, and then do your processing then



          <apex:page controller="FileUploadController">

          <apex:inputFile id="inputfile" value="{!newAtt.body}" filename="{!newAtt.name}" onchange="checkFileSize(event,id)" />

          <script>
          function checkFileSize(event , id ) {
          if(event.target.files[0].size > 2**20*5) {
          alert('File must be less than 5Mb');
          //**Clear input**
          document.getElementById(id).value ='';
          }
          }
          </script>
          </apex:page>





          share|improve this answer























          • Thanks for your answer, how can I make this work if the apex:input is between an apex repeat. For now it only works for the first input. How do I get the event inputfile?
            – Thomas
            58 mins ago












          • @Thomas updated code to support apex:reperat7
            – Pranay Jaiswal
            53 mins ago










          • Thanks!!! This made ik work.
            – Thomas
            44 mins ago
















          3














          You can pass the element id in the checkFileSize method, and then do your processing then



          <apex:page controller="FileUploadController">

          <apex:inputFile id="inputfile" value="{!newAtt.body}" filename="{!newAtt.name}" onchange="checkFileSize(event,id)" />

          <script>
          function checkFileSize(event , id ) {
          if(event.target.files[0].size > 2**20*5) {
          alert('File must be less than 5Mb');
          //**Clear input**
          document.getElementById(id).value ='';
          }
          }
          </script>
          </apex:page>





          share|improve this answer























          • Thanks for your answer, how can I make this work if the apex:input is between an apex repeat. For now it only works for the first input. How do I get the event inputfile?
            – Thomas
            58 mins ago












          • @Thomas updated code to support apex:reperat7
            – Pranay Jaiswal
            53 mins ago










          • Thanks!!! This made ik work.
            – Thomas
            44 mins ago














          3












          3








          3






          You can pass the element id in the checkFileSize method, and then do your processing then



          <apex:page controller="FileUploadController">

          <apex:inputFile id="inputfile" value="{!newAtt.body}" filename="{!newAtt.name}" onchange="checkFileSize(event,id)" />

          <script>
          function checkFileSize(event , id ) {
          if(event.target.files[0].size > 2**20*5) {
          alert('File must be less than 5Mb');
          //**Clear input**
          document.getElementById(id).value ='';
          }
          }
          </script>
          </apex:page>





          share|improve this answer














          You can pass the element id in the checkFileSize method, and then do your processing then



          <apex:page controller="FileUploadController">

          <apex:inputFile id="inputfile" value="{!newAtt.body}" filename="{!newAtt.name}" onchange="checkFileSize(event,id)" />

          <script>
          function checkFileSize(event , id ) {
          if(event.target.files[0].size > 2**20*5) {
          alert('File must be less than 5Mb');
          //**Clear input**
          document.getElementById(id).value ='';
          }
          }
          </script>
          </apex:page>






          share|improve this answer














          share|improve this answer



          share|improve this answer








          edited 53 mins ago

























          answered 1 hour ago









          Pranay Jaiswal

          13.4k32351




          13.4k32351












          • Thanks for your answer, how can I make this work if the apex:input is between an apex repeat. For now it only works for the first input. How do I get the event inputfile?
            – Thomas
            58 mins ago












          • @Thomas updated code to support apex:reperat7
            – Pranay Jaiswal
            53 mins ago










          • Thanks!!! This made ik work.
            – Thomas
            44 mins ago


















          • Thanks for your answer, how can I make this work if the apex:input is between an apex repeat. For now it only works for the first input. How do I get the event inputfile?
            – Thomas
            58 mins ago












          • @Thomas updated code to support apex:reperat7
            – Pranay Jaiswal
            53 mins ago










          • Thanks!!! This made ik work.
            – Thomas
            44 mins ago
















          Thanks for your answer, how can I make this work if the apex:input is between an apex repeat. For now it only works for the first input. How do I get the event inputfile?
          – Thomas
          58 mins ago






          Thanks for your answer, how can I make this work if the apex:input is between an apex repeat. For now it only works for the first input. How do I get the event inputfile?
          – Thomas
          58 mins ago














          @Thomas updated code to support apex:reperat7
          – Pranay Jaiswal
          53 mins ago




          @Thomas updated code to support apex:reperat7
          – Pranay Jaiswal
          53 mins ago












          Thanks!!! This made ik work.
          – Thomas
          44 mins ago




          Thanks!!! This made ik work.
          – Thomas
          44 mins ago


















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