how to count the number of characters in a text box

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  14 years ago

  by Vinay08

  Vinay Sobha

  Port-Louis, Mauritius

  Joined 14 years ago

  Hi friends,

  Sorry to bother you again, I need to put a text box and have the character count and displayed on another text box as the user is inputing the words in the text box.I'm using VB.Net for coding my project.

  For example                                   text box1 to have the count()

   

  Large text box2 where all input will be made and the characher input has to increment in text box 1.

  Hope that someone can help me.

  Thanks.

   

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• • Reply

  14 years ago

  by udai

  Udai Krishnan K

  Bangalore, India

  Joined 14 years ago

  Hi Vinay,

  In the larger text box HTML code give onkeydown = "sampleLength()"
  ie: <asp:TextBox runat="server" id="TextBox2" onkeydown = "sampleLength()"></asp:TextBox>
  
  
  

  Then define a javascript function as given below:
  <script language= javascript>
  function sampleLength()
  {
  document.Form1.TextBox1.value = document.Form1.TextBox2.value.length+1;
  }
   </script>
  
  This will give you the count. You can refine on this for handling back spaces and deletes.
  Now it will give you the count on the other text box when a value is entered.
  
  
  
  
  
  
  
  
  
  
  

  Regards
    Udai K
  
  
  
  
  

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