Write asp.net tag in javascript block

Question

This is my code :

$(document).ready(function () {
var url = '<%: Url.Content("~/") %>' + "Home/Gallery";
$.getJSON(url, function (newProduct) {
    var contentNewProduct = $("ul.ei-slider-large");
    var smallNewProduct = $("ul.ei-slider-thumbs");
    $.each(newProduct.ja, function (index, data) {
        contentNewProduct.append('<li><img src="' + '<%:Web.HelperClasses.HelperClass.CheckImageUrlExist("' + data.PictureName10 + '")%>' + '" alt="image" /><div class="ei-title"><span class="productName">' + data.Name + '</span><span class="productPrice">' + data.Price + '</span><span class="productSpec"><br /><br />"' + '<%:Web.HelperClasses.HelperClass.TrimString(' + data.Notes + ',2)%>' + '"</span><span><a href="#" class="readmore">Read more...</a></span>' + '</div></li>');
    });
});
});

The error block '<%:Web.HelperClasses.HelperClass.TrimString(' + data.Notes + ',2)%>', the error is Too many characters in character literal.

This is the form of function : TrimString(string s,int total) .

I tried to change to '<%:Web.HelperClasses.HelperClass.TrimString("' + data.Notes + '",2)%>' , but it still didn't work.

This is the c# TrimString function :

public static string TrimString(string str, int lenght)
{
string _str = str;
int _iAdditionalLenght = 0;
for (int i = lenght; i < str.Length; i++)
{
    if (_str.Substring(i, 1) == " ")
        break;
    _iAdditionalLenght++;
}
return str.Substring(0, str.Length < (lenght + _iAdditionalLenght) ? str.Length : (lenght + _iAdditionalLenght));
 }

This is what I tried in javascript,but it didn't work :

function TrimString(str, lengthStr) { 
  var _str = str;
  var _iAdditionalLenght = 0;
  for (var i = lengthStr; i < str.length; i++)
  {
      if (_str.substring(i, 1) == " ")
        break;  
      _iAdditionalLenght++;
  }

  return str.substring(0, str.length < (lengthStr + _iAdditionalLenght) ? str.length : (lengthStr + _iAdditionalLenght));
 }

Could any one tell me how can I write this function of TrimString in my block of javascript?

Thanks you so much.

var url = <%:= Url.Content("~/") %> + "Home/Gallery";

Sender
– Sender

2012-09-26 13:25:44 +00:00
Commented Sep 26, 2012 at 13:25 — Sender
– Sender, Commented Sep 26, 2012 at 13:25

Andrew Barber · Accepted Answer · 2012-10-02 10:04:32Z

2

If I guess right what your doing, you just can't. js is executed in client side, while aspnet is executed in server side. You can't create aspnet tags using js, because they need to be compiled and executed in server side.

If you just need a trim function, why not use jquery's built in trim function?

http://api.jquery.com/jQuery.trim/

edited Oct 2, 2012 at 10:04

Andrew Barber

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answered Sep 26, 2012 at 13:22

Oscar

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3 Comments

Nothing Over a year ago

Thanks Oscar, But in my TrimString function, I also include my own custom script. I added the block of the function to my question.

Oscar Over a year ago

Well, you'll have to implement it in js if you want to use it in client side.

Nothing Over a year ago

I did it in js ready Oscar, but the result didn't right like I did in C#.

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