How to call JavaScript function when binding data to asp.Net Repeater

Question

I'm trying to call a javascript function when repeater binding from the code behind.

Here is the sample code that i'm tring to call javascript function:

<asp:Repeater ID="summeryR" runat="server">
  <ItemTemplate>
    <div class="question-head">
      <p><%# Eval("QuestionText") %></p>
    </div>
    <div class="question-respond">
      <p><%# Eval("Label", "checkSkipQuestion()") %></p>
    </div>
  </ItemTemplate>
</asp:Repeater>

here is the javascript function:

 function checkSkipQuestion()
 {
  alert("checkSkipQuestion");
 }

jwatts1980 · Accepted Answer · 2014-08-17 04:54:47Z

1

This can not be done.

The IIS server is processing the repeater and building an HTML table. This happens during compile time of the page. Once the page is compiled, and completed as HTML by the server, it is sent to the browser. At that point, any JavaScript can be run. In other words, you cannot call a JavaScript function while the repeater is building the table.

answered Aug 17, 2014 at 4:54

jwatts1980

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2 Comments

jwatts1980 Over a year ago

@Jay: I cannot tell from your code example what it is that you are trying to accomplish. So the above answer is all the advice I can give for the moment.

Jay Over a year ago

Thanks @jwatts1980 for your explanation. I found a solution instead of using javascript function, that I can call code-behind function when data binding. ex-<%# this.DataBinder(Eval("Label") as string) %> like this. This works for me :)

Manish · Accepted Answer · 2020-09-07 13:53:14Z

0

          <p><%# Eval("Label", "<script type=text/java-script> alert('Hi..') ; 
    </script>") %></p>

if it is not work then remove dash from type.

answered Sep 7, 2020 at 13:53

Manish

1

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