Using JQuery with ASP.NET for slideToggle

I want to slideToggle a bulleted list in ASP.NET using jQuery when I click a button. The C# code behind will update the bulleted list by calling a web service and displaying the data.

Would I have to call the jQuery function from the C# code after the C# code has finished? Has anyone got an example to show?

Here is my code, which I will keep simple:

Page code:

<asp:BulletedList runat="server" id="resultsList">
</asp:BulletedList>
<asp:Button runat="server" Text="Search" id="searchBtn" 
onclick="searchBtn_Click" />

C# code behind for button:

resultsList.Item.Add( "New Item");
//do other stuff to list

jQuery code on page:

$("#searchBtn").click(function () {
        $("#resultsList").slideToggle('slow', function () {
            //do something
        });
});

Although it doesn't work. Is it because i'm not calling the jQuery开发者_如何学Python code from the C# code behind?

Try this solution

$("#searchBtn").click(function () {

  if(!$("#resultsList").data("listBound")){

  $.ajax({
    url: "urlWhichWillReturnListMarkUpOrJsonResult",
    succcess: function(response){
       //If the response is just the requried markup
       $("#resultsList").html(response).slideToggle('slow');
       //If the response is a json result then you have to write a logic to read the response and create the required markup for the list and append that markup to resultList container and then call slideToggle method.

       //Once the list is populated set at flag using data attributes so that next time when u click u dont have to make ajax call but just slideToggle it
      $("#resultsList").data("listBound", true);
    }
  });
}
else
{
    $("#resultsList").slideToggle('slow');
}
});

Add code below as the very last string of the searchBtn_Click method:

ClientScript.RegisterStartupScript(this.GetType(), "ToogleResultsList", string.Format("$('#{0}').slideToggle('slow', function () { alert('Foo!'); });", resultsList.ClientID), true);