How to call c# method with parameter from Jquery? ASP.Net 2.0

Question

I show modal popup window in default.aspx page so:

<a id="popup" href="../Popup/Keywords.aspx">edit</a>

Jquery function:

$(document).ready(function () {
            $('a#popup').live('click', function (e) {

                var page = $(this).attr("href")

                var $dialog = $('<div></div>')
                .html('<iframe style="border: 0px; " src="' + page + '" width="100%" height="100%"></iframe>')
                .dialog({
                    autoOpen: false,
                    modal: true,
                    height: 450,
                    width: 'auto',
                    title: "Edit Employee",
                    buttons: {
                        "Close": function () { $dialog.dialog('close'); }
                                },
                    close: function (event, ui) {


                    __doPostBack('<%= grdReportKeywordsRefresh(report_id) %>', '');
                    }
                });
                $dialog.dialog('open');
                e.preventDefault();
            });
        });

How to call "grdReportKeywordsRefresh" method with parameter "report_id" right?

Why controls of Default.aspx page are not displayed in popup window?

report_id:

private String r_id;
public Int32 report_id
{
    get { return r_id != null ? Convert.ToInt32(r_id) : 0; }
    set { r_id = value; }
}

grdReportKeywordsRefresh method:

protected void grdReportKeywordsRefresh(int report_id)
{
    grdKeywords.DataSource = conn.GetKeywordsByRepId(report_id);
    grdKeywords.DataBind();
}

this calls function while you're rendering page. is it what you want? — Ales Ruzicka
– Ales Ruzicka, Commented Jul 13, 2011 at 10:01
can you post grdReportKeywordsRefresh method, or at least describe what it is supposed to do? first argument of __doPostBack is supposed to be ID of control of which action you want to run. this can be for example button or etc. alternatively you can just add some string and during page lifecycle (ie in page_load) check for this value (Page.Request("__EVENTTARGET")) and run your code based on that. does this help? — Ales Ruzicka
– Ales Ruzicka, Commented Jul 13, 2011 at 11:29
@Ales: this method refreshes GridView (I added it to question). Can you show me an example of your alternative solution? — DmitryB
– DmitryB, Commented Jul 13, 2011 at 12:06
@Ales: No, I'm not. I have VS2005 without AJAX Extensions :( — DmitryB
– DmitryB, Commented Jul 13, 2011 at 12:10

Ales Ruzicka · Accepted Answer · 2011-07-13 12:33:11Z

2

People are right, you're mixing stuff :)

It should go like this:

<script type="text/javascript">
this is what you call:
  __doPostBack('updateMyGrid', '')
</script>

in codebehind (using VB.NET, if you use C#, I'll change it)

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
  If Page.IsPostBack AndAlso Page.Request("__EVENTTARGET") = "updateMyGrid" Then
    'rebind your grid here
  End If
End Sub

c# (just frome head)

protected void Page_Load(object sender, EventArgs e) {
  if(IsPostBack && Page.Request["__EVENTTARGET"] == "updateMyGrid") {
    //rebind here
  }
}

edited Jul 13, 2011 at 12:33

answered Jul 13, 2011 at 12:15

Ales Ruzicka

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4 Comments

rtpHarry Over a year ago

op does appear to be using c# in their sample

DmitryB Over a year ago

Ales, thanks for help, but Page.Request.Params.Get("__EVENTTARGET") (maybe only in c#). And can you say why the .aspx page isn't shown in popup window?

Ales Ruzicka Over a year ago

is there some javascript error? i would try to use some html inspector (ie chrome inspector or FireBug) to find reason

DmitryB Over a year ago

yes, I made a stupid mistake, again thanks a lot for your help!

Simon Halsey · Accepted Answer · 2011-07-13 10:07:41Z

2

You're mixing client and server code.

You're also loading another page altogether into your pop-up, so it's not surprising it's not showing anything from default.aspx.

You could set a value in a hidden field when you close the pop-up, then force the postback & on the server, check if the hidden field value is set and call the function if it is.

Simon

answered Jul 13, 2011 at 10:07

Simon Halsey

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Comments

musefan · Accepted Answer · 2011-07-13 10:08:43Z

1

Where is report_id defined? You cannot use variables that are set in javascript because server side code (<%= %>) gets executed when the page is rendered by the server.

answered Jul 13, 2011 at 10:08

musefan

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3 Comments

DmitryB Over a year ago

report_id is page's class property

musefan Over a year ago

Can I see how it is declared?

DmitryB Over a year ago

I added it to the end of the question

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