Reading JQuery.ajax URL call data in VB .Net Code behind

Question

I wish to read the value of a text box in a .aspx page and save it every so many seconds.

I have found the following code at: How to implement an "Auto Save" or "Save Draft" feature in ASP.NET?

I modified it for my purposes a little bit:

<script type="text/javascript" src="http://code.jquery.com/jquery-1.4.2.min.js"></script>

<script type="text/javascript">
    $(document).ready(function() {
        window.setInterval(saveDraft, 5000);
    });        
    function saveDraft() {
        $.ajax({
            type: "POST",
            url: "SaveDraft.aspx",
            data: ({
            draftData: $("#<%=dataTextBox.ClientID %>").val()                    
            }),
            success: function(response) {
                alert('saved draft');
            }
        });
    }
</script>

Let's say dataTextBox is a textbox defined in the .aspx page. I have the code behind in VB .Net . But I do not know how I can get the value of the text box text field in the code behind. I suppose I am passing it through the line

draftData: $("#<%=dataTextBox.ClientID %>").val()

to SaveDraft.aspx.

In SaveDraft.aspx.vb I have:

Public Partial Class SaveDraft
Inherits System.Web.UI.Page

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

    ' What should go here to read dataTextBox.text?
End Sub

End Class

Ben Emery · Accepted Answer · 2012-11-08 11:20:57Z

1

You'll need to call a pagemethod from the jQuery, passing the data along with it.

A good example of this can be found here:

http://trentgardner.net/net/asp-net-webmethods-with-jquery-and-ajax/

answered Nov 8, 2012 at 11:20

Ben Emery

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Comments

Dogahe · Accepted Answer · 2012-11-28 15:59:53Z

0

I was able to read the value of dataTextBox by the following line of code in Page_Load

 Dim testStr As String = Request.Form("draftData")

answered Nov 28, 2012 at 15:59

Dogahe

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