Send variable from vb net to javascript

[Fabio Cirillo]

Hi,
i've a web page write with vbnet 2010, how do to send the value of a variable from vb net to javascript?
 
thanks bye

[Princy]

Hi,

One suggestion is that to make your server variable as Public Property and access it in java script as follows.

JS:

<script type="text/javascript">
    function OnClientClick() {
        var serverVariable = '<%= ServerVariable %>';
        alert(serverVariable);
    }
</script>

Hope this helps.

Regards,
Princy.

[Fabio Cirillo]

Not work, I blank, I did so

Public Property _image As String

Private Sub Imgbtnupload_Click(sender As Object, e As System.Web.UI.ImageClickEventArgs) Handles Imgbtnupload.Click

        _image = "/public/image_profile/" & RadUpload1.UploadedFiles.Item(0).FileName

End Sub

function Close_and_load() {
    var _image = '<%= _image %>';
    GetRadWindow().close(_image);
}

[rdmptn]

The server code block is evaluated with the rendering of the page. If you are using AJAX and you change the server variable this will not affect the script if it is not included in the AJAX request. What I'd suggest you do is to register a script from the code-behind and populate some global variable with the value you need (e.g. the ScriptManager.RegisterStartupScript() method). Or, simply use a hidden field.