Passing a variable from server side to javascript

Question

I can't pass the server side variable to my javascript.

In my control

<input type="button" id="btnAdd" runat="server" value="Add"  onclick="javascript:OpenAttachmentUpload('<%=ID%>')" />

This is my javascript

 function OpenAttachmentUpload(ID) {
        var strPageURL = '<%= ResolveClientUrl("~/Folder/upload.aspx")+"?id=" %>' + ID;
        OpenCustomDialogWithRefresh(strPageURL, 350, 200, "Attachment");
    }

This is my server side variable

    private string ControlSessionId
    {
        get
        {
            if (ViewState["_SessionId"] == null)
                ViewState["_SessionId"] = Guid.NewGuid();
            return ViewState["_SessionId"].ToString();
        }
    }
    public string ID { get { return ControlSessionId; } }

Whenever I click the add button, it open upload.aspx but the query string id value is <%=ID%>. I would like to get the unique ID key from the server side.

What's wrong with my javascript? My project is sharepoint project.

Thit Lwin Oo · Accepted Answer · 2012-02-28 06:32:34Z

2

Please try this in server side.

btnAdd.Attributes.Add("onclick", "OpenAttachmentUpload('" + ID + "')");

answered Feb 28, 2012 at 6:32

Thit Lwin Oo

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1 Comment

kevin Over a year ago

Yes, very nice to meet you too bro. :-)

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