Set params of Loader in code behind

[adopilot]

[adopilot]

My apologies if this question was too rough or unclear.

My mistake was in Reload() method.
I just need to call tabReportViewer.LoadContent(); and then I sent param with new va

        protected void FocusTab(object sender, EventArgs e)
        {

            tabReportViewer.Loader.Params.Add(new Ext.Net.Parameter("docId",DateTime.Now.ToLongTimeString()));
            tabReportViewer.Loader.Params.Add(new Ext.Net.Parameter("hamoPipa", DateTime.Now.ToLongTimeString()));
            tabReportViewer.LoadContent();
        }