telerik报告中的会话为空

Question

http://www.telerik.com/help/reporting/mvc-report-viewer-extension-embedding.html

我正在使用带有ASP.NET MVC的telerik报告并尝试访问会话变量，但它总是返回null。会话在除以下方法之外的任何其他地方都能完美运行

private void Report4_ItemDataBound(object sender, EventArgs e)
        {
            ReportViewModel model = (ReportViewModel)System.Web.HttpContext.Current.Session["ReqColumns"]; // session is null here

        }

        private void Report4_NeedDataSource(object sender, EventArgs e)
        {
            ReportViewModel model = (ReportViewModel)System.Web.HttpContext.Current.Session["ReqColumns"]; // session is null here

        }

Answer 1

试试这个可能有帮助...

// Use parameter

private void HDMF_NeedDataSource(object sender, EventArgs e)
{

    string group= string.Empty;
    string sortBy = string.Empty;
    Telerik.Reporting.Processing.Report report = (Telerik.Reporting.Processing.Report)sender;
    var payoutUID = report.Parameters["payoutUID"].Value.ToString();
    // some code here...
}