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在这里,我试图在单击一次按钮时执行两个函数,即一个 javascript 和一个 c# 代码。问题是这两个函数同时执行。这是我的函数:

Javascript函数

 function exportCharts() {
            var exportFormat = 'JPG';
            initiateExport = true;
            for (var chartRef in FusionCharts.items) {
                if (FusionCharts.items[chartRef].exportChart) {
                    document.getElementById("linkToExportedFile").innerHTML = "Exporting...";
                    FusionCharts.items[chartRef].exportChart({ "exportFormat": exportFormat });
                }
                else {

                    document.getElementById("linkToExportedFile").innerHTML = "Please wait till the chart completes rendering...";
                }
            }
        }

c#代码:

 protected void imgBTNExportPPT_Click(object sender, ImageClickEventArgs e)
        {
            try
            {
                PredictExportToPPT objOExporttoPPT = new PredictExportToPPT();

                PredictionModel();

                string reportNames = ObjCommon.GetBIReportNames("Prediction", "Report");
                reportNames += ObjCommon.GetBIReportNames("Prediction", "Table");

                objOExporttoPPT.ExportToPPTPredict(ObjPredictInputParameter, reportNames, ObjSharedEntities.PredictTableData);

                string itemname = "PPTOutput.pptx";
                HttpContext.Current.Response.Clear();
                HttpContext.Current.Response.ContentType = "pptx";
                HttpContext.Current.Response.AddHeader("Content-Disposition", "attachment; filename=" + itemname + "");
                HttpContext.Current.Response.BinaryWrite(System.IO.File.ReadAllBytes(HttpContext.Current.Server.MapPath(DataTemplate.PPTOutputTemplateFilePath)));
                HttpContext.Current.Response.Flush();
                HttpContext.Current.Response.End();

            }
            catch (Exception exceptionMessage)
            {
                throw (exceptionMessage);
            }
            finally
            {
                GC.Collect();
            }
        }

按钮点击代码

 <asp:ImageButton ID="imgBTNExportPPT" runat="server" Width="15" Height="15" border="0" OnClientClick="return exportCharts()" OnClick="imgBTNExportPPT_Click" />

如果我尝试将System.Threading.Thread.Sleep用于 c# 代码,则 javascript 代码首先执行但不完全执行。它等到 c# 代码执行,最后同时生成两个输出。我希望它发生在另一个之后。有什么建议么?

4

1 回答 1

2

我已经测试过它正在工作

<asp:ImageButton ID="imgBTNExportPPT" runat="server" Width="15" Height="15" border="0" OnClientClick="exportReport()" OnClick="imgBTNExportPPT_Click" />

   <script>
            function exportReport() {
              exportCharts();
             __doPostBack("imgBTNExportPPT","");
         }
    </script>

如果您使用的是母版页,则:

代替

__doPostBack("imgBTNExportPPT","");

__doPostBack("ctl00$MainContent$imgBTNExportPPT", "");
于 2012-06-27T14:18:14.983 回答