C# 使用 Microsoft.Reporting.WinForms 动态加载嵌入式资源报告
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Dynamically Load Embedded Resource Report Using Microsoft.Reporting.WinForms
提问by Craig Eddy
How does one dynamically load a new report from an embedded resource? I have created a reporting project that contains a report as an embedded resource. I added a second report file and use the following code to switch reports:
如何从嵌入式资源动态加载新报告？我创建了一个报告项目，其中包含一个作为嵌入式资源的报告。我添加了第二个报告文件并使用以下代码切换报告：
this.reportViewer1.LocalReport.ReportEmbeddedResource = "ReportsApplication2.Report2.rdlc";
this.reportViewer1.LocalReport.Refresh();
this.reportViewer1.RefreshReport();
When this code executes, the original report remains visible in the report viewer.
执行此代码时，原始报表在报表查看器中仍然可见。
I have also tried using
我也试过使用
LocalReport.LoadReportDefinition
but had the same result.
但结果相同。
采纳答案by Craig Eddy
The answer: you have to call
答案：你必须打电话
<ReportViewer>.Reset();
prior to changing the value of ReportEmbeddedResource or calling LoadReportDefinition.
在更改 ReportEmbeddedResource 的值或调用 LoadReportDefinition 之前。
After you do so, you'll also have to call
在你这样做之后，你还必须打电话
<ReportViewer>.LocalReport.DataSources.Add( ... );
to re-establish the data sources.
重新建立数据源。
