我怎样才能加载数据表作为ReportDataSource？ [英] How can I load datatable as ReportDataSource?

问题描述

我试图做这样的事情：

this.reportViewer.LocalReport.DataSources.Clear();
DataTable dt = new DataTable();
dt = this.inputValuesTableAdapter.GetData();    
Microsoft.Reporting.WinForms.ReportDataSource rprtDTSource = new Microsoft.Reporting.WinForms.ReportDataSource();

rprtDTSource = dt; // this line generates exception   

//this.reportViewer.LocalReport.DataSources.Add(rprtDTSource);
this.reportViewer.RefreshReport();

我如何可以加载数据表作为ReportDataSource？

How can I load datatable as ReportDataSource?

目前的code生产：
无法隐式转换类型'System.Data.DataTable'到'Microsoft.Reporting.WinForms.ReportDataSource'

The current code produces: "Cannot implicitly convert type 'System.Data.DataTable' to 'Microsoft.Reporting.WinForms.ReportDataSource' "

推荐答案

您没有正确初始化ReportDataSouce。试试这个：

You are not initializing the ReportDataSouce correctly. Give this a try:

this.reportViewer.LocalReport.DataSources.Clear(); 
DataTable dt = new DataTable(); 
dt = this.inputValuesTableAdapter.GetData();     

Microsoft.Reporting.WinForms.ReportDataSource rprtDTSource = new Microsoft.Reporting.WinForms.ReportDataSource(dt.TableName, dt); 

this.reportViewer.LocalReport.DataSources.Add(rprtDTSource); 
this.reportViewer.RefreshReport(); 

此外，您可能需要改变的第一个参数的构造函数ReportDataSource来设置你的报告预计数据源的名称。

Also, you might need to alter the first parameter to the ReportDataSource constructor to set the name of the datasource that your report is expecting.

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