本文介绍了我怎样才能加载数据表作为ReportDataSource?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
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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