Microsoft.Reporting.WinForms.ReportDataSource reportDataSource2 = new Microsoft.Reporting.WinForms.ReportDataSource();
this.ProduceDB_MainBindingSource = new System.Windows.Forms.BindingSource(this.components);
DataTable dtTable = reportDataSource2 as DataTable;
错误 1 无法通过引用转换、装箱转换、取消装箱转换、包装转换或 null 类型转换将类型“Microsoft.Reporting.WinForms.ReportDataSource”转换为“System.Data.DataTable” C:\框架\框架\Form4.cs 144 33 框架
转换不过来就使用不 了NPOI
this.ProduceDB_MainBindingSource = new System.Windows.Forms.BindingSource(this.components);
DataTable dtTable = reportDataSource2 as DataTable;
错误 1 无法通过引用转换、装箱转换、取消装箱转换、包装转换或 null 类型转换将类型“Microsoft.Reporting.WinForms.ReportDataSource”转换为“System.Data.DataTable” C:\框架\框架\Form4.cs 144 33 框架
转换不过来就使用不 了NPOI
