报告参数有问题 [英] Problem with report parameter

问题描述

我尝试在视觉基本的reportviewer中传递参数.我在网上用C#获得了此代码，然后将其翻译为VB.Net.运行时出现错误.谁能告诉我为什么会这样以及解决方案吗?

I try to pass parameter in my visual basic reportviewer. I got this code in C# around the web then I translated it into VB.Net. I''ve got errors when I run it. Can anybody tell me why this happens and the solution??

Private Sub ReportViewerManual_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load
    'TODO: This line of code loads data into the 'dbtutorialDataSet.tbltutorial' table. You can move, or remove it, as needed.
    Me.tbltutorialTableAdapter.Fill(Me.dbtutorialDataSet.tbltutorial)
    Me.ReportViewer1.RefreshReport

    Dim AdapterKu As dbtutorialDataSetTableAdapters.tbltutorialTableAdapter = New dbtutorialDataSetTableAdapters.tbltutorialTableAdapter
    Dim TableKu As dbtutorialDataSet.tbltutorialDataTable = New dbtutorialDataSet.tbltutorialDataTable
    AdapterKu.FillBy(TableKu,"7")
    Dim myDataSource As ReportDataSource = new ReportDataSource("Dataset1",(DataTable)TableKu)'-->Here's the error
    Me.ReportViewer1.LocalReport.DataSources.Clear
    Me.ReportViewer1.LocalReport.DataSources.Add(mydatasource)
    Me.ReportViewer1.LocalReport.Refresh
End Sub

推荐答案

我不确定该语句中的(Datatable)位是什么:

I''m not sure what the (Datatable) bit is for in that statement:

Dim myDataSource As ReportDataSource = new ReportDataSource("Dataset1",(DataTable)TableKu)'-->Here's the error

如果您改用它，它会起作用吗?

does it work if you use this instead?

Dim myDataSource As ReportDataSource = new ReportDataSource("Dataset1",TableKu)

如果不起作用，请此处 [ ^ ]是MSDN ReportDataSource构造函数的链接.并且此处 [

If that doesn''t work, here[^] is the MSDN Link for the ReportDataSource Constructor. And here[^] is a walk-through on printing a report that might help.

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