Question

我正在开发Winform Application，我是Reports（rdlc）的新手。我想从数据库中获取数据，并将它们作为数据源设置为我的代码报告。我正在使用Vb.net，以下是我试过的代码......

Dim conn As OleDbConnection
Dim adpt As OleDbDataAdapter
Dim rs As DataTable
Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
    conn = New OleDbConnection
    conn.ConnectionString = "provider=Microsoft.Jet.OLEDB.4.0; Data Source=D:\tblentries.mdb"
    conn.Open()
    adpt = New OleDbDataAdapter("select * from tblentries", conn)
    rs = New DataTable
    adpt.Fill(rs)
    Dim ds As DataSet = New DataSet("DataSetOne")
    ds.Tables.Add(rs)
    ReportViewer1.LocalReport.DataSources.Clear()
    ReportViewer1.LocalReport.DataSources.Add(New ReportDataSource("Report1", ds.Tables(0)))
    ReportViewer1.LocalReport.Refresh()
    Me.ReportViewer1.RefreshReport()
End Sub

结果我得到的是空白报告请建议我我是新来的报道，我发布的代码是从谷歌推荐的。谢谢，我在等待......

Answer 1

没有rdlc文件很难回答。我认为问题是您给ReportDataSource的名称与报告中的数据源名称不匹配。

同时检查ProcessingMode

ReportViewer1.ProcessingMode = Microsoft.Reporting.WinForms.ProcessingMode.Local

另见Datasource for RDL reports with ReportViewer

如何在vb.net中将reportdatasource设置为rdlc报告？

1 个答案: