如何在Visual Basic .net中通过SQL查询字符串从数据库向Crystal Reports生成多个图像
我的代码:
Dim strcon As String = Form2.strcon
Dim connection As New SqlConnection(strcon)
Dim da As New SqlDataAdapter
Private Sub Form11_Load(sender As Object, e As EventArgs) Handles MyBase.Load
Dim ds1 As New DataSet1
Dim sql As String
connection.Open()
sql = "Select no, name, pic from tmp_data"
da = New SqlDataAdapter(sql, connection)
da.Fill(ds1, "warranty")
MsgBox(ds1.Tables(1).Rows.Count)
connection.Close()
Dim objRpt As New u1report 'this is my crystal report
objRpt.SetDataSource(ds1.Tables(1))
CrystalReportViewer1.ReportSource = objRpt
CrystalReportViewer1.Refresh()
End Sub
我的桌子:
no name pic
2430868 22T 22T-SL1904185507.jpg
2430869 22T 22T-SL1904185508.jpg
2430870 22T 22T-SL1904185509.jpg
2430871 22T 22T-SL1904185510.jpg
2430872 22T 22T-SL1904185511.jpg
我可以显示此信息,但不知道如何通过编码显示图片。 我可以做吗?怎么样?谢谢您的帮助。