给你看看我的程序,我就是用动态数据源,水晶报表8.0 窗体代码 Dim rs As ADODB.Recordset Dim Report As New CrystalReport1 Dim msgtext As String Private Sub Form_Load() Dim strsql As String strsql = "select * from dw_table where dw_bm='" & Form2.Text1.Text & "'" Set rs = ExecuteSQL(strsql, msgtext) Report.Database.SetDataSource rs
End SubPrivate Sub Form_Resize() CRViewer1.Top = 0 CRViewer1.Left = 0 CRViewer1.Height = ScaleHeight CRViewer1.Width = ScaleWidthEnd SubPrivate Sub Form_Unload(Cancel As Integer) Set Report = Nothing End Sub类模块代码也就是ExecuteSQL函数 Dim msgtext As String Dim mrc As ADODB.RecordsetPublic Function ExecuteSQL(ByVal sql As String, MsgString As String) As ADODB.Recordset Dim cnn As ADODB.Connection Dim rst As ADODB.Recordset Dim sTokens() As String 'Dim SQL As String On Error GoTo ExecuteSQL_Error sTokens = Split(sql) Set cnn = New ADODB.Connection cnn.Open ConnectString If InStr("INSERT,DELETE,UPDATE", UCase$(sTokens(0))) Then cnn.Execute sql MsgString = sTokens(0) & "query successful" Else Set rst = New ADODB.Recordset rst.Open Trim$(sql), cnn, adOpenKeyset, adLockOptimistic
Set ExecuteSQL = rst
MsgString = "查询到" & rst.RecordCount & "条纪录" End If ExecuteSQL_Exit: Set rst = Nothing Exit Function Set cnn = Nothing ExecuteSQL_Error: MsgString = "查询错误:" & Err.Description Resume ExecuteSQL_Exit End FunctionPublic Function ConnectString() As String ConnectString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & App.Path & "\计划管理系统.mdb;Persist Security Info=False" End Function
窗体代码
Dim rs As ADODB.Recordset
Dim Report As New CrystalReport1
Dim msgtext As String
Private Sub Form_Load()
Dim strsql As String
strsql = "select * from dw_table where dw_bm='" & Form2.Text1.Text & "'"
Set rs = ExecuteSQL(strsql, msgtext)
Report.Database.SetDataSource rs
CRViewer1.ReportSource = Report
CRViewer1.ViewReport
Screen.MousePointer = vbDefault
End SubPrivate Sub Form_Resize()
CRViewer1.Top = 0
CRViewer1.Left = 0
CRViewer1.Height = ScaleHeight
CRViewer1.Width = ScaleWidthEnd SubPrivate Sub Form_Unload(Cancel As Integer)
Set Report = Nothing
End Sub类模块代码也就是ExecuteSQL函数
Dim msgtext As String
Dim mrc As ADODB.RecordsetPublic Function ExecuteSQL(ByVal sql As String, MsgString As String) As ADODB.Recordset
Dim cnn As ADODB.Connection
Dim rst As ADODB.Recordset
Dim sTokens() As String
'Dim SQL As String
On Error GoTo ExecuteSQL_Error
sTokens = Split(sql)
Set cnn = New ADODB.Connection
cnn.Open ConnectString
If InStr("INSERT,DELETE,UPDATE", UCase$(sTokens(0))) Then
cnn.Execute sql
MsgString = sTokens(0) & "query successful"
Else
Set rst = New ADODB.Recordset
rst.Open Trim$(sql), cnn, adOpenKeyset, adLockOptimistic
Set ExecuteSQL = rst
MsgString = "查询到" & rst.RecordCount & "条纪录"
End If
ExecuteSQL_Exit:
Set rst = Nothing
Exit Function
Set cnn = Nothing
ExecuteSQL_Error:
MsgString = "查询错误:" & Err.Description
Resume ExecuteSQL_Exit
End FunctionPublic Function ConnectString() As String
ConnectString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & App.Path & "\计划管理系统.mdb;Persist Security Info=False"
End Function