使用 SQL 指令執行報表 不需設定 Crystal Report 連線

Imports System.Data.SqlClient Imports CrystalDecisions.CrystalReports.Engine Imports CrystalDecisions.Shared ‘ 轉 OFFICE 需要

Dim objRpt As New CrystalReport1 Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim cnn As SqlConnection Dim connectionString As String Dim sql As String connectionString = "data source=MYCHAT-57ED6516;initial catalog=pubs;user id=abc;password=123;" cnn = New SqlConnection(connectionString) cnn.Open() sql = procesSQL() Dim dscmd As New SqlDataAdapter(sql, cnn) Dim ds As New DataSet1 dscmd.Fill(ds, "authors") objRpt.SetDataSource(ds.Tables(1)) CrystalReportViewer1.ReportSource = objRpt CrystalReportViewer1.Refresh() End Sub

Public Function procesSQL() As String Dim sql As String Dim inSql As String Dim firstPart As String Dim lastPart As String Dim selectStart As Integer Dim fromStart As Integer Dim fields As String() Dim i As Integer Dim MyText As TextObject inSql = TextBox1.Text inSql = inSql.ToUpper selectStart = inSql.IndexOf("SELECT") fromStart = inSql.IndexOf("FROM") selectStart = selectStart + 6 firstPart = inSql.Substring(selectStart, (fromStart - selectStart)) lastPart = inSql.Substring(fromStart, inSql.Length - fromStart)

fields = firstPart.Split(",") firstPart = "" For i = 0 To fields.Length - 1 If i > 0 Then firstPart = firstPart & ", " _ & fields(i).ToString() & " AS COLUMN" & i + 1 MyText = CType(objRpt.ReportDefinition.ReportObjects("Text" _ & i + 1), TextObject) MyText.Text = fields(i).ToString() Else firstPart = firstPart & fields(i).ToString() & _ " AS COLUMN" & i + 1 MyText = CType(objRpt.ReportDefinition.ReportObjects("Text" & _ i + 1), TextObject) MyText.Text = fields(i).ToString() End If Next sql = "SELECT " & firstPart & " " & lastPart Return sql End Function

使用 SQL 指令執行報表 需設定 Crystal Report 連線

Imports System.Data.SqlClient Imports CrystalDecisions.CrystalReports.Engine Imports CrystalDecisions.Shared ‘ 轉 OFFICE 需要

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim cnn As SqlConnection Dim connectionString As String Dim sql As String connectionString = "data source=MYCHAT-57ED6516;initial catalog=pubs;user id=abc;password=123;" cnn = New SqlConnection(connectionString) cnn.Open() sql = "select au_id,au_lname,au_fname from authors where au_lname like '%a%'" Dim dscmd As New SqlDataAdapter(sql, cnn) Dim ds As New DataSet2 dscmd.Fill(ds, "authors") MsgBox(ds.Tables(1).Rows.Count) cnn.Close() Dim objRpt1 As New CrystalReport2 objRpt1.SetDataSource(ds.Tables(1)) CrystalReportViewer1.ReportSource = objRpt1 CrystalReportViewer1.Refresh() End Sub

轉 EXCEL Try Dim CrExportOptions As ExportOptions Dim CrDiskFileDestinationOptions As New _ DiskFileDestinationOptions() Dim CrFormatTypeOptions As New ExcelFormatOptions CrDiskFileDestinationOptions.DiskFileName = "c:\crystalExport.xls" CrExportOptions = objRpt1.ExportOptions With CrExportOptions.ExportDestinationType = ExportDestinationType.DiskFile.ExportFormatType = ExportFormatType.Excel.DestinationOptions = CrDiskFileDestinationOptions.FormatOptions = CrFormatTypeOptions End With objRpt1.Export() MessageBox.Show("export to EXCEL succeed!") Catch ex As Exception MsgBox(ex.ToString) End Try

轉 PDF Try Dim CrExportOptions As ExportOptions Dim CrDiskFileDestinationOptions As New _ DiskFileDestinationOptions() Dim CrFormatTypeOptions As New PdfRtfWordFormatOptions() CrDiskFileDestinationOptions.DiskFileName = "c:\crystalExport.pdf" CrExportOptions = objRpt1.ExportOptions With CrExportOptions.ExportDestinationType = ExportDestinationType.DiskFile.ExportFormatType = ExportFormatType.PortableDocFormat.DestinationOptions = CrDiskFileDestinationOptions.FormatOptions = CrFormatTypeOptions End With objRpt1.Export() MessageBox.Show("export to PDF succeed!") Catch ex As Exception MsgBox(ex.ToString) End Try

轉 WORD Try Dim CrExportOptions As ExportOptions Dim CrDiskFileDestinationOptions As New _ DiskFileDestinationOptions() Dim CrFormatTypeOptions As New PdfRtfWordFormatOptions CrDiskFileDestinationOptions.DiskFileName = "c:\aa.doc" CrExportOptions = objRpt1.ExportOptions With CrExportOptions.ExportDestinationType = ExportDestinationType.DiskFile.ExportFormatType = ExportFormatType.WordForWindows.DestinationOptions = CrDiskFileDestinationOptions.FormatOptions = CrFormatTypeOptions End With objRpt1.Export() MessageBox.Show("export to WORD succeed!") Catch ex As Exception MsgBox(ex.ToString) End Try

轉 XML Dim cnn As SqlConnection Dim connectionString As String Dim sql As String connectionString = "data source=MYCHAT-57ED6516;initial catalog=pubs;user id=sa;password=rc890830;" cnn = New SqlConnection(connectionString) cnn.Open() sql = "select au_id,au_lname,au_fname from authors" Dim dscmd As New SqlDataAdapter(sql, cnn) Dim ds As New DataSet2 dscmd.Fill(ds, "authors") ds.WriteXml("c:\abc.xml") cnn.Close() MessageBox.Show("export to XML succeed!")

指定 CrystalReport 上物件的資料 Dim a As TextObject a = objRpt1.ReportDefinition.ReportObjects.Item("Text1") ' 指到 crystalreport 上的 Text1 物件 a.Text = "hahaha" ' 指定 crystalreport 上 Text1 的內容

CrystalReport 的使用 Dim cryRpt As New ReportDocument Dim a As TextObject Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click cryRpt.Load("C:\Documents and Settings\Administrator\ 桌面 \report\report\CrystalReport4.rpt") a = cryRpt.ReportDefinition.ReportObjects.Item("Text2") ' 指到 crystalreport4 上 的 Text2 物件 a.Text = "hahaha" ' 指定 crystalreport4 上 Text2 的內容 CrystalReportViewer1.ReportSource = cryRpt CrystalReportViewer1.Refresh() End Sub

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