Generar Pdf Con Crystal Reports Vb.net

`How to Generate PDF with Crystal Reports in VB.NET`

`Crystal Reports is a powerful reporting tool that allows you to create, design, and export reports from various data sources. One of the most common tasks when working with Crystal Reports is to export them as PDF files for easy sharing and printing. In this article, we will show you how to generate PDF with Crystal Reports in VB.NET using the Crystal Reports SDK.`

`Prerequisites`

`To follow this tutorial, you will need:`

`A Visual Studio project with Crystal Reports installed.`

`A report file (.rpt) that you want to export as PDF.`

`A folder where you want to save the PDF file.`

`Steps`

`Here are the steps to generate PDF with Crystal Reports in VB.NET:`

`Import the necessary namespaces for Crystal Reports and PDF export.`

`Create an instance of the ReportDocument class and load the report file.`

`Set any parameters or logon credentials for the report if needed.`

`Use the ExportToDisk method of the ReportDocument class to export the report as PDF and save it to the specified folder.`

`Dispose the ReportDocument object to release any resources.`

`Code Example`

`The following code example shows how to generate PDF with Crystal Reports in VB.NET:`

```vb

'Import the necessary namespaces

Imports CrystalDecisions.CrystalReports.Engine

Imports CrystalDecisions.Shared

'Create an instance of the ReportDocument class and load the report file

Dim cryRpt As New ReportDocument()

cryRpt.Load(\"C:\\Reports\\MyReport.rpt\")

'Set any parameters or logon credentials for the report if needed

'For example:

'cryRpt.SetParameterValue(\"StartDate\", Date.Today)

'cryRpt.SetDatabaseLogon(\"username\", \"password\", \"server\", \"database\")

'Use the ExportToDisk method to export the report as PDF and save it to the specified folder

cryRpt.ExportToDisk(ExportFormatType.PortableDocFormat, \"C:\\PDF\\MyReport.pdf\")

'Dispose the ReportDocument object to release any resources

cryRpt.Dispose()

```

`Benefits of Generating PDF with Crystal Reports`

`Generating PDF with Crystal Reports has many benefits, such as:`

`PDF files are widely supported and compatible with various platforms and devices.`

`PDF files preserve the formatting and layout of the report, regardless of the printer or viewer settings.`

`PDF files are secure and can be encrypted, signed, or password-protected.`

`PDF files are easy to share and distribute via email or web.`

`Limitations and Alternatives of Generating PDF with Crystal Reports`

`Generating PDF with Crystal Reports also has some limitations and alternatives, such as:`

`The ExportToDisk method may not support some advanced features or options of the PDF format, such as bookmarks, hyperlinks, or annotations.`

`The ExportToDisk method may take longer time or consume more memory if the report is large or complex.`

`The ExportToDisk method may require additional permissions or settings on the server or client machine.`

`An alternative to the ExportToDisk method is to use the ExportToStream method, which returns a stream object that can be written to a file, a response object, or a memory stream.`

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