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Hi <br />
&nbsp;I'm trying to fix drilldown reports open connection failed error , this only appears on aspx.vb postbacks, either through page navigation or through drill down. Appreciate if you could help me resolve this issue.<br />
<br />
&nbsp;Regards,<br />
&nbsp;Member_2_7969420<br />
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CrystalReportError.png

Hi 
 I'm trying to fix drilldown reports open connection failed error , this only appears on aspx.vb postbacks, either through page navigation or through drill down. Appreciate if you could help me resolve this issue.

 Regards,
 Member_2_7969420

Crystal Reports 2016 Failed to open the connection Database Vendor Code 17, Error creating new data source

Hi 
 I&#39;m trying to fix drilldown reports open connection failed error , this only appears on aspx.vb postbacks, either through page navigation or through drill down. Appreciate if you could help me resolve this issue.

 Regards,
 Member_2_7969420

Crystal Reports is a business intelligence application from SAP SE. It is used to graphically design data connections and report layouts from a wide range of data sources including Excel spreadsheets, Oracle, SQL Server databases and Access databases, BusinessObjects Enterprise business views, and local file-system information. Report designers can place fields from these sources on the report design surface, and can also deploy them in custom formulas (using either BASIC or Crystal's own syntax), which are then placed on the design surface. Crystal Reports also supports subreports, graphing, and a limited amount of GIS functionality.

Crystal Reports

Visual Basic .NET (VB.NET) is an object-oriented programming language implemented on the .NET framework, but also supported on other platforms such as Mono and Silverlight. Microsoft launched VB.NET as the successor to the Visual Basic language. Though it is similar in syntax to  Visual Basic pre-2002, it is not the same technology,

Visual Basic.NET

The successor to Active Server Pages, ASP.NET websites utilize the .NET framework to produce dynamic, data and content-driven web applications and services. ASP.NET code can be written using any .NET supported language. As of 2009, ASP.NET can also apply the Model-View-Controller (MVC) pattern to web applications

ASP.NET

Microsoft SQL Server is a suite of relational database management system (RDBMS) products providing multi-user database access functionality.SQL Server is available in multiple versions, typically identified by release year, and versions are subdivided into editions to distinguish between product functionality. Component services include integration (SSIS), reporting (SSRS), analysis (SSAS), data quality, master data, T-SQL and performance tuning.