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Logon failed. Details: crdb_adoplus : Object reference not set to an instance of an object

Logon failed. Details: crdb_adoplus : Object reference not set to an instance of an object.
Error in File C:\DOCUME~1\JASONML\ASPNET\LOCALS~1\Temp\ReleasedDrawings {AA4B9DD0-25C5-40B9-9847-74F743ADEAED}.rpt: Unable to connect: incorrect log on parameters.

This error occurs because of error error in used dataset. Recreate the dataset will solve the problem.

Comments

Unknown said…
Could you please post more details. I got the same issue.

My report source is a dataset generated through query(SQL 2005).

I have used ReportDocument's SetDataSource method to assign the data source for the report and I am passing a datatable in to it. The name of the table in the dataset and the table I pass are same.

Here is my code

reportDoc.Load(Server.MapPath(@"Reports\Invoice.rpt"));

reportDoc.SetDataSource(mydatatable);
reportDoc.SetDatabaseLogon(@"domain\uname", "password");

CrystalReportViewer1.ReportSource = reportDoc;
CrystalReportViewer1.DataBind();

I can see the 1st page of the report. but when I try to move to the next page, I get the following error.

Logon failed. Details: crdb_adoplus : Object reference not set to an instance of an object. Error in File C:\Users\LINSEM~1.KEL\AppData\Local\Temp\Invoice {87EFEAE9-9E35-43B9-BB1F-6CF5185D943F}.rpt: Unable to connect: incorrect log on



Could anyone please help.

Linsemon
b said…
Hi,
In my case this happened because of not marching the existing data set xml. there for re create the dataset by deleting existing data set solved my problem.( You can copy and paste same queries to new data set)
Anonymous said…
HI, i have the same problem . i can only see the first page and when i try to move to next page or try to export using export button on the toolbar or refresh the report , i got the same problem.
Although i tried to re create the data set , but it cannot solved.
Please help me. I am stuck in this stage too long.

please help me.
Anonymous said…
Hey Linsemon,

I know this waaay too late. But for someone else having the same issue; just do the same thing you do to load data in the first time, in subsequent navigation events. You can tap in to that event by adding a method to "OnNavigate=" attribute of the CrystalReportViewer element, in your aspx page.
Anonymous said…
Thanks! Yes the object I was binding to was not in sync with what the report was expecting. The error message is a bit misleading and must be been used generically

www.high-flying.co.uk
Thanks! Yes the object I was binding to was not in sync with what the report was expecting. The error message is a bit misleading and must be been used generically
b said…
@deelin

Hi, this error came to me because data set used is not match with the current data schema in the database. may be some columns and data types are different than the original. So i recreate the data set and it worked. Hope this will help you.

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