My Component error on show preview

Melon

Hi,

I designed my own TDataset descendant component, i have planned to use FastReport for data reports. I am trying to play with it to see how it works, i found an error when generating preview. When i investigate it, the error come from event AfterOpen on unit data.db.

So my question, What procedure or function should i provide in my component to make it compatible with FastReport.

Almost forget to mention, i use fastReport 4.6 that comes with Delphi XE2.

Below is the error message,

---

Debugger Exception Notification

---

Project Project1.exe raised exception class $C0000005 with message 'access violation at 0x004082b3: read of address 0xbaadf00d'.



Thanks.

Melon

Sorry guys, i close this topic.

I've found what causes the problem, it is function GetFieldNames from my own component.

Thanks anyway.

Melon wrote: »

Hi,

I designed my own TDataset descendant component, i have planned to use FastReport for data reports. I am trying to play with it to see how it works, i found an error when generating preview. When i investigate it, the error come from event AfterOpen on unit data.db.

So my question, What procedure or function should i provide in my component to make it compatible with FastReport.

Almost forget to mention, i use fastReport 4.6 that comes with Delphi XE2.

Below is the error message,

---

Debugger Exception Notification

---

Project Project1.exe raised exception class $C0000005 with message 'access violation at 0x004082b3: read of address 0xbaadf00d'.



Thanks.