delphi could not convert variant of type (null) into type (olestr)

delphi could not convert variant of type (null) into type (olestr) ...但就错误提示来说,应该是你的数据类型错误,也就是你把一个空的variant类型转...

"Could not convert variant of type (NULL) into type (string)" function bday(edit1: tedit; q1:tadoquery): string; begin q1.Close; q1.SQL.Clear...

[Delphi]Open in popup windowuses cxVariants; procedure TfCompanyList.cx..."Could not convert variant of type (Null) into type (OleStr)" exception ...

Delphi - Could not convert variant of type (Null) into type (OleStr)Tag: delphi,rss,firemonkey I have this probleme, but it seems to be a little ...

Do you know why the block of code bellow will negate the "Could not convert variant of type (Null) into type (OleStr)" on some computers, not ...

Programmer's Town » Delphi & Builder » ADO - "Could not convert variant of type (Null) into type (String)" ...

Could not convert variant of type (Null) into type (OleStr). ask.programmershare.com provides programming skills exchange about delphi, wmi, delphi-xe2,...

application and it’s work verywell, but sametime the user open a tick with this error "Could not convert variant of type (OleStr) into type (...

//productdata_v2_01_01.xdb ` function TXMLProductType.Get_Productid: ... 4Could not convert variant of type (Null) into type (OleStr) 2Delphi ...

If you get the error message: "Could Not Convert Variant Of Type (Null) Into Type (OleStr)" when trying to access your open list, then here is ...