DataTable Editor not usable in inherited class

[chris901]

Hello,

i want to use a customized component based on your PgSqlDataTable.

So what i did was inherited it like this:

Code: Select all

    [ToolboxItem(true)]
    public class SqlDataTable : Devart.Data.PostgreSql.PgSqlDataTable
    {
        public SqlDataTable()
        {
        }
    }

It all works fine, except for one thing.

In the designer the PgSqlDataTable Editor looks like this:



On the original control it looks like this:



So the inherited component is somehow disabled and doesn't allow any input.

Is there a way to fix this?

Best regards,
Chris

[Pinturiccio]

Try inheriting PgSqlDataTable two times, like this:

Code: Select all

[ToolboxItem(true)]
public class FirstSqlDataTable : Devart.Data.PostgreSql.PgSqlDataTable
{
    public FirstSqlDataTable()
    {
    }
}

[ToolboxItem(true)]
public class SqlDataTable : FirstSqlDataTable
{
    public SqlDataTable()
    {
    }
}

In this case SqlDataTable will have a working PgSqlDataTable Editor.

[chris901]

Thank you

[chris901]

So the DataTable is working fine.

However now i want to create an inherited component of PgSqlDataSet.

The double inheritance didn't work this time.



The Buttons of the DataSet Editor are disabled.

Could you please tell me how i can get this working?

Best regards,
Chris

[Pinturiccio]

For inheriting the PgSqlDataSet class you do not need double inheritance. Try inheriting the PgSqlDataSet class without the [ToolboxItem(true)] attribute.

[chris901]

Hello,

i tried the create a descendant class without ToolboxItem(true) like this:

Code: Select all

    
public class NewSqlDataSet : Devart.Data.PostgreSql.PgSqlDataSet
    {
        public NewSqlDataSet()
        {
            // custom code
        }
    }

However the buttons are still disabled.
I tried several other inheritance kinds but those buttons are always disabled.

I would appreciate if you could let me know how i can inherit PgSqlDataSet and get a working Editor / Designer.

[Pinturiccio]

We have added some changes to the PgSqlDataSet class and its editor should work after inheriting. We will post here when the corresponding build of dotConnect for PostgreSQL is available for download.

[chris901]

Thank you, much appreciated.

[chris901]

Any news on when the update will be released?

[Pinturiccio]

Sorry for the late notification. The changes should be available in the latest version 7.6.714 of dotConnect for PostgreSQL. It can be downloaded from http://www.devart.com/dotconnect/postgr ... nload.html (trial version) or from Registered Users' Area (for users with valid subscription only).

Please post here about the results.

[chris901]

Sorry, I also forgot the reply.

Yes it is working fine.

I am wondering if you could implement the ability to directly inherit from PgSqlDataTable so we don't have to use a "dummy" class so it gets inherited 2 times to use the editor in the descendant? Thanks.

[Pinturiccio]

We will investigate the possibility to implement a valid DataTable editor in the first descendant of PgSqlDataTable and post here about the results as soon as possible.

[Pinturiccio]

We have fixed the bug with disabled DataTable editor in a first descendant of the PgSqlDataTable class. We will post here when the corresponding build of dotConnect for PostgreSQL is available for download.

[chris901]

Sounds good, looking forward to it

[Pinturiccio]

New build of dotConnect for PostgreSQL 7.6.743 is available for download now!
It can be downloaded from http://www.devart.com/dotconnect/postgr ... nload.html (trial version) or from Registered Users' Area (for users with valid subscription only).
For more information, please refer to viewtopic.php?t=34317