Hi,

I want to implement a control designer for my own usercontrol. I derived my control designer from the ParentControlDesigner. When I drag and drop a datasource to the user control design surface, a DataGridView will be added to the user control.

The question is: Can I change this default behavior?

When a datasource dropped on the usercontrol surface, may I just add some labels on the usercontrol surface and show the column names on each label?

thanks
ZC

Hi, Kira

Are you dragging the DataSet or DataTable?

I created a NorthWindDataSet, which contains a Employees DataTable.

Just now I try it again. I found I can change the default control by click the Employees table in datasource toolbox.


Thanks a lot.

ZC

Hi ZCH,

"When I drag and drop a datasource to the user control design surface, a DataGridView will be added to the user control."
What type of DataSource did you drag?

could you please show some code of the your derived ParentControlDesigner?

Sincerely,
Kira Qian

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Hi, Kira

I didn't add any code to my designer. I jsut derived from the ParentControlDesigner and attached to the usercontrol.

The question is if I drag a DataSource to the usercontrol, a datagridview control will be created automatically and added to the usercontrol design surface. May I change this default behavior?

Thanks
Best regards
ZC

Hi ZCH,

Is the DataSource a DataSet or something else?

If you create a class inherited from ParentControlDesigner and use it for your usercontrol without adding any code, it just change your usercontrol into a desinger surface allow any design action.

As you said, when a datasource is draged onto the designer surface, a DataGridView will be added. This action is related to the DataSource's designer not your derived ParentControlDesigner.

So please tell me what kind of DataSource first.

Sincerely,
Kira Qian

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Hi, Kira

Yes, the data source is a DataSet. So your mean a DataSet has it's own designer?


Thanks
ZC

Hi ZCH,

If you use Reflector to view the source code of CLR, you can see the designer of DataSet is called "Microsoft.VSDesigner.Data.VS.DataSetDesigner" under "Microsoft.VSDesigner.dll" version 8.0.0.0. I never reach that designer class yet.

Once I test to drag a DataSet onto my user control with derived ParentControlDesigner as its designer. I don't see any DataGridView followed. Is any special on your form?

If I misunderstood something, please feel free to tell me.

Sincerely,
Kira Qian

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Please mark the replies as answers if they help and unmark if they don't.

Hi, Kira

Are you dragging the DataSet or DataTable?

I created a NorthWindDataSet, which contains a Employees DataTable.

Just now I try it again. I found I can change the default control by click the Employees table in datasource toolbox.


Thanks a lot.

ZC