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Lindsay
130
UltraCombo or UltraComboEditor
posted

Hi,

 I would like to know how to limit the number of cols displayed when one clicks the UltraCombo "down" btn.

I bind the ctl to a DataTable, set the DisplayMember property to a col name from the bound table. Then I try to set the DataMember property  to a col name from the bound table too, but get an "Object not set to ....blah blah" error. 

If I don't set the DataMember property, all works BUT the WHOLE table displays when I select the "down" on the control @ runtime.
I only want to display one of the cols.

Can I do that on the UltraCombo AND remain bound to the whole DataTable?

I don't want to use the UltraComboEditor as I don't seem to be able to adjust the width of the list displayed...

Thanks

  • 130
    posted

    OK, to add more info to this. do one of the following things:

                    this.DataMember = sDisplayField;      //Where sDisplayField is the field I want displayed in the dropdown
                    this.DataSource = dt;                        //dt is the DataTable to which I am binding
    OR
                    this.SetDataBinding(dt, sDisplayField, false, false);

    Neither of the above two scenarios work and I get an "Object reference not set to an instance of an object." ERROR.

    However, if I don't assign to the DataMember property, the binding works but I get to see the WHOLE table in the dropdown at run-time.
    I only want to see ONE named field. And yes, I have checked that the field is named correctly when assigning to the DataMember as I can also assign to DisplayMember without errors.

    URGENT, please help!

    Thanks