In WebCombo V4.0, you are able to use linked combo in unbound mode.

In this topic, you will learn how to implement the scenario above.

To use unbound linked WebCombo.

1. Drag and drop two WebCombo instances and named them as WebCombo1 and WebCombo2 respectively.
2. Right click on WebCombo1 to open WebCombo.NET Designer - Columns and Rows.
3. Add a new Column and named it Country.
4. Click on the Rows and add "USA", "England" and "Japan".
   
   
   
   
5. Right click on WebCombo2 to open WebCombo.NET Designer - Columns and Rows.
6. Add two new Column and named them as City and Country respectively.
7. Set City's BaseFileName to "City" and Country's BaseFileName to "Country".
8. Set Country's Hidden and RenderOnHidden to True.
   
   
   
   
9. Click on the Rows to add some rows to WebCombo2's columns.
   
   
   
   
10. Open WebCombo2's properties and find the LinkSettings.
    
    

    Property	Value
    Enabled	True
    FilterDataMember	Country
    ParentWebComboID	WebCombo1

    
    
11. The result should look like following.
    
    

See Also

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