Filtering with a combobox.

1 replies. Latest Post by Mog Liang - MSFT on July 7, 2009.

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Filtering with a combobox.

07-03-2009 1:49 AM |

I need help to figure out how to filter the data based on a combobox, which holds a collection of countries, and an autocomplete textbox. The textbox works fine, but I cannot make the combobox to work. I am not sure what to use in this line: <riadata:ControlParameter PropertyName="SelectedItem.Content". Below you see the code I have now.

<ria:DomainDataSource.FilterDescriptors >

<riadata:FilterDescriptorCollection LogicalOperator="And">

<riadata:FilterDescriptor PropertyPath="FullName"

Operator="Contains">

<riadata:ControlParameter PropertyName="Text"

RefreshEventName="SelectionChanged"

ControlName="NameFilterBox">

</riadata:ControlParameter>

</riadata:FilterDescriptor>

<riadata:FilterDescriptor PropertyPath="CountryID"

Operator="IsEqualTo">

<riadata:ControlParameter PropertyName="SelectedItem.Content"

RefreshEventName="SelectionChanged"

ControlName="CountryList">

</riadata:ControlParameter>

</riadata:FilterDescriptor>

</riadata:FilterDescriptorCollection>

</ria:DomainDataSource.FilterDescriptors>

Mog Lian...

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Re: Filtering with a combobox.

07-07-2009 5:53 AM |

Your BindingProperty is probably incorrect.

if you initialize your combobox like this

            <ComboBox Name="cb1" SelectionChanged="ListBox_SelectionChanged">
                <ComboBoxItem Content="W"/>
                <ComboBoxItem Content="R"/>
            </ComboBox>

then, set BindingProperty to SelectedItem.Content

or else, if initialize ComboBox by binding a collection to Combobox.ItemsSource, then set BindingProperty to SelectedItem.

Mog Liang
Microsoft Online Community Support

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Filtering with a combobox.

Filtering with a combobox.

Re: Filtering with a combobox.