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Bind to User.Settings

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ComboBox

This is a migrated thread and some comments may be shown as answers.

Garry asked on 22 Mar 2010, 03:18 PM

Hey guys,
I am trying to use a RadComboBox to bind to a Specialized.StringCollection in my User.Settings. I am able to load the ComboBox from the collection, but the twoway binding does not seem to work. Is this possible with just stright XAML binding or do I need to create a whole class to accomodate this? I have the twoway binding working for my Window properties so I do know that I appear to have my ResourceDictionary configured correctly. Below is what I have so far.

XAML

<telerikInput:RadComboBox x:Name="comboTheme" ItemsSource="{Binding Source={StaticResource settings}, Path=Default.Theme}"

                        SelectedItem="{Binding Default.Theme, Mode=TwoWay}"/>

App.Config

<userSettings>

    <EliteExtender.Shell.Properties.Settings>

      <setting name="MainWidth" serializeAs="String">

        <value>800</value>

      </setting>

      <setting name="MainHeight" serializeAs="String">

        <value>625</value>

      </setting>

      <setting name="MainState" serializeAs="String">

        <value />

      </setting>

      <setting name="Theme" serializeAs="Xml">

        <value>

          <ArrayOfString xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

            xmlns:xsd="http://www.w3.org/2001/XMLSchema">

            <string>Office_Blue</string>

            <string>Office_Black</string>

            <string>Office_Silver</string>

            <string>Summer</string>

            <string>Vista</string>

            <string>Windows7</string>

          </ArrayOfString>

        </value>

      </setting>

    </EliteExtender.Shell.Properties.Settings>

  </userSettings>

ResourceDictionary (registered in App.Xaml)

<ResourceDictionary

    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

    xmlns:settings="clr-namespace:EliteExtender.Shell.Properties">

    <ResourceDictionary.MergedDictionaries>

        <ResourceDictionary>

            <settings:Settings x:Key="settings" />

        </ResourceDictionary>

    </ResourceDictionary.MergedDictionaries>

</ResourceDictionary>

1 Answer, 1 is accepted

answered on 23 Mar 2010, 10:11 AM

Hello Garry,

RadComboBox should work in such scenarios, I guess that there is a problem with the bindings that are applied on the control. For example, looking at your code snippets, I guess that there is something strange - RadComboBox ItemsSource is bound to a property called Default.Theme, which I guess is some kind of collection; the SelectedItem property is also bound to Default.Theme - I suppose you should be binding to something else, if this property is the same as the ItemsSource's source. A simple application that could be used to observe the problem would be of great help, so I would like to kindly ask you to create one and send it to us through a new support ticket.

Kind regards,
Valeri Hristov
the Telerik team

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