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PO
 

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  1. PO
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    <p>Set MyCb.SelectedItem to null before NameOptions is updated. SelectedItem supersedes Text and when the ItemsSource is updated it will also try to update the Text supposedly connected to the SelectedItem.</p> <pre><code>public partial class MainWindow : Window, INotifyPropertyChanged { public List&lt;String&gt; NameOptions { get { MyCb.SelectedItem = null; // &lt;--- THIS is the solution. just try it! List&lt;String&gt; result = new List&lt;String&gt;(); result.Add(String.Format("{0} {1}", FirstName, LastName)); result.Add(String.Format("{1}, {0}", FirstName, LastName)); result.Add(String.Format("{1}, {0} MI", FirstName, LastName)); return result; } } public event PropertyChangedEventHandler PropertyChanged; public MainWindow() { InitializeComponent(); } private String _theName; public String TheName { get { return _theName; } set { _theName = value; PropertyChangedEventHandler handler = PropertyChanged; if (handler != null) { handler(this, new PropertyChangedEventArgs("TheName")); } } } private String _firstName; public String FirstName { get { return _firstName; } set { _firstName = value; PropertyChangedEventHandler handler = PropertyChanged; if (handler != null) { handler(this, new PropertyChangedEventArgs("NameOptions")); handler(this, new PropertyChangedEventArgs("FirstName")); } } } private String _lastName; public String LastName { get { return _lastName; } set { _lastName = value; PropertyChangedEventHandler handler = PropertyChanged; if (handler != null) { handler(this, new PropertyChangedEventArgs("NameOptions")); handler(this, new PropertyChangedEventArgs("LastName")); } } } } </code></pre>
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    1. POPrevent WPF combobox clearing selection when itemssource changes
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    1. USthomiel
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    1. COUnless I misunderstood, this suggestion still clears the displayed value in the combobox. Thanks for trying, but it appears that my bindings are correct and this is how the combobox is designed to work.
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      1. USc_manboy
    2. COYour code is not quite textbook-like with raising the property changed notification of the combobox's list from another property. Why do you think that this solution still clears the code? Haven't you even tied? I was able to reproduce the behavior you described and discovered that if you never select an item from the list and you enter a freestyle name in the edit field, changing first and last name didn't harm the content of the combobox's edit field. But once you select an item, it will override the edit field's content -- even when the ItemsSource is being rebuilt. Attached my C# code.
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      1. USthomiel
    3. COBeen out for a while....I tried your suggestion before posting, and tried again just to make sure. Still doesn't work. Since this behavior seems to be by design I was going to mark your first answer as the answer, but I do not see it anymore.
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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