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POHow can I populate my second combobox based on other combobox selected item
 

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  1. POHow can I populate my second combobox based on other combobox selected item
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    <p>My Question is i want to see my artist combobox selected artist related albums in my albums combobox.</p> <p>I found out code example on this site and it is similar to my problem:</p> <p>but I didn't understand how we get the SelectedArtist value. I pluged this code and test it it keeps giving me null ... I tried to assign artistName to SelectedArtist from the lists of Artits I have but that wasn't successfull: </p> <p>Can some one help me how i can find the SelectedArtist value before i check if its null or not</p> <p>I currently have a ComboBox which is populated with Artist names and I need to bind it to another comboBox of albums once the Artist is selected. </p> <p>These are set up as follows in my view: XAML</p> <pre><code>&lt;ComboBox Height="23" HorizontalAlignment="Left" Margin="65,81,0,0" Name="comboBox1" ItemsSource="{Binding Artists}" SelectedItem="{Binding SelectedArtist}" VerticalAlignment="Top" Width="120" /&gt; &lt;ComboBox Height="23" HorizontalAlignment="Left" Margin="65,115,0,0" Name="comboBox2" VerticalAlignment="Top" ItemsSource="{Binding Albums}" SelectedItem="{Binding SelectedAlbums}" Width="120" /&gt; private void initialiseArtists() { MusicDataClassesDataContext dataClasses = new MusicDataClassesDataContext(); artistList = (from m in dataClasses.tblArtists select m.ArtistName).ToList(); } public List&lt;String&gt; Artists { get { return this.artistList; } } public List&lt;String&gt; Albums { set { initialiseAlbums(); } get { return this.albumList; } } public string SelectedArtist { set { this.selectedArtist = value; initialiseAlbums(); } } private void initialiseAlbums() { if (selectedArtist != null) { MusicDataClassesDataContext dataClasses = new MusicDataClassesDataContext(); var getArtist = dataClasses.tblArtists.FirstOrDefault(band =&gt; band.ArtistName== selectedArtist); albumList = (from album in dataClasses.tblAlbums where album.ArtistID == getArtist.ArtistID select album.AlbumName).ToList(); OnPropertyChanged("Albums"); } } public event PropertyChangedEventHandler PropertyChanged; private void OnPropertyChanged(string propertyName) {if (PropertyChanged != null) PropertyChanged(this, new PropertyChangedEventArgs(propertyName));} </code></pre>
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    1. PO
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      1. PTAnswer
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    1. USFederico Berasategui
    1. USEda
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    1. VO
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      1. POHow can I populate my second combobox based on other combobox selected item
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    1. COCan't you use associative arrays? (I don't know WPF, that's why I'm asking)
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      1. POHow can I populate my second combobox based on other combobox selected item
      1. USSaintLike
    2. COWPF doesn't support binding to properties with no public `get` and `set`. Create these accessors for all properties.
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      1. POHow can I populate my second combobox based on other combobox selected item
      1. USFederico Berasategui
    3. COWhich line in the code did you check that SelectedArtist is null ?
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      1. POHow can I populate my second combobox based on other combobox selected item
      1. USJatin
 

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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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