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SelectedItem binding not working

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AutoCompleteBox

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

HCT-CERT asked on 23 Nov 2012, 12:48 PM

Hi,

I am using an AutoCompleteBox inside a RadDataForm template.The control ItemsSource is bound to an ObseravableCollcetion while the selected item is bound to a property on the window.

<DataTemplate x:Key="MyTemplate">

<Grid>

<Grid.RowDefinitions>

<RowDefinition/>

</Grid.RowDefinitions>

<Grid.ColumnDefinitions>

<ColumnDefinition Width="200"/>

<ColumnDefinition Width="*"/>

</Grid.ColumnDefinitions>

<Label Content="Driver" Grid.Row="0"/>

<Label Content="Document Number" Grid.Row="1"/>

<Label Content="Issue Date" Grid.Row="2"/>

<Label Content="Expiry Date" Grid.Row="3"/>

<Label Content="Place of Issue" Grid.Row="4"/>

<Label Content="Document Type" Grid.Row="5"/>

<Label Content="Remarks" Grid.Row="6"/>

<telerik:RadAutoCompleteBox AutoCompleteMode="Suggest"

TextSearchPath="FullName" ItemsSource="{Binding Drivers,ElementName=DriverDocumentView1}" Name="RadAutoCompleteBox" SearchTextChanged="RadAutoCompleteBox_SearchTextChanged" TextSearchMode="Contains" SelectionMode="Single" DisplayMemberPath="Name" SelectedItem="{Binding SelectedDriver,ElementName=DriverDocumentView1}" Grid.Column="1" Grid.Row="0"/>

<TextBox Text="{Binding Document.DocumentNo}" Grid.Row="1" Grid.Column="1"/>

<DatePicker SelectedDate="{Binding IssueDate}" Grid.Row="2" Grid.Column="1"/>

<DatePicker SelectedDate="{Binding ExpiryDate}" Grid.Row="3" Grid.Column="1"/>

<ComboBox ItemsSource="{Binding PlacesOfIssue,ElementName=DriverDocumentView1}" DisplayMemberPath="Text" SelectedValuePath="ID" SelectedValue="{Binding Document.PlaceOfIssueID}" Grid.Column="1" Grid.Row="4"/>

<ComboBox ItemsSource="{Binding DocumentTypes,ElementName=DriverDocumentView1}" DisplayMemberPath="Name" SelectedValuePath="ID" SelectedValue="{Binding Document.DocumentTypeID}" Grid.Column="1" Grid.Row="5"/>

<TextBox Text="{Binding Remarks}" Grid.Row="6" Grid.Column="1"/>

</Grid>

</DataTemplate>

private Driver selectedDriver;

public Driver SelectedDriver

{

get { return selectedDriver; }

set { selectedDriver = value; NotifyPropertyChanged("SelectedDriver"); }

}

Now, the breakpoint I set in the 'set' part of the SelectedDriver property is not hit.I also find it to be null when sending the form data for saving:

private void SaveBTN_Click(object sender, RoutedEventArgs e)

{

if (RadDataForm.ValidateItem())

{

DriverDocument driverDocument = RadDataForm.CurrentItem.To<DriverDocument>();

driverDocument.Document.CreationDate = DateTime.Now;

driverDocument.Document.EntryByID = 178;

driverDocument.Driver = SelectedDriver;

RadDataForm.SubmitChanges();

}

Thanks

Madani

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