Good afternoon, I'm trying to get the list of selected rows in the DataGrid, however SelectedItem returns only a selected row, not a list of them. =[
I am using Caliburn Micro for MVVM in my WPF project.
---this is my Datagrid---
<DataGrid Margin="5" AutoGenerateColumns="False" VerticalAlignment="Stretch" HorizontalAlignment="Stretch"
CanUserAddRows="False" SelectionMode="Extended" MinHeight="320"
SelectedItem="{Binding Path=SelectedRows, Mode=OneWayToSource}" x:Name="Avisos" SelectionUnit="FullRow">
<DataGrid.Columns>
<DataGridTextColumn Header="Inquilino" Binding="{Binding Inquilino}" MinWidth="150"/>
<DataGridTextColumn Header="Propietário" Binding="{Binding Propietario}" MinWidth="150"/>
<DataGridTextColumn Header="Imovel" Binding="{Binding Imovel}" MinWidth="150"/>
<DataGridTextColumn Header="Data Aviso" Binding="{Binding DataLembrete}" MinWidth="150"/>
<DataGridTextColumn Header="Status" Binding="{Binding Status}" MinWidth="70"/>
<DataGridTextColumn Header="Descrição" Binding="{Binding Descrição}" MinWidth="150" Width="*"/>
</DataGrid.Columns>
<DataGrid>
---This is my list on the ViewModel---
public ObservableCollection<AvisoModel> SelectedRows { get; set; }
---I get this error---
Exceção gerada: 'System.NotSupportedException' em PresentationFramework.dll System.Windows.Data Error: 7 : ConvertBack cannot convert value 'MiniAgendadaTay.Models.AvisoModel' (type 'AvisoModel'). BindingExpression:Path=SelectedRows; DataItem='MainWindowViewModel' (HashCode=10588721); target element is 'DataGrid' (Name='Avisos'); target property is 'SelectedItem' (type 'Object') NotSupportedException:'System.NotSupportedException: CollectionConverter cannot convert from MiniAgendadaTay.Models.AvisoModel. at MS.Internal.Data.DefaultValueConverter.ConvertHelper(Object o, Type destinationType, DependencyObject targetElement, CultureInfo culture, Boolean isForward) at MS.Internal.Data.ObjectTargetConverter.ConvertBack(Object o, Type type, Object parameter, CultureInfo culture) at System.Windows.Data.BindingExpression.ConvertBackHelper(IValueConverter converter, Object value, Type sourceType, Object parameter, CultureInfo culture)'