[英]How to fix “unhandled exception” when clicking on WPF DataGrid?
我在C#4.0中使用Visual Studio 2010,WPF,並且在DataGrid中單擊單元格時遇到以下異常:
An unhandled exception of type 'System.InvalidOperationException' occurred in PresentationFramework.dll Additional information: A TwoWay or OneWayToSource binding cannot work on the read-only property 'Column2' of type 'VindecoderUI.AcesData'.
這是我的代碼:
<DataGrid AutoGenerateColumns="False" Height="190" Name="nadaDataGrid" Width="304" FrozenColumnCount="1000" ItemsSource="{Binding Source={StaticResource nadaDataCollection}}" CanUserReorderColumns="False" CanUserResizeColumns="True" CanUserSortColumns="False" AlternatingRowBackground="#3F000000" CanUserResizeRows="False" SelectionMode="Single" SelectionUnit="Cell"
SelectionChanged="dataGrid1_SelectionChanged" AreRowDetailsFrozen="True" >
<DataGrid.Columns>
<DataGridTextColumn Binding="{Binding Path=NadaSeries}" Header="Nada Series" />
<DataGridTextColumn Binding="{Binding Path=NadaBS}" Header="Nada BS" />
<DataGridTextColumn Binding="{Binding Path=MSRP}" Header="MSRP" />
<DataGridTextColumn Binding="{Binding Path=GVWR}" Header="GVWR" />
<DataGridTextColumn Binding="{Binding Path=GCWR}" Header="GCWR" />
</DataGrid.Columns>
</DataGrid>
<Window.Resources>
<CollectionViewSource x:Key="nadaDataCollection"></CollectionViewSource>
<CollectionViewSource x:Key="acesDataCollection"></CollectionViewSource>
</Window.Resources>
默認情況下, DataGrid
單元格是可編輯的(這意味着綁定是TwoWay
。)由於您綁定的集合包含具有只讀屬性的項目,因此單擊該單元格會出現異常,因為無法進行編輯。
您應該可以通過將Mode=OneWay
添加到該字段的列綁定中來解決此問題。
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.