我正在尝试将DataGrid
绑定到List
,以便在列表执行时自动更新。
在我的xaml.cs中:
private DataStorage dataStorage = new DataStorage();
XAML:
<DataGrid Name="DropFilesDataGrid" AutoGenerateColumns="False" ItemsSource="{Binding}">
<DataGrid.Columns>
<DataGridTextColumn x:Name="colFileName" Binding="{Binding fileName}" Header="File Name" />
<DataGridTextColumn x:Name="colFileType" Binding="{Binding fileType}" Header="File Type" />
<DataGridTextColumn x:Name="colFileLocation" Binding="{Binding fileLocation}" Header="File Location" />
</DataGrid.Columns>
</DataGrid>
在DataStorage
课程中:
public List<File> listOfFiles = new List<File>();
和File类:
private string fileName { get; set; }
private long fileSize { get; set; }
private string fileImage { get; set; }
private string fileLocation { get; set; }
private string fileType { get; set; }
我通过以下方式将新文件添加到列表中:
foreach (string fileDropped in files)
{
File file = new File(fileDropped);
dataStorage.AddFileToList(file);
}
列表正在填充这些文件对象,并且属性不为空。
我的问题是让DataGridView
更新吗?
我的错误:
System.Windows.Data Error: 40 : BindingExpression path error: 'fileName' property not found on 'object' ''File' (HashCode=1820782)'. BindingExpression:Path=fileName; DataItem='File' (HashCode=1820782); target element is 'TextBlock' (Name=''); target property is 'Text' (type 'String')
System.Windows.Data Error: 40 : BindingExpression path error: 'fileType' property not found on 'object' ''File' (HashCode=1820782)'. BindingExpression:Path=fileType; DataItem='File' (HashCode=1820782); target element is 'TextBlock' (Name=''); target property is 'Text' (type 'String')
System.Windows.Data Error: 40 : BindingExpression path error: 'fileLocation' property not found on 'object' ''File' (HashCode=1820782)'. BindingExpression:Path=fileLocation; DataItem='File' (HashCode=1820782); target element is 'TextBlock' (Name=''); target property is 'Text' (type 'String')
答案 0 :(得分:1)
使用ObservableCollection<File>
代替List<File>
并使用public
类成员File
。
public ObservableCollection<File> listOfFiles = new ObservableCollection<File>();
和
public string fileName { get; set; }
public long fileSize { get; set; }
public string fileImage { get; set; }
public string fileLocation { get; set; }
public string fileType { get; set; }