我想要一个仅包含 10 个字符作为最大长度的文本。当我发现普通的 Datagrid textcolumn 没有 maxlength 属性时,我选择了 Template 列。但是对于下面的 xaml 代码。数据未保存回绑定字段并显示旧值。任何人都可以伸出援助之手。
<Grid Background="#FFF0F0F0">
<DataGrid AlternatingRowBackground="#FFE9FFE9" AlternationCount="1" AutoGenerateColumns="False" PreviewKeyDown="DgvDiagramNo_PreviewKeyDown" CanUserAddRows="False" CanUserResizeColumns="False" ColumnHeaderHeight="30" DataContext="{Binding}" Height="482" ItemsSource="{Binding Path=., Mode=TwoWay}" Margin="23,59,0,0" Name="DgvDiagramNo" OverridesDefaultStyle="False" RowHeaderWidth="0" RowHeight="30" ScrollViewer.VerticalScrollBarVisibility="Auto" SelectionMode="Single" SelectionUnit="FullRow" UseLayoutRounding="True" VerticalAlignment="Top" HorizontalAlignment="Left" Width="958" DataGridCell.Selected="DataGrid_select" CanUserReorderColumns="False" CellStyle="{StaticResource Body_Content_DataGrid_Centering}" KeyUp="DgvDiagramNo_KeyUp" BeginningEdit="DgvDiagramNo_BeginningEdit" CellEditEnding="DgvDiagramNo_CellEditEnding" Sorting="DgvDiagramNo_Sorting">
<DataGrid.Columns>
<DataGridTemplateColumn Header="売価" Width="150" MinWidth="100" MaxWidth="100" >
<DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<TextBlock Text="{Binding Path= SellingPrice, Mode=TwoWay}"/>
</DataTemplate>
</DataGridTemplateColumn.CellTemplate>
<DataGridTemplateColumn.CellEditingTemplate >
<DataTemplate>
<TextBox MaxLength="10"/>
</DataTemplate>
</DataGridTemplateColumn.CellEditingTemplate>
</DataGridTemplateColumn>