Question

更新数据网格内的值的最佳方法是什么 - 以编程方式？我正在使用以下代码并且卡住了。以下行给出错误： drv [＆＃34; bill_total＆＃34;] = list_BillTotals [i];或使用索引：这是第6列 drv [5] = list_BillTotals [i];

说：无法设置bill_total或找不到列号。 5

DataSet dataset = m_billMaster.getAllBills（）; dg_bills.DataContext = dataset;

        List<double> list_BillTotals = m_billMaster.getAllBillTotals();

        DataRowView drv;

        for (int i = 0; i < list_BillTotals.Count; i++)
        {
            drv =  ((DataRowView)dg_bills.Items[i]);

            if (drv != null)
            {
                drv["bill_total"] = list_BillTotals[i];
            }
        }

我的XAML看起来像这样：

        <DataGrid x:Name="dg_bills" 
                  Grid.Row="1" 
                  IsReadOnly="True" 
                  ItemsSource="{Binding Path=bill_master}"
                  AutoGenerateColumns="False"
                  SelectionChanged="dg_SelectionChanged">
            <DataGrid.Columns>
                <DataGridTextColumn Header="#" Binding="{Binding RelativeSource={RelativeSource AncestorType=DataGridRow}, Converter={local:RowToIndexConverter}}"/>
                <DataGridTextColumn Header="Customer" Binding="{Binding Path=bill_customer}"/>
                <DataGridTextColumn Header="Bill No." Binding="{Binding Path=bill_billNum}"/>
                <DataGridTextColumn Header="Bill Date" Binding="{Binding Path=bill_billDate, StringFormat=\{0:dd-MM-yyyy\}}"/>
                <DataGridTextColumn Header="Transports(#)" Binding="{Binding Path=bill_numTrns}"/>
                <DataGridTextColumn Header="Bill Total" Binding="{Binding Path=bill_total}" />
                <DataGridTextColumn Header="Created At" Binding="{Binding Path=bill_createDate, StringFormat=\{0:dd-MM-yyyy\}}"/>
            </DataGrid.Columns>
        </DataGrid>

请分享您的知识和经验。随时欢迎任何建议。提前谢谢。

无法在WPF中的datagrid中设置值

0 个答案: