c#數據綁定之刪除datatable數據示例

2020-01-24 02:43:02

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c#數據綁定之將datatabel的data添加listView中，簡要的通過代碼應用了DataTable，DataTableColumns,DataTableRow類，通過UI界面的Textbox向DataTable中添加數據然后響應到ListView控件中。在本實例中主要針對如何刪除DataTable的紀錄，并同步到ListView中。

首先，對UI做一些改動，最終界面如下圖所示。主要是在ListView 中添加了CheckBox控件。

在ListView中添加CheckBox 的XAML 代碼：

復制代碼代碼如下:

<GridViewColumn x:Name="gvcSelectAll">
                                <GridViewColumn.Header>
                                    <CheckBox Content="全選" />
                                </GridViewColumn.Header>
                                <GridViewColumn.CellTemplate>
                                    <DataTemplate>
                                        <CheckBox />
                                    </DataTemplate>
                                </GridViewColumn.CellTemplate>
                            </GridViewColumn>

在ListView中Items添加Button 的XAML 代碼：

復制代碼代碼如下:

<GridViewColumn Header="操作">
                                <GridViewColumn.CellTemplate>
                                    <DataTemplate>
                                        <Button Content="刪除" MinWidth="50" Margin="2" Name="btnDelete" Click="btnDelete_Click" CommandParameter="{Binding Path=AutoID}"/>
                                    </DataTemplate>
                                </GridViewColumn.CellTemplate>

其次，對Button添加

復制代碼代碼如下:

Click="btnDelete_Click"

事件，事件的響應的C# 后臺代碼為：

復制代碼代碼如下:

private void btnDelete_Click(object sender, RoutedEventArgs e)
        {
            Button b = sender as Button;
            Int32 AutoID = Convert.ToInt32(b.CommandParameter);
            delMember(Commodity, AutoID);
            lstDisplay.DataContext = Commodity;
            lstDisplay.Items.Refresh();

}

        private DataTable delMember(DataTable Table,Int32 laction)
        {
            //Deleting a existed row in datatable Commodity;
            DataRow delRow = Table.Rows.Find(laction);
            Table.Rows.Remove(delRow);
            return Table;
        }

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