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我用RowEditEnding事件DataGrid中獲得更新的行和回報TextBlock的在C#中RowEditEnding得到一個空值在DataGrid中
private void OnUpdateOrInsertItem(object sender,DataGridRowEditEndingEventArgs e)
{
DataGridRow row1 = e.Row;
int row_index = ((DataGrid)sender).ItemContainerGenerator.IndexFromContainer(row1);
int numberOfColumns = ((DataGrid)sender).Columns.Count;
DataGridCell RowColumn = ((DataGrid)sender).Columns[1].GetCellContent(row1).Parent as DataGridCell;
string CellValue = ((TextBlock)RowColumn.Content).Text;
MessageBox.Show(CellValue);
}
更新我的數據庫,但是當我改變細胞,我打印出來的消息框,它在messageBox上返回一個空值。 我認爲有關線程 的問題,這是我的XML代碼
<Grid>
<DataGrid x:Name="datagrid1" AutoGenerateColumns="true" HorizontalAlignment="Left" Margin="0,55,0,0" VerticalAlignment="Top" Height="248" Width="672" RowEditEnding="OnUpdateOrInsertItem" PreviewKeyDown="OnDeleteItem"/>
<Button Content="Show Database" HorizontalAlignment="Left" Margin="54,10,0,0" VerticalAlignment="Top" Width="98" RenderTransformOrigin="-0.193,-13.506" Height="29" Click="Button_Click_1"/>
<ComboBox x:Name="comboBox1" SelectedIndex="0" HorizontalAlignment="Left" Margin="469,17,0,0" VerticalAlignment="Top" Width="120" Loaded="ComboBox_Loaded"
SelectionChanged="ComboBox_SelectionChanged"/>
</Grid>
我怎麼能解決這個問題,如果有另一種方式在RowEditEnding事件獲得更新的行?