我有一個 DataGrid，它們的行更新得非?？臁Ｃ啃卸加幸粋€右鍵單擊事件，如果單擊，則應將所選行添加到另一個數據網格中。問題是，當用戶選擇一行以便添加到另一個列表時，由于更新了所選行，他無法添加，因此用戶應該一次又一次地選擇該行。我的代碼是這樣的 <DataGrid SelectionMode="Single" CanUserAddRows="False"CanUserDeleteRows="False" > <DataGrid.Columns> <DataGridTextColumn Header="Data1" Binding="{Binding Path=Data1}"></DataGridTextColumn> <DataGridTextColumn Header="Data2" Binding="{Binding Path=Data2}"></DataGridTextColumn> <DataGridTextColumn Header="Data3" Binding="{Binding Path=Data3}"></DataGridTextColumn> <DataGridTextColumn Header="Data4" Binding="{Binding Path=Data4}"></DataGridTextColumn> <DataGridTextColumn Header="Data5" Binding="{Binding Path=Data5}"></DataGridTextColumn> <DataGridTextColumn Header="Data6" Binding="{Binding Path=Data6}"></DataGridTextColumn> </DataGrid.Columns> <DataGrid.ContextMenu> <ContextMenu HorizontalContentAlignment="Right" FlowDirection="RightToLeft"> <MenuItem Name="addToBlackListMnuBtn" Header="Add to Black List" Click="addToBlackListMnuBtn_Click" FontWeight="Black"/> <MenuItem Name="addtoReportedListMnuBtn" Header="Add to Reported List" Click="addtoReportedListMnuBtn_Click" FontWeight="Black"/> </ContextMenu> </DataGrid.ContextMenu> </DataGrid>當我想從 contexMenu 單擊“addtoReportedListMnuBtn”時，我應該嘗試幾次來執行其事件。通常通過下面的代碼顯示消息框private void addtoReportedListMnuBtn_Click(object sender, RoutedEventArgs e)//add to reported list { ObjClass en = (ObjClass)ActiveSignalDataGrid.SelectedItem; if(en!=null) { ReportSignalsListQ.Data = en; // add to queue for adding }else { MessageBox.Show("Please select again"); } }
2 回答
翻閱古今
TA貢獻1780條經驗 獲得超5個贊
我想說，DataGrid在你的例子中， a 是一個錯誤的地方ContextMenu。將您的ContextMenu資源放入窗口資源并將其用于DataGridCell.
<Window.Resources>
<ContextMenu x:Key="contMen" HorizontalContentAlignment="Right" FlowDirection="RightToLeft">
<MenuItem Name="addToBlackListMnuBtn" Header="Add to Black List" Click="addToBlackListMnuBtn_Click" FontWeight="Black"/>
<MenuItem Name="addtoReportedListMnuBtn" Header="Add to Reported List" Click="addtoReportedListMnuBtn_Click" FontWeight="Black"/>
</ContextMenu>
</Window.Resources>
<DataGrid.Resources>
<Style TargetType="DataGridCell">
<Setter Property="ContextMenu" Value="{StaticResource contMen}"/>
</Style>
</DataGrid.Resources>
private void addtoReportedListMnuBtn_Click(object sender, RoutedEventArgs e)//add to reported list
{
var en = (((sender as MenuItem).Parent as ContextMenu).PlacementTarget as DataGridCell).DataContext as ObjClass;
if (en != null)
{
ReportSignalsListQ.Data = en; // add to queue for adding
}
else
{
MessageBox.Show("Please select again");
}
}
蝴蝶刀刀
TA貢獻1801條經驗 獲得超8個贊
當您ItemSource更新時，SelectedItem您的信息DataGrid將被清除。SelectionChanged因此，您可以向您添加一個事件DataGrid，并且需要將您分配SelectedItem給代碼隱藏中的局部變量，然后將局部變量添加到第二個DataGrid。
- 2 回答
- 0 關注
- 243 瀏覽
添加回答
舉報
0/150
提交
取消