c# - 代码优化: Create a method for recurring procedures

Question

我正在尝试优化此代码(针对 C# (WPF) 中的重复过程)。是否有机会创建一种方法来执行所有这些代码？只是聪明一点吗？我不想将此代码复制并粘贴到 DoMyCode() 中。我的问题是，我点击了 20 个 ListViewItems 。每个 ListViewItem 都执行相同的操作(只是使用另一个 Label)。

private void listViewItem_Group0_Selected(object sender, RoutedEventArgs e)
{
    label_Position.Content = label_Group0.Content.ToString();
    SetDataGridItems(label_Group0.Content.ToString());
}

private void listViewItem_Group1_Selected(object sender, RoutedEventArgs e)
{
    label_Position.Content = label_Group1.Content.ToString();
    SetDataGridItems(label_Group1.Content.ToString());
}

private void listViewItem_Group2_Selected(object sender, RoutedEventArgs e)
{
    label_Position.Content = label_Group2.Content.ToString();
    SetDataGridItems(label_Group2.Content.ToString());
}

private void listViewItem_Group3_Selected(object sender, RoutedEventArgs e)
{
    label_Position.Content = label_Group3.Content.ToString();
    SetDataGridItems(label_Group3.Content.ToString());
}

private void listViewItem_Group4_Selected(object sender, RoutedEventArgs e)
{
    label_Position.Content = label_Group4.Content.ToString();
    SetDataGridItems(label_Group4.Content.ToString());
}

我的 XAML 代码如下所示:

<ListViewItem Selected="listViewItem_Group0_Selected">
    <DockPanel>
        <Image Source="/Apptivities;component/Images/interessenten_.png" Stretch="None" />
        <Label Content="Interessenten Sponsoren" Name="label_Group0" />
    </DockPanel>
</ListViewItem>
<ListViewItem Selected="listViewItem_Group1_Selected">
    <DockPanel>
        <Image Source="/Apptivities;component/Images/interessenten_.png" Stretch="None" />
        <Label Content="Interessenten Teilnehmer" Name="label_Group1" />
    </DockPanel>
</ListViewItem>
<ListViewItem Selected="listViewItem_Group2_Selected">
    <DockPanel>
        <Image Source="/Apptivities;component/Images/keine_kooperation.png" Stretch="None" />
        <Label Content="Keine Kooperation" Name="label_Group2" />
    </DockPanel>
</ListViewItem>
<ListViewItem Selected="listViewItem_Group3_Selected">
    <DockPanel>
        <Image Source="/Apptivities;component/Images/potenzielle_.png" Stretch="None" />
        <Label Content="Potenzielle Sponsoren" Name="label_Group3" />
    </DockPanel>
</ListViewItem>
<ListViewItem Selected="listViewItem_Group4_Selected">
    <DockPanel>
        <Image Source="/Apptivities;component/Images/potenzielle_.png" Stretch="None" />
        <Label Content="Potenzielle Teilnehmer" Name="label_Group4" />
    </DockPanel>
</ListViewItem>

你知道如何做到这一点吗？

Answer 1

您的所有代码都可以基于发送者对象以一种方法轻松转换

 private void listViewItem_Group_Selected(object sender, RoutedEventArgs e)
        {
            ListViewItem lv = sender as ListViewItem;
            DockPanel dockpanel = (lv.Content) as DockPanel;
            Label label = (dockpanel.Children[1]) as Label;
            label_Position.Content = label.Content.ToString();
            SetDataGridItems(label.Content.ToString());

        }

将所有 Selected 事件更改为公共(public)事件“listViewItem_Group_Selected”，并且由于 DockPanel 是 ListViewItem 的子控件，因此可以通过迭代 DockPanel 子控件来读取 Label。