使用 C# 选择列表框中的项目
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Selecting items in a listbox using C#
提问by Anand Shah
I am using two ListBox controls in my WPF window that are identical (identical = ItemSourceof both the ListBox is same and so they look same) and the selection mode on both the ListBoxes is set to Multiple.
我在 WPF 窗口中使用了两个相同的 ListBox 控件（两个 ListBox 的相同 =ItemSource相同，因此它们看起来相同）并且两个 ListBox 上的选择模式都设置为 Multiple。
Lets call the ListBoxes LB1and LB2for the time being, now when I click an item in LB1, I want the same item in LB2to get selected automatically i.e if I select 3 items in LB1 using either Shift+Clickor Ctrl+Clickthe same items in LB2get selected.
让我们调用列表框LB1和LB2暂时，现在当我点击一个项目LB1，我想在同一个项目LB2得到自动选择，即如果我选择LB1 3项使用任一Shift+Click或Ctrl+Click在同一个项目LB2得到选择。
Have dug the Listbox properties like SelectedItems, SelectedIndexetc but no luck.
挖列表框的属性，如SelectedItems，SelectedIndex等，但没有运气。
采纳答案by Arcturus
Place a SelectionChanged event on your first listbox
在您的第一个列表框上放置一个 SelectionChanged 事件
LB1.SelectionChanged += LB1_SelectionChanged;
Then implement the SelectionChanged method like so:
然后像这样实现 SelectionChanged 方法：
void LB1_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
LB2.SelectedItems.Clear();
foreach(var selected in LB1.SelectedItems)
{
LB2.SelectedItems.Add(selected);
}
}
回答by RvdK
Did you try SetSelected?
你试过 SetSelected 吗？
listBox2.SetSelected(1, True)
You can use it like this
你可以像这样使用它
private void DoLB2Selection()
{
// Loop through all items the ListBox.
for (int x = 0; x < listBox1.Items.Count; x++)
{
// Determine if the item is selected.
if(listBox1.GetSelected(x) == true)
// Deselect all items that are selected.
listBox2.SetSelected(x,true);
}
use the selected items from LB1 as a index in LB2
使用从 LB1 中选择的项目作为 LB2 中的索引
