C# 如何在列表框 wpf 中获取多个选定项目？
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时间：2020-08-10 14:09:48 来源:igfitidea点击:
How to get multiple selected items in listbox wpf?
提问by
I am confused on how to retrieve multi selected values from listbox in wpf.
我对如何从 wpf 中的列表框中检索多选值感到困惑。
In XAML I have the following listbox with selection mode multiple.
在 XAML 中，我有以下带有多个选择模式的列表框。
<ListBox Height="100" HorizontalAlignment="Left" Margin="139,207,0,0" Name="listBox1" VerticalAlignment="Top" Width="120" SelectionChanged="listBox1_SelectionChanged" SelectionMode="Multiple" />
<Button Content="Button" Height="23" HorizontalAlignment="Left" Margin="319,220,0,0" Name="button1" VerticalAlignment="Top" Width="75" Click="button1_Click" />
How do I check in foreach loop now?
我现在如何检查 foreach 循环？
foreach (ListItem li in listBox1.Items)
{
?? // how to check li is selected or not
}
采纳答案by LPL
You will find them in ListBox.SelectedItems.
您将在ListBox.SelectedItems 中找到它们。
foreach (var item in listBox1.SelectedItems)
{
}
回答by Barak Rosenfeld
another example
另一个例子
int j = 0;
for (int i = 0; i < lbItems.Items.Count; i++)
{
if (lbItems.Items[i] == lbItems.SelectedItems[0])
j++;
}
MessageBox.Show(lbItems.Items.IndexOf(lbItems.SelectedItems[0]).ToString()
+ string.Format("\r\nThere are {0} occurences of this object in this list",j) )
