在WPF中将组合框与大量数据绑定 [英] Bind Combobox with huge data in WPF

问题描述

我正在尝试将组合框与自定义对象列表绑定.我的对象列表有大约15,000条记录，单击组合框后，组合框需要很长时间才能显示数据.

I am trying to bind combobox with custom object list. My object list have around 15K record and combobox takes long time to show the data after clicking on combobox.

下面是代码:

<ComboBox Height="23" Name="comboBox1" Width="120" DisplayMemberPath="EmpName" SelectedValue="EmpID" VirtualizingStackPanel.IsVirtualizing="True" VirtualizingStackPanel.VirtualizationMode="Recycling"/>

后面的代码:

List<EmployeeBE> allEmployee = new List<EmployeeBE>();
allEmployee = EmployeeBO.GetEmployeeAll();
 comboBox1.ItemsSource = allEmployee;

allEmployee大约有1.5万条记录. 谁能建议我如何改善组合框性能?

allEmployee have around 15K record. Can any one Suggest how can I improve my combobox performance?

推荐答案

您可以按此处所述尝试VirtualizingStackPanel-

You could try a VirtualizingStackPanel as described here - http://vbcity.com/blogs/xtab/archive/2009/12/15/wpf-using-a-virtualizingstackpanel-to-improve-combobox-performance.aspx

正如其他人所说，您真的想重新定义您的UI，因为ComboBox不适合15,000条记录.

As others have said, you really want to re-imagine your UI, as a ComboBox isn't appropriate for 15k records.

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