WPF DataGrid滚动条冻结 [英] Wpf datagrid scrollbar freezes

问题描述

我是WPF的新手.我有一个大约10000行的数据网格.为了实现搜索和突出显示功能，实现了以下代码

I am new to WPF. I have a datagrid that has around 10000 rows. To implement search and highlight functionality,the following code is implemented

<Style x:Key="DefaultCell" TargetType="{x:Type DataGridCell}">
            <Setter Property="Template">
                <Setter.Value>
                        <ControlTemplate TargetType="DataGridCell">

                        <local:CustomTextBlock Text="{Binding RelativeSource={RelativeSource TemplatedParent},Path=Content.Text}">
                            <!--InlineCollection="{Binding ., Converter={StaticResource StringToXamlConverter} }"/>-->
                            <local:CustomTextBlock.InlineCollection>
                              <MultiBinding Converter="{StaticResource StringToXamlConverter}">
                                    <Binding RelativeSource="{RelativeSource Self}" Path="." />
                                    <Binding RelativeSource="{RelativeSource Self}" Path="(local:SearchOperations.SearchTerm)"/>
                                </MultiBinding>
                            </local:CustomTextBlock.InlineCollection>                                
                        </local:CustomTextBlock>                     
                    </ControlTemplate>
                </Setter.Value> 
            </Setter>   

搜索和突出显示就像一个超级按钮一样工作，但是单击垂直滚动条会冻结整个网格.这可能是什么原因?

The search and highlight is working like a charm.But on click of the vertical scrollbar entire grid freezes. What could be the reason here?

推荐答案

您可以在 Binding 上使用 IsAsync 属性.

<Binding RelativeSource="{RelativeSource Self}" Path="." IsAsync="True"/>

这将强制您的绑定发生在不同的线程上，从而使您的UI免于冻结.但是，由于您有很多行，这可能需要一段时间，所以我建议您也使用 FallbackValue .

This will force your bindings to take place on a different thread, freeing up your UI from freezing. However, as you have lots of rows, this may take a while, so I would advise making use of FallbackValue too.

<Binding RelativeSource="{RelativeSource Self}" Path="." IsAsync="True" FallbackValue="..."/>

这将在异步过程进行时提供一个值，典型值是文本，例如正在加载..."消息.

This will provide a value while the asynchronous process is taking place, a typical value would be text, such as a "Loading..." message.

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