本文介绍了WPF：应用程序正在被绞死。不知道为什么？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述 29岁程序员，3月因学历无情被辞！ 大家好， 我有一个程序打开excel并检查给定表单中的链接是否断开。我想向用户显示给定链接列表以及哪些链接已损坏。我想将前景改为RED。我已将值绑定到observablecollection，集合只是字符串集合（WEB LINKS）并且工作正常。逻辑运行良好。 与列表视图绑定的部分也正常工作。 现在我想改变颜色URL的'破坏了RED。到现在为止，我没有成功。我在搜索时尝试了很少的代码。并更改了XAML。 现在应用程序在代码运行时挂起。特别是当它检查网站时。 原谅我正在学习的糟糕编码 XAML： - < Window x：Class =URLValide.MainWindow xmlns =http://schemas.microsoft.com/winfx/2006/xaml/presentation xmlns： x =http://schemas.microsoft.com/winfx/2006/xaml xmlns：d =http://schemas.microsoft.com/expression/blend/2008 xmlns： Local =clr-namespace：URL_Validater.URLValide Title =URL ValidatorHeight =269Width =525FontSize =13 ResizeMode =NoResize> < Window.Resources> < ResourceDictionary> < Style x：Key =HighLightTargetType ={x：Type Control}> < Setter Property =BackgroundValue =Honeydew/> < Style.Triggers> < Trigger Property =IsFocusedValue =True> < Setter Property =Effect> < Setter.Value> < DropShadowEffect BlurRadius =40Color =BeigeDirection =50Opacity =0.5/> < /Setter.Value> < / Setter> < Setter Property =BackgroundValue =White/> < Setter Property =FontWeightValue =UltraBlack/> < / Trigger> < /Style.Triggers> < / Style> <！ - < Style TargetType ={x：Type ListViewItem}> < Style.Triggers> < DataTrigger Binding ={Binding ColorIndx}Value =True> < Setter Property =BackgroundValue =Red/> < Setter Property =ForegroundValue =White/> < / DataTrigger> < /Style.Triggers> < / Style> - > < / ResourceDictionary> < /Window.Resources> < DockPanel LastChildFill =True> < Label DockPanel.Dock =TopName =WinHeaderHeight =30Background =BurlyWoodFontFamily =CalibriFontSize =20FontWeight =BoldFontStretch =MediumVerticalAlignment =TopHorizontalAlignment =StretchMargin =0,0,0,0HorizontalContentAlignment =CenterVerticalContentAlignment =Top> URL Validator< / Label> < Grid DockPanel.Dock =Bottomremoved =Beige> < Grid.ColumnDefinitions> < ColumnDefinition Width =auto/> < ColumnDefinition Width =auto/> < ColumnDefinition Width =auto/> < /Grid.ColumnDefinitions> < Grid.RowDefinitions> < RowDefinition Height =20MaxHeight =30/> < /Grid.RowDefinitions> < TextBlock Grid.Column =0Text =当前网址：>< / TextBlock> < TextBlock Grid.Column =1Text ={Binding strCrnUrl，UpdateSourceTrigger = PropertyChanged}Width =370>< / TextBlock> < TextBlock Grid.Column =2Text ={Binding strTotlOf，UpdateSourceTrigger = PropertyChanged}HorizontalAlignment =LeftVerticalAlignment =Center>< / TextBlock> < / Grid> < Grid DockPanel.Dock =RightWidth =154> < Grid.ColumnDefinitions> < ColumnDefinition MaxWidth =300Width =19 */> < /Grid.ColumnDefinitions> < Grid.RowDefinitions> < RowDefinition MaxHeight =55MinHeight =10Height =35 */> < RowDefinition Height =165 *MinHeight =10/> < /Grid.RowDefinitions> < Label Name =LbleRightBorderBrush =BlackBorderThickness =1Margin =0,2FontSize =13Content =URL列表'的高度= 30Grid.ColumnSpan =2Grid.Row =0>< / Label> < ListView Grid.Row =1removed =AzureItemsSource ={Binding strPdfLst}IsEnabled =TrueMargin =4,0,0,1Foreground ={Binding ColorIndx} > < / ListView> < / Grid> < Grid DockPanel.Dock =Left> < Grid.ColumnDefinitions> < ColumnDefinition Width =100 */> < /Grid.ColumnDefinitions> < Grid.RowDefinitions> < RowDefinition Height =30 */> < RowDefinition Height =60 */> < /Grid.RowDefinitions> < Label BorderBrush =BlackName =lblFleSelBorderThickness =1Height =27Margin =2,2,0,30HorizontalAlignment =LeftWidth =349>选择包含URL列表的文件：< / Label> < TextBox Name =txtbxFleNmeBorderBrush =BlackBorderThickness =1Margin =2,34,0,0Style ={StaticResource ResourceKey = HighLight}HorizontalAlignment =LeftWidth = 272 >< /文本框> < Button Name =btnFleSlecWidth =69Height =27Content =BrowseHorizontalAlignment =CenterVerticalAlignment =CenterMargin =276,32,4,0> < /按钮> < Grid Grid.Row =1Height =118HorizontalAlignment =LeftMargin =0,1,0,0Name =OptionGridVerticalAlignment =TopGrid.RowSpan = 2\" > < StackPanel HorizontalAlignment =LeftVerticalAlignment =TopOrientation =Horizontal> < Border BorderBrush =BlackBorderThickness =1Height =117Margin =3,1,0,0HorizontalAlignment =StretchWidth =350> < Grid Height =autoHorizontalAlignment =StretchWidth =335> < Grid.RowDefinitions> < RowDefinition Height =10 */> < RowDefinition Height =10 */> < RowDefinition Height =10 */> < RowDefinition Height =10 */> < RowDefinition Height =10 */> < /Grid.RowDefinitions> < CheckBox Name =chkboxHasVerticalAlignment =CenterHorizontalAlignment =Center>具有列标题< / CheckBox> < Label Name =lblDescHeight =autoMargin =0,0,204,0Grid.Row =1HorizontalContentAlignment =RightVerticalAlignment =Top>描述列：< /标签> < ComboBox Grid.Row =1Name =cmboxDescolMargin =131,0,0,0Style ={StaticResource ResourceKey = HighLight}>< / ComboBox> < Label Name =lblUrlColHeight =autoGrid.Row =2Margin =0,0,204,0HorizontalContentAlignment =Right> URL'的列：< / Label> ; < ComboBox Name =cmboxUrlColGrid.Row =2Margin =131,0,0,0Style ={StaticResource ResourceKey = HighLight}>< / ComboBox> < Label Name =lblResColHeight =autoGrid.Row =3Margin =0,0,196,0HorizontalContentAlignment =Right> Result Column：< / Label> < ComboBox Name =cmboxResColGrid.Row =3Margin =131,0,0,0Style ={StaticResource ResourceKey = HighLight}>< / ComboBox> < Button Grid.Row =4HorizontalAlignment =CenterVerticalAlignment =CenterContent =Validate URL linksName =btnValidate>< / Button> < Button Grid.Row =4HorizontalAlignment =CenterVerticalAlignment =CenterContent =StartName =btnstrtMargin =244,0,56,0>< /按钮> < / Grid> < / Border> < / StackPanel> < / Grid> < / Grid> < / DockPanel> < / Window> VB.net类： - Imports Microsoft Imports Microsoft Imports 系统 Imports System.Net Imports System.Data Imports System.Windows Imports System.Windows.Forms Imports Excel = Microsoft.Office.Interop.Excel Imports System.Collections.ObjectModel Imports System.ComponentModel 命名空间 URLValide 公共 类 clsUrlCheck 实施 INotifyP ropertyChanged 公共 事件 propertyChanged 正如 PropertyChangedEventHandler Implements INotifyPropertyChanged.PropertyChanged 公共 exclApplic 作为 新 Excel.Application 公开 exclWkbOpe As Excel.Workbook 公共 exclWksAct As Excel.Worksheet Public exclRngUrl As Excel.Range Public exclRngDes As Excel.Range Public exclRngOut A. s Excel.Range 公共 intMaxRow 作为 长 公共 intCrtRow 作为 长 私有 _strTotlOf 作为 String Private _strCrnUrl As String Private _ColorIndx As SolidColorBrush Private _strPdfLst As ObservableCollection（ 字符串） 私有 _strhdrPdf As ObservableCollection（ Of String ） ＃Regionpoperties的区域 公共 属性 strTotlOf（）作为 字符串 获取 返回 _strTotlOf 结束 获取 设置（ ByVal 值 As String ） _strTotlOf = value Me .OnPropertyChanged( strTotlOf） 结束 设置 结束 属性 公共 属性 strCrnUrl（）作为 字符串 获取 返回 _strCrnUrl 结束 获取 设置（ ByVal 值作为 字符串） _strCrnUrl = value 我。 OnPropertyChanged（ strCrnUrl） End 设置 结束 属性 公共 属性 strPdfLst As ObservableCollection（ Of String ） 获取 返回 _strPdfLst 结束 获取 设置（ ByVal 值 As ObservableCollection（ Of String ）） _strPdfLst = value Me .OnPropertyChanged（ strPdfLst） 结束 设置 结束 财产 Public Property strhdrPdf As ObservableCollection（ Of 字符串） 获取 返回 _strhdrPdf 结束 获取 Set （ ByVal value As ObservableCollection（ String ）） _strhdrPdf = value Me .OnPropertyChanged（ strhdrPdf） 结束 设置 结束 属性 公共 属性 ColorIndx 作为 SolidColorBrush 获取 返回 _ColorIndx 结束 获取 设置（ ByVal 值 As SolidColorBrush） _ColorIndx = value 我 .OnPropertyChanged（ ColorIndx） 结束 设置 结束 物业 私有 Sub OnPropertyChanged（ ByVal propertyName 作为 字符串） RaiseEvent propertyChanged （ Me ，新 PropertyChangedEventArgs（propertyName）） 结束 Sub #End Region ＃Region验证URL的功能 公共 功能 UrlCheck（ ByVal strUrlReq As 字符串） 尝试 Dim WebReq As Net.HttpWebRequest = Net.HttpWebRequest.Create（strUrlReq） WebReq.Method = Head WebReq.Timeout = 5000 使用 Response = WebReq.GetResponse（） 返回 True 结束 使用 Catch ex 作为例外 ColorIndx = 新 SolidColorBrush（Colors.Red） 返回 错误 结束 尝试 结束 功能 #End Region #RegionStart Funtion Sub suStart（） 如果 exclRngDes.Value = Make Desc 然后 strPdfLst = makeList（exclRngUrl.Column， True ） exclRngDes.Delete（） 其他 strPdfL st = makeList（exclRngUrl.Column， False ） 结束 如果 Dim blnValid As 布尔值 对于 每个 exclRngEch 作为 Excel.Range 在 exclRngUrl strCrnUrl = exclRngEch.Text strTotlOf = exclRngEch.Row& ; OF& intMaxRow blnValid = UrlCheck（exclRngEch.Value.ToString） 如果 blnValid 那么 exclWksAct.Cells（exclRngEch.Row，exclRngOut.Column）.value = Web Page Present 其他 exclWksAct.Cells（exclRngEch.Row，exclRngOut.Column）.value = 网页错误 结束 如果 下一步 结束 Sub 功能 makeList（ ByVal intColNum 作为 长， ByVal blnMkeStr As 布尔）作为 ObservableCollection（ String ） Dim ObsColTem As ObservableCollection （ 字符串）= 新 ObservableCollection（ 字符串） 如果 不 blnMkeStr 然后 For intLopCnt As Int32 = intCrtRow To i ntMaxRow ObsColTem.Add（exclWksAct.Cells（intLopCnt，intColNum）.Text） Next 否则 对于 intLopCnt 作为 Int32 = intCrtRow intMaxRow Dim strDesc As String = Mid（exclWksAct.Cells（intLopCnt，intColNum）.Text，InStrRev（exclWksAct.Cells（intLopCnt，intColNum） .Text， / ,, CompareMethod.Text）+ 1 ） ObsColTem.Add（strDesc） 下一步 结束 如果 返回 ObsColTem 结束 功能 #End Region 结束 类 结束 命名空间 很抱歉，如果我不清楚的话。 代码运行正常，我得到了输出。 代码没有冻结或停止执行。但WPF表单窗口正在BLANK。 就像你一步一步调试一样，你会看到一个空白的白色窗口仪式。就像它即将到来。当执行完成时，窗口变为活动状态并正确显示相关输出。事件，Excel更新。 所以代码很好。解决方案 你的假设是正确的 HttpWebRequest .GetResponse 可以冻结用户界面并造成一些麻烦。看看你的代码：你正在使用5秒超时;这意味着您的UI线程可能会挂起5秒钟。我不是说这是唯一的问题，但这是你在UI线程中永远不应该做的事情之一。您必须有一个单独的线程并在那里进行检查，就像阻止任何其他阻塞，可能阻塞调用或持久操作一样。使用单独的线程，您可能还需要使用 Dispatcher 进行线程同步和/或UI线程调用。 -SA Hi all, i have a program which opens excel and check for broken links in the given sheet. i want to display the user the list of given links and which ever is broken. i want to change foreground to RED. i have bound the values to observablecollection, the collection is just collection of strings(WEB LINKS) and is working fine. the logic is working good.the part of binding with the list view is also working.now i am trying to change the color of the URL''s which are broke to RED. till now i am unsuccessful. and i tried few codes got when searching. and changed the XAML.now the application is hanging when the code runs. particularly when it is checking for the websites.Forgive my bad codding i am learningXAML:-<Window x:Class="URLValide.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:Local="clr-namespace:URL_Validater.URLValide" Title="URL Validator" Height="269" Width="525" FontSize="13" ResizeMode="NoResize"> <Window.Resources> <ResourceDictionary> <Style x:Key="HighLight" TargetType="{x:Type Control}"> <Setter Property="Background" Value="Honeydew"/> <Style.Triggers> <Trigger Property="IsFocused" Value="True"> <Setter Property="Effect"> <Setter.Value> <DropShadowEffect BlurRadius="40" Color="Beige" Direction="50" Opacity="0.5"/> </Setter.Value> </Setter> <Setter Property="Background" Value="White"/> <Setter Property="FontWeight" Value="UltraBlack"/> </Trigger> </Style.Triggers> </Style> <!--<Style TargetType="{x:Type ListViewItem}"> <Style.Triggers> <DataTrigger Binding="{Binding ColorIndx}" Value="True"> <Setter Property="Background" Value="Red"/> <Setter Property="Foreground" Value="White"/> </DataTrigger> </Style.Triggers> </Style>--> </ResourceDictionary> </Window.Resources> <DockPanel LastChildFill="True"> <Label DockPanel.Dock="Top" Name="WinHeader" Height="30" Background="BurlyWood" FontFamily="Calibri" FontSize="20" FontWeight="Bold" FontStretch="Medium" VerticalAlignment="Top" HorizontalAlignment="Stretch" Margin="0,0,0,0" HorizontalContentAlignment="Center" VerticalContentAlignment="Top">URL Validator</Label> <Grid DockPanel.Dock="Bottom" removed="Beige"> <Grid.ColumnDefinitions> <ColumnDefinition Width="auto"/> <ColumnDefinition Width="auto"/> <ColumnDefinition Width="auto"/> </Grid.ColumnDefinitions> <Grid.RowDefinitions> <RowDefinition Height="20" MaxHeight="30"/> </Grid.RowDefinitions> <TextBlock Grid.Column="0" Text="Current URL:"></TextBlock> <TextBlock Grid.Column="1" Text="{Binding strCrnUrl, UpdateSourceTrigger=PropertyChanged}" Width="370"></TextBlock> <TextBlock Grid.Column="2" Text="{Binding strTotlOf, UpdateSourceTrigger=PropertyChanged}" HorizontalAlignment="Left" VerticalAlignment="Center"></TextBlock> </Grid> <Grid DockPanel.Dock="Right" Width="154"> <Grid.ColumnDefinitions> <ColumnDefinition MaxWidth="300" Width="19*" /> </Grid.ColumnDefinitions> <Grid.RowDefinitions> <RowDefinition MaxHeight="55" MinHeight="10" Height="35*" /> <RowDefinition Height="165*" MinHeight="10" /> </Grid.RowDefinitions> <Label Name="LbleRight" BorderBrush="Black" BorderThickness="1" Margin="0,2" FontSize="13" Content="List Of URL''s" Height="30" Grid.ColumnSpan="2" Grid.Row="0"></Label> <ListView Grid.Row="1" removed="Azure" ItemsSource="{Binding strPdfLst}" IsEnabled="True" Margin="4,0,0,1" Foreground="{Binding ColorIndx}"> </ListView> </Grid> <Grid DockPanel.Dock="Left"> <Grid.ColumnDefinitions> <ColumnDefinition Width="100*"/> </Grid.ColumnDefinitions> <Grid.RowDefinitions> <RowDefinition Height="30*" /> <RowDefinition Height="60*" /> </Grid.RowDefinitions> <Label BorderBrush="Black" Name="lblFleSel" BorderThickness="1" Height="27" Margin="2,2,0,30" HorizontalAlignment="Left" Width="349">Select File To which Contains the list of URL''s:</Label> <TextBox Name="txtbxFleNme" BorderBrush="Black" BorderThickness="1" Margin="2,34,0,0" Style="{StaticResource ResourceKey=HighLight}" HorizontalAlignment="Left" Width="272"></TextBox> <Button Name="btnFleSlec" Width="69" Height="27" Content="Browse" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="276,32,4,0"></Button> <Grid Grid.Row="1" Height="118" HorizontalAlignment="Left" Margin="0,1,0,0" Name="OptionGrid" VerticalAlignment="Top" Grid.RowSpan="2"> <StackPanel HorizontalAlignment="Left" VerticalAlignment="Top" Orientation="Horizontal"> <Border BorderBrush="Black" BorderThickness="1" Height="117" Margin="3,1,0,0" HorizontalAlignment="Stretch" Width="350"> <Grid Height="auto" HorizontalAlignment="Stretch" Width="335"> <Grid.RowDefinitions> <RowDefinition Height="10*"/> <RowDefinition Height="10*"/> <RowDefinition Height="10*"/> <RowDefinition Height="10*"/> <RowDefinition Height="10*"/> </Grid.RowDefinitions> <CheckBox Name="chkboxHas" VerticalAlignment="Center" HorizontalAlignment="Center">Has Column Headers</CheckBox> <Label Name="lblDesc" Height="auto" Margin="0,0,204,0" Grid.Row="1" HorizontalContentAlignment="Right" VerticalAlignment="Top">Description Column:</Label> <ComboBox Grid.Row="1" Name="cmboxDescol" Margin="131,0,0,0" Style="{StaticResource ResourceKey=HighLight}"></ComboBox> <Label Name="lblUrlCol" Height="auto" Grid.Row="2" Margin="0,0,204,0" HorizontalContentAlignment="Right">URL''s Column:</Label> <ComboBox Name="cmboxUrlCol" Grid.Row="2" Margin="131,0,0,0" Style="{StaticResource ResourceKey=HighLight}"></ComboBox> <Label Name="lblResCol" Height="auto" Grid.Row="3" Margin="0,0,196,0" HorizontalContentAlignment="Right">Result Column:</Label> <ComboBox Name="cmboxResCol" Grid.Row="3" Margin="131,0,0,0" Style="{StaticResource ResourceKey=HighLight}"></ComboBox> <Button Grid.Row="4" HorizontalAlignment="Center" VerticalAlignment="Center" Content="Validate URL links" Name="btnValidate"></Button> <Button Grid.Row="4" HorizontalAlignment="Center" VerticalAlignment="Center" Content="Start" Name="btnstrt" Margin="244,0,56,0"></Button> </Grid> </Border> </StackPanel> </Grid> </Grid> </DockPanel></Window>VB.net Class:- Imports MicrosoftImports MicrosoftImports SystemImports System.NetImports System.DataImports System.WindowsImports System.Windows.FormsImports Excel = Microsoft.Office.Interop.ExcelImports System.Collections.ObjectModelImports System.ComponentModelNamespace URLValide Public Class clsUrlCheck Implements INotifyPropertyChanged Public Event propertyChanged As PropertyChangedEventHandler Implements INotifyPropertyChanged.PropertyChanged Public exclApplic As New Excel.Application Public exclWkbOpe As Excel.Workbook Public exclWksAct As Excel.Worksheet Public exclRngUrl As Excel.Range Public exclRngDes As Excel.Range Public exclRngOut As Excel.Range Public intMaxRow As Long Public intCrtRow As Long Private _strTotlOf As String Private _strCrnUrl As String Private _ColorIndx As SolidColorBrush Private _strPdfLst As ObservableCollection(Of String) Private _strhdrPdf As ObservableCollection(Of String)#Region "Region of poperties" Public Property strTotlOf() As String Get Return _strTotlOf End Get Set(ByVal value As String) _strTotlOf = value Me.OnPropertyChanged("strTotlOf") End Set End Property Public Property strCrnUrl() As String Get Return _strCrnUrl End Get Set(ByVal value As String) _strCrnUrl = value Me.OnPropertyChanged("strCrnUrl") End Set End Property Public Property strPdfLst As ObservableCollection(Of String) Get Return _strPdfLst End Get Set(ByVal value As ObservableCollection(Of String)) _strPdfLst = value Me.OnPropertyChanged("strPdfLst") End Set End Property Public Property strhdrPdf As ObservableCollection(Of String) Get Return _strhdrPdf End Get Set(ByVal value As ObservableCollection(Of String)) _strhdrPdf = value Me.OnPropertyChanged("strhdrPdf") End Set End Property Public Property ColorIndx As SolidColorBrush Get Return _ColorIndx End Get Set(ByVal value As SolidColorBrush) _ColorIndx = value Me.OnPropertyChanged("ColorIndx") End Set End Property Private Sub OnPropertyChanged(ByVal propertyName As String) RaiseEvent propertyChanged(Me, New PropertyChangedEventArgs(propertyName)) End Sub#End Region#Region "function of Validating the URL's" Public Function UrlCheck(ByVal strUrlReq As String) Try Dim WebReq As Net.HttpWebRequest = Net.HttpWebRequest.Create(strUrlReq) WebReq.Method = "Head" WebReq.Timeout = 5000 Using Response = WebReq.GetResponse() Return True End Using Catch ex As Exception ColorIndx = New SolidColorBrush(Colors.Red) Return False End Try End Function#End Region#Region "Start Funtion" Sub suStart() If exclRngDes.Value = "Make Desc" Then strPdfLst = makeList(exclRngUrl.Column, True) exclRngDes.Delete() Else strPdfLst = makeList(exclRngUrl.Column, False) End If Dim blnValid As Boolean For Each exclRngEch As Excel.Range In exclRngUrl strCrnUrl = exclRngEch.Text strTotlOf = exclRngEch.Row & "OF" & intMaxRow blnValid = UrlCheck(exclRngEch.Value.ToString) If blnValid Then exclWksAct.Cells(exclRngEch.Row, exclRngOut.Column).value = "Web Page Present" Else exclWksAct.Cells(exclRngEch.Row, exclRngOut.Column).value = "Web Page Error" End If Next End Sub Function makeList(ByVal intColNum As Long, ByVal blnMkeStr As Boolean) As ObservableCollection(Of String) Dim ObsColTem As ObservableCollection(Of String) = New ObservableCollection(Of String) If Not blnMkeStr Then For intLopCnt As Int32 = intCrtRow To intMaxRow ObsColTem.Add(exclWksAct.Cells(intLopCnt, intColNum).Text) Next Else For intLopCnt As Int32 = intCrtRow To intMaxRow Dim strDesc As String = Mid(exclWksAct.Cells(intLopCnt, intColNum).Text, InStrRev(exclWksAct.Cells(intLopCnt, intColNum).Text, "/", , CompareMethod.Text) + 1) ObsColTem.Add(strDesc) Next End If Return ObsColTem End Function#End Region End ClassEnd NamespaceSorry if i was not clear.The code is running correctly and i am getting the out put.The code is not freezing or stopping the execution. but the WPF form window is going BLANK.like when you go for step by step debug, you will see just a blank white window rite. like that it is coming. when the execution is complete the window comes alive and shows the related output correctly. event the Excel is updated.So code is good. 解决方案 You are right in your assumption that HttpWebRequest.GetResponse can freeze the UI and cause some trouble. Look at your code: you are using 5 sec timeout; it means that your UI thread may hang for 5 sec. I''m not saying that this is the only problem, but this is one of the thing you should never do in your UI thread. You have to have a separate thread and do your check there, as with any other blocking, potentially blocking calls or long-lasting operations. Using a separate thread, you may also need thread synchronization and/or UI thread invocation using Dispatcher.—SA 这篇关于WPF：应用程序正在被绞死。不知道为什么？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！ 上岸，阿里云！
