C# 文本框内存消耗

我有一个

UserControl

，它是一个项目列表，其中每个项目都包含许多

TextBox

和

TextBlock

控件。我尝试禁用撤消步骤，但即使在列表中添加10项，内存消耗也相当高。我试着运行内存分析工具，我可以看到文本框是大约50MB内存的最大消耗者

我的XAML如下所示

<UserControl.Resources>
    <converter:GenericButtonConverter x:Key="ButtonConverter"/>
    <DataTemplate x:Key="RawSendListTemplate">
        <ListBoxItem BorderBrush="LightGray" BorderThickness="0.5" HorizontalAlignment="Stretch" Margin="3,1,3,1">
            <Grid>
                <Grid.ColumnDefinitions>
                    <ColumnDefinition Width="52"/>
                    <ColumnDefinition Width="80"/>
                    <ColumnDefinition Width="70"/>
                    <ColumnDefinition Width="40"/>
                    <ColumnDefinition Width="40"/>
                    <ColumnDefinition Width="40"/>
                    <ColumnDefinition Width="80"/>
                    <ColumnDefinition Width="60"/>
                    <ColumnDefinition Width="40"/>
                    <ColumnDefinition Width="60"/>
                    <ColumnDefinition Width="45"/>
                    <ColumnDefinition Width="36"/>
                    <ColumnDefinition Width="36"/>
                    <ColumnDefinition Width="36"/>
                    <ColumnDefinition Width="36"/>
                    <ColumnDefinition Width="36"/>
                    <ColumnDefinition Width="36"/>
                    <ColumnDefinition Width="36"/>
                    <ColumnDefinition Width="36"/>
                    <ColumnDefinition Width="*"/>
                </Grid.ColumnDefinitions>
                <TextBlock  Grid.Column="0"  Text="ID" MinWidth="20" FontSize="11" FontWeight="Bold" Foreground="Coral" 
                            VerticalAlignment="Center" TextAlignment="Center" Margin="0,0,5,0" />
                <TextBox    Grid.Column="1"  Text="{Binding Path=CanId, UpdateSourceTrigger=PropertyChanged}" MinWidth="20" FontSize="11"   Foreground="Blue" FontWeight="SemiBold" TextWrapping="NoWrap" MaxLength="8"
                            VerticalAlignment="Center" HorizontalContentAlignment="Center" Margin="0,0,15,0" UndoLimit="0" AcceptsReturn="False"  IsUndoEnabled="False" MaxLines="1" />

                <TextBlock  Grid.Column="2"  Text="CHANNEL" MinWidth="20" FontSize="11"  FontWeight="Bold" Foreground="Coral" 
                            VerticalAlignment="Center" TextAlignment="Center" Margin="0,0,5,0" />
                <TextBox    Grid.Column="3"  Text="{Binding Path=Channel, UpdateSourceTrigger=PropertyChanged}" MinWidth="20" FontSize="11"  Foreground="Blue" FontWeight="SemiBold" TextWrapping="NoWrap" MaxLength="1"
                            VerticalAlignment="Center" HorizontalContentAlignment="Center" Margin="0,0,15,0" UndoLimit="0" AcceptsReturn="False"  IsUndoEnabled="False" MaxLines="1"/>

                <TextBlock  Grid.Column="4"  Text="Length" MinWidth="20" FontSize="11"  FontWeight="Bold" Foreground="Coral" 
                            VerticalAlignment="Center" TextAlignment="Center" Margin="0,0,5,0" />
                <TextBox    Grid.Column="5"  Text="{Binding Path=Len , UpdateSourceTrigger=PropertyChanged}" MinWidth="20" FontSize="11"  Foreground="Blue" FontWeight="SemiBold"  MaxLength="1"
                            VerticalAlignment="Center" HorizontalContentAlignment="Center" Margin="0,0,15,0" UndoLimit="0" AcceptsReturn="False"  IsUndoEnabled="False" MaxLines="1"/>

                <Button     Grid.Column="6"  Content="Send" x:Name="RawSendButton" IsEnabled="{Binding Path=SendButtonEnabled}" MinWidth="20" FontSize="11"  FontWeight="SemiBold" Foreground="Black"
                            VerticalAlignment="Center" HorizontalContentAlignment="Center" Margin="0,0,5,0"
                            Command="{Binding ButtonClick}" CommandParameter="{Binding RelativeSource={RelativeSource Self}, Path=Name, Converter={StaticResource ButtonConverter}}"/>

                <TextBlock  Grid.Column="7"  Text="CYCLE" MinWidth="20" FontSize="11" FontWeight="Bold" Foreground="Coral" 
                            VerticalAlignment="Center" TextAlignment="Center" Margin="0,0,5,0" />
                <TextBox    Grid.Column="8"  Text="{Binding Path=CycleTimeMs, UpdateSourceTrigger=PropertyChanged}" IsEnabled="{Binding Path=SendButtonEnabled}" MinWidth="20" FontSize="11"  Foreground="Blue" FontWeight="SemiBold" MaxLength="4"
                            VerticalAlignment="Center" TextAlignment="Center" HorizontalContentAlignment="Center" Margin="0,0,5,0" UndoLimit="0" AcceptsReturn="False"  IsUndoEnabled="False" MaxLines="1"/>
                <CheckBox   Grid.Column="9"  IsChecked="{Binding Path=CyclicEnableChecked, Mode=TwoWay}" IsEnabled="{Binding Path=CyclicEnable, UpdateSourceTrigger=PropertyChanged}"    MinWidth="20" 
                            VerticalAlignment="Center" HorizontalContentAlignment="Center" Margin="0,0,40,0"/>

                <TextBlock  Grid.Column="10" Text="DATA" MinWidth="20" FontSize="11" FontWeight="Bold" Foreground="Coral" 
                            VerticalAlignment="Center" TextAlignment="Left"  Margin="0,0,10,0" />
                <TextBox    Grid.Column="11" Text="{Binding Path=Byte1}"  IsEnabled="{Binding Path=Byte1Enabled, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" MinWidth="20" FontSize="11" Foreground="Blue" FontWeight="SemiBold" MaxLength="2"
                            TextAlignment="Right"  VerticalAlignment="Center" HorizontalContentAlignment="Center" Margin="0,0,5,0" UndoLimit="0" AcceptsReturn="False"  IsUndoEnabled="False" MaxLines="1"/>
                <TextBox    Grid.Column="12" Text="{Binding Path=Byte2}"  IsEnabled="{Binding Path=Byte2Enabled, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" MinWidth="20" FontSize="11" Foreground="Blue" FontWeight="SemiBold" MaxLength="2"
                            VerticalAlignment="Center" TextAlignment="Right" HorizontalContentAlignment="Center" Margin="0,0,5,0" UndoLimit="0" AcceptsReturn="False"  IsUndoEnabled="False" MaxLines="1"/>
                <TextBox    Grid.Column="13" Text="{Binding Path=Byte3}"  IsEnabled="{Binding Path=Byte3Enabled, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" MinWidth="20" FontSize="11" Foreground="Blue" FontWeight="SemiBold" MaxLength="2"
                            VerticalAlignment="Center" TextAlignment="Right" HorizontalContentAlignment="Center" Margin="0,0,5,0" UndoLimit="0" AcceptsReturn="False"  IsUndoEnabled="False" MaxLines="1"/>
                <TextBox    Grid.Column="14" Text="{Binding Path=Byte4}"  IsEnabled="{Binding Path=Byte4Enabled, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" MinWidth="20" FontSize="11" Foreground="Blue" FontWeight="SemiBold" MaxLength="2"
                            VerticalAlignment="Center" TextAlignment="Right" HorizontalContentAlignment="Center" Margin="0,0,5,0" UndoLimit="0" AcceptsReturn="False"  IsUndoEnabled="False" MaxLines="1"/>
                <TextBox    Grid.Column="15" Text="{Binding Path=Byte5}"  IsEnabled="{Binding Path=Byte5Enabled, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" MinWidth="20" FontSize="11" Foreground="Blue" FontWeight="SemiBold" MaxLength="2"
                            VerticalAlignment="Center" TextAlignment="Right" HorizontalContentAlignment="Center" Margin="0,0,5,0" UndoLimit="0" AcceptsReturn="False"  IsUndoEnabled="False" MaxLines="1"/>
                <TextBox    Grid.Column="16" Text="{Binding Path=Byte6}"  IsEnabled="{Binding Path=Byte6Enabled, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" MinWidth="20" FontSize="11" Foreground="Blue" FontWeight="SemiBold" MaxLength="2"
                            VerticalAlignment="Center" TextAlignment="Right" HorizontalContentAlignment="Center" Margin="0,0,5,0" UndoLimit="0" AcceptsReturn="False"  IsUndoEnabled="False" MaxLines="1"/>
                <TextBox    Grid.Column="17" Text="{Binding Path=Byte7}"  IsEnabled="{Binding Path=Byte7Enabled, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" MinWidth="20" FontSize="11" Foreground="Blue" FontWeight="SemiBold" MaxLength="2"
                            VerticalAlignment="Center" TextAlignment="Right" HorizontalContentAlignment="Center" Margin="0,0,5,0" UndoLimit="0" AcceptsReturn="False"  IsUndoEnabled="False" MaxLines="1"/>
                <TextBox    Grid.Column="18" Text="{Binding Path=Byte8}"  IsEnabled="{Binding Path=Byte8Enabled, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" MinWidth="20" FontSize="11" Foreground="Blue" FontWeight="SemiBold" MaxLength="2"
                            VerticalAlignment="Center" TextAlignment="Right" HorizontalContentAlignment="Center" Margin="0,0,5,0" UndoLimit="0" AcceptsReturn="False"  IsUndoEnabled="False" MaxLines="1"/>
            </Grid>
        </ListBoxItem>
    </DataTemplate>
</UserControl.Resources>        
<Grid>
    <ListBox x:Name="RawSendList" BorderThickness="1" BorderBrush="DarkGray" Margin="1" ItemsSource="{Binding MyViewModel.RawMessages}" ItemTemplate="{StaticResource RawSendListTemplate}" 
                SelectedItem="{Binding MyViewModel.SelectedRawMessageItem, Mode=OneWayToSource}" SelectionMode="Single" Background="OldLace"/>
</Grid>

---

现在我想知道我还能从哪里得到更多的钱

为什么？内存很便宜。你有什么例外吗？如果没有，不要担心。分配是昂贵的，因此CLR倾向于保留任何分配的内存。放下任务管理器，走开。@WinterS那么您还有其他影响系统性能的因素。@WinterS可能是这些绑定。你需要看看你的C代码，找出问题所在。我保证问题不在XAML中。好吧，每个人都希望它是绑定，因为这就是他们所能看到的。显示您从内存分析器获得的报告。过去，我在网格中同时在屏幕上显示多个文本框时遇到了问题，对此问题有两种截然不同的解决方案。第一个问题是由设置

isundoabled=“False”

以禁用跟踪和存储

TextBox.Text

更改引起的，并通过设置该选项加以解决。第二种解决方案是将所有内容显示为

文本块

，这比

文本框

占用的内存要少得多，并在用户编辑模板时将其更改为

文本框

（例如单击该项）。

UndoLimit="0" AcceptsReturn="False"  IsUndoEnabled="False"