c# - 如何将数据点快速添加到WPF图表

Question

您好，我有一个很大的数据库，我从那里取了1500个值以便在图表中显示。

我的问题是显示所有点需要很长时间，我认为这是因为动画设置。

如何更改动画的速度，或者有什么方法可以更快地显示点？

<UserControl x:Class="Ipte.UI.Pages.StatisticsPage"
        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:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:gcl="clr-namespace:GuiControlLibrary;assembly=GuiControlLibrary"
        xmlns:toolkit="http://schemas.microsoft.com/wpf/2008/toolkit"
             xmlns:time="clr-namespace:Ipte.UI"
        xmlns:chartToolkit="clr-namespace:System.Windows.Controls.DataVisualization.Charting;assembly=System.Windows.Controls.DataVisualization.Toolkit"
        mc:Ignorable="d"
        Height="800" Width="1200">
    <UserControl.Resources>
        <Style x:Key="Scater" TargetType="chartToolkit:ScatterDataPoint">
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="chartToolkit:ScatterDataPoint">
                        <Viewbox x:Name="viewbox">
                            <!--<Ellipse Width="1" Height="1" Fill="Black"/>-->
                        </Viewbox>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
            <Setter Property="Width" Value="4"/>
            <Setter Property="Height" Value="4"/>
        </Style>
    </UserControl.Resources>
    <Grid>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="Auto"/>
            <ColumnDefinition Width="*"/>
        </Grid.ColumnDefinitions>
        <Grid x:Name="filterGrid" Grid.Column="0" Margin="4">
            <StackPanel>
                <TextBlock Text="" Margin="2"/>
                <toolkit:DatePicker x:Name="dpStartDate" Margin="2" />
                <time:TimePicker x:Name="tpStartTime" Margin="2"/>             
                <TextBlock Text="End date &amp; time:" Margin="2"/>
                <toolkit:DatePicker x:Name="dpEndDate" Margin="2"/>
                <time:TimePicker x:Name="tpEndTime" Margin="2"/>

                <gcl:GuiGroupBox Header="Select router" BorderBrush="LightGray">
                    <UniformGrid Rows="2" Columns="2">
                        <CheckBox x:Name="cbEr11" Content="ER 1.1" Margin="2"/>
                        <CheckBox x:Name="cbEr12" Content="ER 1.2" Margin="2"/>
                        <CheckBox x:Name="cbEr21" Content="ER 2.1" Margin="2"/>
                        <CheckBox x:Name="cbEr22" Content="ER 2.1" Margin="2"/>
                    </UniformGrid>
                </gcl:GuiGroupBox>
                <TextBlock Text="" Margin="2"/>
                <ComboBox x:Name="cmbGoodBad" Margin="2"/>
                <TextBlock Text="" Margin="2"/>
                <TextBox x:Name="" Margin="2"/>
                <TextBlock Text="" Margin="2"/>
                <TextBox x:Name="" Margin="2"/>
                <gcl:GuiGroupBox Header="Select value" BorderBrush="LightGray">
                    <StackPanel>
                        <RadioButton x:Name="combValueA" Content="Value A" Margin="2"/>
                        <RadioButton x:Name="combValueB" Content="Value B" Margin="2"/>
                        <RadioButton x:Name="combValueC" Content="Value C" Margin="2"/>
                    </StackPanel>
                </gcl:GuiGroupBox>
                <Button x:Name="btnResetFilters" Content="Reset filters" Margin="2 10 2 2" Click="ResetFilters_Click"/>
                <Button x:Name="btnUpdateChart" Content="Update Chart" Margin="2 2 2 2" Click="UpdateChartAndFilters_Click"/>
                <Button x:Name="btnLoadFile" Content="Load file..." Grid.Column="0" VerticalAlignment="Top" Margin="2" Visibility="Visible" Click="OpenFile_Click"/>
            </StackPanel>
            <Button x:Name="deleteDatabase" Content="Delete database" Grid.Column="0" VerticalAlignment="Bottom" Margin="2" Click="deleteDatabase_Click"/>
        </Grid>
        <chartToolkit:Chart Grid.Column="1" x:Name="dataChart">
            <chartToolkit:Chart.Series>
                <chartToolkit:ScatterSeries x:Name="scatterSeries"
                                        ItemsSource="{Binding}"
                                        DependentValueBinding="{Binding Path=Value}"
                                        IndependentValueBinding="{Binding Path=Key}" 
                                        IsSelectionEnabled="False"
                                           AnimationSequence="Simultaneous">
                    <chartToolkit:ScatterSeries.IndependentAxis>
                        <chartToolkit:DateTimeAxis Orientation="X" Title="Time"/>
                    </chartToolkit:ScatterSeries.IndependentAxis>
                    <chartToolkit:ScatterSeries.DependentRangeAxis>
                        <chartToolkit:LinearAxis Orientation="Y" Title="Points" x:Name="yAxis"/>
                    </chartToolkit:ScatterSeries.DependentRangeAxis>
                </chartToolkit:ScatterSeries>
                <chartToolkit:LineSeries x:Name="lineSeriesMax"
                                         Title="Maximum"
                                         ItemsSource="{Binding}"
                                         DependentValueBinding="{Binding Path=Value}"
                                         IndependentValueBinding="{Binding Path=Key}">
                </chartToolkit:LineSeries>
                <chartToolkit:LineSeries x:Name="lineSeriesMin"
                                         Title="Minimum"
                                         ItemsSource="{Binding}"
                                         DependentValueBinding="{Binding Path=Value}"
                                         IndependentValueBinding="{Binding Path=Key}">
                </chartToolkit:LineSeries>
                <chartToolkit:LineSeries x:Name="lineSeriesAvg"
                                         Title="Average"
                                         ItemsSource="{Binding}"
                                         DependentValueBinding="{Binding Path=Value}"
                                         IndependentValueBinding="{Binding Path=Key}">
                </chartToolkit:LineSeries>
            </chartToolkit:Chart.Series>
        </chartToolkit:Chart>
    </Grid>
</UserControl>

这是我的观点的显示方式：

Answer 1

该帖子已被其所有者自愿删除。