ما هي أفضل طريقة لعرض مؤشر "التحميل" على عنصر تحكم WPF

Question

في C#.Net WPF أثناء UserControl.Load ->

ما هي أفضل طريقة لإظهار دائرة دوامية/مؤشر "التحميل" على UserControl حتى تنتهي من جمع البيانات وعرض محتوياتها؟

Answer 1

سأقوم عمومًا بإنشاء تخطيط مثل هذا:

<Grid>
    <Grid x:Name="MainContent" IsEnabled="False">
    ...
    </Grid>

    <Grid x:Name="LoadingIndicatorPanel">
    ...
    </Grid>
</Grid>

بعد ذلك، أقوم بتحميل البيانات على مؤشر ترابط عامل، وعند الانتهاء، أقوم بتحديث واجهة المستخدم ضمن شبكة "MainContent" وتمكين الشبكة، ثم قم بتعيين رؤية LoadingIndicatorPanel على مطوية.

لست متأكدًا مما إذا كان هذا هو ما كنت تطلبه أو إذا كنت تريد معرفة كيفية إظهار رسم متحرك في ملصق التحميل.إذا كان هذا هو الرسم المتحرك الذي تبحث عنه، فيرجى تحديث سؤالك ليكون أكثر تحديدًا.

Answer 2

هذا شيء كنت أعمل عليه مؤخرًا لإنشاء رسم متحرك للتحميل.سينتج هذا xaml حلقة متحركة من الدوائر.

كانت فكرتي الأولية هي إنشاء زخرفة واستخدام هذه الرسوم المتحركة كمحتوى، ثم عرض الرسوم المتحركة المحملة في طبقة الزينة وإضفاء اللون الرمادي على المحتوى الموجود أسفلها.

لم تسنح لي الفرصة لإنهائه بعد، لذا فكرت في أن أنشر الرسوم المتحركة كمرجع لك.

<Window 
    x:Class="WpfApplication2.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="Window1"
    Height="300"
    Width="300"
    >
    <Window.Resources>
        <Color x:Key="FilledColor" A="255" B="155" R="155" G="155"/>
        <Color x:Key="UnfilledColor" A="0" B="155" R="155" G="155"/>

        <Storyboard x:Key="Animation0" FillBehavior="Stop" BeginTime="00:00:00.0" RepeatBehavior="Forever">
            <ColorAnimationUsingKeyFrames Storyboard.TargetName="_00" Storyboard.TargetProperty="(Shape.Fill).(SolidColorBrush.Color)">
                <SplineColorKeyFrame KeyTime="00:00:00.0" Value="{StaticResource FilledColor}"/>
                <SplineColorKeyFrame KeyTime="00:00:01.6" Value="{StaticResource UnfilledColor}"/>
            </ColorAnimationUsingKeyFrames>
        </Storyboard>

        <Storyboard x:Key="Animation1" BeginTime="00:00:00.2" RepeatBehavior="Forever">
            <ColorAnimationUsingKeyFrames Storyboard.TargetName="_01" Storyboard.TargetProperty="(Shape.Fill).(SolidColorBrush.Color)">
                <SplineColorKeyFrame KeyTime="00:00:00.0" Value="{StaticResource FilledColor}"/>
                <SplineColorKeyFrame KeyTime="00:00:01.6" Value="{StaticResource UnfilledColor}"/>
            </ColorAnimationUsingKeyFrames>
        </Storyboard>

        <Storyboard x:Key="Animation2" BeginTime="00:00:00.4" RepeatBehavior="Forever">
            <ColorAnimationUsingKeyFrames Storyboard.TargetName="_02" Storyboard.TargetProperty="(Shape.Fill).(SolidColorBrush.Color)">
                <SplineColorKeyFrame KeyTime="00:00:00.0" Value="{StaticResource FilledColor}"/>
                <SplineColorKeyFrame KeyTime="00:00:01.6" Value="{StaticResource UnfilledColor}"/>
            </ColorAnimationUsingKeyFrames>
        </Storyboard>

        <Storyboard x:Key="Animation3" BeginTime="00:00:00.6" RepeatBehavior="Forever">
            <ColorAnimationUsingKeyFrames Storyboard.TargetName="_03" Storyboard.TargetProperty="(Shape.Fill).(SolidColorBrush.Color)">
                <SplineColorKeyFrame KeyTime="00:00:00.0" Value="{StaticResource FilledColor}"/>
                <SplineColorKeyFrame KeyTime="00:00:01.6" Value="{StaticResource UnfilledColor}"/>
            </ColorAnimationUsingKeyFrames>
        </Storyboard>

        <Storyboard x:Key="Animation4" BeginTime="00:00:00.8" RepeatBehavior="Forever">
            <ColorAnimationUsingKeyFrames Storyboard.TargetName="_04" Storyboard.TargetProperty="(Shape.Fill).(SolidColorBrush.Color)">
                <SplineColorKeyFrame KeyTime="00:00:00.0" Value="{StaticResource FilledColor}"/>
                <SplineColorKeyFrame KeyTime="00:00:01.6" Value="{StaticResource UnfilledColor}"/>
            </ColorAnimationUsingKeyFrames>
        </Storyboard>

        <Storyboard x:Key="Animation5" BeginTime="00:00:01.0" RepeatBehavior="Forever">
            <ColorAnimationUsingKeyFrames Storyboard.TargetName="_05" Storyboard.TargetProperty="(Shape.Fill).(SolidColorBrush.Color)">
                <SplineColorKeyFrame KeyTime="00:00:00.0" Value="{StaticResource FilledColor}"/>
                <SplineColorKeyFrame KeyTime="00:00:01.6" Value="{StaticResource UnfilledColor}"/>
            </ColorAnimationUsingKeyFrames>
        </Storyboard>

        <Storyboard x:Key="Animation6" BeginTime="00:00:01.2" RepeatBehavior="Forever">
            <ColorAnimationUsingKeyFrames Storyboard.TargetName="_06" Storyboard.TargetProperty="(Shape.Fill).(SolidColorBrush.Color)">
                <SplineColorKeyFrame KeyTime="00:00:00.0" Value="{StaticResource FilledColor}"/>
                <SplineColorKeyFrame KeyTime="00:00:01.6" Value="{StaticResource UnfilledColor}"/>
            </ColorAnimationUsingKeyFrames>
        </Storyboard>

        <Storyboard x:Key="Animation7" BeginTime="00:00:01.4" RepeatBehavior="Forever">
            <ColorAnimationUsingKeyFrames Storyboard.TargetName="_07" Storyboard.TargetProperty="(Shape.Fill).(SolidColorBrush.Color)">
                <SplineColorKeyFrame KeyTime="00:00:00.0" Value="{StaticResource FilledColor}"/>
                <SplineColorKeyFrame KeyTime="00:00:01.6" Value="{StaticResource UnfilledColor}"/>
            </ColorAnimationUsingKeyFrames>
        </Storyboard>
    </Window.Resources>

    <Window.Triggers>
        <EventTrigger RoutedEvent="FrameworkElement.Loaded">
            <BeginStoryboard Storyboard="{StaticResource Animation0}"/>
            <BeginStoryboard Storyboard="{StaticResource Animation1}"/>
            <BeginStoryboard Storyboard="{StaticResource Animation2}"/>
            <BeginStoryboard Storyboard="{StaticResource Animation3}"/>
            <BeginStoryboard Storyboard="{StaticResource Animation4}"/>
            <BeginStoryboard Storyboard="{StaticResource Animation5}"/>
            <BeginStoryboard Storyboard="{StaticResource Animation6}"/>
            <BeginStoryboard Storyboard="{StaticResource Animation7}"/>
        </EventTrigger>
    </Window.Triggers>

    <Canvas>
        <Canvas Canvas.Left="21.75" Canvas.Top="14" Height="81.302" Width="80.197">
            <Canvas.Resources>
                <Style TargetType="Ellipse">
                    <Setter Property="Width" Value="15"/>
                    <Setter Property="Height" Value="15" />
                    <Setter Property="Fill" Value="#FFFFFFFF" />
                </Style>
            </Canvas.Resources>

            <Ellipse x:Name="_00" Canvas.Left="24.75" Canvas.Top="50"/>
            <Ellipse x:Name="_01" Canvas.Top="36" Canvas.Left="29.5"/>
            <Ellipse x:Name="_02" Canvas.Left="43.5" Canvas.Top="29.75"/>
            <Ellipse x:Name="_03" Canvas.Left="57.75" Canvas.Top="35.75"/>
            <Ellipse x:Name="_04" Canvas.Left="63.5" Canvas.Top="49.75" />
            <Ellipse x:Name="_05" Canvas.Left="57.75" Canvas.Top="63.5"/>
            <Ellipse x:Name="_06" Canvas.Left="43.75" Canvas.Top="68.75"/>
            <Ellipse x:Name="_07" Canvas.Top="63.25" Canvas.Left="30" />
            <Ellipse Stroke="{x:Null}" Width="39.5" Height="39.5" Canvas.Left="31.75" Canvas.Top="37" Fill="{x:Null}"/>
        </Canvas>
    </Canvas>
</Window>

Answer 3

لقد قمت بتحسين تصميم Ian Oakes Design وقمت بإنشاء نسخة قابلة للتطوير من مؤشر التحميل الخاص به:

<UserControl x:Class="Mesap.Framework.UI.Controls.BusyIndicator"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             mc:Ignorable="d" Name="Root" Foreground="#9b9b9b"
             d:DesignHeight="100" d:DesignWidth="100">
    <Grid>
        <Grid.Resources>
            <Storyboard x:Key="Animation0" FillBehavior="Stop" BeginTime="00:00:00.0" RepeatBehavior="Forever">
                <DoubleAnimationUsingKeyFrames Storyboard.TargetName="E00" Storyboard.TargetProperty="Opacity">
                    <LinearDoubleKeyFrame KeyTime="00:00:00.0" Value="1"/>
                    <LinearDoubleKeyFrame KeyTime="00:00:01.6" Value="0"/>
                </DoubleAnimationUsingKeyFrames>
            </Storyboard>

            <Storyboard x:Key="Animation1" BeginTime="00:00:00.2" RepeatBehavior="Forever">
                <DoubleAnimationUsingKeyFrames Storyboard.TargetName="E01" Storyboard.TargetProperty="Opacity">
                    <LinearDoubleKeyFrame KeyTime="00:00:00.0" Value="1"/>
                    <LinearDoubleKeyFrame KeyTime="00:00:01.6" Value="0"/>
                </DoubleAnimationUsingKeyFrames>
            </Storyboard>

            <Storyboard x:Key="Animation2" BeginTime="00:00:00.4" RepeatBehavior="Forever">
                <DoubleAnimationUsingKeyFrames Storyboard.TargetName="E02" Storyboard.TargetProperty="Opacity">
                    <LinearDoubleKeyFrame KeyTime="00:00:00.0" Value="1"/>
                    <LinearDoubleKeyFrame KeyTime="00:00:01.6" Value="0"/>
                </DoubleAnimationUsingKeyFrames>
            </Storyboard>

            <Storyboard x:Key="Animation3" BeginTime="00:00:00.6" RepeatBehavior="Forever">
                <DoubleAnimationUsingKeyFrames Storyboard.TargetName="E03" Storyboard.TargetProperty="Opacity">
                    <LinearDoubleKeyFrame KeyTime="00:00:00.0" Value="1"/>
                    <LinearDoubleKeyFrame KeyTime="00:00:01.6" Value="0"/>
                </DoubleAnimationUsingKeyFrames>
            </Storyboard>

            <Storyboard x:Key="Animation4" BeginTime="00:00:00.8" RepeatBehavior="Forever">
                <DoubleAnimationUsingKeyFrames Storyboard.TargetName="E04" Storyboard.TargetProperty="Opacity">
                    <LinearDoubleKeyFrame KeyTime="00:00:00.0" Value="1"/>
                    <LinearDoubleKeyFrame KeyTime="00:00:01.6" Value="0"/>
                </DoubleAnimationUsingKeyFrames>
            </Storyboard>

            <Storyboard x:Key="Animation5" BeginTime="00:00:01.0" RepeatBehavior="Forever">
                <DoubleAnimationUsingKeyFrames Storyboard.TargetName="E05" Storyboard.TargetProperty="Opacity">
                    <LinearDoubleKeyFrame KeyTime="00:00:00.0" Value="1"/>
                    <LinearDoubleKeyFrame KeyTime="00:00:01.6" Value="0"/>
                </DoubleAnimationUsingKeyFrames>
            </Storyboard>

            <Storyboard x:Key="Animation6" BeginTime="00:00:01.2" RepeatBehavior="Forever">
                <DoubleAnimationUsingKeyFrames Storyboard.TargetName="E06" Storyboard.TargetProperty="Opacity">
                    <LinearDoubleKeyFrame KeyTime="00:00:00.0" Value="1"/>
                    <LinearDoubleKeyFrame KeyTime="00:00:01.6" Value="0"/>
                </DoubleAnimationUsingKeyFrames>
            </Storyboard>

            <Storyboard x:Key="Animation7" BeginTime="00:00:01.4" RepeatBehavior="Forever">
                <DoubleAnimationUsingKeyFrames Storyboard.TargetName="E07" Storyboard.TargetProperty="Opacity">
                    <LinearDoubleKeyFrame KeyTime="00:00:00.0" Value="1"/>
                    <LinearDoubleKeyFrame KeyTime="00:00:01.6" Value="0"/>
                </DoubleAnimationUsingKeyFrames>
            </Storyboard>

            <Style TargetType="Ellipse">
                <Setter Property="Fill" Value="{Binding ElementName=Root, Path=Foreground}"/>

            </Style>
        </Grid.Resources>
        <Grid.Triggers>
            <EventTrigger RoutedEvent="FrameworkElement.Loaded">
                <BeginStoryboard Storyboard="{StaticResource Animation0}"/>
                <BeginStoryboard Storyboard="{StaticResource Animation1}"/>
                <BeginStoryboard Storyboard="{StaticResource Animation2}"/>
                <BeginStoryboard Storyboard="{StaticResource Animation3}"/>
                <BeginStoryboard Storyboard="{StaticResource Animation4}"/>
                <BeginStoryboard Storyboard="{StaticResource Animation5}"/>
                <BeginStoryboard Storyboard="{StaticResource Animation6}"/>
                <BeginStoryboard Storyboard="{StaticResource Animation7}"/>
            </EventTrigger>
        </Grid.Triggers>

        <Grid.ColumnDefinitions>
            <ColumnDefinition/>
            <ColumnDefinition/>
            <ColumnDefinition/>
            <ColumnDefinition/>
            <ColumnDefinition/>
            <ColumnDefinition/>
            <ColumnDefinition/>
            <ColumnDefinition/>
            <ColumnDefinition/>
            <ColumnDefinition/>
            <ColumnDefinition/>
        </Grid.ColumnDefinitions>
        <Grid.RowDefinitions>
            <RowDefinition/>
            <RowDefinition/>
            <RowDefinition/>
            <RowDefinition/>
            <RowDefinition/>
            <RowDefinition/>
            <RowDefinition/>
            <RowDefinition/>
            <RowDefinition/>
            <RowDefinition/>
            <RowDefinition/>
        </Grid.RowDefinitions>

        <Ellipse x:Name="E00" Grid.Row="4" Grid.Column="0" Grid.RowSpan="3" Grid.ColumnSpan="3" Width="Auto" Height="Auto" Opacity="0"/>
        <Ellipse x:Name="E01" Grid.Row="1" Grid.Column="1" Grid.RowSpan="3" Grid.ColumnSpan="3" Width="Auto" Height="Auto" Opacity="0" />
        <Ellipse x:Name="E02" Grid.Row="0" Grid.Column="4" Grid.RowSpan="3" Grid.ColumnSpan="3" Width="Auto" Height="Auto" Opacity="0" />
        <Ellipse x:Name="E03" Grid.Row="1" Grid.Column="7" Grid.RowSpan="3" Grid.ColumnSpan="3" Width="Auto" Height="Auto" Opacity="0" />
        <Ellipse x:Name="E04" Grid.Row="4" Grid.Column="8" Grid.RowSpan="3" Grid.ColumnSpan="3" Width="Auto" Height="Auto" Opacity="0" />
        <Ellipse x:Name="E05" Grid.Row="7" Grid.Column="7" Grid.RowSpan="3" Grid.ColumnSpan="3" Width="Auto" Height="Auto" Opacity="0" />
        <Ellipse x:Name="E06" Grid.Row="8" Grid.Column="4" Grid.RowSpan="3" Grid.ColumnSpan="3" Width="Auto" Height="Auto" Opacity="0" />
        <Ellipse x:Name="E07" Grid.Row="7" Grid.Column="1" Grid.RowSpan="3" Grid.ColumnSpan="3" Width="Auto" Height="Auto" Opacity="0" />
    </Grid>
</UserControl>

Answer 4

إذا كنت تقوم بتشغيله على نظام التشغيل Vista، فيمكنك أيضًا استخدام مؤشر الانتظار الافتراضي.

this.Cursor = Cursors.Wait;

Answer 5

استخدم مؤشر الانشغال.إنه شيء فضي.

Answer 6

يمكنك إظهار صورة GIF المتحركة كعنصر تحميل

XAML

<WindowsFormsHost>
    <winForms:PictureBox x:Name="pictureBoxLoading" />
</WindowsFormsHost>

الكود خلف

pictureBoxLoading.Image = System.Drawing.Image.FromFile("images/ajax-loader.gif");