我在使ProgressBar正常工作时遇到麻烦。

XAML:

    <ProgressBar x:Name="ProgressBar" Value="{Binding Progress, UpdateSourceTrigger=PropertyChanged}" HorizontalAlignment="Left" Height="37" Margin="10,35,0,0" VerticalAlignment="Top" Width="590"/>

后面的代码:
    ProgressBar.DataContext = progressModel;

IProgressModel:
public interface IProgressModel
{
    double Minimum { get; set; }
    double Maximum { get; set; }
    double Progress { get; }
}

执行:
    private void WorkerOnDoWork(object sender, DoWorkEventArgs doWorkEventArgs)
    {
        Minimum = 0;
        Maximum = RenamableFiles.Count;

        var i = 0;
        foreach (var renamableFile in RenamableFiles)
        {
            var oldFilename = ReCreateOldFileName(renamableFile);
            var renameProposalFilename = CreateNewFileName(renamableFile);

            if (oldFilename != null && renameProposalFilename != null && !oldFilename.Equals(renameProposalFilename))
            {
                // File.Move(oldFilename, renameProposalFilename);
                Thread.Sleep(100);
                Progress = i++;
            }
        }
    }

以及非常简单的PropertyChanged机制:
    private double _progress;
    public double Progress
    {
        get { return _progress; }
        set
        {
            _progress = value;
            OnPropertyChanged();
        }
    }

    public event PropertyChangedEventHandler PropertyChanged;

    [NotifyPropertyChangedInvocator]
    protected virtual void OnPropertyChanged([CallerMemberName] string propertyName = null)
    {
        var handler = PropertyChanged;
        if (handler != null) handler(this, new PropertyChangedEventArgs(propertyName));
    }

ProgressBar开始“已满”,并在整个过程中保持这种状态。我已经阅读了SO上的所有相关主题,但是没有运气。

我究竟做错了什么?

提前谢谢。

最佳答案

您还需要绑定(bind)最大值:

    <ProgressBar x:Name="ProgressBar"
        Value="{Binding Progress}"
        Maximum="{Binding Maximum}"
        Minimum="{Binding Minimum}"
        HorizontalAlignment="Left" Height="37" Margin="10,35,0,0"
        VerticalAlignment="Top" Width="590"/>

关于c# - WPF数据绑定(bind)的ProgressBar不显示进度,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/19776786/

10-13 06:00