如何在C＃中使用进度条 [英] How to use progress bar in C#

问题描述

我有一个Windows窗体应用程序项目。

我有一个提交按钮。在它的方法中有一个很长的代码。

我希望当我点击提交按钮时，进度条应该在按钮方法中的代码完全完成时开始和结束。



我尝试了什么：



i尝试使用计时器并在按钮的星形启动计时器方法

并在timer_click方法中将进度条增加1。

但是进度条卡在起始位置。



i尝试过背景工作但不能使用它。

任何人都可以帮我轻松解决这个问题吗？不使用线程和所有

I have a windows form application project with me.
I have a submit button in it. And in its method there is a long code.
I want that when i click on the submit button the progress bar should start and end when the code in the button's method is completed completely.

What I have tried:

i tried using timer and started timer in star of button's method
and incremented progress bar by 1 in timer_click method.
but the progress bar is stuck in the starting.

i tried backgroundworker but couldn't use it.
can anyone help me achive this easily? without use of threading and all

推荐答案

我在使用WPF时也遇到过这个问题，你可能需要这样的东西：

I experienced this problem too when starting with WPF, you probably need something like this:

progressbar1.Dispatcher.Invoke(() => progressbar1.Value = i, DispatcherPriority.Background);

参见： c＃ - 实时更新进度条wpf - 堆栈溢出 [ ^ ]

请看一下这个例子：



MainWindow .xaml

Please have a look at this example:

MainWindow.xaml

<Window x:Class="WpfApplication3.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:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        mc:Ignorable="d"
        Title="MainWindow" Height="350" Width="525">
    <Grid>
        <ProgressBar Name="ProgressBar" Height="20"></ProgressBar>
    </Grid>
</Window>

MainWindow.xaml.cs

MainWindow.xaml.cs

using System.Threading;
using System.Threading.Tasks;
using System.Windows;

namespace WpfApplication3
{
    public partial class MainWindow
    {
        public MainWindow()
        {
            InitializeComponent();

            ProgressBar.Minimum = 0;
            ProgressBar.Maximum = 100;
            ProgressBar.Value = 0;

            DoIt();
        }

        public void DoIt()
        {
            var task = new Task(() =>
            {
                for (var i = 0; i <= 100; i++)
                {
                    SetProgressBarValue(i);

                    // Simulate some work...
                    Thread.Sleep(100);
                }
            });

            task.Start();
        }

        public void SetProgressBarValue(int value)
        {
            Application.Current.Dispatcher.Invoke(() =>
            {
                ProgressBar.Value = value;
            });
        }
    }
}

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