这期内容当中小编将会给大家带来有关利用WPF怎么实现一个进度条功能，文章内容丰富且以专业的角度为大家分析和叙述，阅读完这篇文章希望大家可以有所收获。
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实现说明
1、下载MUI相关代码或者dll文件；
2、工程中引入该dll，并引入其资源文件；
3、在需要显示进度条的页面，加入控件（其实还是WPF控件，只是MUI扩展了其样式而已）；
正在启动:
正在加载地图数据...
4、后台实现，由于要根据情况更新进度文字及进度条的值。所以，这里用到了异步BackgroundWorker（具体可以网上查查相关资料）；
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.ComponentModel;
namespace Monitor.Class
{
///
/// 异步操作
///
public class CWorker
{
///
/// 对象
///
private BackgroundWorker backgroundWorker;
///
/// 后台执行的操作
///
public Action BackgroundWork { get; set; }
///
/// 后台任务执行完毕后事件
///
public event EventHandler BackgroundWorkerCompleted;
private BackgroundWorkerEventArgs _eventArgs;//异常参数
///
/// 构造
///
public CWorker()
{
_eventArgs = new BackgroundWorkerEventArgs();
backgroundWorker = new BackgroundWorker();
backgroundWorker.WorkerReportsProgress = true;
backgroundWorker.WorkerSupportsCancellation = true;
backgroundWorker.DoWork += new DoWorkEventHandler(backgroundWorker1_DoWork);
backgroundWorker.RunWorkerCompleted += new RunWorkerCompletedEventHandler(backgroundWorker1_RunWorkerCompleted);
}
///
/// 开始工作
///
public void BegionWork()
{
if (backgroundWorker.IsBusy)
return;
backgroundWorker.RunWorkerAsync();
}
///
/// 工作
///
///
///
private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
{
if (BackgroundWork != null)
{
try
{
BackgroundWork();
}
catch (Exception ex)
{
_eventArgs.BackGroundException = ex;
}
}
}
///
/// 完成
///
///
///
private void backgroundWorker1_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
{
if (this.BackgroundWorkerCompleted != null)
{
this.BackgroundWorkerCompleted(null, _eventArgs);
}
}
}
///
/// 事件
///
public class BackgroundWorkerEventArgs : EventArgs
{
///
/// 后台程序运行时抛出的异常
///
public Exception BackGroundException { get; set; }
}
}namespace Monitor
{
///
/// Splash.xaml 的交互逻辑
///
public partial class Splash : Window
{
MainWindow m_MainWindow = null;//主窗口
CWorker m_Work = null;//任务
public Splash()
{
InitializeComponent();
m_MainWindow = new MainWindow();//创建主窗口对象
m_Work = new CWorker();
m_Work.BackgroundWork = this.ProcessDo;
m_Work.BackgroundWorkerCompleted += new EventHandler(m_Work_BackgroundWorkerCompleted);
}
///
/// 进度提示
///
public void ProcessDo()
{
m_MainWindow.InitData(this);
}
///
/// 移动
///
///
///
private void Grid_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
this.DragMove();
}
///
/// 窗口加载
///
///
///
private void Window_Loaded(object sender, RoutedEventArgs e)
{
m_Work.BegionWork();
}
///
/// 执行完成
///
///
///
void m_Work_BackgroundWorkerCompleted(object sender, BackgroundWorkerEventArgs e)
{
m_MainWindow.Show();
this.Close();
}
///
/// 赋值
///
///
private delegate void SetProcessLabelDelegate(string text, double processValue);
public void SetProcessValue(string text, double processValue)
{
if (!Dispatcher.CheckAccess())
{
Dispatcher.Invoke(DispatcherPriority.Send, new SetProcessLabelDelegate(SetProcessValue), text, processValue);
return;
}
this.lblProcess.Content = text;
this.ProgressControlRealValue.Value = processValue;
}
}
}上述就是小编为大家分享的利用WPF怎么实现一个进度条功能了，如果刚好有类似的疑惑，不妨参照上述分析进行理解。如果想知道更多相关知识，欢迎关注创新互联行业资讯频道。
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