با سلام
یک فرم WPF رو وقتی با زدن کلید F11 شروع به دیباگ می شه از متد DoWork خیلی راحت رد می شه و توی متد bw_ProgressChanged گیر می کنه، دلیلش چیه؟
با تشکر
متن کد:
<left>
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
namespace WpfApplication2
{
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
}
private void Window_Loaded(object sender, RoutedEventArgs e)
{
bw.WorkerReportsProgress = true;
bw.WorkerSupportsCancellation = true;
bw.DoWork += bw_DoWork;
bw.ProgressChanged += bw_ProgressChanged;
bw.RunWorkerCompleted += bw_RunWorkerCompleted;
bw.RunWorkerAsync();
}
#region bw
private BackgroundWorker bw = new BackgroundWorker();
bool flg = true;
int tempSec = 0;
private void bw_DoWork(object sender, DoWorkEventArgs e)
{
while (flg)
{
if (tempSec < DateTime.Now.Second)
{
tempSec = DateTime.Now.Second;
bw.ReportProgress(tempSec);
}
}
}
private void bw_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
{
txtSecondCounter.Text = "Done";
/* if (!e.Cancelled && e.Error == null)//Check if the worker has been cancelled or if an error occured
{
string result = (string)e.Result;//Get the result from the background thread
lblAlarm.Text = result;//Display the result to the user
lblCounter.Content = "Done";
lblCounterTimes.Content = (++countTimes).ToString();
m_Timer.Dispose();
if ((bool)chkLoop.IsChecked)
btnStart_Click(btnStart, null);
}
else if (e.Cancelled)
{
lblAlarm.Text = "User Cancelled";
}
else
{
lblCounter.Content = "An error has occured";
}
btnStart.IsEnabled = true;
*/
}
private void bw_ProgressChanged( object sender, ProgressChangedEventArgs e)
{
txtSecondCounter.Text = e.ProgressPercentage.ToString();
}
#endregion
private void btnPlayPause_Click(object sender, RoutedEventArgs e)
{
flg = !flg;
if (flg)
bw.RunWorkerAsync();
if (btnPlayPause.Content.ToString() == "Pause")
btnPlayPause.Content = "Play";
else
btnPlayPause.Content = "Pause";
}
}
}
<left> و
و این هم کد xmal اش:
<Window x:Class="WpfApplication2.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"
xmlns:local="clr-namespace:WpfApplication2"
mc:Ignorable="d"
Title="MainWindow" Height="350" Width="525"
Loaded="Window_Loaded"
>
<DockPanel Name="pnlMain" LastChildFill="False">
<DockPanel DockPanel.Dock="Top" Height="40" Background="AliceBlue" LastChildFill="False">
</DockPanel>
<DockPanel DockPanel.Dock="Bottom" Height="40" Background="AliceBlue" LastChildFill="False">
<TextBlock Name="txtSecondCounter" Width="100" Height="30" Background="Yellow">0</TextBlock>
<Button Width="100" Name="btnPlayPause" Click="btnPlayPause_Click" DockPanel.Dock="Left">Pause</Button>
<TextBox Width="100"></TextBox>
</DockPanel>
</DockPanel>
</Window>