backgroundworker+wpf -> frozen window
- by Valetudox
-progressbar always 0%
-the window is froozen (while DoWork r.)
-if System.threading.thread.sleep(1) on - works perfectly
whats the problem?
private void btnNext_Click(object sender, RoutedEventArgs e)
{
this._worker = new BackgroundWorker();
this._worker.DoWork += delegate(object s, DoWorkEventArgs args)
{
long current = 1;
long max = generalMaxSzam();
for (int i = 1; i <= 30; i++)
{
for (int j = i+1; j <= 30; j++)
{
for (int c = j+1; c <= 30; c++)
{
for (int h = c+1; h <= 30; h++)
{
for (int d = h+1; d <= 30; d++)
{
int percent = Convert.ToInt32(((decimal)current / (decimal)max) * 100);
this._worker.ReportProgress(percent);
current++;
//System.Threading.Thread.Sleep(1); - it works well
}
}
}
}
}
};
this._worker.WorkerReportsProgress = true;
this._worker.RunWorkerCompleted += delegate(object s, RunWorkerCompletedEventArgs args)
{
this.Close();
};
this._worker.ProgressChanged += delegate(object s, ProgressChangedEventArgs args)
{
this.statusPG.Value = args.ProgressPercentage;
};
this._worker.RunWorkerAsync();
}
<Window x:Class="SzerencsejatekProgram.Create"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="Létrehozás" mc:Ignorable="d" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" Height="500" Width="700">
<DockPanel>
<Button DockPanel.Dock="Right" Name="btnNext" Width="80" Click="btnNext_Click">Tovább</Button>
<StatusBar DockPanel.Dock="Bottom">
<StatusBar.ItemsPanel>
<ItemsPanelTemplate>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="auto"/>
<ColumnDefinition Width="auto"/>
</Grid.ColumnDefinitions>
</Grid>
</ItemsPanelTemplate>
</StatusBar.ItemsPanel>
<StatusBarItem Grid.Column="1">
<TextBlock Name="statusText"></TextBlock>
</StatusBarItem>
<StatusBarItem Grid.Column="2">
<ProgressBar Name="statusPG" Width="80" Height="18" IsEnabled="False" />
</StatusBarItem>
<StatusBarItem Grid.Column="3">
<Button Name="statusB" IsCancel="True" IsEnabled="False">Cancel</Button>
</StatusBarItem>
</StatusBar>
</DockPanel>
</Window>
