Hi,
I have Migrated from .net Framework 3.5 to .net Framework 4.0
After that I am facing the ProgressBar problem.
In my application in .net Framework 4.0 I am using MultiBinding Converter as follows,
In following converter I am not getting the respective Grid in currGrid which is getting me proper in .net Framework 3.5 as currGrid=progressGrid which is expected.
So how I can overcome from this problem in .net Framework 4.0
How I can get currGrid as progressGrid like in .net Framework 3.5
I want to fill that grid as progress value increases as follows,
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
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;
using System.Windows.Threading;
using System.Globalization;
namespace MultiBindingConverter
{
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
public double _val = 0;
public MainWindow()
{
InitializeComponent();
for (int i = 0; i <= 100; i++)
{
_val=_val+10;
}
}
private void Button_Click(object sender, RoutedEventArgs e)
{
}
}
public class ProgressBarBrushConverter : IMultiValueConverter
{
public double _value = 100;
DispatcherTimer tm;
Grid currGrid = new Grid();
Brush myGray = new SolidColorBrush(Color.FromRgb(157, 163, 165));
Brush myGreen = new SolidColorBrush(Color.FromRgb(124, 241, 183));
// Methods
public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
{
try
{
if (values != null && values.Length > 2)
{
double value = (double)values[0];
bool bIsIndeterminate = (bool)values[1];
double maxValue = (double)values[2];
double minValue = (double)values[3];currGrid = values[4] as Grid;
System.Windows.Visibility visible = (System.Windows.Visibility)values[5];
if (visible != System.Windows.Visibility.Visible)
{
if (tm != null && tm.IsEnabled)
tm.Stop();
}
else
{
if (bIsIndeterminate)
{
if (tm == null)
{
tm = new DispatcherTimer();
tm.Tick += new EventHandler(tm_Tick);
tm.Interval = new TimeSpan(1000000);
}
tm.Start();
}
else
{
if (tm != null && tm.IsEnabled)
tm.Stop();
if (maxValue <= 0)
maxValue = 100;
int SectorNumber = (int)Math.Ceiling(value / ((maxValue - minValue) / 10));
for (int i = 0; i < currGrid.Children.Count; i++)
{
Object myRect = currGrid.Children[i];
if (myRect.GetType() == typeof(Rectangle))
{
Rectangle rect = myRect as Rectangle;
if (i < SectorNumber)
rect.Fill = myGreen;
else
rect.Fill = myGray;
}
}
}
}
}
}
catch (Exception)
{
if (tm != null && tm.IsEnabled)
tm.Stop();
return Brushes.White;
}
return Brushes.White;
}
void tm_Tick(object sender, EventArgs e)
{
int iGreenIndex = -1;
for (int i = 0; i < currGrid.Children.Count; i++)
{
Object myRect = currGrid.Children[i];
if (myRect.GetType() == typeof(Rectangle))
{
Rectangle rect = myRect as Rectangle;
if (rect.Fill == myGreen)
{
iGreenIndex = i;
rect.Fill = myGray;
break;
}
}
}
if (iGreenIndex == -1)
(currGrid.Children[0] as Rectangle).Fill = myGreen;
else
{
if (iGreenIndex + 1 < currGrid.Children.Count)
{
if (currGrid.Children[iGreenIndex + 1].GetType() == typeof(Rectangle))
(currGrid.Children[iGreenIndex + 1] as Rectangle).Fill = myGreen;
}
}
}
public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture)
{
return null;
}
}
}
<Window x:Class="MultiBindingConverter.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="350" Width="525"
xmlns:local="clr-namespace:MultiBindingConverter"><Window.Resources><ResourceDictionary Source="Controls.xaml"/></Window.Resources><StackPanel><Button Content="Progress" Width="72" Height="21" Click="Button_Click"></Button><ProgressBar Width="250" Height="20" Value="10"></ProgressBar></StackPanel></Window>and Have ResourceDictionary as follows,
<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="clr-namespace:MultiBindingConverter"><Style TargetType="{x:Type ProgressBar}" ><Setter Property="BorderThickness" Value="1"/><Setter Property="Template"><Setter.Value><ControlTemplate TargetType="{x:Type ProgressBar}" ><Grid x:Name="parent1"><Border x:Name="PART_Track"><Grid x:Name="parent2"><Grid.ColumnDefinitions><ColumnDefinition Width="*"/><!--<ColumnDefinition Width="35"/>--></Grid.ColumnDefinitions><Grid x:Name="parent"><Grid Grid.Column="0" x:Name="progressGrid"><Grid.ColumnDefinitions><ColumnDefinition/><ColumnDefinition/><ColumnDefinition/><ColumnDefinition/><ColumnDefinition/><ColumnDefinition/><ColumnDefinition/><ColumnDefinition/><ColumnDefinition/><ColumnDefinition/></Grid.ColumnDefinitions><Rectangle Stroke="#42B642" StrokeThickness="1" Grid.Column="0"/><Rectangle Stroke="#42B642" StrokeThickness="1" Grid.Column="1"/><Rectangle Stroke="#42B642" StrokeThickness="1" Grid.Column="2"/><Rectangle Stroke="#42B642" StrokeThickness="1" Grid.Column="3"/><Rectangle Stroke="#42B642" StrokeThickness="1" Grid.Column="4"/><Rectangle Stroke="#42B642" StrokeThickness="1" Grid.Column="5"/><Rectangle Stroke="#42B642" StrokeThickness="1" Grid.Column="6"/><Rectangle Stroke="#42B642" StrokeThickness="1" Grid.Column="7"/><Rectangle Stroke="#42B642" StrokeThickness="1" Grid.Column="8"/><Rectangle Stroke="#42B642" StrokeThickness="1" Grid.Column="9"/><Grid.Background><MultiBinding><MultiBinding.Converter><local:ProgressBarBrushConverter /></MultiBinding.Converter><MultiBinding.ConverterParameter>1</MultiBinding.ConverterParameter><Binding Path="Value" RelativeSource="{RelativeSource TemplatedParent}"/><Binding Path="IsIndeterminate" RelativeSource="{RelativeSource TemplatedParent}"/><Binding Path="Maximum" RelativeSource="{RelativeSource TemplatedParent}"/><Binding Path="Minimum" RelativeSource="{RelativeSource TemplatedParent}"/><Binding ElementName="progressGrid" /><Binding Path="Visibility" RelativeSource="{RelativeSource TemplatedParent}"/><!--<Binding ElementName="txtShowValue" />--></MultiBinding></Grid.Background></Grid></Grid></Grid></Border></Grid></ControlTemplate></Setter.Value></Setter></Style></ResourceDictionary>