Mixing
multibinding, converters and setters : unexpected error
0
I am trying to use a multibinding style for a button in WPF, but I get an awkward error :
System.ArgumentException : ''System.Drawing.SolidBrush' n'est pas une valeur valide pour la propriété 'System.Windows.Controls.Panel.Background' d'une méthode Setter.'
Yet I am applying my setters to Button.BackgroundProperty...
here is the multibinding:
<Button
Height="20"
Margin="2,0,2,2"
VerticalAlignment="Bottom"
Click="Btn_summary_OnClick"
Content="Résumé"
Name="btn_summary">
<Button.Style>
<MultiBinding Converter="{StaticResource StyleConverter1}">
<Binding ElementName="listBoxBooks" Path="SelectedItem" />
<Binding Source="{StaticResource bookManagement}" Path="SelectedTab" Mode="OneWay"/>
<Binding RelativeSource="{RelativeSource Self}" Path="Name"/>
</MultiBinding>
</Button.Style>
</Button>
and the converter:
public class StyleConverter1 : IMultiValueConverter
{
public object Convert(object values, Type targetType, object parameter, CultureInfo culture)
{
Style styleToApply = new Style(typeof(Button));
Object selectedItem = values[0];
if (selectedItem == null)
{
styleToApply.Setters.Add(new Setter(Button.IsEnabledProperty, false));
return styleToApply;
}
styleToApply.Setters.Add(new Setter(Button.IsEnabledProperty, true));
string selectedTab = values[1] as string;
if (selectedTab == null)
{
return styleToApply;
}
string buttonName = values[2] as string;
if ((selectedTab.Equals("summary") && buttonName.Equals("btn_summary"))
|| (selectedTab.Equals("end") && buttonName.Equals("btn_end"))
|| (selectedTab.Equals("amazon") && buttonName.Equals("btn_amazon"))
)
{
styleToApply.Setters.Add(new Setter(Button.BackgroundProperty,Brushes.Yellow));
styleToApply.Setters.Add(new Setter(Button.ForegroundProperty, Brushes.RoyalBlue));
}
else
{
styleToApply.Setters.Add(new Setter(Button.ForegroundProperty, Brushes.Yellow));
styleToApply.Setters.Add(new Setter(Button.BackgroundProperty, Brushes.RoyalBlue));
}
return styleToApply;
}
public object ConvertBack(object value, Type targetTypes, object parameter, CultureInfo culture)
{
throw new NotImplementedException();
}
}
I don't understand why VS want to apply my setters to a panel.
thank you
c# wpf binding multibinding
asked Nov 20 '18 at 9:05
lolveleylolveley
72111022
add a comment |
0
I am trying to use a multibinding style for a button in WPF, but I get an awkward error :
System.ArgumentException : ''System.Drawing.SolidBrush' n'est pas une valeur valide pour la propriété 'System.Windows.Controls.Panel.Background' d'une méthode Setter.'
Yet I am applying my setters to Button.BackgroundProperty...
here is the multibinding:
<Button
Height="20"
Margin="2,0,2,2"
VerticalAlignment="Bottom"
Click="Btn_summary_OnClick"
Content="Résumé"
Name="btn_summary">
<Button.Style>
<MultiBinding Converter="{StaticResource StyleConverter1}">
<Binding ElementName="listBoxBooks" Path="SelectedItem" />
<Binding Source="{StaticResource bookManagement}" Path="SelectedTab" Mode="OneWay"/>
<Binding RelativeSource="{RelativeSource Self}" Path="Name"/>
</MultiBinding>
</Button.Style>
</Button>
and the converter:
public class StyleConverter1 : IMultiValueConverter
{
public object Convert(object values, Type targetType, object parameter, CultureInfo culture)
{
Style styleToApply = new Style(typeof(Button));
Object selectedItem = values[0];
if (selectedItem == null)
{
styleToApply.Setters.Add(new Setter(Button.IsEnabledProperty, false));
return styleToApply;
}
styleToApply.Setters.Add(new Setter(Button.IsEnabledProperty, true));
string selectedTab = values[1] as string;
if (selectedTab == null)
{
return styleToApply;
}
string buttonName = values[2] as string;
if ((selectedTab.Equals("summary") && buttonName.Equals("btn_summary"))
|| (selectedTab.Equals("end") && buttonName.Equals("btn_end"))
|| (selectedTab.Equals("amazon") && buttonName.Equals("btn_amazon"))
)
{
styleToApply.Setters.Add(new Setter(Button.BackgroundProperty,Brushes.Yellow));
styleToApply.Setters.Add(new Setter(Button.ForegroundProperty, Brushes.RoyalBlue));
}
else
{
styleToApply.Setters.Add(new Setter(Button.ForegroundProperty, Brushes.Yellow));
styleToApply.Setters.Add(new Setter(Button.BackgroundProperty, Brushes.RoyalBlue));
}
return styleToApply;
}
public object ConvertBack(object value, Type targetTypes, object parameter, CultureInfo culture)
{
throw new NotImplementedException();
}
}
I don't understand why VS want to apply my setters to a panel.
thank you
c# wpf binding multibinding
asked Nov 20 '18 at 9:05
lolveleylolveley
72111022
For further questions, please provide the Error Message in English. That way more people are able to understand your problem. (In this case the Text isn't that important, just a heads up for future questions)
– Tobias Tengler
Nov 20 '18 at 9:16
add a comment |
0
0
0
I am trying to use a multibinding style for a button in WPF, but I get an awkward error :
System.ArgumentException : ''System.Drawing.SolidBrush' n'est pas une valeur valide pour la propriété 'System.Windows.Controls.Panel.Background' d'une méthode Setter.'
Yet I am applying my setters to Button.BackgroundProperty...
here is the multibinding:
<Button
Height="20"
Margin="2,0,2,2"
VerticalAlignment="Bottom"
Click="Btn_summary_OnClick"
Content="Résumé"
Name="btn_summary">
<Button.Style>
<MultiBinding Converter="{StaticResource StyleConverter1}">
<Binding ElementName="listBoxBooks" Path="SelectedItem" />
<Binding Source="{StaticResource bookManagement}" Path="SelectedTab" Mode="OneWay"/>
<Binding RelativeSource="{RelativeSource Self}" Path="Name"/>
</MultiBinding>
</Button.Style>
</Button>
and the converter:
public class StyleConverter1 : IMultiValueConverter
{
public object Convert(object values, Type targetType, object parameter, CultureInfo culture)
{
Style styleToApply = new Style(typeof(Button));
Object selectedItem = values[0];
if (selectedItem == null)
{
styleToApply.Setters.Add(new Setter(Button.IsEnabledProperty, false));
return styleToApply;
}
styleToApply.Setters.Add(new Setter(Button.IsEnabledProperty, true));
string selectedTab = values[1] as string;
if (selectedTab == null)
{
return styleToApply;
}
string buttonName = values[2] as string;
if ((selectedTab.Equals("summary") && buttonName.Equals("btn_summary"))
|| (selectedTab.Equals("end") && buttonName.Equals("btn_end"))
|| (selectedTab.Equals("amazon") && buttonName.Equals("btn_amazon"))
)
{
styleToApply.Setters.Add(new Setter(Button.BackgroundProperty,Brushes.Yellow));
styleToApply.Setters.Add(new Setter(Button.ForegroundProperty, Brushes.RoyalBlue));
}
else
{
styleToApply.Setters.Add(new Setter(Button.ForegroundProperty, Brushes.Yellow));
styleToApply.Setters.Add(new Setter(Button.BackgroundProperty, Brushes.RoyalBlue));
}
return styleToApply;
}
public object ConvertBack(object value, Type targetTypes, object parameter, CultureInfo culture)
{
throw new NotImplementedException();
}
}
I don't understand why VS want to apply my setters to a panel.
thank you
c# wpf binding multibinding
asked Nov 20 '18 at 9:05
lolveleylolveley
72111022
I am trying to use a multibinding style for a button in WPF, but I get an awkward error :
System.ArgumentException : ''System.Drawing.SolidBrush' n'est pas une valeur valide pour la propriété 'System.Windows.Controls.Panel.Background' d'une méthode Setter.'
Yet I am applying my setters to Button.BackgroundProperty...
here is the multibinding:
<Button
Height="20"
Margin="2,0,2,2"
VerticalAlignment="Bottom"
Click="Btn_summary_OnClick"
Content="Résumé"
Name="btn_summary">
<Button.Style>
<MultiBinding Converter="{StaticResource StyleConverter1}">
<Binding ElementName="listBoxBooks" Path="SelectedItem" />
<Binding Source="{StaticResource bookManagement}" Path="SelectedTab" Mode="OneWay"/>
<Binding RelativeSource="{RelativeSource Self}" Path="Name"/>
</MultiBinding>
</Button.Style>
</Button>
and the converter:
public class StyleConverter1 : IMultiValueConverter
{
public object Convert(object values, Type targetType, object parameter, CultureInfo culture)
{
Style styleToApply = new Style(typeof(Button));
Object selectedItem = values[0];
if (selectedItem == null)
{
styleToApply.Setters.Add(new Setter(Button.IsEnabledProperty, false));
return styleToApply;
}
styleToApply.Setters.Add(new Setter(Button.IsEnabledProperty, true));
string selectedTab = values[1] as string;
if (selectedTab == null)
{
return styleToApply;
}
string buttonName = values[2] as string;
if ((selectedTab.Equals("summary") && buttonName.Equals("btn_summary"))
|| (selectedTab.Equals("end") && buttonName.Equals("btn_end"))
|| (selectedTab.Equals("amazon") && buttonName.Equals("btn_amazon"))
)
{
styleToApply.Setters.Add(new Setter(Button.BackgroundProperty,Brushes.Yellow));
styleToApply.Setters.Add(new Setter(Button.ForegroundProperty, Brushes.RoyalBlue));
}
else
{
styleToApply.Setters.Add(new Setter(Button.ForegroundProperty, Brushes.Yellow));
styleToApply.Setters.Add(new Setter(Button.BackgroundProperty, Brushes.RoyalBlue));
}
return styleToApply;
}
public object ConvertBack(object value, Type targetTypes, object parameter, CultureInfo culture)
{
throw new NotImplementedException();
}
}
I don't understand why VS want to apply my setters to a panel.
thank you
c# wpf binding multibinding
c# wpf binding multibinding
asked Nov 20 '18 at 9:05
lolveleylolveley
72111022
asked Nov 20 '18 at 9:05
lolveleylolveley
72111022
asked Nov 20 '18 at 9:05
lolveleylolveley
72111022
asked Nov 20 '18 at 9:05
lolveleylolveley
72111022
asked Nov 20 '18 at 9:05
lolveleylolveley
72111022
72111022
For further questions, please provide the Error Message in English. That way more people are able to understand your problem. (In this case the Text isn't that important, just a heads up for future questions)
– Tobias Tengler
Nov 20 '18 at 9:16
add a comment |
For further questions, please provide the Error Message in English. That way more people are able to understand your problem. (In this case the Text isn't that important, just a heads up for future questions)
– Tobias Tengler
Nov 20 '18 at 9:16
For further questions, please provide the Error Message in English. That way more people are able to understand your problem. (In this case the Text isn't that important, just a heads up for future questions)
– Tobias Tengler
Nov 20 '18 at 9:16
For further questions, please provide the Error Message in English. That way more people are able to understand your problem. (In this case the Text isn't that important, just a heads up for future questions)
– Tobias Tengler
Nov 20 '18 at 9:16
add a comment |
1 Answer
1
active
oldest
votes
3
System.Drawing is the namespace for Winforms. Delete this and replace with the WPF equivalent System.Windows.Media, and you'll then use the right Brushes class.
answered Nov 20 '18 at 9:09
PeregrinePeregrine
2,37721230
add a comment |
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1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
3
System.Drawing is the namespace for Winforms. Delete this and replace with the WPF equivalent System.Windows.Media, and you'll then use the right Brushes class.
answered Nov 20 '18 at 9:09
PeregrinePeregrine
2,37721230
add a comment |
3
System.Drawing is the namespace for Winforms. Delete this and replace with the WPF equivalent System.Windows.Media, and you'll then use the right Brushes class.
answered Nov 20 '18 at 9:09
PeregrinePeregrine
2,37721230
add a comment |
3
3
3
System.Drawing is the namespace for Winforms. Delete this and replace with the WPF equivalent System.Windows.Media, and you'll then use the right Brushes class.
answered Nov 20 '18 at 9:09
PeregrinePeregrine
2,37721230
System.Drawing is the namespace for Winforms. Delete this and replace with the WPF equivalent System.Windows.Media, and you'll then use the right Brushes class.
answered Nov 20 '18 at 9:09
PeregrinePeregrine
2,37721230
answered Nov 20 '18 at 9:09
PeregrinePeregrine
2,37721230
answered Nov 20 '18 at 9:09
PeregrinePeregrine
2,37721230
answered Nov 20 '18 at 9:09
PeregrinePeregrine
2,37721230
2,37721230
add a comment |
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For further questions, please provide the Error Message in English. That way more people are able to understand your problem. (In this case the Text isn't that important, just a heads up for future questions)
– Tobias Tengler
Nov 20 '18 at 9:16