wpf update binding property on converter property change

I have a TextBlock which has a Foreground property bound with MultiBinding as following:

<TextBlock.Foreground>

    <MultiBinding Converter="{StaticResource BlToBrshConv1}">

        <Binding Path="SomePropertyOfOwnerClass" />

        <Binding Path="AnotherProperty"/>

    </MultiBinding>

</TextBlock.Foreground>

The converter BlToBrshConv1 is as the following:

Class BlToBrshConv1

 Implements IMultiValueConverter  

Property InheritedBrush as Brush

Public Function Convert(values() As Object, targetType As Type, parameter As Object, culture As CultureInfo) As Object Implements IMultiValueConverter.Convert

    Try

        Dim b1 As Boolean = CBool(values(0))     

        Dim b2 As Boolean = CBool(values(1))     

        If b1 = True AndAlso b2 = True Then

            ' Return SomeBrush0

        ElseIf b1 Then     

            '  Return SomeBrush1

        Else

            Return InheritedBrush

        End If

    Catch ex As Exception

        Return InheritedBrush

    End Try

Now my problem is when The property 'InheritedBrush' of the converter itself, I need to update the 'Foreground' brush.

The Foreground brush doesn't update because the bound properties ("SomePropertyOfOwnerClass" and "AnotherProperty") didnot change.

Any Ideas?

asked Nov 12 at 20:05

Askcomp eugi-tech

185

1

Add another Binding to the MultiBinding.
– Clemens
Nov 12 at 20:41

As an aside, "If b1 = True AndAlso b2 = True Then" can be simplified as "If b1 AndAlso b2 Then"
– SezMe
Nov 12 at 22:26

add a comment |

I have a TextBlock which has a Foreground property bound with MultiBinding as following:

<TextBlock.Foreground>

    <MultiBinding Converter="{StaticResource BlToBrshConv1}">

        <Binding Path="SomePropertyOfOwnerClass" />

        <Binding Path="AnotherProperty"/>

    </MultiBinding>

</TextBlock.Foreground>

The converter BlToBrshConv1 is as the following:

Class BlToBrshConv1

 Implements IMultiValueConverter  

Property InheritedBrush as Brush

Public Function Convert(values() As Object, targetType As Type, parameter As Object, culture As CultureInfo) As Object Implements IMultiValueConverter.Convert

    Try

        Dim b1 As Boolean = CBool(values(0))     

        Dim b2 As Boolean = CBool(values(1))     

        If b1 = True AndAlso b2 = True Then

            ' Return SomeBrush0

        ElseIf b1 Then     

            '  Return SomeBrush1

        Else

            Return InheritedBrush

        End If

    Catch ex As Exception

        Return InheritedBrush

    End Try

Now my problem is when The property 'InheritedBrush' of the converter itself, I need to update the 'Foreground' brush.

The Foreground brush doesn't update because the bound properties ("SomePropertyOfOwnerClass" and "AnotherProperty") didnot change.

Any Ideas?

asked Nov 12 at 20:05

Askcomp eugi-tech

185

1

Add another Binding to the MultiBinding.
– Clemens
Nov 12 at 20:41

As an aside, "If b1 = True AndAlso b2 = True Then" can be simplified as "If b1 AndAlso b2 Then"
– SezMe
Nov 12 at 22:26

add a comment |

I have a TextBlock which has a Foreground property bound with MultiBinding as following:

<TextBlock.Foreground>

    <MultiBinding Converter="{StaticResource BlToBrshConv1}">

        <Binding Path="SomePropertyOfOwnerClass" />

        <Binding Path="AnotherProperty"/>

    </MultiBinding>

</TextBlock.Foreground>

The converter BlToBrshConv1 is as the following:

Class BlToBrshConv1

 Implements IMultiValueConverter  

Property InheritedBrush as Brush

Public Function Convert(values() As Object, targetType As Type, parameter As Object, culture As CultureInfo) As Object Implements IMultiValueConverter.Convert

    Try

        Dim b1 As Boolean = CBool(values(0))     

        Dim b2 As Boolean = CBool(values(1))     

        If b1 = True AndAlso b2 = True Then

            ' Return SomeBrush0

        ElseIf b1 Then     

            '  Return SomeBrush1

        Else

            Return InheritedBrush

        End If

    Catch ex As Exception

        Return InheritedBrush

    End Try

Now my problem is when The property 'InheritedBrush' of the converter itself, I need to update the 'Foreground' brush.

The Foreground brush doesn't update because the bound properties ("SomePropertyOfOwnerClass" and "AnotherProperty") didnot change.

Any Ideas?

asked Nov 12 at 20:05

Askcomp eugi-tech

185

I have a TextBlock which has a Foreground property bound with MultiBinding as following:

<TextBlock.Foreground>

    <MultiBinding Converter="{StaticResource BlToBrshConv1}">

        <Binding Path="SomePropertyOfOwnerClass" />

        <Binding Path="AnotherProperty"/>

    </MultiBinding>

</TextBlock.Foreground>

The converter BlToBrshConv1 is as the following:

Class BlToBrshConv1

 Implements IMultiValueConverter  

Property InheritedBrush as Brush

Public Function Convert(values() As Object, targetType As Type, parameter As Object, culture As CultureInfo) As Object Implements IMultiValueConverter.Convert

    Try

        Dim b1 As Boolean = CBool(values(0))     

        Dim b2 As Boolean = CBool(values(1))     

        If b1 = True AndAlso b2 = True Then

            ' Return SomeBrush0

        ElseIf b1 Then     

            '  Return SomeBrush1

        Else

            Return InheritedBrush

        End If

    Catch ex As Exception

        Return InheritedBrush

    End Try

Now my problem is when The property 'InheritedBrush' of the converter itself, I need to update the 'Foreground' brush.

The Foreground brush doesn't update because the bound properties ("SomePropertyOfOwnerClass" and "AnotherProperty") didnot change.

Any Ideas?

c# wpf vb.net imultivalueconverter

asked Nov 12 at 20:05

Askcomp eugi-tech

185

asked Nov 12 at 20:05

Askcomp eugi-tech

185

asked Nov 12 at 20:05

Askcomp eugi-tech

185

asked Nov 12 at 20:05

Askcomp eugi-tech

185

asked Nov 12 at 20:05

Askcomp eugi-tech

185

1

Add another Binding to the MultiBinding.
– Clemens
Nov 12 at 20:41

As an aside, "If b1 = True AndAlso b2 = True Then" can be simplified as "If b1 AndAlso b2 Then"
– SezMe
Nov 12 at 22:26

add a comment |

1

Add another Binding to the MultiBinding.
– Clemens
Nov 12 at 20:41

As an aside, "If b1 = True AndAlso b2 = True Then" can be simplified as "If b1 AndAlso b2 Then"
– SezMe
Nov 12 at 22:26

Add another Binding to the MultiBinding.
– Clemens
Nov 12 at 20:41

As an aside, "If b1 = True AndAlso b2 = True Then" can be simplified as "If b1 AndAlso b2 Then"
– SezMe
Nov 12 at 22:26

add a comment |

1 Answer
1

active

oldest

votes

You could change the binding using triggers.

<TextBlock>

    <TextBlock.Style>

        <Style TargetType="TextBlock">

            <Setter Property="Foreground" Value="{Binding Defaultbrush}"/>

            <Style.Triggers>

                <DataTrigger Binding="{Binding SomePropertyOfOwnerClass}">

                    <Setter Property="Foreground" Value="{Binding SomeBrush1}"/>

                </DataTrigger>

                <DataTrigger Binding="{Binding AnotherProperty}">

                    <Setter Property="Foreground" Value="{Binding InheritedBrush}"/>

                </DataTrigger>

                <MultiDataTrigger>

                    <MultiDataTrigger.Conditions>

                        <Condition Binding="{Binding SomePropertyOfOwnerClass}" Value="True"/>

                        <Condition Binding="{Binding AnotherProperty}" Value="True"/>

                    </MultiDataTrigger.Conditions>

                    <Setter Property="Foreground" Value="{Binding SomeBrush0}"/>

                </MultiDataTrigger>

            </Style.Triggers>

        </Style>

    </TextBlock.Style>

</TextBlock>

answered Nov 12 at 23:01

Neil B

8691412

add a comment |

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1 Answer
1

active

oldest

votes

1 Answer
1

active

oldest

votes

You could change the binding using triggers.

<TextBlock>

    <TextBlock.Style>

        <Style TargetType="TextBlock">

            <Setter Property="Foreground" Value="{Binding Defaultbrush}"/>

            <Style.Triggers>

                <DataTrigger Binding="{Binding SomePropertyOfOwnerClass}">

                    <Setter Property="Foreground" Value="{Binding SomeBrush1}"/>

                </DataTrigger>

                <DataTrigger Binding="{Binding AnotherProperty}">

                    <Setter Property="Foreground" Value="{Binding InheritedBrush}"/>

                </DataTrigger>

                <MultiDataTrigger>

                    <MultiDataTrigger.Conditions>

                        <Condition Binding="{Binding SomePropertyOfOwnerClass}" Value="True"/>

                        <Condition Binding="{Binding AnotherProperty}" Value="True"/>

                    </MultiDataTrigger.Conditions>

                    <Setter Property="Foreground" Value="{Binding SomeBrush0}"/>

                </MultiDataTrigger>

            </Style.Triggers>

        </Style>

    </TextBlock.Style>

</TextBlock>

answered Nov 12 at 23:01

Neil B

8691412

add a comment |

You could change the binding using triggers.

<TextBlock>

    <TextBlock.Style>

        <Style TargetType="TextBlock">

            <Setter Property="Foreground" Value="{Binding Defaultbrush}"/>

            <Style.Triggers>

                <DataTrigger Binding="{Binding SomePropertyOfOwnerClass}">

                    <Setter Property="Foreground" Value="{Binding SomeBrush1}"/>

                </DataTrigger>

                <DataTrigger Binding="{Binding AnotherProperty}">

                    <Setter Property="Foreground" Value="{Binding InheritedBrush}"/>

                </DataTrigger>

                <MultiDataTrigger>

                    <MultiDataTrigger.Conditions>

                        <Condition Binding="{Binding SomePropertyOfOwnerClass}" Value="True"/>

                        <Condition Binding="{Binding AnotherProperty}" Value="True"/>

                    </MultiDataTrigger.Conditions>

                    <Setter Property="Foreground" Value="{Binding SomeBrush0}"/>

                </MultiDataTrigger>

            </Style.Triggers>

        </Style>

    </TextBlock.Style>

</TextBlock>

answered Nov 12 at 23:01

Neil B

8691412

add a comment |

You could change the binding using triggers.

<TextBlock>

    <TextBlock.Style>

        <Style TargetType="TextBlock">

            <Setter Property="Foreground" Value="{Binding Defaultbrush}"/>

            <Style.Triggers>

                <DataTrigger Binding="{Binding SomePropertyOfOwnerClass}">

                    <Setter Property="Foreground" Value="{Binding SomeBrush1}"/>

                </DataTrigger>

                <DataTrigger Binding="{Binding AnotherProperty}">

                    <Setter Property="Foreground" Value="{Binding InheritedBrush}"/>

                </DataTrigger>

                <MultiDataTrigger>

                    <MultiDataTrigger.Conditions>

                        <Condition Binding="{Binding SomePropertyOfOwnerClass}" Value="True"/>

                        <Condition Binding="{Binding AnotherProperty}" Value="True"/>

                    </MultiDataTrigger.Conditions>

                    <Setter Property="Foreground" Value="{Binding SomeBrush0}"/>

                </MultiDataTrigger>

            </Style.Triggers>

        </Style>

    </TextBlock.Style>

</TextBlock>

answered Nov 12 at 23:01

Neil B

8691412

You could change the binding using triggers.

<TextBlock>

    <TextBlock.Style>

        <Style TargetType="TextBlock">

            <Setter Property="Foreground" Value="{Binding Defaultbrush}"/>

            <Style.Triggers>

                <DataTrigger Binding="{Binding SomePropertyOfOwnerClass}">

                    <Setter Property="Foreground" Value="{Binding SomeBrush1}"/>

                </DataTrigger>

                <DataTrigger Binding="{Binding AnotherProperty}">

                    <Setter Property="Foreground" Value="{Binding InheritedBrush}"/>

                </DataTrigger>

                <MultiDataTrigger>

                    <MultiDataTrigger.Conditions>

                        <Condition Binding="{Binding SomePropertyOfOwnerClass}" Value="True"/>

                        <Condition Binding="{Binding AnotherProperty}" Value="True"/>

                    </MultiDataTrigger.Conditions>

                    <Setter Property="Foreground" Value="{Binding SomeBrush0}"/>

                </MultiDataTrigger>

            </Style.Triggers>

        </Style>

    </TextBlock.Style>

</TextBlock>

answered Nov 12 at 23:01

Neil B

8691412

answered Nov 12 at 23:01

Neil B

8691412

answered Nov 12 at 23:01

Neil B

8691412

answered Nov 12 at 23:01

Neil B

8691412

add a comment |

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