How to dynamically change color of the textblock inside grid

How to dynamically change color of the textblock inside grid

09-11-2008 2:08 AM |

                           
In designmode this much code is written
                       <Stackpanel>           
                                  

 <ListBox x:Name="lbMenu" Width="110" SelectionChanged="lbMenu_SelectionChanged" Foreground="#FF316468">
                        <ListBox.ItemTemplate>
                            <DataTemplate>
                                <Grid x:Name="gridView" ShowGridLines="False" Background="{Binding Color}"   >
                                    <Grid.ColumnDefinitions>
                                        <ColumnDefinition Width="90">
                                       
                                        </ColumnDefinition>
                                        <ColumnDefinition Width="12"></ColumnDefinition>
                                    </Grid.ColumnDefinitions>
                                  
                                   
                                    <TextBlock Text="{Binding Text}" Foreground="{Binding ForeColor}" FontWeight="Bold" FontFamily="Tahoma"  Grid.Column="0" Height="18" Width="120"  FontSize="10.8">
                                       
                                        </TextBlock>
         
                                    
                                    <Image Grid.Column="1" Source="{Binding ImageUrl}" HorizontalAlignment="Left" Height="7" Width="4">
                                    </Image>
                                   
                                </Grid>

                            </DataTemplate>
                        </ListBox.ItemTemplate>
                    </ListBox>
                </StackPanel>

but when i changing the background color and foreground in code behind it changes only once after that it becomes empty even no text is shown ? can anyone explain me what is the problem?

Re: How to dynamically change color of the textblock inside grid

09-11-2008 10:25 AM |

I implemented your code but the ItemTemplate doesn't work, in particular Color and ForeColor.. weird indeed. I guess that all Items of a listbox must have the same style, and colors are parts of it.

Re: Re: How to dynamically change color of the textblock inside grid

09-11-2008 11:38 PM |

 When I implemented it. It actually works once but not when i tried again to change. means if u click once then it will change but if click it twice or thrice it will become blank. I dont know why it happens.

Re: How to dynamically change color of the textblock inside grid

09-14-2008 11:24 PM |

Hello, what's you data source? Is it a class that implements INotifyPropertyChanged? If not, when a property in the data source changes, the modification won't be displayed on the Controls. Try something like this:

public class Source : INotifyPropertyChanged
{
public event PropertyChangedEventHandler PropertyChanged;

private void NotifyChange(string propertyName)
{
if (this.PropertyChanged != null)
{
this.PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
}
}

private Brush foreColor;

public Brush ForeColor
{
get { return foreColor; }
set
{
foreColor = value;
NotifyChange("ForeColor");
}
}

//Other fields and properties.
}

Re: How to dynamically change color of the textblock inside grid

09-15-2008 12:34 AM |

 I already tried it but it wont work. it works once or twice only.

Re: Re: How to dynamically change color of the textblock inside grid

09-15-2008 12:36 AM |

Can you post more code or even a sample project?