Change SimpleCellContainer background color

[Leire]

Hi, I wanted to know if it's possible to change the color of tasks in the colum area. In my case, I need to put colum background on blue if the task has a children. I put an example below of how I want to be the result. 

 

[Dilyan Traykov]

Hi Leire,

Thank you for the provided image.

Based on it, I set up a small sample project to demonstrate a possible approach for achieving the desired result.

It involves modifying the default styles of the CellContainer, CellHighlightContainer, TreeCellContainer and TreeCellHighlightContainer elements to ensure they correctly display the desired Background. I then defined an IMultiValueConverter and return an appropriate color based on the item's Children collection.

Please have a look at the attached project and let me know if a similar approach would work for you.

Regards,
Dilyan Traykov
Progress Telerik

[Leire]

Hi Dylan, 

First of all, thank you for your answer, it helped me to solve the problems with the CellContainers.

The problem cames with the TreeCellContainers. I don't know why, but I have to use the SimpleTreeCellContainer property instead of the TreeCellContainer one, because if not, it doesn't recognize the TreeColums. Do you know why could this be? 

[Dilyan Traykov]

Hi Leire,

A SimpleTreeCellContainer container is created if no template is specified for the column definition. If the CellTemplate property is set, a TreeCellContainer is created instead. With this in mind, would you find it possible to use the CellTemplate property in your project in a similar manner?

                    <telerik:ColumnDefinition.CellTemplate>
                        <DataTemplate>
                            <TextBlock Text="{Binding FormattedValue}" VerticalAlignment="Center" />
                        </DataTemplate>
                    </telerik:ColumnDefinition.CellTemplate>

You can extract this template as a resource to more easily apply it to the different column definitions.

[Leire]

Hi Dylan,

Thank you so much for your help, it worked for me!