Custom attributes on element

[Gediminas]

Hi,

Is it posible to set and get custom attributes on Span, ImageInline, Table and other RadRichTextBox elements? Cant find any info in this topic.

[Gediminas]

Forgot to mention... I know of Tag element. But is it posible to add more.

[Petya]

Hi Gediminas,

The Tag property is the only way to add custom information to a document element. You could serialize the desired information in a format convenient to you and add it there. 

The other option to preserve custom attributes is through a custom annotation of some sorts. This help article explains in the details the concept and demonstrates how you could adopt it.

Please note that in both cases the information will only be preserved when exporting the document to XAML format.

Regards,
Petya
Telerik

 

 

[Gediminas]

Hello Petya,

Thank you for your reply. I tried to sed json as Tag value, but get error

{"'Quote characters ' or \" are only allowed at the start of values.' Line number '72' and line position '49'."}

Inline with tag looks like this:

<t:ImageInline Width="180" Height="120" Tag="{'Guid':'58cf11db-02a9-483e-9bf0-e2a05274d0cc','Type':'a','IsThumbnail':true}" Extension="png"/>

while I try to import saved document. Is there a recomended way to store serialized data to tag without writing your own serializer?

[Petya]

Hi Gediminas,

In XAML curly brackets denote the start/end of a MarkupExtension which is the reason you are unable to place quote characters in it. You can escape the brackets to avoid the error like this:

<t:ImageInline Width="180" Height="120" Tag="{}{'Guid':'58cf11db-02a9-483e-9bf0-e2a05274d0cc','Type':'a','IsThumbnail':true}" Extension="png"/>

I hope this helps.

Regards,
Petya
Telerik